US 3092908 A
Description (OCR text may contain errors)
June 11, 1963 P. FLATLAND ASPIRATING DENTAL DRILL 2 Sheets-Sheet 1 Filed July 20, 1959 INVENTOR. LLOYD P FLATLAND ATTORNEYS June 11, 1963 P. FLATLAND 3,092,908
ASPIRATING DENTAL DRILL Filed July 20 1959 2 Sheets-Sheet 2 INVENTOR. LLOYD P FLAT LAND (Z/w a /07 A T TORNEVS United States Patent Office Patented June II, 1963 3,092,908 ASPERATIN G DENTAL DRILL Lloyd P. Flatland, 462 Gonzalez Drive, San Francisco, Calif. Filed July 20, 1959, Ser. No. 828,175 8 Claims. (CI. 32-27) The invention relates to ultra high speed dental drills and, more particularly, to a high speed dental drill which aspirates from the area being drilled.
The latter years have witnessed rapid advances in the art of high speed dental drills. Dental air turbines, despite certain disadvantages, including the need for a pressurized air source and connections, the expulsion of oil in the oral cavity, and a generally undesirable hygienic environment, are in wide use.
Likewise coming into ever greater favor is the high volume dental aspirator, a vacuum device which aspirates or draws air in large volume away from the oral area in which the dentist is working. Here again, there are disadvantages such as the need to locate the aspirating instrument, or suction tube, fairly near to the area being worked yet out of the line of the dentists vision. Quite frequently, a large portion of a dental nurses or dental assistants time is consumed in manipulating and holding the aspirator in just the right position.
It is therefore an object of the invention to provide a high speed dental drill which in itself serves as an aspirator.
It is another object of the invention to provide a dental drill in which aspiration occurs precisely at the location desired at all times.
It is yet another object of the invention to provide a dental drill which eliminates the need for a separate additional tool, or device, such as the aspirator heretofore used to be inserted into an already cluttered mouth, and which frees the time of a dental assistant for other more important tasks than holding and adjusting the position of an aspirator.
It is still another object of the invention to provide a dental drill in which a stream of fluid, such as water, or air, or moisture spray, is directed into the area being drilled, regardless of the position of the drill, and in which the water, air, or spray is thereupon immediately withdrawn by aspiration from the area, along with entrained detritus, and replaced by the clean water, air, or spray stream continuously issuing from the jet.
It is a further object of the invention to provide a dental drill which rotates at an extremely high speed.
It is yet a further object of the invention to provide a high speed dental drill which operates in a substantially noiseless and vibration-free manner, the levels being so low as to be not discernible for all practical purposes.
It is still a further object of the invention to provide a dental drill which can be powered, or actuated, by virtue of the vacuum created by the aspirator machinery already owned by many dentists.
It is yet a further object of the invention to provide a vacuum powered dental drill which exerts a substantial torque on the dental cutting and excavating instrument.
It is still another object of the invention to provide a dental drill whose speed can be nicely controlled by movement of a valve located immediately adjacent the drilling head and which is therefore highly convenient and which, when opened to reduce speed, increases aspiration.
It is yet another object of the invention to provide a very high speed drill which does not require a source of compressed air and costly attachments and connections related thereto.
It is a further object of the invention to provide a dental drill comparable in configuration to the standard contraangle but which enables a dentist quickly to adjust and regulate the orientation and angularity of the offset knee portion, thus enabling the dentist to approach the working area from the most convenient direction.
It is still another object of the invention to provide a combined high speed drill and aspirating head which has but few moving parts, is light and highly maneuverable, and which can readily be put to use in any dental oflice having an aspirator or other vacuum source.
It is a further object of the invention to provide a dental drill which is powered by a vacuum and which concurrently utilizes the vacuum as an aspirating device.
It is another object of the invention to provide a generally improved high speed dental drill.
Other objects, together with the foregoing, are attained in the embodiments described in the following description and shown in the accompanying drawings, in which:
FIGURE 1 is a side elevational view of one form of the drill, a portion of the connecting hose to the aspiratiug equipment being shown in section;
FIGURE 2 is a top plan view of the form of device shown in FIGURE 1;
FIGURE 3 is a section of the drilling head, to an enlarged scale, the plane of section being indicated by the line 33 in FIGURE 2;
FIGURE 4 is a side elevational view of a preferred form of drill, a portion of the knee, or angle piece, and a portion of the sheath being shown in section to reveal the face-to-face engagement therebetween, the collar valve being shown in partly open position;
FIGURE 5 is a bottom view of the form of device shown in FIGURE 4, but with the collar valve in fully open position, and with the bur and chuck removed for clarity. of disclosure;
FIGURE 6 is a section, to an enlarged scale, the plane of section being indicated by the line 6-6 in FIGURE 5; and
FIGURE 7 is a partly idealized representation of a section of a tooth being worked on, showing how the water jet and the aspirated air cooperate in the drilling operation.
While the dental drill of the invention is susceptible of numerous physical embodiments, depending upon the environment and requirements of use, substantial numbers of the herein shown and described embodiments have been made, used and exhaustively tested, and all have performed in an eminently satisfactory manner.
Referring at this time to the form of device shown in FIGURES l3, it can be seen that a dental drill of the invention, generally designated by the numeral 11, includes an elongated hollow sheath 12, or handle, adapted at one end to be connected to a vacuum or collapse-resistant type of hose 13 leading to a conventional high volume dental aspirating machine (not shown) or other source of vacuum.
Mounted on the other end of the sheath :12 is a hollow angle piece 16, or knee, or knee extension, or knee-to-head section, the longitudinal axis of the knee being, for example, at an angle of about twelve degrees with respect to the longitudinal axis of the sheath.
Mounted in turn on the end of the knee 16 is a generally cylindrical drilling head 17. In the usual dental angle, the drilling head is at right angles to the knee portion. In the form of device shown, however, the axis 18 of the drilling head is five degrees off the perpendicular line 19 to the axis of the knee 16, so that a bur 21, for example, whose rotational axis is coincident with the head axis 18, is inclined forwardly away from the perpendicular line 19. It has been found that greater flexibility of use can be obtained where the angularity of the bur with respect to the sheath is obtained in these two steps rather than in the one large step of seventeen or so degrees which has heretofore been widely used.
Furthermore, the two step construction helps to some extent in providing a free passageway for the Vacuuminduced movement of air from a location adjacent the bur21, thence into the drilling head 17 and back through the sheath 12 and hose 13 t the aspirating machinery.
With particular reference to FIGURE 3, it can be seen that .the drilling head 17 comprises a generally cylindrical body 22, or housing, suitably attached, as by welding 23, to the knee 16. A downwardly facing annular shoulder 26 on the housing receives in face-to-face engagement an annular flange 27 extending laterally from a drum '28.
The drum 2% is fastened to the housing by screwing downwardly a cap 30 having interior threads 31 whose peaks, or teeth, are bobbed, as at 32. The cap threads 31 engage with exterior threads 33 formed on the upper portion of the drum 28. The exterior thread teeth are also bobbed, as at34.
The efiect of the mutual bobbing of the thread teeth is to define a helical passageway 36 beginning at a lower V-shaped helical recess 37 in the drum and extending helically upwardly to a chamber 38 defined by the cap 30 and the upper end of the drum. Discharging into a port 39 formed in the drill head body is an oil mist carried by a tubing 41 extending through the sheath 12, and the hose 13 and ultimately terminating at a conventional small-capacity lubricator (not shown). Such lubricators are of well-known design and their operation is to insert a metered quantity of lubricating oil into an air line under a predetermined air pressure. The quantity of oil is so small as to involve only a thin film or mist type of lubrication.
As an alternative, not shown, a conventional oil reservoir, from which oil is drawn through a tube to the head by reason of the vacuum within the head, can be used.
. The oil and air mixture moves in the paths generally indicated by the arrows 43, the flow being helically upwardly to the chamber 38, thence downwardly through an upper anti-friction bearing 46 held by a snap retainer 47, and through a lower anti-friction bearing 48, the oil mist serving to lubricate the bearings.
Rotatably mounted in the inner races of the bearings is a member termed a chuck and generally designated by the numeral 51. The chuck 51 not only includes a hollow spindle 52, or sleeve, but also a hub 53' coaxially mounted on the lower end of the spindle and provided with a plurality of blades 54.
The envelope of the blades substantially spans or extends over the entire circular opening 56 at the bottom end of the housing 22. Consequently, when a vacuum is impressed on the hollow interior 57 of the knee 16 and thus on the substantially hollow interior 58 of the drilling head, air fiow occurs in the general pattern indicated by the arrows 59, the movement of the air, in impinging on the blades, effecting a very high rotational velocity of the chuck 51 of the order of 350,000 r.p.m.
Frictionally disposed within the sleeve 52, or spindle, is illustrated a form of bur holder 51 adapted frictionally to receive and hold the shank of any of the conventional bur. instruments. The particular kind of holder shown forms no part of the instant invention and a number of other forms are equally suitable, reference being had, for example, to certain of my copending applications relating to bur holders.
A slinger ring 62 is preferably mounted on the outside of the spindle immediately below the lower bearing 48. While the flow of the oil mist 43 as it leaves the lower bearing is ordinarily adequate to prevent the entry into the bearings of debris entrained in the air stream 59, the slinger 62 completes the effectiveness, and by a. localized fan or pumping action causes the air stream 59 and entrapped detrital particles to veer away from the bearing race.
It is deemed advisable, for protective purposes, to add a screen 66, or grill, to cover the circular opening 56 below the blades, an opening 67 in the center of the screen permitting a downward extension 68 of the bur chuck. Conveniently, an interiorly threaded base cap 69 engagea'ble with corresponding threads adjacent the bottom of the housing is used to clamp the grill in place.
It can therefore be seen that not only is the chuck caused to rotate by air movement induced by the interior vacuum, but the air flow in itself serves to aspirate or draw air away from the area below and in the vicinity of the drill opening. The aspirating influence reaches, or extends, or makes itself felt for a surprising distance from the drilling head, and clearly so adjacent the area in which the bur is working. Consequently, cutting debris, moisture and all the other unwanted material adjacent the excavation are immediately swept away, and the same force which effects this desirable result also serves to effect rotation of the cutting instrument itself.
Reference is' now had to the preferred form of device shown in FIGURES 4-7. In this form, a hollow sheath 72 is connected at one end to a vacuum source. (not shown), such as a high volume dental aspi-rator. The other'end of the sheath is exteriorly tapered; and its interior walls extend inwardly from the opening 73 to form .a cylindrical chamber 74 defined by walls 75, the axis the knee 77 can be rotated so that the head is inclined,
within limits, to any desired degree of angularity with respect to the sheath, the limits being defined by the respective axes of the knee and the sheath. The dentist is thereby given a freedom or flexibility of angularity not possible with the handpieces and contra-angles heretofore utilized. The relatively tight fit between the walls 75 of the sheath opening and-the shank of the knee, and the interior vacuum which obtains, both serve to prevent separation between the two elements.
The knee 77 extends forwardly and has suitably mounted thereon, as by a weldment 78, a hollow drilling head 79' which, for aerodynamic reasons, is somewhat barrel-like in shape.
Formed on the bottom wallportion of the knee 77 is a pair of symmetrically located apertures 81, or bleeder valve ports, increasing in size as they recede from the drilling head. Adapted selectively to cover and uncover these ports is a valve collar 82 closely encircling the underlying walls of the knee. A knurled portion 83 formed on the collar enables the dentist to slide the collar forwardly and backwardly over the ports 81 either to fully cover or to fully expose them, or to effect any desired intermediate degree of opening. When the ports are fully covered, the vacuum within the drilling head is at its maximum; when the ports are fully exposed, the vacuum within the drilling head is substantially destroyed since atmospheric air bleeds inwardly through the ports. Intermediate degrees of vacuum within the drilling head are achieved by partial uncovering. If desired, the ports 81 can be formed so that the extent or amount of their opening, as uncovering proceeds, is to a logarithmic or exponential scale so that, for example, a movement of the collar through two-thirds of its translational range from fully closed to fully open position will effect a corresponding decrease in vacuum in the head, namely, by approximately two-thirds of its maximum.
The barrel-shaped drilling head *79, as can be seen most clearly in FIGURE 6-, is provided adjacent its upper end with an interiorly threaded portion 86 adapted to engage with the exterior threads 87 on the enlarged head 88 of a drum 8 9, the lower margin or periphery of the drum being tapered as at 9 1.
An annular recess 92 is formed in the top of the enlarged drum head 88. Confined within the recess 92, with a vertical freedom of movement of about 0.001 inch, by a cap 93 threaded on the threads 87 is a transverse annular flange 94. From the flange 94 depends an elongated vertical sleeve 96 having its bottom margin 97 tapered in sloping alignment with the drum margin 91.
The outer races of an upper anti-friction bearing 98 and a lower anti-friction bearing 99 are mounted within the sleeve 96. Mounted, in turn, within the inner races of the bearings is a rotatable member termed generally a chuck and designated by the numeral 101.
The chuck 101 includes a vertical spindle portion 102 whose axis of rotation .103 is substantially coincident with the axis of the drilling head. The spindle 102 is hollow and serves to receive the shank of the conventional bur. At its lower end, the spindle is enlarged to form what is termed a jaw section 106, or bushing, the jaw section being split into a plurality of segments by slits 107, the jaw being heat-treated to provide a resilient frictional clamping effect on the encompassed portion of a burs shank.
Immediately above the jaw 106 is a plurality of blades 111 extending radially from a hub 112 formed on the spindle. The blade envelope substantially spans the downwardly facing circular opening 113 at the bottom of the drilling head. Thus, as the vacuum within the knee chamber 116 and the head chamber 117 makes its influence felt to the atmosphere outside the head opening 113, air flow through the opening occurs. This air movement causes the blades 111 to revolve. Preferably, the blades are fabricated with predetermined airfoil sections for greatest efficiency.
As the blades revolve, so rotates the spindle, carrying with it a slinger 1241, the slinger including a transverse annular plate 122 mounted on the spindle and extending outwardly past the lower bearing 99, and upturned adjacent its periphery to form a conical plate 123 covering and extending to the outer margin of the tapered portion 91 of the drum 89. This construction assures a very substantial protection to the bearings 98 and 99 as well as to the sleeve 96, and is aerodynamically very satisfactory in guiding the incoming air with a minimum of turbulence.
Aerodynamic considerations are also involved in proportioning the volume within the head chamber 117 with respect to the cross-section of the knee chamber 116 so as to assure optimum air flow efliciency. The barrel shape of the head helps to provide a suflicient cross-section within the head chamber 117 to avoid constriction of air flow as the air departs from the blades and moves toward the knee chamber 116, thence through the sheath 72 to the vacuum source.
While the elements of the chuck 101 can be designed to achieve a certain degree of flywheel or inertia effect, it has been found that an additional element, termed an inertia member 131, is of considerable help. The inertia member 131 takes the form of a disc or sleeve interposed between the upper and lower bearings, the disc being mounted on the spindle 182 as by an interference fit. The member should have a high specific gravity, should be relatively hard and should be inert. Gold, alloyed to increase its hardness, has been found to serve in an admirable fashion as the material to be used.
Covering the opening 113 at the bottom of the drill head is a protective gn'llwork 133, an opening in the center of the grill serving to permit the projection therethrough of the chuck jaw portion 106, or bushing.
As can be :seen most clearly in FIGURES 4 and 7, a conventional bur 136 is retained by and extends downwardly from the chuck bushing. Cooperating closely with the rotational motion of the bur 136 and being favorably acted upon by the air movement upwardly in the vicinity of the bur is a stream of water, indicated by the arrow 137, issuing as a jet from a nozzle 138. The water is delivered by a small diameter water tube 141 mounted on the bottom surface of the knee and extending into the interior of the knee where it connects with a water supply tubing 142 communicating with any suitable water source. It is apparent that air or an air-water spray could also be utilized.
The nozzle 138 extends partially across the diameter of the head opening 113 and is directed so that the stream is parallel to the axis of bur rotation and flows very close to the bur shank.
Owing to this parallelism and the slight conical divergence of the stream, the stream of water impinges against the bur, as appears most clearly in FIGURE 7. Assisted by the rotation of the bur and the flow of the air in the vicinity, the stream of water flows downwardly and covers all sides of the bur, and into the area 151 of the tooth 152 being excavated. Then, upon entraining or entrapping the debris at the bottom of the excavation 153, the powerful air flow induced by the aspirator picks up or sucks up, in effect, the water, and the attendant debris, and impels them upwardly through the head opening 113 and onwardly to the aspirator itself. Replacing the water and debris removed by the air flow is clean water emitted 'by the nozzle 138, the stream flow being substantially continuous, thus resulting in a continuous cleansing action.
It can be seen, in other words, that not only is the bur-paralleling jet of water highly eflective in placing the water accurately in a location where it does the most good, but the aspirating influence in the same vicinity serves most eifectively to keep the area free of debris and under constant unobstructed observation by the dentist.
While in both of the described forms the vacuum induced by an aspirator has also served to rotate the chuck, it is to be clearly recognized that, if desired, the chuck can also be rotated by a belt, water, gear, or even a pressurized air drive, or by an electrical drive, using high frequency current, for example, without substantially interfering with the principle of aspiratin-g through the drilling head itself. However, the utilization of an aspiratorinduced air current as the bur-rotating force and as the force continuously removing moisture and debris from the oral cavity and from an excavation represents a preferred combination of extraordinary simplicity, utility and compactness. Lastly, the utilization of a vacuum rather than a compressed air system provides a much cleaner and more hygienic and sanitary environment in the area being worked on, there being no contamination by lubricating oil or by reason of compressor operation.
What is claimed is:
l. A dental drill comprising: an elongated hollow sheath adapted to be connected at one end with a vacuum hose, said sheath having at the other end a circular opening and adjacent said opening a hollow cylindrical portion defined by inwardly extending cylindrical interior walls; a hollow elongated knee having at one end right circular cylindrical walls adapted to fit snugly through said circular opening at said other end of said sheath and to engage in face to face relation with said cylindrical interior walls of said sheath; a collar slidably mounted on said knee and adapted to move selectively between a first position wherein an aperture in said knee is fully covered by said collar and a second position wherein said aperture isf ully exposed; a hollow drilling head mounted on the other end of said knee; means on said drilling head for directing the movement of air induced by a vacuum in said hose from the atmosphere outside said drilling head to a location within said drilling head; and a drill-holding chuck rotatably mounted within said drilling head, said chuck including air-flow responsive means for rotating said chuck, said air-flow-responsive means being located within the path of air movement determined by said airdirecting means.
2. A vacuum powered dental drill comprising: an elongated hollow conduit connected at one end to a vacuum source; a hollow substantially cylindrical drilling head mounted on the other end of said conduit, said head including a housing having an opening at one end thereof; a chuck rotatably mounted on said housing and coaxially therewith, said chuck extending through said opening in said end of said housing; a plurality of blades mounted on said chuck adapted to be revolved by the Vacuuminduced movement of air through said opening and into said head; a grillwork extending over said opening in said end of said drilling head; and a fluid ejecting nozzle mounted on said head, said nozzle being directed away from said head.
3. A vacuum powered dental drill comprising: an elongated hollow conduit connected at one end to a vacuum source; a hollow substantially cylindrical drilling head mounted on the other end of said conduit, said head including a housing having an opening at one end thereof; a chuck rotatably mounted on said housing and coaxially therewith, said chuck extending through said opening in said end of said housing; a plurality of blades mounted on said chuck adapted to be revolved by the vacuuminduced movement of air through said opening and into said head; a grillwork extending over said opening in said end of said drilling head; an inertia member on said chuck, said member including a symmetrically configured structure of heavy, relatively inert material encompassing said chuck; and a fluid ejecting nozzle mounted on said head, said nozzle being directed away from said head. 4. A vacuum powered dental drill comprising: an elongated 'hollow conduit connected at one end to a vacuum source; a hollow substantially cylindrical drilling head mounted on the other end of said conduit, said head including a housing having an opening at one end thereof; a chuck rotatably mounted on said housing and coaxially therewith, said chuck extending through said opening in said end of said housing; said chuck being adapted to rotate within a pair of spaced anti-friction hearings on said head, said bearings being lubricated by lubricating means including an oil-air mist carried from a lubricator to said bearings through a tubing disposed within said hollow conduit and directed into said drilling head; a plurality of blades mounted on said chuck adapted to be revolved by the vacuum-induced movement of air through said opening and into said head; a grillwork extending over said opening in said end of said drilling head; an inertia member on said chuck, said member including a symmetrically configured structure of heavy, relatively inert material encompassing said chuck; and a fluid ejecting nozzle mounted on said head, said nozzle being directed away from said head.
5.- An aspirating dental drill comprising: a. A hollow, substantially cylindrical drilling head having a first opening located at one end of said head and a second opening located on one side of head;
[9. a dental bur chuck coaxially mounted for rotation Within said drilling head, said chuck extending toward said first opening;
0. a plurality of air-fiow-responsive blades mounted on said chuck, said blades being disposed substantially in the plane of said first opening;
d. means for inducing a vacuum adjacent said second opening whereby atmospheric air outside said head and adjacent said first opening is caused to flow through said first opening and to rotate said airflowfresponsive blades and said chuck;
e. a conduit having one end connected with said second opening and the other end connected with said vacuum-inducing means, said conduit having formed therein a third opening adjacent said drilling head, said third opening being in close juxtaposition to said first opening; and,
f; means for selectively covering and uncovering said third opening.
6. An aspirating dental drill comprising: a hollow substantially cylindrical drilling head having a circular opening at one end; a dental bur chuck coaxially mounted for rotation within said head and extending toward said opening; a plurality of blades mounted on said chuck adjacent the end of said chuck adjacent said opening, said blades forming, during rotation, a circular envelope substantially spanning said opening; means for inducing a vacuum within said head; and a grillwork substantially covering said opening whereby air flow created by said vacuum inducing means moves through said grillwork and impinges on said blades.
7. The device of claim 6 further characterized by a drum coaxially mounted in said head and surrounding said chuck; a pair of anti-friction bearings mounted within said drum and supporting said chuck; and a slinger member on said chuck spaced slightly from and substantially covering the outer race of the one of said pair of bearings proximate to said blades.
8. The. device of claim 7 further characterized by a [relatively inert and heavy inertia member mounted symmetrically 'on said chuck for rotation therewith.
References Cited in the file of this patent UNITED STATES PATENTS 983,988 Foster etal. Feb. 15, 1911 2,703,904 De Long Mar. 15, 1955 2,866,267 Fletcher et a1 Dec. 30; 1958 FOREIGN PATENTS 612,807 France Aug. 9, 1926


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Brummel hooks are commonly used in sailing. Finsterwalder’s SPEED SYSTEM HOOKS are manufactured according to the same principle and have been developed especially for paragliding. They serve as a connection between the speed system that is attached to the harness and the glider and are hence also called speed system hooks. Nearly all paraglider manufacturers use Finstewalder’s SPEED SYSTEM HOOKS.
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ZMG’s new excavator buckets line
Buckets for mini excavators from the ZMG1 series are intended for machines with a tonnage of 1-2 T. Excavator buckets are made of hard or abrasion-resistant construction material with increased durability. Excavator buckets are equipped with screwed or welded teeth, depending on the purpose and type of spoon. The products are made to the highest quality standards and have a one-year warranty. ZMG1 buckets have a modern design, modular structure, and new functionalities. The weight and dimensions of the buckets are adapted to the tonnage of the machine. Buckets can be made for pins or a quick coupler on the machine. The buckets can be equipped with bolted or welded teeth.
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January 19, 2022
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Ultrasonic rotary vibrating screen is a derivative product of rotary vibrating screen. It combines the ultrasonic controller with vibrating screen. Compared with the ordinary vibrating screen, the adsorption, density and friction of the Ultrasonic rotary vibrating sifter is better than the ordinary one. It is widely used in alloy powder, Chinese medicine powder and any other material. But at the same time, it will also has some problems when cleaning the ultrasonic rotary screen, so how to rinse it to recover its cleanliness is the topic we’re going to talk about now. Here are some tips for you to refer to.
1.You should use high viscosity cleanser when cleaning ultrasonic rotary shaking separator, the higher viscosity of the liquid, the higher of gas content inside. Then the cleaning effect would be better.
2.The dosage of cleanser should be moderate. But in the cases that there is very much stain in the sieve you need to smear more cleanser on it to obtain a better cleaning effect.


Something happened before this issue started from the sounds of page 4.
Please confirm that all was good before that large curb.
On my 97 SSEi, recently I was getting a lean bank continually and trying to determine what was happening. The car can dump fuel in an effort to correct a lean condition. A fuel pump, strainer and filter later...my car seems to be back up to par.
Have you checked the fuel pressure?
Last time the fuel filter was changed?
Considered that the curb might have dislodged something with the fuel system/pump?
Admittedly I haven't read the entire thread. My thoughts would be to put it up in the air and look over the tank, fuel lines and anything in the path.
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- Electronic casings
- Industrial sensors
- Electric components
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$0.00 - $41.00
Davantronic is a leading manufacturer of custom-made electronic casings in aluminum. With over 10 years of experience in the industry, we have established a reputation for producing high-quality and durable products that meet the unique needs of our clients.
Our manufacturing process begins with a consultation to understand the specific requirements of each project. Our team of experienced engineers will work closely with you to design and develop a casing that meets your exact specifications.
Once the design is finalized, we use state-of-the-art technology and equipment to precision-manufacture the casing. Our advanced CNC machines ensure that each part is produced to the highest standards of quality and accuracy.
One of the key advantages of using aluminum for electronic casings is its lightweight yet strong properties. Aluminum is not only durable and long-lasting but also has excellent thermal conductivity, making it an ideal choice for electronic devices that generate heat.
Our aluminum casings are also highly customizable, with a wide range of finishes and colors available to suit your branding and aesthetic needs. We can add logos, text, and other graphics to the casing, making it a perfect representation of your brand.
In addition to manufacturing custom-made electronic casings, we also offer a range of services to support our clients throughout the entire product development process. This includes prototyping, assembly, testing, and even packaging and logistics.
At Davantronic, we are committed to providing our clients with the highest level of service and support. Our team of experts is dedicated to delivering the best possible results, ensuring that your electronic devices are protected and perform at their best.
If you're looking for a reliable and experienced manufacturer of custom-made electronic casings in aluminum, look no further than Davantronic. Contact us today to learn more about how we can help you.
Semi rugged 19" rack module 1U made of aluminum
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An easy-to-maintain high-pressure spray system conjoint with the biological cleansing medium BIO-CIRCLE L Turbo cleans and degreases workpieces thoroughly. Due to its powered spinning basket and the high spray pressure of 4 bars, BIO-CIRCLE L Turbo has optimal impact on the items to be cleaned. For a fast and precise manual cleaning the flow brush or the nozzle can be used instead of automatic cleaning.
Steady VA2 design with a weight-bearing capacity of 150 kgs
Sturdy stainless steel basket with mechanical spinning, touch button to spin the basket in hibernation for easy loading and unloading and manual cleaning
Protect switch prevents the pump motor from running with the lid open – safe handling is guaranteed
Ergonomic hand spray gun with quick release fastener for cleaning brush and cleaning nozzle, fast drying possible by means of a pneumatic spray gun, e.g. to blow out blind holes
Interior lighting – provides optimum visibility during manual cleaning
Tank with slightly tilted bottom for faster emptying, tank cover with filter elements beneath the basket, with dry running protection
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Revolution Advanced Metals & Materials | Material Supply
Revolution Advanced Metals & Materials is a new company dedicated to revolutionary materials with revolutionary service.
Modern industrial companies need a partner in material supply that can source the right material to the right specification at the right time. We at Revolution Materials recognise and understand that you need prompt service without the excuses. The partners in Revolution Materials have a combined experience in the metals supply industry of more than 30 years. In that time they have worked for some of the major international suppliers in Australia, such as Sandvik, Avesta and Inco Alloys.
Our vast network of contacts around the world, in Europe, Asia and North America, range from full-scale rolling mills through specialist manufacturers to national and local stockists. We regularly receive enquiries for uncommon materials and specifications not stocked in Australia, and through our contacts are able to meet our customers' needs and supply to to specification.
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Former Evergreen helicopters.
In 2015 Bell Helicopter opted to partner with Erickson and signed an agreement giving Erickson full product support responsibility for the Bell 214B and ST helicopters, including spare parts manufacturing, procurement and distribution, technical support, maintenance training and MRO services.
Erickson Certified as Bell 214 Maintenance Center, 17-Nov-15 : NBAA 2015 Erickson can perform aircraft refurbishment and Maintenance, Repair and Overhaul (MRO) of the Bell 214B and the Bell 214ST helicopters at all Erickson locations.
Erickson Assume Product Support of Bell 214, 09-Feb-15 : Erickson assume support responsibility of the Bell 214 B and ST models, including spare parts supply, technical assistance, maintenance training, and maintenance, repair and overhaul services (MRO)
List of Aircraft
|C/N||Mod||Built||ID In this Organisation||In other Org|
|28117||214ST||1983|| N393AL: Erickson from 2013|| - N3176G: to JA9609 |
- JA9609: Japan, to VH-LHT
- VH-LHT: Australia, to N214EV
- N214EV: to N393AL
N393AL: Air logistics, noted Oct06
- N393AL: Sentry Aircraft Leasing 3 Llc at Salt Lake City, UT fro+
N393AL: Evergreen; 2012 Afghanistan


Robot cells facilitate automation
The automation of production does not necessarily require the purchase of expensive special machines: Digitized modular robot cells enable cost-effective entry.25 Oct 2018 Kai Tubbesing
With the Advanced Robotic Workstation , the automation specialists from Essert in Baden-Wuerttemberg, present a flexible basis for developing a digitized production line. The base stations can be equipped with lightweight robots featuring different grippers, safety components and feed systems as well as cameras for machine vision and are suitable for numerous applications. According to Essert, the system should offer an attractive and cost-effective solution, even for the production of small quantities. Integrated safety solutions also allow usage as cobots in interaction with human employees.
For the individual system components, Essert relies on standardized software modules that apparently ensure quick and smooth commissioning. Setting up does not require any additional programming knowledge and is done via the graphical user interface of a tablet PC. Special IIoT tools and cloud connectivity subsequently provide the user with data on machine status, ongoing production and possible malfunctions.
Flexible robot cells are also already being deployed elsewhere. Solutions developed by HBI Robotics are used, for example, to load and unload special machines, and they also control the automated insertion of tools into machine tools.
Interested in news about exhibitors, top offers and trends in the industry?
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Group: Atlas Copco Tools
150 Nm | STwrench
Atlas Copco Applications Industrielles
Critical fastening duties are among the most essential tightening operations within industry today. So whether you’re in the business of assembling cars or trucks, tractors or harvesters, trains or planes, you need to be in control when it comes to production and quality assurance.
The Atlas Copco STwrench is much more than a standard transducerized hand held nutrunner. Due to its modular design, you can build the STwrench to meet your exact requirements and create a tool that perfectly matches your applications. Use the STwrench for production to get full traceability for the entire tightening operation, including torque control, angle control and yield control. Configure your wrench to just tighten your joint with high torque accuracy. Or use it for quality control to check residual torque, to perform joint analysis, including joint behavior and stiffness, to set the correct tightening parameters for production and to test the reproducibility of joint stiffness on the benches.


Is it too simple to suggest that instruction is needed to wind a mechanical clock? Perhaps!
However, in this age of everything electronic it may surprise some people that a new-to-them mechanical clock they just purchased at the local garage sale or antique store needs to be wound on a regular basis. Winding a mechanical clock takes some care and things can go horribly wrong if it is done incorrectly.
A chime is a musical tone and a typical musical tone found on most clocks with 3 winding points is the Westminster chime
Let’s look at some terms.
Winding arbors or winding points; one, two or three, what does each one do?
Look at your clock dial and you will see one, two or three holes. The number of winding arbors correspond to the number of gear trains (or sets of gears). If there is one hole it is a time-only clock; if there are 2 holes it means that it is a time and strike clock, that is, it strikes the appropriate hour on the hour and either a bell or strike on the half hour (there are always exceptions like this two train Westminster Chime clock). Clocks with three winding arbors chime and strike the hour and chime on the quarter hour. In a clock with three arbours, generally the centre arbour winds the time train.
People often confuse a strike and a chime. A strike is simply a strike. A chime is a musical tone and a typical musical tone found on most clocks with three winding points is the Westminster chime.
On this spring-driven Seth Thomas (photo) the left arbor (arrow) winds the strike side and the right arbor (arrow) winds the time side. On the Ingraham clock (next photo) there is only one set or train of gears for a time-only clock, hence the single arbor.
Most clocks are deigned to run eight days. Some older clocks run 30 hours and others run as long as 30 days on a wind. For eight day clocks winding it every 7 days prevents it from stopping. It is a good practice to wind your clock on a specific day each week. My typical winding day is Saturday.
Quite often your acquired clock has no key and if there is, it is generally a replacement key. Indeed, it is rare to find a clock with it’s original key. The key that comes with the clock will fit. One clue that the key is not original is the type of key. If your clock has a speed adjustment arbor on the clock face (F-S) usually located on the top part of the dial face, you will have a double-ended key. If your clock came with a one-ended winding key (winding arbor only) when there are is a top adjustment arbor, it is not original to the clock. Two ends are required because the speed adjustment winding arbor is significantly smaller that the winding key arbour.
Key size and type
Generally speaking clocks require winding keys like this one (photo below). Keys come in various sizes and it is important to have the correct size key for your clock’s arbour. If your clock came without a key it can be purchased at any clock supply house such as Perrin in Canada.
Over-winding a clock is a common myth. A clock which “appears” to be over-wound seizes because of a buildup of old oil and dirt in the mainspring coil
If the dial is covered by a glass door, open it to access the face. Insert the key into one of the winding arbors and with your non-dominant hand, steady the case while you wind the clock. I like to wear cotton gloves when I wind my clocks in order to preserve the finish.
Next, turn the key clockwise. If it will not turn clockwise, turn counterclockwise. Yes, some clocks wind clockwise and some counterclockwise. In any event do not force the key; wind it with minimal force and wind the arbor until it winds no further.
Here is a prime example of a past owner who used excessive force to wind the movement and in the case of the right spring barrel – the wrong direction. As you can see the right spring barrel is unhooked from the main wheel and that can only occur when attempting to wind the spring in the opposite direction. You can also see that both winding arbors are “chewed up” by what looks like a pair of pliers; a definite no-no. If you lose the key buy a new one!
Over-winding a clock is a common myth. A clock which “appears” to be over-wound seizes because of a buildup of old oil and dirt in the mainspring coil which causes the coil to stick which is why servicing a clock is an important part of ownership. The “clicking” sound you hear when winding the arbor is the click engaging the ratchet on the mainspring. The purpose of the ratchet is to lock the mainspring in place during each turn of the key.
When winding it is important to allow the key to gently rest back onto its click. On those rare occasions when the click might slip or break you must resist the urge to let it go. Allow the key to slowly unwind in your hand, otherwise damage can potentially occur to the teeth and gears if the spring unwinds freely. And yes, if you let it go it potentially means a major repair!
Of course, not all clocks have springs. The weights on weight-driven clocks must be raised to the top. This is accomplished by either a crank placed in the winding arbor on the clock face or pulling chains to raise the weights. Slowly pull down on the chains until the weights reach the underside of the wooden board at the top of a weight stop bar. Again, I wear cotton gloves to steady the weights while they are being pulled up.
There you have it. Enjoy your mechanical clock and remember to wind it regularly.
There is nothing like the melodious rhythm of an antique clock in a quiet room.


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Concrete Grinding.Once we remove your old flooring, the concrete beneath may be rough and uneven, with various residues on it. Concrete or substrate grinding is a necessary step to create a perfectly smooth surface. Grinding removes all imperfections and inconsistencies in the concrete. It will remove paint, glue, epoxies, and any other stubborn remnants.
What is Concrete Grinding ACore.Aug 04, 2021 Concrete Grinding. Concrete grinding is a means of preserving pavement by removing surface irregularities and imperfections. This sometimes includes concrete leveling to make the surface more durable, or the use of a concrete grinder to smooth a rough surface. Roads absorb a lot of wear and tear over the years.
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Concrete Grinding and Surface Prep in Cleveland OH.Concrete grinding is gentle on the floor, unlike other methods, where both the floor and the old covering are scraped away. Following scarifying and shot blasting, the floor is always uneven and requires a lot of extra new covering in order to fill in the irregularities in the floor.
Best 30 Concrete Grinding in Yucaipa CA with Reviews.We found 158 results for Concrete Grinding in or near Yucaipa, CA. They also appear in other related business categories including General Contractors, Building Contractors, and Masonry Contractors. The businesses listed also serve surrounding cities and neighborhoods including San Bernardino CA, Yucaipa CA, and Redlands CA.
Concrete Floor Grinding Shaving amp Milling Ohio Concrete.Concrete grinding is often used to fix the following Uneven joints creating possible trip hazard. Spalled areas and deteriorating surfaces. Old paint, coatings, adhesives, and mastics that need removed. Uneven floor level making tile and flooring difficult or impossible to install. Poor concrete installation. Surface is too rough for bare feet.
Concrete Contractors Jacksonville FL Concrete Experts Jax.Concrete Grinding. Not all of the concrete companies in Jacksonville Florida offer quality concrete grinding- but we do You can be certain that we will remove all of the imperfections from the concrete, resulting in a smooth surface. If you have an old concrete surface that is now rough or uneven, then grinding can restore it.
Concrete Grinding.Metro Defits are the industry leaders when it comes to the provision of commercial and domestic concrete grinding services in the city of Melbourne. Get a Free Concrete Grinding Quote Online. Get a Free Quote Online. ... Let us remove any old adhesives for you. Concrete Removal. Get a professional to remove your concrete driveway, footpaths ...
Pro Concrete Polishing Perth Concrete Grinding Specialists.Rejuvenation Polish This service brings an old concrete floor back to life by giving it a new polish and fresh seal. This gives an old floor a second lease on looking great. ... please give us. call We take on all types of concrete services like grinding and sealing, epoxy finishes, and renewal. Give us a
Grinding amp Concrete Floor Polishing Melbourne Concrete.ABOUT. Concrete Grinding amp Concrete Polishing Melbourne. With over 20 years experience, Concrete Grinding Solutions offer stylish, unique and durable concrete polished floors in your home, office or retail space. Simon has over 18 years experience in the Melbourne concrete polishing and concrete grinding industry, starting out in 2002.
Concrete Grinding Melbourne Nazcrete Concrete.We also offer floor removal services to remove old floor coverings like old tiles, timber or vinyl prior to grinding the concrete. Damaged concrete surfaces can also be restored to their former glory and used for years to come. Once the grinding has been completed and the smooth surface is left, any flooring option can be installed with ease.
Concrete Grinding get a quote Nazcrete.All our concrete grinding is completed with a powerful Husqvarna Hyperfloor grinding machine. Its diamond grinding surface allows us to work the rough concrete surface exactly how we want to and reveal a smooth and often perfectly flat finish.
Concrete Grinding Can Revive That Old Unsightly Slab.Combine some concrete filler into the gaps and pass over the patched areas with the same concrete grinding equipment to create a smooth, seamless surface. If you really want to bring the full effects of concrete grinding to fruition, you can complement the results of grinding with staining, painting andor sealing of the newly restored surface.
Concrete Grinding Central Florida LRE Ground Services.Concrete grinding is a quick and easy way to remove old stains or minor uneven surfaces. Grinding it down can give your concrete that brand-new look without a complete replacement. Depending on your concretes condition, the depth of grinding will vary. Most
5 Things I Learned When Grinding Concrete for the First Time.Aug 21, 2017 Concrete grinding is actually a lot easier than I thought it was going to be. Obviously, this depends so much on what you are trying to do and the circumstances, but the basic operation of the machines was easier than expected. I definitely had some issues that if avoided, would have help the job go faster and the results would have been better
How to Grind Concrete With Angle Grinder The Grinder.May 22, 2020 The correct angle while grinding concrete can be identified from the place you rent the angle grinder or from the instruction manual. Always remember that you should not use the prep tool to remove thin coatings and for removing paint that is old. There is a separate removal tool that is available with Diamabrush for these purposes.
How to Grind 1 Inch of Concrete In 3 Steps Effectively.Mar 14, 2021 Characteristically, concrete is a robust and strong substance. Due to these characteristics, concrete is widely used in making garage, basement, or subfloors. The method of concrete grinding is typically used to take out 1 high or less stub toes.
Midwest Pavement Grinders.Diamond Grinding Diamond grinding is a concrete pavement restoration CPR technique that provides a smooth riding surface with the desirable friction characteristics on concrete pavements that have developed excessive roughness. Diamond grinding offers numerous advantages over other rehabilitation alternatives, including the following Costs substantially less than an overlay. Enhances ...
Grinding Wheels for Concrete and Masonry Available from.The floor is concrete, and the walls are plaster-the diamond studded grinding wheel easily removed all the old quick-set adhesive and smoothed the plaster and concrete
Grinding amp Floor Preparation Your Concrete Experts.This process uses concrete grinding machines to remove old or unwanted concrete or coatings. This is done using either hand-held or massive 4-head planetary grinders. Manawatu Concrete Polishing grind all types of concrete floors preparing for tiles, vinyls, drive ways, large floor areas, outdoor areas, patios amp
Concrete Polishing Adelaide Concrete Grinding floor.Vertical concrete such as walls If you are starting with new concrete or wanting to turn an old ugly concrete floor into something striking, using a polishing service is always an environmentally friendly, cost effective, and healthy option. Its a leading flooring
How to Use a Concrete Grinder to Remove Old Basement.Nov 28, 2010 A concrete grinder is used to remove old basement floor sealant to prepare the surface for tiling, resealing, or simply polishing. The machine can also remove old paint, rough concrete surfaces, and a stained concrete surface. Step 1 - Preparation. Rent, borrow or buy a concrete
HOME Empire Concrete Grinding amp Polishing Bensville NSW.Empire Concrete Grinding and Polishing is a professional company lead by Shane Butler. We use the latest technologies and techniques to ensure your floors and walls have the ultimate modern, artistic look. We focus on quality in all projects so your concrete will stand the test of time.
Concrete Grinding Sydney Polishing Honing.Concrete polishing is a new way to add character to floors in homes, workplaces, and retail stores. Polished concrete is the contemporary style you need.. Its become a go to for many designers and homeowners because of its style, function, versatility, and ease of maintenance.
What is concrete grinding and why is it important.Nov 23, 2017 Advantages of grinding concrete. Restore concrete surfaces Grinding concrete removes all imperfections and inconsistencies in the concrete, resulting in a smooth and usable surface. Old and damaged concrete surfaces can be restored to their former glory and used for years and years to come. Remove paint, epoxies, dirt Grinding removes paint ...
6 Ways to Grind a Concrete Floor.Jul 02, 2020 A grinder is a must-have tool in the concrete grinding process. Concrete grinders have various applications and use cases, including cleaning, grinding, and polishing concrete floors. The grinders employ horizontal discs that revolve to polish off rough surfaces and smooth rough edges.
Concrete Grind and Seal Mastercut Concrete Cutting.Concrete Grind and Seal. A concrete grind and seal will remove paint, glue, epoxy and old tile grout from a concrete surface providing a smooth and clean surface. We then add a high gloss or matt sealant to make a tired old concrete floor become a feature of your home or workplace. Previous. Next.
Concrete Grinding Co Home Page.Concrete Grinding Co. is a Melbourne based company, specialised in concrete floor polishing, floor-grinding, concrete levelling and resurfacing. We are also capable of concrete floor paint amp glue removal, as well as paint, epoxy and polyurethane paintingcoating application. We operate Melbourne wide and not only provide a high-quality ...
Why Does Dry Grinding Not Work for Concrete Countertop.Dry grindingpolishing tends to burnish the concrete surface, making it too smooth for good sealer adhesion. This applies to any coating sealer, not just Omega and Ovation. The practice of dry sanding concrete using dry sandpaper is often seen as being simple, fast, easy, and gentle to the concrete.
What is concrete grinding How to do it.May 22, 2021 Benefits of Concrete Grinding. Actually, in precast concrete projects, grinding is a must. For the flooring, you can restore concrete surfaces by removing imperfections and inconsistencies by grinding. The old damaged concrete surfaces, paint, or epoxies can be removed, which would make it perfect to receive an alternative flooring option.
9 Best Diamond Concrete Grinding Cup Wheels Newdiamondtools.Concrete grinding cup wheels are a kind of metal bond sintered diamond grinding tool, which is used for rough grinding of cement and terrazzo floor. With fast grinding speed and high efficiency, the concrete grinding cup wheel is usually used on hand-held grinders or walk-behind floor grinders to grind or polish green concrete floor or ...
Grinding Abrasive Wheels at.Norton. Bluefire Bonded Abrasive 7-in Grinding Wheel. Model 50549-038. Find My Store. for pricing and availability. 13. Norton. Redheat Ceramic 5-in 60-Grit Flap Disc. Model 50576-038.
How to grind concrete floors The Handyman Central.May 01, 2020 Old concrete will be a bit of a Pandoras box, not knowing what will be revealed by grinding the concrete. You may not be able to get a polished finish on old concrete, but the blemishes and other issues will add character to the finished job. Concrete grinders can be used either wet or dry depending on the results desired.
Concrete Grinding How Much Will A Concrete Grinder.Concrete grinding is a mechanical treatment process of the surface using special equipment, like Husqvarna or HTC, combined with abrasive diamond tools. The metal segment attachments procure the removal of unevenness on rough concrete surfaces to reveal a smooth finish. There are grinding diamond tools to help make the process faster.
What is concrete grinding How to do it.May 22, 2021 Actually, in precast concrete projects, grinding is a must. For the flooring, you can restore concrete surfaces by removing imperfections and inconsistencies by grinding. The old damaged concrete surfaces, paint, or epoxies can be removed, which would make it perfect to receive an alternative flooring option.


Polycarbonate Sheet Multi-Wall Waved Sheet Rolling Sheet Plain Sheet
|FOB Price:||US $2.8-4.5 / kg|
|Min. Order:||1 kg|
|Min. Order||FOB Price|
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|Payment Terms:||L/C, T/T, Western Union, Paypal, Money Gram|
- corrugated sheet
- 3 Products
- Product Image
- Product Name
- FOB Price
- Model NO.: BGW2
- Kind: Transparent Plastic Sheet
- Contraction Percentage: 0.4%~1.4%
- Color: Clear, White, Blue, Green, Smoke, Bronze, Ice, etc
- Thickness: 2mm
- OEM: Yes (Customized Maksing Film)
- Delivery Time: Within 15 Days
- Samples: Free Samples Can Be Provided for Evaluation
- Origin: China
- Material: PC
- Water Absorption: 0.1%~0.3%
- Tensile Strength: （81~130）MPa
- Lenght: 30 Meters
- Light Transmission: 85%
- Weigth: 0.65kg/Sqm
- Width: Max 1220mm
- UV: 50 Micor Meter, 10 Year Warranty
- HS Code: 39206100
Polyvalley Multi-wall waved sheet
Developed by Polyvalley, the waved sheet is a new polycarbonate sheet with advantages as high light transmit, easy-shaped, heat isolation, high load impact etc. The waved sheet have very small bending radius, thus can be rolling packed. It is very suitable for skylight, carport, greenhouse and so on.
Very small bending radius, can be rolling packed, suitable for transportation.
Small Expansion and Contraction, it can be made as longer as required.
High light transmission: can be over 85%, very suitable for greenhouse.
Very high impact resistance: With waved structure, its load and strength is as 2 or 3 times high as normal flat sheet.
Good weatheability: with UV layer on the surface, the waved sheet can keep its high light transmission for many years without yellowing.
Easy and lower cost installation: the two sheets can be connected directly with its waved structure. Not only easy and lower cost for installation but also water-proofed
Modular Width: 1220mm
Effective Width: 1220mm
Length: no limited (rolling packed)
Color: Clear, blue, green, opal (can be any as required)
Polyvalley company overview:


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What are the reasons for "maintenance" diesel generators not catching fire?
：发动机油路不顺畅、气缸压缩异常、润滑油太粘稠、油泵内有没有空气、燃油用尽、供油管路堵塞或漏气、油品质量达不到要求、停车阀(或燃油电磁阀）未工作、执行器未工作或调速拉杆开度过低、调速板无输出信号至执行器、转速传感器无反馈信号、进气管堵塞、排气管堵塞；其他故障。 The causes of the diesel generator not catching fire include : the engine oil circuit is not smooth, the cylinder compression is abnormal, the lubricating oil is too viscous, there is no air in the oil pump, the fuel is exhausted, the fuel supply pipeline is blocked or leaking, Not meeting requirements, stop valve (or fuel solenoid) is not working, actuator is not working, or speed control lever opening is too low, no output signal from speed governor to actuator, no feedback signal from speed sensor, blocked intake pipe, exhaust Tube blocked; other failure. The details are as follows:
Analysis of the causes of diesel generators not catching fire
1. The engine oil circuit is not smooth. Check whether the oil circuit of the engine is clear. If you hear a squeaking sound from the fuel injection nozzle, it proves that there is no problem with the oil circuit.
2. Cylinder compression. Check the compression of the cylinder. If you release the decompression device and you can still rotate the flywheel, there is a problem with the compression of the cylinder. You need to replace the cylinder piston and piston ring.
3. Lubricant. The lubricating oil should be replaced in time. Too viscous lubricating oil is not conducive to the smooth start of the engine.
4. Oil pump. See if there is air in the oil pump. If there is air in the oil pump, the diesel engine will not catch fire.
5. Fuel exhaustion: refill the fuel tank with a sufficient amount of clean fuel.
6. The fuel supply pipeline is blocked or leaking: Fill the fuel filter with fuel, remove the air in the fuel supply pipeline, and ensure that all cut-off valves in the fuel supply pipeline are in the open position;
7. The stop valve (or fuel solenoid valve) is not working: check the power supply wire of the stop valve (or fuel solenoid valve) to ensure its connection is firm and reliable. Check the working status of the stop valve (or fuel solenoid valve) to ensure normal operation. After power supply, the parking valve (or fuel solenoid valve) can work normally;
8. The actuator is not working: check the power supply line of the actuator to ensure that it is firmly and reliably connected, check the implementation work status, and confirm that it can work normally after obtaining normal working power;
9. The opening speed of the speed control rod is too low: Check the speed control rod to ensure that the open position is not less than the effective position of the actuator.
10. No output signal from the speed governor to the actuator: During the startup process, measure whether the power supply of the speed governor is normal, and measure the voltage signal output from the speed governor to the actuator.
11. There is no feedback signal from the speed sensor: measure whether the feedback signal from the speed sensor is normal, check whether the line connection between the speed sensor and the governor is firm and reliable; remove the speed sensor to check whether the sensor head is damaged; measure the resistance of the sensor; check the speed Whether the installation of the sensor meets the requirements.
12, blocked intake pipe, exhaust pipe: check the engine's intake pipe to ensure that the engine intake air flow; check the engine's exhaust pipe to ensure that the engine exhaust flow.
The above is an introduction to "What causes a diesel generator to fail to catch fire?" For more exciting content, please pay attention to this site!
50KW Shangchai generator set
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1971 AMC Gremlin X 4.2L 258 6-cylinder from North America
Unique transportation with power!
Blown head gasket 150k.
Clutch replaced at 120,000.
Upper ball joints replaced.
Door hinges & pins replaced, plus regular maintenance.
Powerful old car, drives very boxy, poor braking with factory drum brakes all around.
Comfortable and roomy in the front seats, they don't recline, but an excellent heater!
Would you buy another car from this manufacturer? Don't Know
Review Date: 28th January, 2009


The 4 PIPES MODEL 4 filler is ideal for bottling wine, oil, beer, spirits, fruit juices and other liquid products.
The liquid is aspirated by the vacuum created by the machine inside the bottles as soon as they are inserted, the filling is carried out continuously, as it does not require the assistance of a pump, the contact of the liquid with mechanical parts is avoided.
The filling level of the bottles is adjustable and, once selected, automatic.
The collection container or tank can be placed up to 4 meters below the machine.
Several accessories also allow to implement the use of the equipment (see accessories for 4B filler).
- Model: 4 B for wine.
- No. of pipes: 4.
- Production: 600 bot / hour.
- Power: 120 W
- Weight: 25 kg
- Bottle neck diameter: 16 to 28 mm.
- Bottle height: 250 to 330 mm.
Data sheet / video demo


CIMNE together with RMIT is offering a PhD position (see attached flyer) focused on metal Additive Manufacturing.
The selected candidate will have the opportunity to work both at CIMNE (computational mechanics) and at RMIT-Australia (AM labs).
Two supervisors are proposed, one for each center: I (Prof. Michele Chiumenti) will supervise the R+D work at CIMNE focusing on the software framework we are developing for metal AM process simulation. Prof. Andrey Molotnikov will supervise the experimental work carried out in Melbourne at the AM labs.
We think that this is a great research opportunity and a fantastic experience in Barcelona and Melbourne too.
We would be grateful if you can spread this call among possible interested candidates in your institution helping us with the diffusion.


Designed to be light-weight and exquisite, to ensure a high safety performance.
The electric soldering iron has an optimized design. You can use
it, as long as you have a power point near by. The handle uses the
latest strongly heat-proofed materials. Designed to be light-weight and
exquisite, to ensure a high safety performance.
How to use: 1. Before using the electric soldering iron, check for the voltage
2. The electric soldering iron should kept dry. Prevent using it during dampness or after rain.
3. During the first time use of the electric soldering iron,
because the electro thermal component has been heated, it may appear
slightly smoky. This is a normal appearance, after some time it will
4. Prevent filing the nozzle.
5. Prevent changing the spare part when the soldering iron is powered on.
Specification: 30 W
Power supply: 220 V 50Hz


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One of the issue that with software test automation is the inability to interact with the physical world.
This means of you want to automate the test scripts of a POS software the most important business critical test scenarios are not getting executed since it demands interaction between different types of payment cards and card reader.
So we decided to make a robotic arm that can be controlled from Calabash in order to achieve 100% automation as a proof of concept.
Few days back we completed the Phase 1 of this robotic arm.
And it did meet our goals set for Phase 1 successfully.


cultivator, water pump, generator, welder, rammer, concrete compactor,
Place of Origin:
CE, GS, EPA, CARB, SONCAP
After-sales Service Provided:
Overseas third-party support available
Transistorized magneto ignition
Fuel consumption (g/Kw.h):
less than 374
less than 70dB
2 years or 2000 hours
5000 Piece/Pieces per Week
Packaging & Delivery
5-layer sea-worthy corrugated carton with foam for long distance land and see shipment
Container laoding qty
20GP: 275 sets
40GP: 575 sets
40HQ: 575 sets
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- Peterson Manufacturing438Chrome-plated steel light snaps into 1-1/4 inch diameter hole, overall diameter is 1-1/2 inch Commonly used to illuminate license plate on step bumpers Two units required for legal license illumination 438 series is sealed with single 6 inch lead wire
- Peterson Manufacturing
|Dimensions||1.2 x 1.7 x 1.2 inches|Write a Review
Peterson Manufacturing 438 Chrome License Plate Utility Light
This item is unavailable right now.Telling you that an item is out of stock is basically the last thing we wanted to do. We're sorry.


EKWB In Pictures
If there's one company in the enthusiast computer hardware space that we all love, but nobody really knows much about, it's EKWB. The company, which is celebrating its 10th anniversary soon, has never had a media visitor to its headquarters.
Recently, EKWB moved into new offices. Of course, when I heard this, I just had to ask if Tom's Hardware could take a look. After a couple months of figuring stuff out, I boarded a flight to Slovenia and paid EKWB a visit.
The company's primary focus is on water blocks, but it also sells the other parts you need to build a water-cooled system, including reservoirs, fittings, tubing and pumps. Some components are made by EKWB, others are resold or re-branded.
Meet EKWB Owner And Founder
Edvard König is the man behind EKWB. That's also where the company gets its name: Edvard König Water Blocks. EKWB started as a garage effort when König realized that he wanted to water-cool his PC. At the time, he worked in a shop and had access to a milling machine, allowing him to build his first water block. Enthusiasm on the Slovenian forums was huge, and in 2003 König started mass production of one design, selling 100 units. In 2005, König went to business workshops and participated in a business plan competition. He won, and in 2006 he launched EK Water Blocks.
Within six months, he had resellers on every continent. The days were long, but growth was strong, and slowly König started taking on employees and building a team. Today, König primarily plays a strategic role in the company, having handed most control to the CEO, Mark Tanko. The company employs about 45 people at its headquarters.
EKWB's Design Process
One of the block designers is Rok Dolinar, an R&D engineer at EKWB. As Dolinar explained the design process to me, he was working on a model for a water block compatible with three of Asus' Maximus VIII motherboards, which later came to be known as the EK-FB Asus M8G Monoblock.
Mapping The Hardware
The first step in building a water block is designing it. There are multiple ways to go about this, but for most blocks, the process starts with digitally mapping out the hardware.
This particular block would cover the CPU as well as the VRM circuitry around the socket. Therefore, the entire CPU socket area is mapped out, as well as the space around it.
Split It Up!
Following the creation of the motherboard in virtual space, Dolinar went on to build the water block's base. He opted for a split base, with the area over the CPU separate from what covers the VRM circuitry.
The space over the CPU is the easiest to design; it's just a copy of the EK-Supremacy EVO's based, EKWB's flagship CPU water block. Conversely, the part covering the VRM circuitry has to be designed by hand.
Over the bases goes a metal plate, followed by the top of the block.
Oops, Didn't See That
Once a block has been designed, it goes off to manufacturing and comes back in pieces as a prototype. The designer can then test-fit the hardware to make sure it works as intended. Of course, that's not always the case.
After Dolinar made some "non-retail" adjustments to the prototype, he added them to the block design, sent the update back to production and tried again.
Contrary to what you might expect, EKWB doesn't actually manufacture any of its water blocks in-house. Instead, it partners with various manufacturers that own CNC (computer numerical control) milling machines. EKWB pays them to build the blocks.
The reason for this split is to keep the company flexible. Admittedly, EKWB could achieve higher margins if it brought manufacturing in-house. But outsourcing allows more agility, making it easier to absorb changes in the market.
When a milling company receives a block design, an engineer must specify how the CNC machine should build the block. For a prototype, this step isn't very time consuming, but for final designs, the engineer has to ensure that each block spends as little time as possible inside the machine. An engineer told us this can take a full day of simulation.
We captured one such simulation for your viewing pleasure. You can watch a video showing the simulation of milling a GPU block here.
The three objects you see are not different blocks. Rather, because the milling machine can only cut from one angle, a worker has to move the block around when switching from front to back, to cutting the micro-channel structure.
The CNC Milling Machine
Water blocks may be small, but the CNC milling machine is actually quite large. Much of what it does is automated, including switching tools. However, the people operating the machines do need certain qualifications.
This Is What You See
In person, it's hard to see what the milling machine is doing as a result of the fluid being sprayed everywhere. Regardless, we did get a couple of pictures at the factory.
The machine works with various sets of drills, which it uses to cut parts out of the copper block by following the path set by the engineer. Each has a different shape and can be used for different purposes. Naturally, the milling machines can make all sorts of objects.


At gaugestools, you can find the best and high quality tools. We are fast and reasonably priced. We are committed to provide 100% customer satisfaction.
Gaugestools is a best supplier and manufacturer of thread gauges. We can provide thread ring gages for external thread and thread plug gages for internal thread. Our ring gages are solid, clients can use them directly, no need setting plug gages. The thread plug gages are taperlock, double ends with one handle.
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We're One of the UK's Top Bodykit Suppliers for Japanese Cars
4/4/2010 11:32:10 AM
We are happy to announce this years competition cars.
7/1/2009 9:44:30 AM
EPRacing's Toyota Supra engine Powered Nissan 200sx S14.5 has been Front page featured on Banzai Magazine in the September 2008 issue. Big thanks to Steve Usher and the lads for all the Hard work they have done during the pass few months.