CN101755107B - Switchable tapper for a valve train of an internal combustion engine - Google Patents

Switchable tapper for a valve train of an internal combustion engine Download PDF

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Publication number
CN101755107B
CN101755107B CN2008800245410A CN200880024541A CN101755107B CN 101755107 B CN101755107 B CN 101755107B CN 2008800245410 A CN2008800245410 A CN 2008800245410A CN 200880024541 A CN200880024541 A CN 200880024541A CN 101755107 B CN101755107 B CN 101755107B
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CN
China
Prior art keywords
coupling
hole
piece
housing
bucket tappet
Prior art date
Application number
CN2008800245410A
Other languages
Chinese (zh)
Other versions
CN101755107A (en
Inventor
马里奥·库尔
诺伯特·尼茨
桑德拉·谢弗
露西娅·欣科夫斯卡
安德烈亚斯·屈夫纳
Original Assignee
谢夫勒科技有限两合公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US95110707P priority Critical
Priority to US60/951,107 priority
Application filed by 谢夫勒科技有限两合公司 filed Critical 谢夫勒科技有限两合公司
Priority to PCT/EP2008/058580 priority patent/WO2009024390A1/en
Publication of CN101755107A publication Critical patent/CN101755107A/en
Application granted granted Critical
Publication of CN101755107B publication Critical patent/CN101755107B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005Deactivating valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/14Tappets; Push rods
    • F01L1/143Tappets; Push rods for use with overhead camshafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2307/00Preventing the rotation of tappets

Abstract

The invention relates to a switchable tappet (1) for a valve train of an internal combustion engine, with a housing (3), which has a ring-like cam stop bottom (2) and from the outer edge (4) of which a skirt(5) protrudes and from the inner wall (6) of which a hollow cylindrical shoulder (7) with a borehole (8) protrudes, in which an inner part (9), which can be moved axially relative to housing (3), extends, wherein, in a borehole (11) of the inner part (9), coupling means (12) are applied which, for a complete valve lift, can be brought sectionally into engagement with a dog surface (13) of the housing (3), wherein an inner part (9) is produced essentially as a thin-walled tube section, which is open at both ends and bridged by a transverse bridge (15) with the borehole (11), wherein, as coupling means (12), only a piston, secured against rotating, is provided, which can be located in the coupling direction over at least one compression spring (17) and, in the uncoupling direction, over hydraulic means, which piston, starting out from its face (18) on the coupling side, is provided at the upper side (19) with a sectional flattening (20), over which, in the coupling case, it can be shifted under the driver surface (13), which is constructed as an end side ring face of the shoulder (7).

Description

The switchable bucket tappet that is used for internal combustion valve mechanism

Technical field

The present invention relates to a kind of switchable bucket tappet that is used for internal combustion valve mechanism; Said bucket tappet has the housing with ring cam set startup bottom, and is protruding with liner from the outer rim of said housing, and the inner edge of said housing is protruding with the bump of the hollow cylinder with hole; The inner piece of housing axial motion is distributed in the said hole relatively; The downside of said inner piece itself be used for air-exchanging valves by the portion of putting, wherein in the hole of inner piece, use coupling element, for complete valve lift; Said coupling element can segmented ground chimeric with the servo-actuated face of housing, and the spring tensioning between housing and inner piece of wherein moving about.

Background technique

Such bucket tappet is open by being regarded as DE 44 92 633 C1 that generic constitutes.The coupling mechanism of said bucket tappet is set directly at the below of bottom section.The professional workforce thinks that it is higher that known tappet is counted as unnecessary cost by the production of relative complex ground structure and said tappet.For example the exterior part in bottom section is substantially by structure symmetrically, because below circular bottom part, be processed with the pilot hole of the piston that is used to be coupled.Inner piece is also unnecessary to be to constitute solidly and complicatedly.Because described solid construction, the quilt of the valve mechanism quality of shaking has improved unfriendly.

In addition, learn following solution in advance by old technological scheme, in said solution, next or a plurality of coupling pistons enter into the circular groove distolateral adjacency, loopful shape of each other members in the coupling situation., said circular groove has weakened material on the one hand, on the other hand, has improved cost of production.If desired, also need consider unnecessary, long oil circuit, this can have a negative impact to switching time.

Summary of the invention

Therefore, task of the present invention is to realize the bucket tappet of said type, in said bucket tappet, through using simple device with mentioned shortcoming eliminating.

Said task is solved according to the present invention thus, and wherein, said inner piece is essentially area under control section thin-walled, that open both sides, and this area under control section overlaps through the horizontal fishplate bar with hole.Wherein only be provided with a torsion proof piston as coupling element; This piston can be located through at least one pressure spring and on the decoupling direction, locate through hydraulic medium on the coupling direction; This piston is from the end face of its coupled side; Side is provided with the top of going of segmented above that, and under the coupling situation, piston can go to the top and below the servo-actuated face of the end side annular end face of the bump that constitutes housing, moves through this.

Also can consider and be set in principle,, use according to measure of the present invention in for example roll tappet (Rollenstossen) or the supporting member in other switchable valve mechanism parts.

Thus, said shortcoming is excluded.The present invention relates to a kind of what is called " single piston locking ", this list piston locking can be constructed relatively simply and only needed less member.In addition; Through the coupling piston is set in inner piece; The valve gear member quality of shaking has been lowered, and need not use the annular end face of the end side of original existing bump here in order to the measure of the complicacy of the servo-actuated face of the piston of realizing being used to being coupled in addition.

Particularly preferably be, bucket tappet according to the present invention is constituted as " shutoff tappet ".Therefore housing that need only bucket tappet is provided with corresponding cam at bottom side and starts measure.Said startup bottom on the housing can be protruding spherical on (yet not necessarily) offset direction at cam.

Constituted mode thin-walled basically, pipe type through inner piece can be done further contribution for the quality that reduces bucket tappet.

Possible is, also can consider and be provided with following solution, in this solution, on coupling element, abandons the top of going of said coupling element, and perhaps this goes to the top to have the profile of slight protruding sphere for example or like that.What therefore here also can carry out is that the servo-actuated face on bump also can be configured to for example crown.

Another important component part of the present invention is, piston structure is become two-stage, and the diameter of first vertical section of the coupled side of wherein said piston is less than the diameter away from second vertical section of coupling of said piston.Therefore also possiblely be, annular end face is constituting the pressure side that is used for hydraulic medium on the coupling element between its vertical section, and said hydraulic medium can import in the pressure chamber that has constituted there.

The further embodiment according to the present invention, said pressure chamber should be supplied to through simple intake line, said intake line be used for the quadrature ground, hole of coupling element or obliquely intersection and " smoothly " internally the shell surface of part set out.

Another is according to the further make of purpose according to the present invention, and the hole that is used for coupling element in inner piece constitutes the reach through hole of classification.This is quite favourable for manufacturing process.At this, by putting pressure spring, on second section in hole, be provided with circular thin-wall part at one end as stop element, said pressure spring should be with coupling element in coupling direction superior displacement (no pressure locking) according to the present invention.Said ring part can (on the direction in hole, see to the outside) be supported on guard ring/locking ring of snapping in the hole or like that on.Pressure spring is arranged in the space of the end face that leaves coupling of coupling element at the other end.

In order to guide said pressure spring better, stop element has the annular flange flange of extending in piston direction from its inner rim, so that make said pressure spring at one end around this annular flange flange setting.Advantageously, said element of construction designs as follows, said pressure spring confirm through stop element away from the stop dog position of coupling on not by locking.

The coupled side stop dog position is through providing by putting on the corresponding annular step of the annular end face between vertical section of coupling element in the hole.

Replacedly, the hole that is used for coupling element is simple, unassorted blind hole.Here propose, for form hole first section than minor diameter, independent ring part for example is pressed in the hole.Coupling element passes this ring part extension with first less vertical section of its diameter and coupling element rests on the ring part in the interior edge face side under the situation of coupling.On the decoupling direction, moving through in its substrate that rests on blind hole away from the end face that is coupled of coupling element is defined.

Simple antitorque rotary device as the piston that is used as coupling element proposes a kind of ring part, distributes in the annular groove of this ring part in the shell surface of inner piece.On the height section that goes to the top of coupling element, process circular groove.Therefore in the bore region of opening, going the top above by being equipped with ring part, and this ring part prevents reversing of coupling element with simple form and method.Can consider and be set to as replacement, can use other antitorque commentaries on classics measures that are used for coupling element.For example also can be provided with from the bolt in the hole that is used for coupling element or go to top etc.

Other dependent claims relates to the simple input measure in hydraulic medium to the pressure chamber in inner piece.

Therefore, the sheet metal spare of thin-walled (alternatively, can consider that also composite constitutes thing) distributes in the inside of housing, and this sheet metal spare basically should with the profile phase of housing.Wherein said sheet metal spare has the passage (Kanal) (data feedback channel, bottom side radial groove, axial passage) of moulding from the penetrating part that is used for hydraulic medium liner.Because for circular groove is preferably abandoned in the oil input; Relative its of housing constitutes on every side should be provided with simple antitorque rotary device; And the said relatively housing of inner piece is so in addition, that is, the conveying of " orientation " of the input of hydraulic medium in inner piece is possible.

Alternative, here also can be on the shell surface of liner and on the shell surface of inner piece, or process the circular groove that is used for hydraulic medium accordingly on the hole of the bump of housing, so that can abandon antitorque rotary device.

Especially preferred is that bucket tappet constitutes the so-called tappet of closing.As replacement, bucket tappet also is provided with cam starting bottom (independent or whole) within it in the zone of parts, and this makes lift switch also to become possibility.

Description of drawings

Specify the present invention based on accompanying drawing according to purpose.Wherein:

Fig. 1 illustrates first longitudinal sectional drawing according to bucket tappet of the present invention, and bucket tappet has the hole that in inner piece, constitutes blind hole;

Fig. 2 illustrates the sectional drawing according to Fig. 1, yet this cross section has rotated 90 ° on the basis of Fig. 1, and

Fig. 3 illustrates the cross section view similar with Fig. 1, yet has the hole of the continuous formation in the parts within it.

Embodiment

Accompanying drawing discloses the switchable bucket tappet 1 that is used for internal combustion valve mechanism.Said bucket tappet is made up of the housing 3 that the cam with annular starts bottom 2.Be protruding with liner (Hemd) 5 away from the cam direction, through said liner 5, said bucket tappet 1 holds swingingly guiding in the place in that internal-combustion engine is unshowned from the outer rim 4 that starts bottom 2.

The bump 7 of the hollow cylinder bodily form starts the inner edge 6s of bottom 2 from cam.Said bump has hole 8, in hole 8, relative housing 3 is held with its shell surface 38 at the inner piece that axially relatively moves 9 under the situation of decoupling.On the downside 10 of inner piece 9, can lean on the displacement gas valve.

What also can find out is that inner piece 9 is essentially formation part thin-walled and pipe type.Said inner piece has horizontal fishplate bar 15, according to Fig. 1, the hole 11 of the blind hole of constituting is arranged in the machined of this horizontal fishplate bar 15.In addition, effect has a spring 14 that moves about that is not described in detail between member 3 and 9, and this spring 14 that moves about is used for housing 3 returning on its cam profile/keep under the situation of turn-offing.

According to the present invention, use a kind of single piston locking for coupling.In addition, as 12 pistons that are provided with the thickness classification of coupling element.Like what from Fig. 1, learnt, said piston is made up of with second bigger 22 of vertical sections of diameter first less vertical section 21 of diameter.Said coupling element 12 power through pressure spring 17 on the coupling direction can be shifted, and the substrate 37 (Fig. 1) of an end relative opening 11 of said pressure spring 17 is supported.The substrate effect with the relative coupling element 12 of its other end of said pressure spring 17 away from the space 35 on the end face 30 of coupling at coupling element.

In addition, the professional workforce can learn that from Fig. 1 first vertical section 21 of coupling element 12 passes the hole guiding of independent ring part 36, and ring part 12 for example is pressed in the hole 11 on its shell surface.Said ring part 36 forms " annular step " 27 at it away from coupled side, and said annular step is the constituent element of pressure chamber 25, and the annular end face 26 through coupling element 12 limits the pressure chamber away from coupling ground.

Hydraulic medium can be imported into through intake line 41a, and said intake line 41a is as shown in Figure 2 approximately to be switched to hole 11 with 90 °.Therefore pressure through pressure chamber 25 applies and has realized coupling element 12 displacement of (in cam base circle) on the decoupling direction, makes housing 3 relative interior spares 9 carry out the idle stroke motion and relevant air-exchanging valves is kept shut.

As stated, said coupling element 12 above that side 19 have top 20 from end face 18 s of its coupled side.Going on the top 20, the servo-actuated face 13 on the bump 7 of the hollow cylinder of housing 3 engages downwards.Said servo-actuated face 13 constitutes the annular end face of the end side of bump 7.Therefore, can abandon constituting the independent measure of coupling surface into coupling element 12.

In addition, from figure, can draw, said coupling element 12 is provided with the antitorque rotary device of simplification.For this reason, use ring-type element 40, distribute in the circular groove 39 of this ring-type element on the height that goes to top 20, in the shell surface 38 of inner piece 9.

For the input of hydraulic medium, liner 5 with had penetrating part 42 similarly from Fig. 2 learnt in detail.Said penetrating part 42 links to each other with data feedback channel 43 in inside, and said data feedback channel 43 is molded in the said sheet metal spare 41 on the internal valve 44 of liner 5.At bottom side, data feedback channel 43 transits at least one radial groove 45, and wherein said radial groove 45 radially inwardly links to each other with the axial passage 46 of descending guiding.Said axial passage 46 side endways is connected with through hole 48 fluids in hollow cylinder bump 7.Because the antitorque rotary device between housing 3 and inner piece 9 that is not shown specifically (bolt-elongated slot or like that) through hole 48 is in the opposite with intake line 41a all the time.Therefore under the situation of the complicated circular groove of no manufacturing technology, realize the input of relative " directly " of hydraulic medium here, the 42s, penetrating part of this intake line from liner 5 are directed at the intake line 41a in the inner piece 9.

Fig. 3 discloses a kind of substituting structural scheme of the hole 11 in inner piece 9.Said hole here is continuous and also has the first less section 23 of the distolateral diameter of coupling and away from the second bigger section 24 of diameter of coupling.Here; For at one end by putting pressure spring 17; Funnel shaped stop element 29 is mounted in second section 24 in hole 11; Said stop element 29 is on the direction away from the hole, be supported on the guard ring 32 on its outer edge area 31, and said guard ring 32 extends in the circular groove 33 of second section 24.

What it can also be seen that is that annular flange flange 34 is settled around this annular flange flange 34 from the guiding purpose with the one of which end regions to pressure spring 17 segmenteds from the inner edge of stop element 29.

The antitorque rotary device 49 of the schematically illustrated liner that is used for bucket tappet 15 is disclosed in Fig. 3 in addition.

It is emphasized that inner piece 9 be configured to simply pipeline shape and therefore aspect the light structures with reduce the manufacture cost aspect and contributing.

Upward stable by putting in bottom section (cam starts bottom 2) for the said spring 14 that moves about at a plurality of radial grooves 45 (or a radial groove) of sheet metal spare 41, be provided with the simple ring of part by way of compensation.

Reference character

1. bucket tappet

2. cam starts the bottom

3. housing

4. outer rim

5. liner

6. inner edge

7. hollow cylinder bump

8. the hole of bump

9. inner piece

10. downside

11. hole inner piece

12. coupling element

13. servo-actuated face

The spring 14. move about

15. horizontal fishplate bar

16. it is empty

17. pressure spring

18. end face

19. top

20. go to the top

21. first vertical section

22. second vertical section

23. first section in hole

24. second section in hole

25. pressure chamber

26. the annular end face of coupling element

27. the annular step in hole

28. shell surface

29. stop element

30. end face away from coupling

31. outer edge area

32. guard ring/locking ring

33. annular groove

34. annular flange flange

35. space

36. ring part

37. substrate

38. the shell surface of inner piece

39. circular groove

40. ring-type element

41. sheet metal spare

41a. intake line

42. penetrating part

43. data feedback channel

44. the internal valve of liner

45. radial groove

46. axial passage

47. the shell surface of bump

48. through hole

49. antitorque rotary device

50. ring

Claims (16)

1. the switchable bucket tappet (1) that is used for internal combustion valve mechanism; Said bucket tappet has the housing (3) that the cam with annular starts bottom (2); Be protruding with liner (5) from the outer rim (4) of said housing (3); And be protruding with have the hole bump (7) of hollow cylinder of (8) from the inner edge (6) of said housing (3), inner piece (9) that can said relatively housing (3) axial motion is distributed in the said hole (8), the downside of said inner piece (10) itself be used for air-exchanging valves by the portion of putting; Wherein in the hole (11) of said inner piece (9), use coupling element (12); For complete valve lift, said coupling element (12) can segmented ground chimeric with the servo-actuated face (13) of said housing (3), and wherein between said housing (3) and said inner piece (9) tensioning the spring of moving about (14) is arranged; It is characterized in that; Said inner piece (9) is the area under control section that open at two ends, and said area under control section has horizontal fishplate bar (15), and the hole (11) of said inner piece (9) is formed in the said horizontal fishplate bar (15); Wherein only be provided with a piston as coupling element (12); This piston is torsion proof and can locatees and on the decoupling direction, locate through hydraulic medium through at least one pressure spring (17) on the direction in coupling, and (18)s were gone to top (20) what the upside (19) of said piston was provided with segmented to said piston, under the coupling situation from the end face of the coupled side of this piston; Said piston can move below said servo-actuated face (13) through the said top of going, and this servo-actuated face is constituted as the end side annular end face of the said bump (7) of said housing (3).
2. bucket tappet according to claim 1; It is characterized in that; Said piston is formed by the less first vertical section (21) of the diameter of coupled side comparatively speaking with away from second bigger vertical section (22) of the diameter of coupled side as coupling element (12); Said first vertical section (21) is distributed in less first section (23) of the diameter in hole (11) of said inner piece (9); Said second vertical section (22) is distributed in bigger second section (24) of the diameter in hole (11) of said inner piece (9); Wherein hydraulic medium can be imported into the pressure chamber (25) in the hole (11) of said inner piece (9); The annular end face (26) that said pressure chamber (25) is formed on the said first and second vertical sections (21,22) that connect said coupling element (12) in the axial direction with opposed, between the annular step (27) between said first and second sections (23,24) in the hole (11) of said inner piece (9), and said pressure chamber (25) passes through less first section (23) formation of diameter in hole (11) of shell surface (28) and the said inner piece (9) of first less vertical section (21) of said diameter diametrically.
3. bucket tappet according to claim 2 is characterized in that, rests on through the said annular end face (26) with said coupling element (12) on the annular step (27) in hole (11) of said inner piece (9), confirms the coupling position of said coupling element (12).
4. bucket tappet according to claim 2 is characterized in that, the hole (11) that is used for the said inner piece (9) of said coupling element (12) is implemented as have first and second sections reach through hole of (23,24) at said horizontal fishplate bar (15).
5. bucket tappet according to claim 4; It is characterized in that; In bigger second section (24) of the diameter in the hole (11) of said inner piece (9); Ring part as stop element (29) is fixed by the portion of putting as an end that is used for pressure spring (17), the end face away from coupled side of the said vis-a-vis coupling element of the other end of said pressure spring (17) (12) (30) effect.
6. bucket tappet according to claim 5 is characterized in that, rests on the said stop element (29) through the said end face away from coupled side (30) with said coupling element (12), confirms the decoupling position of said coupling element (12).
7. bucket tappet according to claim 5; It is characterized in that; Said ring part rests on guard ring or the locking ring (32) with its outer edge area away from coupled side (31) as stop element (29), and said guard ring or locking ring distribute in the circular groove (33) with larger-diameter said second section (24) in the hole (11) of said inner piece (9).
8. bucket tappet according to claim 5; It is characterized in that; Said ring part is provided with the annular flange flange (34) from its inner rim as stop element (29); Said annular flange flange (34) distributes on the coupling direction and is surrounded by said pressure spring (17), and the said end face away from coupled side (30) of wherein said coupling element (12) is provided with space (35), and said pressure spring (17) is arranged in said space (35) with the other end.
9. according to right 2 described bucket tappets; It is characterized in that; The hole (11) of the said inner piece (9) in said horizontal fishplate bar (15) is configured to unassorted blind hole; Wherein, for less first section (23) of diameter in the hole (11) that forms said inner piece (9) and independent ring part (36) is fixed in the said hole (11), said coupling element (12) extends through said ring part (36) with first less vertical section (21) of its diameter.
10. bucket tappet according to claim 9; It is characterized in that; The substrate (37) in hole (11) that forms the said inner piece (9) of blind hole is used as the backstop of said pressure spring (17) one ends; Wherein said pressure spring (17) is used for making said coupling element (12) displacement, the other end of wherein said pressure spring (17) to be distributed in the space (35) in the end face away from coupled side (30) of said coupling element (12).
11. bucket tappet according to claim 1; It is characterized in that; In the shell surface (38) of said inner piece (9); On the height section that goes to top (20) of said coupling element (12), be distributed with the circular groove (39) that has ring-type element (40), ring-type element (40) is distributed in going on the top (20) of said coupling element (12) for the torsion proof purpose.
12. bucket tappet according to claim 2; It is characterized in that; Said pressure chamber (25) passes horizontal fishplate bar (15) by direct intake line (41a) and supplies with, said intake line (41a) approximately quadrature ground and said inner piece (9) hole (11) intersection and smoothly from shell surface (38)s of said inner piece (9).
13. bucket tappet according to claim 12; It is characterized in that; Be distributed with sheet metal spare (41) in the inside of said housing (3); Said sheet metal spare (41) is answered with the profile phase of said housing (3), and wherein said liner (5) is provided with the penetrating part (42) that is used for hydraulic medium, and said penetrating part (42) are connected with data feedback channel (43); Said data feedback channel (43) is molded in the said sheet metal spare (41) on the internal valve (44) of said liner (5); Said data feedback channel (43) is connected with one or more bottom side radial grooves (45) in the said sheet metal spare (41), and (45)s can be imported on the shell surface (47) of said bump (7) in the axial passage (46) the said sheet metal spare (41) hydraulic medium, and said bump (7) is provided with through hole (48) on its section away from the bottom from said radial groove; Said axial passage (46) feeds said through hole (48), and said through hole (48) is directly mutually opposed with said intake line (41a) diametrically.
14., it is characterized in that said inner piece (9) is with respect to the antitorque commentaries on classics of said housing (3) according to claim 1 or 13 described bucket tappets.
15., it is characterized in that said bucket tappet (1) is provided with from the antitorque rotary device (49) of its liner (5) protrusion according to claim 1 or 13 described bucket tappets.
16. bucket tappet according to claim 1 is characterized in that, said bucket tappet (1) is for closing tappet, the no cam contact of the inner piece of said bucket tappet (9).
CN2008800245410A 2007-07-20 2008-07-03 Switchable tapper for a valve train of an internal combustion engine CN101755107B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US95110707P true 2007-07-20 2007-07-20
US60/951,107 2007-07-20
PCT/EP2008/058580 WO2009024390A1 (en) 2007-07-20 2008-07-03 Switchable tapper for a valve train of an internal combustion engine

Publications (2)

Publication Number Publication Date
CN101755107A CN101755107A (en) 2010-06-23
CN101755107B true CN101755107B (en) 2012-06-27

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CN2008800245410A CN101755107B (en) 2007-07-20 2008-07-03 Switchable tapper for a valve train of an internal combustion engine

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JP (1) JP2010533819A (en)
KR (1) KR101478860B1 (en)
CN (1) CN101755107B (en)
DE (1) DE102008031311A1 (en)
WO (1) WO2009024390A1 (en)

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JP2011185092A (en) * 2010-03-04 2011-09-22 Honda Motor Co Ltd Engine
CN101886561B (en) * 2010-06-30 2012-05-23 芜湖杰锋汽车动力系统有限公司 Mechanical flameout tappet for engine

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Publication number Priority date Publication date Assignee Title
CN1111712A (en) * 1994-02-18 1995-11-15 F·波尔希名誉工学博士公司 Plug used in switch valve of internal combustion engine
CN1232525A (en) * 1996-10-16 1999-10-20 Ina滚动轴承谢夫勒无限责任公司 Tappet for valve gear mechanism of IC engine
DE102005030718A1 (en) * 2005-07-01 2007-01-04 Schaeffler Kg Turn-off element for a valve train of an internal combustion engine
DE102007008574A1 (en) * 2007-02-19 2008-08-21 Schaeffler Kg Switchable bucket tappets

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WO2009024390A1 (en) 2009-02-26
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DE102008031311A1 (en) 2009-01-22
JP2010533819A (en) 2010-10-28

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