CN104279014B - New anti-rotation roller lifts tappet - Google Patents
New anti-rotation roller lifts tappet Download PDFInfo
- Publication number
- CN104279014B CN104279014B CN201410378281.4A CN201410378281A CN104279014B CN 104279014 B CN104279014 B CN 104279014B CN 201410378281 A CN201410378281 A CN 201410378281A CN 104279014 B CN104279014 B CN 104279014B
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- Prior art keywords
- cam
- tappet
- roller
- housing
- antiturning fastener
- Prior art date
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- 230000000694 effects Effects 0.000 claims abstract description 17
- 238000013459 approach Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 2
- 241001131688 Coracias garrulus Species 0.000 description 60
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 210000002583 cell-derived microparticle Anatomy 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 238000012546 transfer Methods 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
-
- 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
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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
- F01L2307/00—Preventing the rotation of tappets
Abstract
New anti-rotation roller lifts tappet, including tappet, and cam of the period effects on the tappet, the tappet includes housing, axis pin and the roller being installed on the axis pin, the housing is in hollow cylindric, the housing is equipped with two coaxial pin holes, the roller is installed on the housing by the axis pin by the pin hole, the platform that two symmetrical millings form is equipped with side periphery of the housing close to the cam, the platform extends to the end face of the housing, the pin hole is set on the platform, antiturning fastener board is set in the endface of the roller, and the antiturning fastener board close to the cam top surface apart from the center line of the axis pin spacing be more than the roller outside diameter, the antiturning fastener board is approached with the cam but not contacted.The present invention provides a kind of simple in structure, anti-rotation excellent effect and the low new anti-rotation roller of processing cost to lift tappet.
Description
Technical field
The present invention relates to a kind of engine valve tappet, and in particular to a kind of new anti-rotation roller lifting tappet.
Background technology
Tappet is the device that the rotary motion of rotating mechanism such as cam is converted to linear movement.In the valve machine of internal combustion engine
In structure, in the case of tappet is set immediately below camshaft, when the cam on camshaft is further moved by push rod and rocking arm with
Affiliated air-exchanging valves contact, and when camshaft is above, cupulate tappet is in most cases designed into, tappet
It is placed directly between cam and air-exchanging valves.In pump drive assembly, tappet is similarly generally directly arranged in pump drive shaft
Cam and corresponding pump piston between.
In addition, in order to minimize friction, usually curved rolling surface will be formed on the ectosome of tappet or be equipped with ectosome
Roller is rolled, roller is rolled and is rotatably supported on ectosome and is rolled under camshaft or pump drive shaft cam effect
It is dynamic.Here, it is properly oriented to position, and phase in order to ensure rolling surface or rolling roller are in all the time relative to corresponding cam
Ground is answered to prevent the torsion of tappet, tappet is typically provided with anti-torsion element, is fixed in circumferential direction using anti-torsion element tappet
Ground is operated along stroke axis in the guide portion of adjacent member, the cylinder head of such as internal combustion engine or pump case.
At present, the anti-rotation device (hereinafter referred to as ARD) installed on existing roller lifting tappet has two ways：First
Kind is that anti-rotation device is fixed on to the body exterior surface of roller lifting tappet, such as Chinese patent by its colony
A kind of anti-rotation tappet of internal combustion engine valve valve timing mechanism is disclosed in CN200780046644.2, which is positioned in cam
It is directed between valve and in the receiving barrel of cylinder head.Herein, project radially outwardly anti-rotation component and be positioned in the recessed of skirtboard
In groove, which slides in the guide groove of cylinder head, which has two springs upwardly extended in the week of tappet
Arm, the spring arm are at least regionally abutted with the lateral surface of the medial surface of skirtboard or tappet, itself and pass through clamping force will
Anti-rotation component is fixed in the position on tappet, and the clamping force radial effect is on the tappet；Second is lifted in roller
Groove is set in the main body of tappet, anti-rotation device is fastened in the groove, as shown in Figure 1, in Chinese patent
CN201080011583.8 proposes a kind of tappet, and the tappet has housing 2, the drive as cam hits portion of the housing
Include roller 1 in dynamic side, the tappet follow-up unit that is used as of housing 1 is located at the bridge shape through valve jacket in housing by the slave end in the portion of putting
On the bottom side of part, wherein, the antitorque rotation mechanism 3 beyond housing casing is distributed in the window of housing, the antitorque rotation mechanism 3
Formed by the radial extension of bridge, wherein, on the inner casing set of tappet, only the section put is being diametrically opposed to one another with window
On be distributed with made of punching press-moulding process, the protrusion that integral type combines, the direction of protrusion towards driving side is wedge shaped
Rise, and wherein, the bridge being made of steel disc is being diametrically opposed to one another the section put through protrusion with itself and radial extension
Fasten, and be placed in the fringe region of its bottom side on protrusion.
Although above two mode solves the problems, such as that relative position changes between roller lifting tappet and cam,
The first fixed form, since roller lifting tappet is doing reciprocal linear motion, anti-rotation device for a long time with cylinder head or
The guide portion interaction of pump case, it is easy to which coming off influences its use；Second of fixed form, then need to endure in roller lifting
The main body processing groove of column, and anti-rotation device is complicated, this is resulted in, and its manufacturing procedure is complicated, production cost is high, and very
Column is during linear reciprocating motion is done, and all the time with extraneous CONTACT WITH FRICTION, this is just easy to cause anti-rotation device anti-rotation device
Abrasion, causes the anti-torsion effect of anti-rotation device to be deteriorated, it is difficult to meets to be actually needed.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of simple in structure, anti-rotation excellent effect and add
The low new anti-rotation roller lifting tappet of work cost.
To achieve the above object, a kind of new anti-rotation roller lifting tappet of the present invention, including tappet and period effects
Cam on the tappet, the tappet includes housing, axis pin and the roller being installed on the axis pin, during the housing is in
Empty is cylindric, which is equipped with two coaxial pin holes, and the roller is installed in by the axis pin by the pin hole
On the housing, the cam is positioned close to roller side, it is characterised in that：In the housing close to the cam one
The periphery of side is equipped with the platform that two symmetrical millings form, and the platform extends to the end face of the housing,
The pin hole is set on the platform, and antiturning fastener board, the length of the antiturning fastener board are equipped with the housing of the roller side
More than the outside diameter of the roller, and the antiturning fastener board extends to the cam side, the end face of the antiturning fastener board with it is described convex
The end face of wheel approaches but does not contact.
On the basis of such scheme preferably, the antiturning fastener board is the baffle being installed on the axis pin.
On the basis of such scheme preferably, the antiturning fastener board is two, and the cam is fastened on two anti-rotations
Between snap-gauge, and the spacing between the antiturning fastener board described in two is more than the thickness of the cam.
On the basis of such scheme preferably, the antiturning fastener board is installed in the platform by axis pin and deviates from roller one
The endface of side.
On the basis of such scheme preferably, the antiturning fastener board is described to set otic placode on the platform
Otic placode one end is connected with the platform, its other end extends to the cam side, and the peak of the otic placode and pin hole
Spacing between center line is more than the radius of roller.
On the basis of such scheme preferably, the antiturning fastener board is two, in two platforms close to cam one
An otic placode is respectively equipped with side end face, and the spacing between two otic placodes is more than the thickness of the cam.
On the basis of such scheme preferably, the cam is arranged on a camshaft, antiturning fastener board installing
On the axis pin, and the antiturning fastener board is equipped with a groove, the axle journal card of the camshaft close to the end face of the cam side
Close in the groove.
Compared with prior art, the present invention its advantage is：The present invention overcomes prevent tappet from rotating in traditional concept
Design defect, by setting an antiturning fastener board respectively in the one or both ends of roller, and make antiturning fastener board length be more than rolling
The outside diameter of wheel, and the end face of the antiturning fastener board approaches with the end face of cam but does not contact, so that when cam cycle acts on
Roller periphery promotes tappet when doing reciprocal linear motion so that when tappet produces autobiography in reciprocating motion, i.e. roller
When relative position between cam deflects or misplaces, end-acted due to antiturning fastener board, cam is close to antiturning fastener board
End face can be applied on the end face of antiturning fastener board rapidly, act on active force on antiturning fastener board to apply, promote tappet
The position for making the center line of roller parallel with the center line of cam is turned to, to realize that it prevents the function of Tappet Rotation,
The present invention new anti-rotation roller lifting tappet be not only simple in structure, manufacture it is of low cost, and can effectively prevent tappet from
Relative dislocation between caused cam and roller is passed, just face rings its efficiency changing effect；Simultaneously as antiturning fastener board with it is convex
Wheel is close but does not contact, therefore, when cam and roller are in opposite correct position, i.e. the center of the center line of cam and roller
When line is parallel, the end face of the antiturning fastener board not end contact with cam, so as to reduce the friction of tappet motion process, reduces
Energy consumption, improves the service life of its tappet.
Brief description of the drawings
Fig. 1 is the prop column structure schematic diagram that the prior art has anti-rotating function；
Fig. 2 is the dimensional structure diagram of the first specific embodiment of the present invention；
Fig. 3 is the dimensional structure diagram of second of specific embodiment of the present invention；
Fig. 4 is the side view of second of specific embodiment of the present invention；
Fig. 5 is the front view of second of specific embodiment of the present invention；
Fig. 6 is the dimensional structure diagram 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 front view of the third specific embodiment of the present invention；
In figure：10. tappet, 20. cams, 11. housings, 12. axis pins, 13. rollers, 14. pin holes, 15. platforms, 30. anti-rotations,
21. the end face of cam, 22. axle journals, 31. grooves.
Embodiment
For technology contents, construction feature, institute's reached purpose and effect that the present invention will be described in detail, embodiment is hereby enumerated below
And attached drawing is coordinated to be explained in detail.
Please refer to Fig.1 to shown in Fig. 7, the present invention provides a kind of new anti-rotation roller lifting tappet, including tappet 10, week
Phase acts on the cam 20 on tappet 10, which includes housing 11, axis pin 12 and the roller 13 being installed on axis pin 12, shell
Body 11 is equipped with two coaxial pin holes 14, roller 13 is installed in pin by axis pin 12 in hollow cylindric on the housing 11
In hole 14, roller 13 is installed on housing 11 with realizing, cam 20 is arranged on 13 side of roller, and the center of the cam 20
Line is parallel with the center line of axis pin 12, which puts down close to the side periphery of cam 20 equipped with what two millings formed
Platform 15, platform 15 extends to the end face of housing 11, and two platforms 15 are parallel to each other, and pin hole 14 is arranged on the platform 15,
Antiturning fastener board 30 is set at the housing 11 of 13 side of roller, and the length of the antiturning fastener board 30 is more than the outside diameter of roller 13, anti-rotation
Snap-gauge 30 extends to 20 side of cam, and the end face of antiturning fastener board 30 is close with the end face 21 of cam 20 but does not contact.
During work, 20 rotation period of cam is acted on the periphery of roller 13, promotes tappet 10 to do linear reciprocating motion,
Since housing 11 is in hollow cylindric, when tappet 10 is in internal combustion engine or the pilot hole of pump case 11, tappet 10 is without circumferential limit
Position, therefore its tappet 10 can produce rotation, cause the roller 13 on tappet 10 to change with 20 relative position of cam, i.e. cam 20
The center line of center line and roller 13 be not parallel to each other, cause the end face 21 of cam 20 and the rapid phase in end face of antiturning fastener board 30
Mutually contact, so as to apply an active force in the end face of antiturning fastener board 30, antiturning fastener board 30 drives 10 turns of tappet under the active force
It is dynamic, to correct the relative position of roller 13 and cam 20, the function of the rotation of tappet 10 is prevented so as to fulfill antiturning fastener board 30.At this
During, when the centerline parallel of the center line and cam 20 of roller 13, the end face of antiturning fastener board 30 and the end face of tappet 10
It is not in contact between the position of keeping parallelism, i.e. antiturning fastener board 30 and cam 20, so as to reduce the friction in motion process, and
In the center line of roller 13 and the not parallel center line of cam 20, then the end face of cam 20 acts on rapidly antiturning fastener board 30
On end face, its anti-rotating function is realized.
In order to which technical scheme is further described, please continue to refer to shown in Fig. 2, first as the present invention
Kind of embodiment, a kind of new anti-rotation roller 13 lift tappet, including tappet 10, period effects the cam 20 on tappet 10,
The tappet 10 includes housing 11, axis pin 12 and the roller 13 being installed on axis pin 12, and housing 11 is in hollow cylindric, housing 11
Periphery be equipped with two milling faces being arranged in parallel, milling face extends to the end face of housing 11, in the cylindrical of the housing 11
Two platforms 15 being parallel to each other are formed on face, two coaxial pin holes 14 are equipped with the platform 15, roller 13 passes through axis pin
12 are installed in pin hole 14, and cam 20 is arranged on 13 side of roller, and the center line phase of the center line of the cam 20 and roller 13
It is mutually parallel；Antiturning fastener board 30 is a baffle being installed on axis pin 12, and is arranged on the side of roller 13, and the end of the baffle
Face and the end face of cam 20 are parallel to each other so that the end face of baffle is close with the end face 21 of cam 20 but does not contact, and the gear
The total length of plate is more than the outside diameter of roller 13.When cam 20 rotates, the periphery period effects of its cam 20 on roller 13,
Pushing rolling wheels 13 drive tappet 10 to move reciprocatingly on the axis direction along housing 11, realize and turn the rotary motion of cam 20
Linear motion is changed to, during housing 11 moves, when housing 11 rotates around the center line of the housing 11, is led
When causing 20 center line of center line opposing cam of roller 13 to deflect, cause the end face of cam 20 and the end face of antiturning fastener board 30
It is no longer parallel, and the end face 21 of cam 20 is acted on rapidly on the end face of antiturning fastener board 30, is conversely made to antiturning fastener board 30 1
Firmly so that tappet 10 does the direction opposite with its own direction of rotation around its center line and rotates so that correct tappet 10 with
The relative position of cam 20, realizes its function of preventing tappet 10 from rotating.
In order to increase its anti-rotation effect, antiturning fastener board 30 of the invention is two, it is respectively installed on axis pin 12, and is set
Put in the both sides of roller 13, and spacing of two antiturning fastener boards 30 between the inner face of 20 side of cam is more than cam 20
Thickness so that cam 20 during the motion, is fastened between two antiturning fastener boards 30 all the time, once tappet 10 rotates
When, on the inner face for two antiturning fastener boards 30 that the end face of cam 20 acts on rapidly, a torsion force is formed, to correct tappet
10 relative position, realizes its purpose for preventing tappet 10 from rotating.Wherein, which can both be installed in the platform 15
The platform 15 can also be installed in away from the endface of 20 side of roller close to the endface of 20 side of roller.
Please continue to refer to shown in Fig. 3, as second of embodiment of the present invention, antiturning fastener board 30 of the invention can be with
The otic placode being provided on the platform 15 of housing 11, the otic placode be from housing 11 close to the end face of 20 side of cam to 20 side of cam
The end plate formed to extension, and the otic placode is more than roller 13 close to the peak of 20 side of cam and the spacing of 14 center line of pin hole
Radius, wherein, otic placode can be integrally formed with the platform or a tablet is welded on the platform of the housing 11 and
Into.I.e. during the motion, since the relative position of cam 20 is constant, once and tappet 10 is anti-raw rotates, cause roller 13 with
When 20 relative position of cam changes, the end face of cam 20 will apply an active force in otic placode beyond the end face of 13 side of roller
On, the position correction to tappet 10 is realized, to prevent tappet 10 from rotating, it is ensured that the relative position of roller 13 and cam 20.It is preferred that
, antiturning fastener board 30 of the invention is two, i.e., is set respectively on the end face of 20 side of cam in two 11 platforms 15 of housing
There is an otic placode, cam 20 is arranged between two otic placodes, and the spacing between two otic placodes is more than the thickness of cam 20.I.e. cam 20 exists
In motion process, it is fastened on all the time between two antiturning fastener boards 30, when tappet 10 rotates, the end face of cam 20 is rapid
On the inner face of two antiturning fastener boards 30 of effect, a torsion force is formed, to correct the relative position of tappet 10, realizes it
The purpose for preventing tappet 10 from rotating；And in the center line of cam 20 and the centerline of roller 13 when parallel, the end of cam 20
Face is not contacted with antiturning fastener board 30.
Further, the preferred solution as the present invention, cam 20 of the invention are arranged on a camshaft, the anti-rotation card
Plate 30 is installed on housing mountain by axis pin 12, which is arranged on the side end face that the shell deck deviates from roller 13
Place, and the end face of antiturning fastener board 30 is equipped with a groove 31, the axle journal 22 of the camshaft is fastened in groove 31.Pass through groove
31 interact with the axle journal 22 of camshaft, realize to the spacing of 10 circumferential movement of tappet, to prevent 10 rotation of tappet from causing to roll
Wheel 13 and the relative position of cam 20 deflect.
The advantage of the invention is that：The antiturning fastener board 30 of the present invention is installed on housing 11 by axis pin 12, is endured with tradition
The anti-rotation device of bar 10 compares, it is without the milling slot on housing 11, its manufacturing process is simple and convenient, and production cost is low
It is honest and clean；Meanwhile during tappet 10 does linear reciprocating motion, antiturning fastener board 30 is not in contact with cam 20, reduce both it
Between friction so that reduce movement transfer process in energy dissipation；And due to the effect of antiturning fastener board 30, when tappet 10 is sent out
During raw rotation, cam 20 can be acted on rapidly on antiturning fastener board 30, to correct the rotation of tappet 10, realize that it prevents Tappet Rotation
Effect, anti-rotation effect is good.
In conclusion only the preferred embodiments of the invention, does not limit protection scope of the present invention with this, it is all according to the present invention
The equivalent changes and modifications that the scope of the claims and description are made, is all within the scope of patent of the present invention covers.
Claims (3)
1. anti-rotation roller lifts tappet, including tappet and period effects the cam on the tappet, the tappet includes shell
Body, axis pin and the roller being installed on the axis pin, the housing in hollow cylindric, the housing be equipped with two it is coaxial
The roller is installed on the housing by pin hole, the axis pin by the pin hole, and the cam, which is arranged on, to be leaned on
Nearly roller side, it is characterised in that：The housing be equipped with the periphery of the cam side two it is symmetrical flat
Platform, the platform extend to the end face of the housing, and the pin hole is set on the platform, the housing in the roller side
It is equipped with antiturning fastener board, the length of the antiturning fastener board is more than the outside diameter of the roller, and the antiturning fastener board is to the cam
Side extends, and the end face of the antiturning fastener board approaches with the end face of the cam but do not contact；
Wherein, the antiturning fastener board is the baffle being installed on the axis pin；
The antiturning fastener board is two, and the antiturning fastener board is separately positioned on the both sides of the roller, engages the cam
Between two antiturning fastener boards, and the spacing between the antiturning fastener board described in two is more than the thickness of the cam；
The cam is arranged on a camshaft, and the antiturning fastener board is installed on the axis pin, and the antiturning fastener board
A groove is equipped with close to the end face of the cam side, the axle journal of the camshaft is fastened in the groove；
The antiturning fastener board is installed in the endface that the platform deviates from roller side.
2. anti-rotation roller as claimed in claim 1 lifts tappet, it is characterised in that：The antiturning fastener board is is arranged on
The otic placode on platform is stated, described otic placode one end is connected with the platform, its other end extends to the cam side, and should
Spacing between the peak of otic placode and the center line of pin hole is more than the radius of roller.
3. anti-rotation roller as claimed in claim 2 lifts tappet, it is characterised in that：The antiturning fastener board is two,
Two platforms are respectively equipped with an otic placode on one side end face of cam, and the spacing between two otic placodes is more than described
The thickness of cam.
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 CN104279014A (en) | 2015-01-14 |
| CN104279014B true CN104279014B (en) | 2018-04-27 |
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| 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3054116B1 (en) * | 2015-02-05 | 2018-12-26 | Aktiebolaget SKF | Cam follower and method for manufacturing such a cam follower |
| US9863382B2 (en) * | 2016-05-25 | 2018-01-09 | Hangzhou Xzb Tech Co., Ltd | 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004036106A1 (en) * | 2004-07-24 | 2006-03-16 | Ina-Schaeffler Kg | Periodically actuated plunger for a valve or pump drive |
| DE102008035346A1 (en) * | 2007-08-01 | 2009-02-05 | Schaeffler Kg | Low profile valve tappet unit |
-
2014
- 2014-08-04 CN CN201410378281.4A patent/CN104279014B/en active Active
Patent Citations (6)
| 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 |
| CN102348894A (en) * | 2009-03-13 | 2012-02-08 | 谢夫勒科技有限两合公司 | Tappet |
| 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 |
| 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 |
| 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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| CN104279014A (en) | 2015-01-14 |
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