EP1260679B1 - Tassenstössel einer Brennkraftmaschine - Google Patents
Tassenstössel einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1260679B1 EP1260679B1 EP02009538A EP02009538A EP1260679B1 EP 1260679 B1 EP1260679 B1 EP 1260679B1 EP 02009538 A EP02009538 A EP 02009538A EP 02009538 A EP02009538 A EP 02009538A EP 1260679 B1 EP1260679 B1 EP 1260679B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cup tappet
- cam
- tappet according
- tappet
- cup
- 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 - Lifetime
Links
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
- F01L1/20—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
-
- 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/01—Absolute values
Definitions
- the invention relates to a tappet for a valve train of an internal combustion engine, with a hollow cylindrical shirt, whose one end face with a bottom for a cam contact is connected, wherein the shirt a lower height than the bucket tappet has and the bottom from the front is lifted off.
- Such a bucket tappet goes out of the regarded as genus forming DE 41 18 370 A1.
- the disadvantage is its relatively massive training, in particular in the ground area. Because of this, the oscillating masses are in the Valve gear unnecessarily increased or is to determine a large valve train work. In addition, his shirt extends over much of the height of the tappet, so that here over the entire shirt height a finishing necessary is.
- the object of the invention is therefore to provide a bucket tappet of the aforementioned type to create, which is optimized in particular in terms of its weight.
- this object is achieved in that of the front page two concave sides emanate, which sides are axially symmetric opposite and converge toward the ground, with the ground a rectangular in the direction of emigration of the cam extending Course has.
- the two axisymmetric sides extend in the direction of the ground, but may possibly also a truncated cone-like Training can be realized with a circular bottom. In the latter However, only a relatively small contact surface for the cam on the ground in front.
- the bottom is made in one piece with the sides and the shirt.
- a multi-part training for example in a joining process.
- At least one applied to the inside Stiffening rib be provided.
- an inner piston of the play compensation element abut the stiffening ribs and at the same time thus an oil transfer from the plunger storage space is in a simple manner realized in a storage room of the lash adjuster.
- the floor generally with a thickness of about 1.2 mm train. This can be done by stiffness optimizations using FEM calculations be created. Previous bucket tappets have a minimal Floor thickness of about 1.8 mm.
- the sole figure discloses a tappet 1, consisting of a hollow cylindrical shirt 2 with a cam-side end face 3. From the front side 3 extend two opposite, here concave trained Pages 4, which converge in the cam contact direction. The pages 4 turn into a bottom 5 for an immediate cam contact over. This bottom 5 has seen in plan a rectangular course and is made slightly bulged cylindrical.
- stiffening rib 6 on an inner side 7 of the bottom. 5 (Two kidney-like opposed stiffening ribs 6 are provided - see introduction). At these stiffening ribs 6 is a Inner piston 8 of a hydraulic clearance compensation element 9 at. Furthermore is shown that in the shirt 2 a recess 10 for a rotation 11 is applied. About this rotation 11 of the tappet is the first in a longitudinal groove of a receptacle of a cylinder head of an internal combustion engine guided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
- 1
- Tassenstößel
- 2
- Hemd
- 3
- Stirnseite
- 4
- Seite
- 5
- Boden
- 6
- Versteifungsrippe
- 7
- Innenseite
- 8
- Innenkolben
- 9
- Hydraulisches Spielausgleichselement
- 10
- Aussparung
- 11
- Verdrehsicherung
- d
- Dicke Boden
Claims (7)
- Tassenstößel (1) für einen Ventiltrieb einer Brennkraftmaschine, mit einem hohlzylindrischen Hemd (2), dessen eineStirnseite (3) direkt mit einem von dieser abgehobenen Boden (5) für einen Nockenkontakt verbunden ist, von weicherStirnseite (3) zwei sich achssymmetrisch gegenüberliegende und in Richtung zum Boden (5) aufeinander zulaufende konkaveSeiten (4) ausgehen und wobei der Boden (5) einen sich in Auswanderungsrichtung des Nockens erstreckenden, rechteckartigen Verlauf hat, dadurch gekennzeichnet, dass eine Innenseite (7) des Bodens (5) zumindest eine einteilig mit diesem verbundene Versteifungsrippe (6) besitzt.
- Tassenstößel nach Anspruch 1, dadurch gekennzeichnet, dass der Boden (5) in die Auswanderungsrichtung des Nockens gesehen zylindrisch ausgewölbt ist.
- Tassenstößel nach Anspruch 1, dadurch gekennzeichnet, dass der Boden (5) eine Dicke d [mm] im Bereich von 1,1 < d < 1,85 hat.
- Tassenstößel nach Anspruch 1, dadurch gekennzeichnet, dass der Boden (5) eine Dicke d [mm] von 1,2 aufweist.
- Tassenstößel nach Anspruch 1, dadurch gekennzeichnet, dass das Hemd (2) von wenigstens einer Verdrehsicherung (11) überragt ist.
- Tassenstößel nach Anspruch 1, dadurch gekennzeichnet, dass der Tassenstößel (1) mit einem hydraulischen Spielausgleichselement (9) versehen ist.
- Tassenstößel nach Anspruch 6, dadurch gekennzeichnet, dass ein Innenkolben (8) des Spielausgleichselements (9) an der wenigstens einen Versteifungsrippe des Bodens (5) (6) anliegt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10123966A DE10123966A1 (de) | 2001-05-17 | 2001-05-17 | Tassenstößel |
DE10123966 | 2001-05-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1260679A2 EP1260679A2 (de) | 2002-11-27 |
EP1260679A3 EP1260679A3 (de) | 2003-08-13 |
EP1260679B1 true EP1260679B1 (de) | 2005-02-09 |
Family
ID=7685093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02009538A Expired - Lifetime EP1260679B1 (de) | 2001-05-17 | 2002-04-26 | Tassenstössel einer Brennkraftmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US6622679B2 (de) |
EP (1) | EP1260679B1 (de) |
JP (1) | JP4180302B2 (de) |
DE (2) | DE10123966A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004056458A1 (de) * | 2004-11-23 | 2006-06-14 | Schaeffler Kg | Tassenstößel |
CN106661968A (zh) * | 2014-08-26 | 2017-05-10 | 舍弗勒技术股份两合公司 | 杯状挺柱及其制造方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3593081B2 (ja) * | 2001-10-02 | 2004-11-24 | 三菱電機株式会社 | 燃料供給装置 |
DE102004025532A1 (de) * | 2004-05-25 | 2005-12-15 | Ina-Schaeffler Kg | Tassenstößel eines Ventiltriebs einer Brennkraftmaschine |
DE102004056457A1 (de) | 2004-11-23 | 2006-06-08 | Schaeffler Kg | Tassenstößel für eine Brennkraftmaschine |
DE102004058766A1 (de) | 2004-12-07 | 2006-06-08 | Schaeffler Kg | Tassenstössel für eine Brennkraftmaschine und Verfahren zur Herstellung desselben |
DE102010032254A1 (de) * | 2010-07-26 | 2012-01-26 | Schaeffler Technologies Gmbh & Co. Kg | Tassenstößel und Verfahren zu dessen Herstellung |
DE102013211279A1 (de) | 2013-06-17 | 2014-12-18 | Schaeffler Technologies Gmbh & Co. Kg | Tassenstößel für den Ventiltrieb einer Brennkraftmaschine |
DE102015215272A1 (de) | 2015-08-11 | 2017-02-16 | Schaeffler Technologies AG & Co. KG | Tassenstößel für einen Ventiltrieb einer Brennkraftmaschine |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR454518A (fr) | 1913-02-18 | 1913-07-07 | Leon Guillaume | Perfectionnement dans l'agencement et la construction des organes réalisant l'ouverture des portes par le déplacement d'une colonne d'air |
US2663288A (en) * | 1952-09-02 | 1953-12-22 | Loyd F Ashley | Variable timing cam follower |
US3238933A (en) * | 1964-05-25 | 1966-03-08 | Johnson Products Inc | Tappet |
DE3445823A1 (de) * | 1984-12-15 | 1986-06-26 | Bayerische Motoren Werke AG, 8000 München | Ventilsteuerung, insbesondere fuer brennkraftmaschinen |
GB8711993D0 (en) * | 1987-05-21 | 1987-06-24 | Jaguar Cars | Cam mechanisms |
FR2661211B1 (fr) * | 1990-04-24 | 1992-08-14 | Peugeot | Dispositif d'actionnement de deux soupapes voisines. |
DE4118370A1 (de) * | 1991-06-05 | 1992-12-10 | Bayerische Motoren Werke Ag | Lagegesicherter ventilbetaetigungs-stoessel |
US5231960A (en) * | 1991-06-21 | 1993-08-03 | Ambrose White | Method and appparatus for varying intake and exhaust valve opening and closing in a reciprocating piston engine |
US5226389A (en) * | 1992-11-04 | 1993-07-13 | Eaton Corporation | Direct acting tappet |
DE4325610A1 (de) * | 1993-07-30 | 1995-02-02 | Schaeffler Waelzlager Kg | Tassenförmiger Ventilstößel |
IT1268193B1 (it) * | 1994-12-22 | 1997-02-21 | Fiat Auto Spa | Dispositivo di comando di una valvola di un motore a combustione interna |
DE19515284A1 (de) * | 1995-04-26 | 1996-10-31 | Schaeffler Waelzlager Kg | Nockenfolger eines Ventiltriebs einer Brennkraftmaschine |
EP1164258A3 (de) * | 1997-03-27 | 2003-01-02 | Toyota Jidosha Kabushiki Kaisha | Ventilsteuerung für eine Brennkraftmaschine |
DE19728100B4 (de) * | 1997-07-02 | 2005-11-10 | Ina-Schaeffler Kg | Schaltbarer Stößel für einen Ventiltrieb einer Brennkraftmaschine |
AUPP139598A0 (en) * | 1998-01-19 | 1998-02-05 | D.A.R.U.T. Pty Ltd | Cam and cam followers for engines |
US6021751A (en) * | 1999-02-18 | 2000-02-08 | General Motors Corporation | Hydraulic valve lifter with lash |
-
2001
- 2001-05-17 DE DE10123966A patent/DE10123966A1/de not_active Withdrawn
-
2002
- 2002-04-26 DE DE50202197T patent/DE50202197D1/de not_active Expired - Lifetime
- 2002-04-26 EP EP02009538A patent/EP1260679B1/de not_active Expired - Lifetime
- 2002-05-08 US US10/141,106 patent/US6622679B2/en not_active Expired - Lifetime
- 2002-05-16 JP JP2002141878A patent/JP4180302B2/ja not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004056458A1 (de) * | 2004-11-23 | 2006-06-14 | Schaeffler Kg | Tassenstößel |
CN106661968A (zh) * | 2014-08-26 | 2017-05-10 | 舍弗勒技术股份两合公司 | 杯状挺柱及其制造方法 |
CN106661968B (zh) * | 2014-08-26 | 2019-06-21 | 舍弗勒技术股份两合公司 | 杯状挺柱及其制造方法 |
Also Published As
Publication number | Publication date |
---|---|
US20020170516A1 (en) | 2002-11-21 |
EP1260679A2 (de) | 2002-11-27 |
US6622679B2 (en) | 2003-09-23 |
DE50202197D1 (de) | 2005-03-17 |
EP1260679A3 (de) | 2003-08-13 |
JP2003003806A (ja) | 2003-01-08 |
JP4180302B2 (ja) | 2008-11-12 |
DE10123966A1 (de) | 2002-11-21 |
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