CN100554650C - But the exterior part of jointing type bucket tappet - Google Patents
But the exterior part of jointing type bucket tappet Download PDFInfo
- Publication number
- CN100554650C CN100554650C CNB2006800124313A CN200680012431A CN100554650C CN 100554650 C CN100554650 C CN 100554650C CN B2006800124313 A CNB2006800124313 A CN B2006800124313A CN 200680012431 A CN200680012431 A CN 200680012431A CN 100554650 C CN100554650 C CN 100554650C
- Authority
- CN
- China
- Prior art keywords
- exterior part
- lintel
- shirt rim
- inlet
- described exterior
- 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.)
- Expired - Fee Related
Links
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 17
- 238000005058 metal casting Methods 0.000 claims abstract description 11
- 210000001364 upper extremity Anatomy 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000005495 investment casting Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 238000012958 reprocessing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
-
- 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
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/245—Hydraulic tappets
- F01L1/25—Hydraulic tappets between cam and valve stem
Abstract
But disclose a kind of exterior part (1) of jointing type bucket tappet, integrally constituted and approximate final profile by stress metal casting (MIM) with its critical piece such as first and second lintel (9,18) and passage (13,14a).Therefore presenting can the low-cost exterior part of making (1).Cancelled cutting reprocessing as much as possible.Can cancel the independent sheet material spare that is used to form hydraulic oil channel in addition.
Description
Technical field
But the present invention relates to a kind of internal combustion valve mechanism jointing type bucket tappet exterior part that is used for, shirt rim with a hollow cylinder, the shirt rim can be contained in the pilot hole of combustion engine cylinder head by its shell, limit by a bottom as the cam rolling surface on the end face of its cam side this shirt rim, wherein, with the shirt rim concentric distributing one from the inner edge of bottom away from the upwardly extending pilot sleeve in cam side, this sleeve has the hole that is used for the bucket tappet inner piece, wherein, shirt rim and pilot sleeve are connected by first lintel that extends on the parts diameter outside and axially distribute below the bottom, wherein be provided with the male part that a pilot hole is used at least one sliding valve style, this first lintel is used to the sprocket hole side direction of hydraulic oil on sagittal plane tangent, and hydraulic oil is supplied with by a first passage that first inlet is drawn from the shell of shirt rim.
Background technique
Can connect DE 43 14 619 A1 that the exterior part of tappet constitutes by being considered as classifying has disclosed.This exterior part for example adopts extrusion technique or cutting to make.Need be appreciated that the inside of exterior part has an additional sheet material spare, so that produce the hydraulic oil channel of guiding male part and hydraulic lash compensating part.Sheet material spare must and seal there with the complicated welding of the internal surface of exterior part shirt rim.For guaranteeing sealing, internal surface needs cutting reprocessing for this reason.Generally speaking, the processing charges of said external part is unnecessarily high, causes unnecessary high cost when a large amount of production like this.
Summary of the invention
Therefore purpose of the present invention is, a kind of exterior part of eliminating the above-mentioned type of alleged shortcoming is provided.
This purpose is achieved thus according to the present invention, and promptly exterior part integral body constitutes by stress metal casting (MIM) or precision casting.
Therefore above-mentioned shortcoming is effectively eliminated.Exterior part is preferably together with its whole parts such as lintel, passage etc., by stress metal casting or precision casting manufacturing.
In the above-mentioned stress metal casting method (MIM) that speciality circles itself are enough understood, plastic injection-moulded freedom combines with the advantage of powder metallurgy in parts constitute, and can select material under very little tolerance on a large scale.What have advantage is that particularly undercutting, cavity, screw thread etc. can produce during the stress metal casting simultaneously.Here the professional workforce uses guiding valve-and/or core drawing process.
What have advantage in this external above-mentioned stress metal casting is that these parts can be made on traditional injection molding machine of plastic.Cancel cutting or it is dropped to bottom line.It is evident that the said external part does not have crackle and has good intensity after the processing of its pressure injection-moulded technology.Wall thickness can be 1mm or littler when needing, and therefore the gross mass to exterior part also produces favourable influence to the valve mechanism quality of vibration like this.
Also can adopt the disposable core operation of for example being made up of plastics in principle when making exterior part, wherein, dissociating of this kind core undertaken by thermolysis and evaporation.
Cut down finished cost by cancellation cutting reprocessing step and sheet material spare.
In further formation of the present invention, the inside of pilot sleeve is provided with an inner piece of attachable bucket tappet, and it has the hydraulic lash compensation device.For supplying with hydraulic oil to it, enter the mouth at another inlet that relatively is provided with on the diameter on the shell of shirt rim with first on the shell of shirt rim, can be by it with hydraulic oil guiding clearance compensation device.Two inlets outer radial on second lintel is relative, and preferably quadrature is tangent on plan view with first lintel that has pilot hole for this second lintel.
In concrete formation of the present invention, from ring part of following placement, the move supporting of spring constitutes as at least one sky for it on above-mentioned lintel.For spring is better led, this ring part have one from its outer rim at the flange that protrudes away from the direction of cam.
According to another formation according to purpose of the present invention, first passage tilts by bucket tappet and utilizes male part to be distributed in before the pilot hole from first inlet.The directly moulding on second lintel of another passage, thereby the axis normal of itself and exterior part, tangent with the hole of pilot sleeve.
What have advantage is all to have a cannelure on the shell of shirt rim with regard to each inlet.This cannelure is communicated with the conveying circuit that cuts off the cylinder head pilot hole respectively.Such first and second passages are in all the time by the hydraulic oil condition of supplying and have saved cannelure complicated in the cylinder head pilot hole in other words.
Hydraulic oil is preferably in abandons directly lead under the deposit chamber situation that exists in the above-mentioned prior art at least one link and hydraulic lash compensating part.Can certainly imagine and below the bottom, be each fan-shaped deposit chamber of hydraulic oil setting.
Propose in addition, on the shell of shirt rim from end face and the connecting sheet of a projection on the cam direction is set at the face of each inlet.Owing to there are these connecting sheets, so, outside parts enter in its pilot hole sinking to motion the time be provided for leading the sufficiently high seal clearance of the hydraulic oil of cylinder head.Therefore reduce the hydraulic oil loss.
Propose in addition, the bottom of exterior part descends in the outside of cam rolling surface.This point for example advantage is to improve the rigidity of exterior part.For preventing that the professional workforce can add suitable drain hole in the roofing recess that hydraulic oil accumulates in so obtain in the bottom section of recess, it preferably also produces in this stress metal casting constitutes.
Bottom column type camber arch on the cam movement direction by exterior part constitutes, and can make the exterior part diameter littler.The professional workforce selects above-mentioned obtained recess width like this, realizes the cam contact in any case make it all pass through whole width.
The bottom of exterior part preferably contacts two big stroke cams that distribute in the pilot sleeve both sides.
It is contemplated that simultaneously that for this reason a kind of " exterior part that can connect bucket tappet " with above-mentioned roofing decline bottom is provided, and this part is not with the MIM method, but adopts common extruding or drawing technique manufacturing.As male part known guiding valve group itself or at least one guiding valve can be set, this guiding valve group or guiding valve preferably in one direction by hydraulic fluid pressure and on another direction the power by at least one mechanical spring move.
Description of drawings
Now the present invention is described in detail by accompanying drawing according to purpose.Wherein:
Fig. 1 illustrates the stereogram according to exterior part of the present invention;
Fig. 2 illustrates the exterior part longitudinal section along another lintel of exterior part;
Fig. 3 illustrates another view that has as the exterior part of the independent ring part of spring assembly;
Fig. 4 illustrate exterior part also in the zone of another lintel from descending the longitudinal section of face tilt; And
Fig. 5 illustrates ring part shown in Figure 3.
Embodiment
But Fig. 1-4 illustrates an exterior part 1 that is used for the jointing type bucket tappet, and its parts whole with it have advantage ground by stress metal casting (MIM) or precision casting manufacturing.
Exterior part 1 has the shirt rim 2 of a hollow cylinder, and shirt rim 2 can be arranged in the receiving bore of cylinder head by its shell 3.Here limit as the bottom 5 of column type camber arch on the cam movement direction of cam rolling surface by one on the end face 4 of its cam side shirt rim 2.
5 inner edge 6 extends a pilot sleeve 7 that has hole 8 in the direction away from cam from the bottom.An inner piece of attachable bucket tappet can be set in this hole 8.This inner piece can but and nonessentially have a hydraulic lash compensation device.
Axially 5 the diameter below by exterior part 1 extends first lintel 9 in the bottom.This lintel has a pilot hole 10, but the inside can be provided with the male part that at least one hydraulic type ground loads towards movement direction.In this regard as shown in Figure 3, pilot hole 10 is cut off by the first passage 13 of hydraulic oil on a sagittal plane 11.This passage is drawn and is just integrally made when adopting the MIM method from first inlet 14 on 2 shells of shirt rim.First passage 13 here distributes towards pilot hole 10 by exterior part 1 agley.
In addition, first inlet 14 flows with a cannelure 16 maintenances on 2 shells 3 of shirt rim and is connected.Have and being connected of the same above-mentioned mode of another cannelure 17 with its relative second inlet 15 on diameter.Each cannelure 16,17 is communicated with the sprocket hole of hydraulic oil, and sprocket hole is tangent with the cylinder head pilot hole that is used for exterior part 1.Therefore whole strokes of parts 1 can be supplied with hydraulic oil in the stage outside.
Shown in Fig. 2,4, second channel 14a directly draws from second inlet 15 by second lintel 18.Its inner radial is connected with hole 8 and is used for to the hydraulic lash compensating part supply hydraulic fluid that is arranged in the unshowned inner piece.Second channel 14a preferably forms during the stress metal casting process equally.
Another chief component of exterior part 1 described here is that bottom 5 constitutes in the outside of cam rolling surface with descending.In this regard, two of bottom 5 bowstring type upper limbs 19,20 relative (referring to Fig. 1) that equidistantly distribute with longitudinal median plane by exterior part 1.These upper limbs hang down on second lintel 18 with pilot sleeve 7 as shown in Figure 1 slightly tangent and roofing, thereby form two recesses relative on diameter 21,22.Bottom 5 this " declines " has the effect of whole exterior part 1 rigidity of raising, thus when this exterior part needs more unfertile land determine size.
In addition as shown in the figure, on the side of each inlet 14,15, exceed bottom 5 and protrude two connecting sheets 23,24 from shell 3.These connecting sheets parts 1 outside sink to the conveying circuit on " sealing " cylinder head pilot hole when mobile along doing away from the direction of cam.
Therefore, preferably cast the exterior part of 13,14 and two lintels 9,18 that in imagination prolongs, intersect of (MIM) passage that make, that have global formation and compared with prior art have lower cost relatively by stress metal.Wherein can cancel cutting reprocessing or addition thereto such as welding for example substantially.Self-evident is to it is also contemplated that to allow the inner piece that is distributed in the pilot sleeve 7 also be made by the stress metal casting.
Reference numeral
1 exterior part
2 shirt rims
3 shells
4 end faces
5 bottoms
6 inner edges
7 pilot sleeves
8 holes
9 first lintels
10 pilot holes
11 sagittal planes
12 sprocket holes
13 first passages
14 first inlets
The 14a second channel
15 second inlets
16 cannelures
17 cannelures
18 second lintels
19 upper limbs
20 upper limbs
21 recesses
22 recesses
23 connecting sheets
24 connecting sheets
25 bottom surfaces
26 bottom surfaces
27 ring parts
28 outer rims
29 flanges
Claims (11)
1. but the exterior part (1) that is used for the jointing type bucket tappet of internal combustion valve mechanism, this exterior part (1) has the shirt rim (2) of open circles pillar, this shirt rim (2) can be contained in the pilot hole of cylinder head of internal-combustion engine by its shell (3), go up by bottom (5) restriction as the cam rolling surface at the end face (4) of its cam side this shirt rim (2), wherein, with the inner edge (6) of shirt rim (2) concentric distributing from the bottom (5) away from the upwardly extending pilot sleeve in cam side (7), this pilot sleeve has the hole (8) that is used for the bucket tappet inner piece, wherein, shirt rim (2) and pilot sleeve (7) are connected by first lintel (9) that extends on parts (1) diameter outside and axially distribute below the bottom, in first lintel (9), be provided with the male part that pilot hole (10) is used at least one sliding valve style, this first lintel (9) is used to sprocket hole (12) side direction of hydraulic oil on sagittal plane (11) tangent, the first passage (13) that hydraulic oil is drawn by first inlet (14) from shirt rim (2) shell (3) is supplied with, it is characterized in that described exterior part (1) integrally constitutes by stress metal casting (MIM) or precision casting.
2. by the described exterior part of claim 1, wherein, go up in first passage (13) and first lintel (9) tangential that skew ground is distributing and the whole second channel (14a) that is connected of exterior part, second channel (14a) on shirt rim (2) second enter the mouth (15) draw and with pilot sleeve (7) to be used for hole (8) that the hydraulic lash compensating part that can be arranged in the inner piece is supplied tangent.
3. by the described exterior part of claim 2, wherein, first and second inlets (14,15) on the diameter of shirt rim (2) relatively, and their connecting line and first lintel (9) and pilot hole (10) nearly orthogonal ground is tangent at least.
4. by claim 1 or 2 described exterior parts, wherein, under the situation of reference claim 1, first inlet (14) is connected with cannelure (16) on shirt rim (2) shell (3), perhaps under the situation of reference claim 2, at least one inlet (14,15) is communicated with cannelure (16,17) on shirt rim (2) shell (3).
5. by the described exterior part of claim 3, wherein, axially constitute another extension and second lintel (18) of being connected with its integral body on parts (1) diameter outside apart with bottom (5), go up or each one inlet (14 that in the peripheral region of second lintel (18), radially outside distributes at second lintel (18), 15), wherein, first passage (13) tilts or is distributed to sagittal plane (11) on first lintel (9) that has pilot hole (10) from its first inlet (14) agley, and second channel (14a) is drawn from its second inlet (15), and the respective segments of described second lintel (18) is set in this second inlet.
6. by the described exterior part of claim 5, wherein, exterior part (1) can be prevented screwing in its pilot hole on cylinder head in the following manner with reversing, promptly second lintel (18) is distributed on the bottom abreast with the cam movement direction, this bottom (5) has two bowstring type upper limbs (19,20) that equidistantly distribute by exterior part (1) with longitudinal median plane, hangs down into to lead on second lintel (18) that is used to form two recesses (21,22) that distribute on away from the cam direction their roofings.
7. by the described exterior part of claim 6, wherein, the bowstring type upper limb (19,20) of recess (21,22) is provided with the approximate distance in pilot sleeve (7) diameter range or this sleeve is cut off to the secant formula slightly.
8. by the described exterior part of claim 1, wherein, on the circumferential segment of location inlet (14,15), the shell (3) of shirt rim (2) prolongs by exceeding bottom (5) with its whole connecting sheet (23,24) that is connected in the above.
9. by the described exterior part of claim 5, wherein, on the bottom surface (25,26) of first and second lintel (9,18), distributing one as the move ring part (27) of spring one end bearing spare of sky, on this ring part (27), optionally existing from its outer rim (28) in the flange that protrudes away from the direction of cam (29).
10. by the described exterior part of claim 1, wherein, bottom (5) have the distribution of column type camber arch on the cam movement direction.
11. by the described exterior part of claim 1, wherein, the wall thickness on the exterior part (1) is basic identical.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005017409.4 | 2005-04-15 | ||
| DE102005017409A DE102005017409A1 (en) | 2005-04-15 | 2005-04-15 | Outer part of a switchable tappet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101160453A CN101160453A (en) | 2008-04-09 |
| CN100554650C true CN100554650C (en) | 2009-10-28 |
Family
ID=36660760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006800124313A Expired - Fee Related CN100554650C (en) | 2005-04-15 | 2006-03-16 | But the exterior part of jointing type bucket tappet |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1869295B1 (en) |
| JP (1) | JP2008536046A (en) |
| KR (1) | KR101304629B1 (en) |
| CN (1) | CN100554650C (en) |
| DE (1) | DE102005017409A1 (en) |
| WO (1) | WO2006108483A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008062185A1 (en) * | 2008-12-13 | 2010-06-17 | Schaeffler Kg | Switchable bucket tappets |
| EP2937566B1 (en) * | 2014-04-22 | 2016-10-19 | Aktiebolaget SKF | Cam follower roller device, notably for a fuel injection pump |
| EP2947285B1 (en) | 2014-05-22 | 2017-07-12 | Aktiebolaget SKF | Mechanical system forming a cam follower or a rocker arm, including an inner cavity adapted to contain an oil bath |
| DE102017109303B3 (en) | 2017-05-02 | 2018-06-21 | Schaeffler Technologies AG & Co. KG | Actuator for adjusting the compression ratio of a reciprocating engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2245327A (en) * | 1990-05-17 | 1992-01-02 | T & N Technology Ltd | Tappets |
| US5129372A (en) * | 1989-06-24 | 1992-07-14 | Gmb Giesserei & Maschinenbau Bodan Ag | Cup tappet body for valve tappets |
| DE4309602A1 (en) * | 1993-03-24 | 1994-09-29 | Bayerische Motoren Werke Ag | Valve tappet for two lift valves of an internal combustion engine |
| US6273041B1 (en) * | 1998-01-17 | 2001-08-14 | Ina Walzlager Schaeffler Ohg | Cam follower in a valve train of an internal combustion engine switchable between different lifts for at least one gas-exchange valve |
| EP0841474B1 (en) * | 1996-11-07 | 2001-09-19 | Bayerische Motoren Werke Aktiengesellschaft | Engine valve lifter with deactivation mechanism, in particular for cylinder cut-off |
| DE10212327A1 (en) * | 2001-09-11 | 2003-03-27 | Porsche Ag | Induction and exhaust valve mechanism has switching supply lines for first valve separate from those for second valve |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090364A (en) * | 1990-12-14 | 1992-02-25 | General Motors Corporation | Two-step valve operating mechanism |
| DE4244711A1 (en) * | 1992-04-27 | 1994-03-03 | Iav Motor Gmbh | Valve drive for charge change valves of IC piston engine - has annular closure centrally sliding in central tappet, w.r.t. to tappet axis. |
| DE4343876A1 (en) * | 1993-12-22 | 1995-06-29 | Schaeffler Waelzlager Kg | Valve actuator for IC engine |
| DE9400453U1 (en) * | 1994-01-13 | 1994-02-24 | Schaeffler Waelzlager Kg | Tappet for a valve train of an internal combustion engine |
| US5431133A (en) * | 1994-05-31 | 1995-07-11 | General Motors Corporation | Low mass two-step valve lifter |
| DE19515284A1 (en) * | 1995-04-26 | 1996-10-31 | Schaeffler Waelzlager Kg | Cam follower of a valve train of an internal combustion engine |
| DE19603915A1 (en) * | 1996-02-03 | 1997-08-07 | Schaeffler Waelzlager Kg | Tappet for a valve train of an internal combustion engine |
| US6564856B1 (en) * | 1997-10-20 | 2003-05-20 | Chipless Metals Llc | Method of making precision castings using thixotropic materials |
| JP3535421B2 (en) * | 1998-12-22 | 2004-06-07 | 本田技研工業株式会社 | Valve train for internal combustion engine |
| US5979383A (en) * | 1999-04-23 | 1999-11-09 | General Motors Corporation | Rocker arm assembly lubrication |
| DE19952909B4 (en) * | 1999-11-03 | 2010-06-24 | Schaeffler Kg | Switchable support element |
| DE10123963A1 (en) * | 2001-05-17 | 2002-11-21 | Ina Schaeffler Kg | Tappet for valve drive has two opposite flat spots on inner head part to free outer cams |
| KR20030048704A (en) * | 2001-12-12 | 2003-06-25 | 현대자동차주식회사 | High strength semi solid aluminum tappet and its production process |
| DE10330673A1 (en) * | 2002-08-02 | 2005-02-03 | Bayerische Motoren Werke Ag | Rocker lever for lift-variable valve gear in cylinder head of internal combustion engine has housing and control track are manufactured in one piece by means of powder-metallurgical injection moulding process |
| DE10318295A1 (en) * | 2003-04-23 | 2004-11-11 | Ina-Schaeffler Kg | Drag lever of a valve train of an internal combustion engine |
| DE10330881A1 (en) * | 2003-07-09 | 2005-01-27 | Ina-Schaeffler Kg | Method for producing an outer lever of a switchable rocker arm |
| KR20050030732A (en) * | 2003-09-26 | 2005-03-31 | 현대자동차주식회사 | 2 step variable lift tappet |
-
2005
- 2005-04-15 DE DE102005017409A patent/DE102005017409A1/en not_active Withdrawn
-
2006
- 2006-03-16 KR KR1020077023458A patent/KR101304629B1/en not_active IP Right Cessation
- 2006-03-16 CN CNB2006800124313A patent/CN100554650C/en not_active Expired - Fee Related
- 2006-03-16 WO PCT/EP2006/002404 patent/WO2006108483A1/en not_active Application Discontinuation
- 2006-03-16 EP EP06723461.7A patent/EP1869295B1/en not_active Expired - Fee Related
- 2006-03-16 JP JP2008505753A patent/JP2008536046A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129372A (en) * | 1989-06-24 | 1992-07-14 | Gmb Giesserei & Maschinenbau Bodan Ag | Cup tappet body for valve tappets |
| GB2245327A (en) * | 1990-05-17 | 1992-01-02 | T & N Technology Ltd | Tappets |
| DE4309602A1 (en) * | 1993-03-24 | 1994-09-29 | Bayerische Motoren Werke Ag | Valve tappet for two lift valves of an internal combustion engine |
| EP0841474B1 (en) * | 1996-11-07 | 2001-09-19 | Bayerische Motoren Werke Aktiengesellschaft | Engine valve lifter with deactivation mechanism, in particular for cylinder cut-off |
| US6273041B1 (en) * | 1998-01-17 | 2001-08-14 | Ina Walzlager Schaeffler Ohg | Cam follower in a valve train of an internal combustion engine switchable between different lifts for at least one gas-exchange valve |
| DE10212327A1 (en) * | 2001-09-11 | 2003-03-27 | Porsche Ag | Induction and exhaust valve mechanism has switching supply lines for first valve separate from those for second valve |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005017409A1 (en) | 2006-10-19 |
| WO2006108483A1 (en) | 2006-10-19 |
| CN101160453A (en) | 2008-04-09 |
| KR101304629B1 (en) | 2013-09-05 |
| EP1869295B1 (en) | 2014-01-15 |
| JP2008536046A (en) | 2008-09-04 |
| EP1869295A1 (en) | 2007-12-26 |
| KR20070122214A (en) | 2007-12-28 |
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