CN104279014A - Novel anti-rotation rolling wheel ascending and descending tappet - Google Patents
Novel anti-rotation rolling wheel ascending and descending tappet Download PDFInfo
- Publication number
- CN104279014A CN104279014A CN201410378281.4A CN201410378281A CN104279014A CN 104279014 A CN104279014 A CN 104279014A CN 201410378281 A CN201410378281 A CN 201410378281A CN 104279014 A CN104279014 A CN 104279014A
- Authority
- CN
- China
- Prior art keywords
- cam
- tappet
- roller
- antiturning fastener
- fastener board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000005096 rolling process Methods 0.000 title abstract description 13
- 230000001174 ascending effect Effects 0.000 title abstract 3
- 230000000694 effects Effects 0.000 claims abstract description 14
- 238000003801 milling Methods 0.000 abstract description 6
- 238000013459 approach Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 210000002583 cell-derived microparticle Anatomy 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000009747 press moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/14—Tappets; Push rods
- F01L1/143—Tappets; Push rods for use with overhead camshafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2303/00—Manufacturing of components used in valve arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2305/00—Valve arrangements comprising rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2307/00—Preventing the rotation of tappets
Abstract
The invention provides a novel anti-rotation rolling wheel ascending and descending tappet, which comprises a tappet rod and a cam periodically acting on the tappet rod, wherein the tappet rod comprises a casing, a pin shaft and a rolling wheel arranged on the pin shaft, the casing is in a hollow cylinder shape, two coaxial pin holes are formed in the casing, the pin shaft is used for installing the rolling wheel on the casing through the pin holes, two mutually symmetrical platforms which are formed through milling are arranged on the outer circle surface arranged at one side, near the cam, of the casing, the platforms extend to the end surface of the casing, the pin holes are formed in the platforms, an anti-rotation clamp plate is arranged on the end surface part of the rolling wheel, in addition, the space between the top surface, near the cam, of the anti-rotation clamp plate and a center line of the pin shaft is greater than the outer diameter of the rolling wheel, and the anti-rotation clamp plate approaches to the cam but is not in contact with the cam. The invention provides the novel anti-rotation rolling wheel ascending and descending tappet with the advantages of simple structure, good anti-rotation effect and low processing cost.
Description
Technical field
The present invention relates to a kind of engine valve tappet, be specifically related to a kind of novel anti-rotation roller lifting tappet.
Background technique
Tappet is the device rotary motion of rotating machinery as cam being converted to linear motion.In the valve mechanism of internal-combustion engine, tappet to arrange immediately below camshaft in situation, contacted with affiliated air-exchanging valves with rocking arm by push rod when cam on camshaft moves further, and time above camshaft is positioned at, in most of the cases be designed to cup-shaped tappet, tappet is directly placed between cam and air-exchanging valves.In pump drive assembly, tappet is directly arranged between the cam of pump live axle and corresponding pump piston too usually.
In addition, in order to minimize friction, usually will on the ectosome of tappet, form bending rolling surface or ectosome is provided with rolling roller, rolling roller to be rotatably supported on ectosome and camshaft or pump live axle cam effect under roll.At this, all the time correctly orienting station is in relative to corresponding cam in order to ensure rolling surface or rolling roller, and correspondingly stop very torsion of bar, tappet is typically provided with anti-torsion element, utilizes anti-torsion element tappet to operate in the cylinder head of adjacent member, such as internal-combustion engine or the guide portion of pump case along stroke axis regularly in circumferential direction.
At present, the anti-rotation device (hereinafter referred to as ARD) that existing roller lifting tappet is installed has two kinds of modes: the first is body exterior surface anti-rotation device being fixed on roller lifting tappet by its colony, as disclosed a kind of anti-rotation tappet of internal combustion engine valve valve timing mechanism in Chinese patent CN200780046644.2, this tappet to be positioned between cam and valve and to be directed in the receiving barrel of cylinder head.Herein, radially outward is given prominence to anti-rotation assembly and is positioned in the groove of skirtboard, this skirtboard slides in the guiding groove of cylinder head, this anti-rotation assembly has two spring arms extended in the circumference of tappet, this spring arm at least regionally adjoins with the inner side surface of skirtboard or the outer side surface of tappet, itself and by clamping force anti-rotation assembly is fixed in the position on tappet, this clamping force radial effect is on described tappet, the second arranges groove in the main body of roller lifting tappet, anti-rotation device is fastened in this groove, as shown in Figure 1, a kind of tappet is proposed at Chinese patent CN201080011583.8, described tappet has housing 2, roller 1 is comprised in the driving side being used as cam hits portion of described housing, the tappet follow-up unit that is used as of housing 1 is positioned on the bottom side of the bridge running through housing valve jacket by the slave end in the portion of putting, wherein, the anti-torsion mechanism 3 exceeding housing casing is distributed in the window of housing, described anti-torsion mechanism 3 is formed by the radial extension of bridge, wherein, on the inner casing cover of tappet, only be made up of punching press-moulding process being distributed with in diametrically opposite portion's section with window, the jut that integral type combines, jut is that wedge shape raises towards the direction of driving side, and wherein, the bridge be made up of steel disc fastens through jut in diametrically opposite portion's section with radial extension with it, and be placed on jut with the fringe region of its bottom side.
Although, above-mentioned two kinds of modes solve the problem that between roller lifting tappet and cam, relative position changes, but, the first means of fixation, because roller lifting tappet is doing reciprocal straight line motion, long-time and cylinder head or pump case the guide portion of anti-rotation device interacts, and being easy to come off affects its use; The second means of fixation, then need the main body machined grooves at roller lifting tappet, and anti-rotation device complex structure, this just causes, and its manufacturing procedure is complicated, cost of production is high, and tappet is in the process doing linear reciprocating motion, anti-rotation device all the time with extraneous rubbing contact, this is just easy to cause anti-rotation device to wear and tear, cause the anti-torsion deleterious of anti-rotation device, be difficult to meet actual demand.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide that a kind of structure is simple, anti-rotation excellent effect and the low novel anti-rotation roller lifting tappet of processing cost.
For achieving the above object, a kind of novel anti-rotation roller lifting tappet of the present invention, comprise tappet, and the cam of period effects on this tappet, described tappet comprises housing, bearing pin and the roller be installed on this bearing pin, described housing is the cylindric of hollow, this housing is provided with two coaxial pin-and-holes, described roller is installed on described housing by this pin-and-hole by described bearing pin, described cam is arranged near roller side, it is characterized in that: the platform being provided with two symmetrical millings at this housing on the periphery of described cam side, described platform extends to the end face of described housing, described pin-and-hole is arranged on the platform, the housing of this roller side is provided with antiturning fastener board, the length of described antiturning fastener board is greater than the external diameter of described roller, and this antiturning fastener board extends to described cam side, the end face of this antiturning fastener board and the end face of described cam close to but do not contact.
On the basis of such scheme preferably, described antiturning fastener board is be installed in the baffle plate on described bearing pin.
On the basis of such scheme preferably, described antiturning fastener board is two, and described cam is fastened between two antiturning fastener boards, and the spacing between antiturning fastener board described in two is greater than the thickness of described cam.
On the basis of such scheme preferably, described antiturning fastener board is installed in by bearing pin the end that described platform deviates from roller side.
On the basis of such scheme preferably, described antiturning fastener board is arrange otic placode on the platform, described otic placode one end is connected with described platform, and its other end extends to described cam side, and the spacing between the peak of this otic placode and the center line of pin-and-hole is greater than the radius of roller.
On the basis of such scheme preferably, described antiturning fastener board is two, is respectively equipped with an otic placode at two described platforms on cam one side end face, and the spacing between two described otic placodes is greater than the thickness of described cam.
On the basis of such scheme preferably, described cam is arranged on a camshaft, described antiturning fastener board is installed on described bearing pin, and the end face of this antiturning fastener board near this cam side is provided with a groove, and the axle journal of this camshaft is fastened in described groove.
The present invention compared with prior art, its beneficial effect is: instant invention overcomes in traditional concept the design deficiency preventing tappet from rotating, by the one or both ends at roller, one antiturning fastener board is set respectively, and make the length of antiturning fastener board be greater than the external diameter of roller, and the end face of the end face of this antiturning fastener board and cam close to but do not contact, thus make when cam cycle act on roller periphery promote tappet do reciprocal straight line motion time, make when tappet produces autobiography in to-and-fro motion, namely when the relative position between roller and cam deflects or misplaces, end-acted due to antiturning fastener board, cam can be applied to rapidly on the end face of antiturning fastener board near the end face of antiturning fastener board, to apply the active force acted on antiturning fastener board, promote the position that tappet rotation to the center line of the center line with cam that make roller parallels, to realize the function that it prevents Tappet Rotation, not only structure is simple for novel anti-rotation roller lifting tappet of the present invention, cheap for manufacturing cost, and relative dislocation between the cam that can effectively prevent tappet autobiography from causing and roller, just face rings its efficiency changing effect, simultaneously, due to antiturning fastener board and cam close to but do not contact, therefore, when cam is in relative tram with roller, during the centerline parallel of the i.e. center line of cam and roller, the end face of antiturning fastener board not with the end contact of cam, thus decrease the friction of tappet movement process, decrease energy consumption, improve the working life of its tappet.
Accompanying drawing explanation
Fig. 1 is the prop column structure schematic diagram that prior art has anti-rotating function;
Fig. 2 is the perspective view of the first specific embodiment of the present invention;
Fig. 3 is the perspective view of the second specific embodiment of the present invention;
Fig. 4 is the side view of the second specific embodiment of the present invention;
Fig. 5 is the plan view of the second specific embodiment of the present invention;
Fig. 6 is the perspective view of the third specific embodiment of the present invention;
Fig. 7 is the side view of the third specific embodiment of the present invention;
Fig. 8 is the plan view of the third specific embodiment of the present invention;
In figure: 10. tappet, 20. cams, 11. housings, 12. bearing pins, 13. rollers, 14. pin-and-holes, 15. platforms, 30. anti-rotations, the end face of 21. cams, 22. axle journals, 31. grooves.
Embodiment
By describe in detail the present invention technology contents, structure characteristics, reached object and effect, hereby exemplify embodiment below and coordinate accompanying drawing to be explained in detail.
Refer to shown in Fig. 1 to Fig. 7, the invention provides a kind of novel anti-rotation roller lifting tappet, comprise tappet 10, the cam 20 of period effects on tappet 10, this tappet 10 comprises housing 11, bearing pin 12 and the roller 13 be installed on bearing pin 12, housing 11 is the cylindric of hollow, this housing 11 is provided with two coaxial pin-and-holes 14, roller 13 is installed in pin-and-hole 14 by bearing pin 12, to realize roller 13 to be installed on housing 11, cam 20 is arranged on roller 13 side, and the center line of this cam 20 parallels with the center line of bearing pin 12, this housing 11 is provided with the platform 15 of two millings near the side periphery of cam 20, platform 15 extends to the end face of housing 11, and two platforms 15 are parallel to each other, pin-and-hole 14 is arranged on this platform 15, antiturning fastener board 30 is established at housing 11 place of this roller 13 side, and the length of this antiturning fastener board 30 is greater than the external diameter of roller 13, antiturning fastener board 30 extends to cam 20 side, and the end face 21 of the end face of antiturning fastener board 30 and cam 20 close to but do not contact.
During work, cam 20 rotation period acts on the periphery of roller 13, promote tappet 10 and do linear reciprocating motion, because housing 11 is the cylindric of hollow, when the pilot hole of tappet 10 in internal-combustion engine or pump case 11, tappet 10 is spacing without circumference, therefore its tappet 10 can produce rotation, the roller 13 on tappet 10 is caused to change with cam 20 relative position, namely the center line of cam 20 and the center line of roller 13 are not parallel to each other, the end face 21 of cam 20 is caused to contact with each other rapidly with the end face of antiturning fastener board 30, thus apply an active force at the end face of antiturning fastener board 30, antiturning fastener board 30 drives tappet 10 to rotate under this active force, to correct the relative position of roller 13 and cam 20, thus realize the function that antiturning fastener board 30 prevents tappet 10 from rotating.In this process, when the centerline parallel of the center line of roller 13 and cam 20, the position of the end face of antiturning fastener board 30 and the end face keeping parallelism of tappet 10, namely do not contact between antiturning fastener board 30 with cam 20, thus the friction that can reduce in movement process, and the center line of roller 13 and the center line of cam 20 not parallel time, then the end face of cam 20 acts on rapidly on the end face of antiturning fastener board 30, realizes its anti-rotating function.
In order to further describe technological scheme of the present invention, shown in Fig. 2, as the first embodiment of the present invention, a kind of novel anti-rotation roller 13 is elevated tappet, comprise tappet 10, the cam 20 of period effects on tappet 10, this tappet 10 comprises housing 11, bearing pin 12 and the roller 13 be installed on bearing pin 12, housing 11 is the cylindric of hollow, the periphery of housing 11 is provided with two milling faces be arranged in parallel, milling face extends to the end face of housing 11, the periphery of this housing 11 forms two platforms be parallel to each other 15, this platform 15 is provided with two coaxial pin-and-holes 14, roller 13 is installed in pin-and-hole 14 by bearing pin 12, cam 20 is arranged on roller 13 side, and the center line of the center line of this cam 20 and roller 13 is parallel to each other, antiturning fastener board 30 is for being installed in a baffle plate on bearing pin 12, and be arranged on the side of roller 13, and the end face of the end face of this baffle plate and cam 20 is parallel to each other, make the end face of baffle plate close with the end face 21 of cam 20 but do not contact, and the total length of this baffle plate is greater than the external diameter of roller 13.When cam 20 rotates, the periphery period effects of its cam 20 is on roller 13, pushing rolling wheels 13 drives tappet 10 to move reciprocatingly on the axial direction along housing 11, the rotary motion of cam 20 is realized to be converted to straight line motion, in the process that housing 11 moves, when housing 11 rotates around the center line of this housing 11, when causing center line opposing cam 20 center line of roller 13 to deflect, cause the end face of cam 20 no longer parallel with the end face of antiturning fastener board 30, and namely the end face 21 of cam 20 acts on rapidly on the end face of antiturning fastener board 30, to antiturning fastener board 30 1 counter force, make tappet 10 do the direction contrary with himself sense of rotation around its center line to rotate, thus correct the relative position of tappet 10 and cam 20, realize the function that it prevents tappet 10 from rotating.
In order to increase its anti-rotation effect, antiturning fastener board 30 of the present invention is two, it is installed on bearing pin 12 respectively, and be arranged on the both sides of roller 13, and the spacing of two antiturning fastener boards 30 between the interior edge face of cam 20 side is greater than the thickness of cam 20, make cam 20 in movement process, all the time be fastened between two antiturning fastener boards 30, rotate once tappet 10, on the interior edge face of two antiturning fastener boards 30 that the end face of cam 20 acts on rapidly, form a torsion force, to correct the relative position of tappet 10, realize the object that it prevents tappet 10 from rotating.Wherein, this antiturning fastener board 30 both can be installed in this platform 15 and also can be installed in the end that this platform 15 deviates from roller 20 side near the end of roller 20 side.
Shown in Fig. 3, as the second mode of execution of the present invention, antiturning fastener board 30 of the present invention can also be arranged on the otic placode on the platform 15 of housing 11, this otic placode is the end plate extended to cam 20 direction by the end face of housing 11 near cam 20 side, and the spacing of the peak of this otic placode near cam 20 side and pin-and-hole 14 center line is greater than the radius of roller 13, wherein, otic placode can be one-body molded with this platform, also can be on the platform of this housing 11, to weld a flat board form.Namely in movement process, because the relative position of cam 20 is constant, and once the anti-raw rotation of tappet 10, when causing roller 13 and cam 20 relative position change, applying one active force exceeds on the end face of roller 13 side at otic placode by the end face of cam 20, realize correcting the position of tappet 10, to prevent tappet 10 from rotating, guarantee the relative position of roller 13 and cam 20.Preferably, antiturning fastener board 30 of the present invention is two, and namely on the end face of cam 20 side, be respectively equipped with an otic placode at two housing 11 platforms 15, cam 20 is arranged between two otic placodes, and the spacing between two otic placodes is greater than the thickness of cam 20.Namely cam 20 is in movement process, all the time be fastened between two antiturning fastener boards 30, rotate once tappet 10, on the interior edge face of two antiturning fastener boards 30 that the end face of cam 20 acts on rapidly, form a torsion force, to correct the relative position of tappet 10, realize the object that it prevents tappet 10 from rotating; And in the center line of cam 20 and the centerline of roller 13 when parallel, the end face of cam 20 does not contact with antiturning fastener board 30.
Further, as preferred version of the present invention, cam 20 of the present invention is arranged on a camshaft, this antiturning fastener board 30 is installed on housing mountain by bearing pin 12, this antiturning fastener board 30 is arranged on the end, side that this shell deck deviates from roller 13, and the end face of antiturning fastener board 30 is provided with a groove 31, the axle journal 22 of this camshaft is fastened in groove 31.Namely interacted by groove 31 axle journal 22 with camshaft, what realize tappet 10 circumferential movement is spacing, causes roller 13 to deflect with the relative position of cam 20 to prevent tappet 10 rotation.
The invention has the advantages that: antiturning fastener board 30 of the present invention is installed on housing 11 by bearing pin 12, compared with the anti-rotation device of traditional tappet 10, it is without the need to milling slotted eye on housing 11, and its manufacturing process is simple and convenient, low production cost; Meanwhile, do in linear reciprocating motion process at tappet 10, antiturning fastener board 30 does not contact with cam 20, decreases friction between the two, thus reduces the energy dissipation in motion transfer process; And due to the effect of antiturning fastener board 30, when tappet 10 rotates, cam 20 can act on rapidly on antiturning fastener board 30, to correct the rotation of tappet 10, realizes the effect that it prevents Tappet Rotation, and anti-rotation is effective.
In sum, be only the preferred embodiment of the present invention, do not limit protection scope of the present invention with this, all equivalence changes done according to the scope of the claims of the present invention and description with modify, be all within scope that patent of the present invention contains.
Claims (7)
1. novel anti-rotation roller lifting tappet, comprise tappet, and the cam of period effects on this tappet, described tappet comprises housing, bearing pin and the roller be installed on this bearing pin, described housing is the cylindric of hollow, this housing is provided with two coaxial pin-and-holes, described roller is installed on described housing by this pin-and-hole by described bearing pin, described cam is arranged near roller side, it is characterized in that: on the periphery of described cam side, be provided with two symmetrical platforms at this housing, described platform extends to the end face of described housing, described pin-and-hole is arranged on the platform, the housing of this roller side is provided with antiturning fastener board, the length of described antiturning fastener board is greater than the external diameter of described roller, and this antiturning fastener board extends to described cam side, the end face of this antiturning fastener board and the end face of described cam close to but do not contact.
2. novel anti-rotation roller lifting tappet as claimed in claim 1, is characterized in that: described antiturning fastener board is be installed in the baffle plate on described bearing pin.
3. novel anti-rotation roller lifting tappet as claimed in claim 2, it is characterized in that: described antiturning fastener board is two, described antiturning fastener board is separately positioned on the both sides of this roller, described cam is fastened between two antiturning fastener boards, and the spacing between antiturning fastener board described in two is greater than the thickness of described cam.
4. novel anti-rotation roller lifting tappet as claimed in claim 2, is characterized in that: described antiturning fastener board is installed in the end that described platform deviates from roller side.
5. novel anti-rotation roller lifting tappet as claimed in claim 1, it is characterized in that: described antiturning fastener board is arrange otic placode on the platform, described otic placode one end is connected with described platform, its the other end extends to described cam side, and the spacing between the peak of this otic placode and the center line of pin-and-hole is greater than the radius of roller.
6. novel anti-rotation roller lifting tappet as claimed in claim 6, it is characterized in that: described antiturning fastener board is two, on cam one side end face, be respectively equipped with an otic placode at two described platforms, and the spacing between two described otic placodes is greater than the thickness of described cam.
7. novel anti-rotation roller lifting tappet as claimed in claim 1, it is characterized in that: described cam is arranged on a camshaft, described antiturning fastener board is installed on described bearing pin, and the end face of this antiturning fastener board near this cam side is provided with a groove, the axle journal of this camshaft is fastened in described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378281.4A CN104279014B (en) | 2014-08-04 | 2014-08-04 | New anti-rotation roller lifts tappet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378281.4A CN104279014B (en) | 2014-08-04 | 2014-08-04 | New anti-rotation roller lifts tappet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104279014A true CN104279014A (en) | 2015-01-14 |
| CN104279014B CN104279014B (en) | 2018-04-27 |
Family
ID=52254297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410378281.4A Active CN104279014B (en) | 2014-08-04 | 2014-08-04 | New anti-rotation roller lifts tappet |
Country Status (1)
| Country | Link |
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| CN (1) | CN104279014B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863918A (en) * | 2015-02-05 | 2016-08-17 | 斯凯孚公司 | Cam follower and method for manufacturing such a cam follower |
| EP3249220A1 (en) * | 2016-05-25 | 2017-11-29 | Hangzhou XZB Tech Co. Ltd | A high pressure oil pump roller tappet |
| IT201800006423A1 (en) * | 2018-06-18 | 2019-12-18 | PUMPING GROUP TO FEED FUEL, PREFERABLY DIESEL, TO AN INTERNAL COMBUSTION ENGINE |
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| US4152953A (en) * | 1977-12-15 | 1979-05-08 | General Motors Corporation | Roller cam follower with anti-rotation device |
| US4693214A (en) * | 1985-07-02 | 1987-09-15 | Fiat Auto S.P.A. | Tappet system for internal combustion engines having shafts with variable-profile cams |
| US20060016406A1 (en) * | 2004-07-24 | 2006-01-26 | Ina-Schaeffler Kg | Periodically actuable tappet for a valve train or a pump drive |
| US20090031977A1 (en) * | 2007-08-01 | 2009-02-05 | Schaeffler Kg | Low profile valve lifter assembly |
| CN102348894A (en) * | 2009-03-13 | 2012-02-08 | 谢夫勒科技有限两合公司 | Tappet |
| CN103696821A (en) * | 2013-12-30 | 2014-04-02 | 绵阳富临精工机械股份有限公司 | Engine valve dual-lift rocker arm |
| CN203670067U (en) * | 2013-12-09 | 2014-06-25 | 绵阳富临精工机械股份有限公司 | Engine fuel pump roller tappet |
| CN204113368U (en) * | 2014-08-04 | 2015-01-21 | 武汉东方骏驰精密制造有限公司 | Novel anti-rotation roller lifting tappet |
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2014
- 2014-08-04 CN CN201410378281.4A patent/CN104279014B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4152953A (en) * | 1977-12-15 | 1979-05-08 | General Motors Corporation | Roller cam follower with anti-rotation device |
| US4693214A (en) * | 1985-07-02 | 1987-09-15 | Fiat Auto S.P.A. | Tappet system for internal combustion engines having shafts with variable-profile cams |
| US20060016406A1 (en) * | 2004-07-24 | 2006-01-26 | Ina-Schaeffler Kg | Periodically actuable tappet for a valve train or a pump drive |
| US20090031977A1 (en) * | 2007-08-01 | 2009-02-05 | Schaeffler Kg | Low profile valve lifter assembly |
| CN102348894A (en) * | 2009-03-13 | 2012-02-08 | 谢夫勒科技有限两合公司 | Tappet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863918A (en) * | 2015-02-05 | 2016-08-17 | 斯凯孚公司 | Cam follower and method for manufacturing such a cam follower |
| CN105863918B (en) * | 2015-02-05 | 2020-09-11 | 斯凯孚公司 | Cam follower and method of manufacturing cam follower |
| EP3249220A1 (en) * | 2016-05-25 | 2017-11-29 | Hangzhou XZB Tech Co. Ltd | A high pressure oil pump roller tappet |
| IT201800006423A1 (en) * | 2018-06-18 | 2019-12-18 | PUMPING GROUP TO FEED FUEL, PREFERABLY DIESEL, TO AN INTERNAL COMBUSTION ENGINE |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104279014B (en) | 2018-04-27 |
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