WO2008074651A1 - Verdrehgesicherter stössel eines ventiltriebes - Google Patents
Verdrehgesicherter stössel eines ventiltriebes Download PDFInfo
- Publication number
- WO2008074651A1 WO2008074651A1 PCT/EP2007/063455 EP2007063455W WO2008074651A1 WO 2008074651 A1 WO2008074651 A1 WO 2008074651A1 EP 2007063455 W EP2007063455 W EP 2007063455W WO 2008074651 A1 WO2008074651 A1 WO 2008074651A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plunger
- rotation
- shirt
- spring arms
- tappet
- Prior art date
Links
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
-
- 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
- F01L2307/00—Preventing the rotation of tappets
Definitions
- the invention relates to a rotationally secured ram of a valve train of an internal combustion engine according to the preamble of patent claim 1 and a non-rotating ram according to the preamble of patent claim 1.
- a rotatably secured ram of a valve train of an internal combustion engine preferably a consisting of a bottom and a shirt cup tappet is known, which is arranged between a cam and a valve and is guided in a receiving bore of a cylinder head.
- a rotation is arranged in a recess of the shirt, which slides in a guide groove of the cylinder head.
- the rotation is formed as an elastic spring element and consists of a back and two adjoining clips, which are clipped into two longitudinal slots in the shirt of the plunger.
- the invention is concerned with the problem of providing a generic twist-proof ram an improved embodiment in which an anti-rotation is structurally simple and easy and solid to connect to the plunger without it comes to unacceptably high voltage spikes in the material of the plunger.
- the invention is based on the general idea to provide in an anti-rotation two extending in the circumferential direction of a plunger spring arms, which ensure a fixation of the anti-rotation over the two spring arms mounted on the ram against rotation.
- the two spring arms are at least partially on either an outer lateral surface of the plunger or from an inner surface of the shirt of the rotationally secured plunger and fix the rotation on the plunger by a radially acting on this clamping force.
- the shirt also includes a transition region to a bottom of the plunger.
- the two spring arms of the anti-rotation rest on the inner circumferential surface, they have a larger radius than the inner circumferential surface, whereby the spring arms are radially outwardly bracing against the inner circumferential surface of the shirt of the plunger.
- a rotation lock with spring arms which bear against the outer lateral surface they have a smaller radius compared to the outer lateral surface, so that they clamp around the plunger with an anti-rotation lock fixed on the plunger and press against the outer jacket surface of the shirt / plunger with a radially inwardly acting force.
- an anti-rotation device Due to the anti-rotation device according to the invention a large clamping force can be transmitted due to the circumferentially radially adjacent spring arms, without a local surface pressure and thus a material overload must be taken into account.
- such an anti-rotation device can be produced as a cost-effective sheet-metal forming part, which in particular makes it possible to reduce the production costs.
- the spring arms of the rotation at least partially receiving radial annular groove.
- an annular groove simplifies the installation of the anti-rotation device on the plunger considerably and fixes the latter in the assembled state in the axial direction on the plunger.
- a radial annular groove can be integrated without much additional effort in an already required turning of the plunger, so that there are no significant additional costs.
- the annular groove also offers a possibility of forced positioning of the rotation, since it forcibly predetermines a predetermined and predefined position of the rotation in the assembled state.
- an annular groove open radially outward is provided on the outer circumferential surface, which holds the spring arms of the torsion bars. completely absorbs, so that they do not protrude at any point radially beyond an outer circumference of the outer circumferential surface.
- the invention further based on the general idea, the rotation as a nose-like insert element, ie without spring arms, wherein the insert element is held in a radially outwardly open and radially inwardly closed groove on the plunger form and / or non-positively.
- the rotation simplifies the latter again considerably, with a positive connection between the rotation and the groove, for example by means of soldering, gluing or welding can be achieved.
- This rotation lock is arranged in the bottom region of a, a bottom and an adjoining shirt having tappet.
- Conceivable here is also a connection between the anti-rotation and the associated groove in the manner of a dovetail connection, wherein the rotation has a dovetail-like cross-section, while the groove has a complementary undercut cross section, so that the rotation is positively held in the groove.
- 1 is a partial view of a rotationally secured plunger according to the invention with an anti-rotation as an outer clip
- FIG. 5 is a representation as in FIG. 4 but from a different perspective
- 6a is a longitudinal sectional view through a non-rotating plunger of FIG. 4,
- FIG. 7 shows an anti-rotation device according to FIG. 6b in a rotationally secured ram according to FIG. 6a, FIG.
- FIG. 8 shows a cross section through a non-rotating plunger according to FIG. 7 in the region of the anti-twist device
- FIG. 9 is a view of a non-rotating plunger with an anti-twist device disposed therein,
- FIG. 11a, b show a representation as in FIG. 6a, b, but in another embodiment,
- FIG. 12 is a cross-sectional view through a non-rotating plunger according to FIG. 10 in the region of the anti-twist device, FIG.
- FIG. 13 is a view as in Fig. 9, but in another embodiment,
- 15a to c show a cross section through a non-rotating plunger according to the invention in the region of the anti-twist device.
- the non-rotating plunger 1 is preferably designed as a bucket tappet and usually between a not shown No and a valve, also not shown, for example, arranged between a control cam and a gas exchange valve.
- the plunger 1 performs an oscillating reciprocating motion in a receiving bore, not shown, of a cylinder head 4 (see Fig. 3d), wherein a guide groove 5 is provided in the cylinder head 4, into which an anti-rotation 6 protruding radially outwards engages against rotation ram 1.
- the anti-rotation device 6 is arranged in a recess 7 of the shirt 3 of the plunger 1.
- the anti-twist device 6 has two spring arms 8, 8 'extending in the circumferential direction of the shirt 3 or the plunger 1, which abut at least in regions on an outer circumferential surface 10 of the plunger 1 and by a radially inward direction the shirt 3 or on the plunger 1 acting clamping force the rotation 6 fix on the plunger 1. It is on the outer surface 10 of the shirt 3 and the plunger 1 one, the spring arms 8, 8 'of the rotation 6 completely receiving and radially inwardly recessed annular groove 9 is provided (see Fig. 2b), so that the spring arms 8, 8 'protrude at any point in the radial direction over an outer circumferential surface 10 of the plunger 1 radially outward.
- FIG. 2 a shows such an anti-rotation device 6, with its two spring arms 8, 8 'extending in the circumferential direction, which meet in the region of a back 11 projecting radially outwards.
- the anti-rotation 6 may be formed as a sheet metal forming part, wherein the two spring arms 8, 8 'in an anti-rotation device according to FIGS. 1 to 3 have a smaller radius compared to the outer circumferential surface 10, so that the spring arms 8, 8' mounted on the plunger 1 against rotation 6 on the outer circumferential surface 10 and in the arranged there annular groove Press 9 with radially inward force.
- the back 11 is in accordance with FIG.
- the anti-rotation device 6 is secured in the assembled state against displacement in the circumferential direction.
- a cross section through the non-rotating plunger 1 in the region of the annular groove 9 is shown, wherein also the radially inwardly recessed axial groove 12 can be seen.
- the anti-rotation according to FIG. 3b is preferably formed as a sheet metal bent part, wherein the back 11 surrounds a locking element 15, which engages on the one hand in the axial groove 12 and on the other hand from the back 11 of the anti-rotation device 6 is thereby secured against an adjustment in the circumferential direction.
- the anti-rotation device 6 is shown, as it is guided with its back 11 in the guide groove 5 of the cylinder head 4 and thereby secures the plunger 1 against rotation.
- the two spring arms 8, 8 'of the anti-twist device 6 are usually formed in the circumferential direction so long as they together form a clasp covering at least more than 180 ° (compare FIG.
- the rotation 11 is thus complementary to the cross-sectional profile of the guide groove 5, whereby an exact guidance of the plunger 1 in the Receiving bore on the cylinder head 4 can be ensured.
- the annular groove 9 may generally be formed either completely or only partially encircling.
- the two spring arms 8, 8 'in this case have not built anti-rotation 6 in comparison to the outer radius of the plunger 1 smaller radius, whereby they exert a clamping force on the latter when clipped onto the shirt 3 and thus the rotation 6 reliably on the shirt 3 and Fix ram 1.
- a rotation of the anti-twist device 6 in the circumferential direction is prevented by the overall wider back 11 of the anti-rotation device 6, which is supported in the axial groove 12 or on the longitudinal edge 14 of the axial groove 12.
- a safeguard against rotation in the circumferential direction of the anti-rotation device 6 could be realized by correspondingly limited spring arms 8, 8 ', so that in such a case a wider version of the spine 11 could be dispensed with advantageous for the manufacturability of the rotation 6 affects.
- the shape of the spine 11, which represents the guide surface in the guide groove 5 can be either cylindrical, partially cylindrical, or even rectangular.
- the advantage of the anti-rotation device according to the invention is that due to the design, an axial displacement of the Anti-rotation 6 and a rotation of these due to the annular groove 9 and axial groove 12 is not possible.
- the spring tension forces of the two spring arms 8, 8 ' which circumferentially radially act on a large area, also a high holding force can be realized, the surface pressure is relatively low due to the large area. so that no deformation of the plunger 1 can be expected.
- no release of the anti-rotation 6 is possible.
- a mounting of the rotation 6 is due to the self-positioning in the annular groove 9 and the axial groove 12 and the spring forces of the two spring arms 8, 8 'very simple and without complex devices and tools possible.
- a variant of the anti-rotation device 6 is shown in which the two spring arms 8, 8 'at least partially create an inner circumferential surface 16 of the shirt 3 and by a radially outwardly acting on the shirt 3 clamping force, the rotation 6 on the shirt 3 fix.
- the two spring arms 8, 8 ' have a larger radius compared to the outer radius of the plunger 1, so that when the rotation lock 6 is mounted, the two spring arms 8, 8' press against the inner circumferential surface 16 from the inside.
- the back 11 protrudes through the configured as through hole recess 7 'through the shirt 3 radially outward and thereby allows the protection against rotation of the plunger 1 in the receiving bore of the cylinder head 4.
- 6a is a longitudinal section through the plunger according to the invention. 1 shown, being at the inner A circumferential surface 16 is provided a radially outwardly recessed annular groove 9 ', in which the two spring arms 8, 8' of the anti-rotation 6 engage.
- the two spring arms 8, 8 'in the region of their free ends each have a radially outwardly projecting projection 17, 17', so that the spring arms 8, 8 ', for example, only in the region of these projections 17, 17' or further projections 17 ''and17''' on the inner circumferential surface 16 and the annular groove 9 abut (see FIG .. 8).
- the anti-rotation device 6 has two projections 17 on each spring arm 8, 8 ', which allow only a partial engagement of the spring arms 8, 8' on the inner circumferential surface 16.
- the recess 7 in the shirt 3 according to FIG. 9 is designed so that the anti-rotation device 6 with its lateral back portions 13, 13 'at the respective longitudinal edge 19, 19' of the recess 7 'applies and thereby twisting the anti-rotation. 6 prevented in the circumferential direction.
- a similar representation also provides Fig. 6 and 7.
- the recess 7 is of circular design, wherein the back 11 also rests with back regions 13 and 13 'on an edge 20 of the through opening 7 and also by this fact twisting of the anti-rotation device 6 in the circumferential direction can be prevented.
- the anti-rotation 6 is formed as a nose-like insert member 21 which in a radially outwardly open and radially inwardly closed groove, in particular an axial groove 12, the ram 1 positive and / or non-positively is held.
- the radially outwardly open and radially inwardly closed groove 12 is arranged in the bottom region of the plunger 1, ie in the region in which a wall thickness of the shirt 3 and the bottom 2 is significantly greater than in the rest of the shirt area.
- the anti-rotation device 6 in this case preferably consists of a solid insert element 21, wherein the plunger 1 facing surface of the insert element 21 is preferably formed as a flat surface, which is placed on a likewise flat groove bottom 22.
- An attachment of the anti-rotation 6 and the insert element 21 in the groove 12 can be done for example by means of soldering, welding and / or gluing.
- the groove 12 is designed as an undercut groove, for example in the manner of a dovetail joint, and the insert element 21 has a spring formed complementary thereto, whereby not only a frictional connection but also a positive connection between the insert element 21 and the plunger 1 can be achieved.
- the groove 12 is formed as the insert element 21 on all sides enclosing recess, so that even in case of failure of the cohesive connection no detachment of the insert element 21 is possible.
- the groove 12 or a similar depression in the plunger 1 can be easily produced by a cost milling, while the insert element 21 is inexpensive to produce as a massive forming part.
- the assembly of the insert element 21 is simply possible due to the self-positioning of the rotation 6 in the groove 12 and in the recess 7, whereby an assembly cost is reduced.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800466442A CN101605966B (zh) | 2006-12-18 | 2007-12-06 | 阀驱动装置的防转定位挺杆 |
EP07847927A EP2102454B1 (de) | 2006-12-18 | 2007-12-06 | Verdrehgesicherter stössel eines ventiltriebes |
US12/519,602 US8201532B2 (en) | 2006-12-18 | 2007-12-06 | Rotationally locked tappet of a valve timing mechanism |
AT07847927T ATE523661T1 (de) | 2006-12-18 | 2007-12-06 | Verdrehgesicherter stössel eines ventiltriebes |
BRPI0720429-9A2A BRPI0720429A2 (pt) | 2006-12-18 | 2007-12-06 | Tucho à prova de torção de um acionamento de válvula |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006059716.8 | 2006-12-18 | ||
DE102006059716A DE102006059716A1 (de) | 2006-12-18 | 2006-12-18 | Verdrehgesicherter Stößel eines Ventiltriebes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008074651A1 true WO2008074651A1 (de) | 2008-06-26 |
Family
ID=39149161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/063455 WO2008074651A1 (de) | 2006-12-18 | 2007-12-06 | Verdrehgesicherter stössel eines ventiltriebes |
Country Status (7)
Country | Link |
---|---|
US (1) | US8201532B2 (de) |
EP (1) | EP2102454B1 (de) |
CN (1) | CN101605966B (de) |
AT (1) | ATE523661T1 (de) |
BR (1) | BRPI0720429A2 (de) |
DE (1) | DE102006059716A1 (de) |
WO (1) | WO2008074651A1 (de) |
Families Citing this family (36)
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DE102010026360B4 (de) * | 2010-07-07 | 2020-12-03 | Schaeffler Technologies AG & Co. KG | Stößel mit einer Verdrehsicherung |
KR101883024B1 (ko) | 2010-12-13 | 2018-08-24 | 이턴 코포레이션 | 펌프 액튜에이터 회전 방지 장치 |
FR2979268B1 (fr) * | 2011-08-22 | 2013-08-16 | Peugeot Citroen Automobiles Sa | Procede de fabrication d'une culasse presentant un guide de poussoir de soupape |
CN103161537B (zh) * | 2011-12-09 | 2015-10-28 | 淄博柴油机总公司 | 一种内燃机 |
USD701243S1 (en) | 2011-12-13 | 2014-03-18 | Eaton Corporation | Pump actuator anti-rotation device |
US8944020B2 (en) * | 2011-12-14 | 2015-02-03 | Caterpillar Inc. | Valve lifter assembly for internal combustion engine |
US20130152886A1 (en) * | 2011-12-14 | 2013-06-20 | Caterpillar, Inc. | Method Of Extending Engine Service Life And Angular Displacement-Limiting Clip For Same |
US8813706B2 (en) | 2012-04-30 | 2014-08-26 | Caterpillar Inc. | Internal combustion engine having valve lifter assembly with misalignment limiting key pin |
DE102012209186A1 (de) * | 2012-05-31 | 2013-12-05 | Schaeffler Technologies AG & Co. KG | Stößel für einen Ventil- oder Pumpentrieb, sowie Verfahren zur Herstellung eines Stößels |
JP6110080B2 (ja) * | 2012-06-20 | 2017-04-05 | 株式会社オティックス | 内燃機関用のローラリフタ |
FR2998629B1 (fr) * | 2012-11-29 | 2015-07-03 | Skf Ab | Dispositif de rouleau suiveur de came |
DE102013201335A1 (de) * | 2013-01-29 | 2014-07-31 | Schaeffler Technologies Gmbh & Co. Kg | Stößel |
EP2853698B1 (de) * | 2013-09-27 | 2016-06-01 | Aktiebolaget SKF | Ventilstössel, Einspritzpumpe und Ventilaktor mit einem solchen Ventilstössel und Herstellungsverfahren |
EP3092377A4 (de) * | 2014-01-12 | 2017-11-15 | Eaton Corporation | Ölflusskontrolle für einen motorventilheber und verdrehsicherung |
DE102014220839B4 (de) * | 2014-10-15 | 2016-07-21 | Continental Automotive Gmbh | Hochdruckpumpe für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine |
DE102014220937B4 (de) | 2014-10-15 | 2016-06-30 | Continental Automotive Gmbh | Antriebsvorrichtung zum Antreiben einer Kraftstoffhochdruckpumpe sowie Kraftstoffhochdruckpumpe |
WO2016115346A1 (en) * | 2015-01-14 | 2016-07-21 | Eaton Corporation | Engine valve lifter anti-rotation device |
JP6404761B2 (ja) | 2015-03-31 | 2018-10-17 | 株式会社オティックス | リフタ構造 |
EP3085945B1 (de) * | 2015-04-23 | 2019-03-27 | Aktiebolaget SKF | Nockenfolger, einspritzpumpe und ventilaktuator mit solch einem nockenfolger und herstellungsverfahren |
WO2016175975A1 (en) | 2015-04-28 | 2016-11-03 | Cummins Inc. | Pinless tappet in a common rail high pressure fuel pump |
US10024286B2 (en) | 2015-07-15 | 2018-07-17 | GT Technologies | Tappet assembly for use in an internal combustion engine high-pressure fuel system |
WO2017106839A1 (en) * | 2015-12-18 | 2017-06-22 | Eaton Corporation | Engine valve lifter |
JP6571019B2 (ja) | 2016-01-28 | 2019-09-04 | 株式会社オティックス | ローラリフタ及びその製造方法 |
JP6892868B2 (ja) * | 2016-02-19 | 2021-06-23 | イートン インテリジェント パワー リミテッドEaton Intelligent Power Limited | 回転防止プラグを有するエンジンバルブリフタ |
US10690016B2 (en) | 2016-02-19 | 2020-06-23 | Eaton Intelligent Power Limited | Engine valve lifter having anti-rotation plug |
US10119607B2 (en) | 2016-04-15 | 2018-11-06 | Koyo Bearings North America Llc | Follower mechanism |
WO2018075425A1 (en) * | 2016-10-17 | 2018-04-26 | Eaton Corporation | Hydraulic lash adjuster assembly sleeves |
WO2018098283A1 (en) * | 2016-11-22 | 2018-05-31 | Eaton Corporation | Engine valve lifter oil flow control and anti-rotation feature |
CN110249115B (zh) | 2017-01-27 | 2023-09-15 | 伊顿智能动力有限公司 | 具有冲压对准的防旋转特征部的泵致动器 |
USD827719S1 (en) * | 2017-05-17 | 2018-09-04 | FBM Systems and, Inc. | Gaming machine |
US10247052B2 (en) * | 2017-07-31 | 2019-04-02 | Caterpillar Inc. | Guide assembly for valve lifters of engines |
US11149593B2 (en) | 2019-10-03 | 2021-10-19 | Koyo Bearings North America Llc | Tappet assembly with formed anti-rotation alignment device |
US11143059B2 (en) | 2019-10-03 | 2021-10-12 | Koyo Bearings North America Llc | Tappet assembly with unground outer cup |
BR112022013003A2 (pt) * | 2020-01-30 | 2022-09-06 | Baker Hughes Oilfield Operations Llc | Rolamento de motor com mola antirrotação para bomba de poço elétrica submersível |
CN113945307B (zh) * | 2021-10-08 | 2023-07-21 | 哈尔滨工程大学 | 一种测量发动机凸轮挺柱接触力的传感器及测量方法 |
CN115355070B (zh) * | 2022-08-17 | 2023-08-01 | 浙江汇裕汽车零部件有限公司 | 发动机用气门挺杆防转装置 |
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DE19600852A1 (de) * | 1996-01-12 | 1997-07-17 | Schaeffler Waelzlager Kg | Verdrehgesicherter Stößel |
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-
2006
- 2006-12-18 DE DE102006059716A patent/DE102006059716A1/de not_active Withdrawn
-
2007
- 2007-12-06 AT AT07847927T patent/ATE523661T1/de active
- 2007-12-06 CN CN2007800466442A patent/CN101605966B/zh not_active Expired - Fee Related
- 2007-12-06 WO PCT/EP2007/063455 patent/WO2008074651A1/de active Application Filing
- 2007-12-06 US US12/519,602 patent/US8201532B2/en not_active Expired - Fee Related
- 2007-12-06 EP EP07847927A patent/EP2102454B1/de not_active Not-in-force
- 2007-12-06 BR BRPI0720429-9A2A patent/BRPI0720429A2/pt not_active IP Right Cessation
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US3267919A (en) * | 1965-06-21 | 1966-08-23 | Gen Motors Corp | Tappet anti-rotating device |
US3886808A (en) * | 1972-12-26 | 1975-06-03 | Caterpillar Tractor Co | Engine valve lifter guide |
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Also Published As
Publication number | Publication date |
---|---|
CN101605966B (zh) | 2012-10-10 |
CN101605966A (zh) | 2009-12-16 |
EP2102454B1 (de) | 2011-09-07 |
US8201532B2 (en) | 2012-06-19 |
EP2102454A1 (de) | 2009-09-23 |
DE102006059716A1 (de) | 2008-06-26 |
US20100294219A1 (en) | 2010-11-25 |
ATE523661T1 (de) | 2011-09-15 |
BRPI0720429A2 (pt) | 2014-01-14 |
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