EP1260679A2 - Tassenstössel einer Brennkraftmaschine - Google Patents
Tassenstössel einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1260679A2 EP1260679A2 EP02009538A EP02009538A EP1260679A2 EP 1260679 A2 EP1260679 A2 EP 1260679A2 EP 02009538 A EP02009538 A EP 02009538A EP 02009538 A EP02009538 A EP 02009538A EP 1260679 A2 EP1260679 A2 EP 1260679A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- base
- cup tappet
- shirt
- 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.)
- Granted
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, one end with is connected to a floor for a cam contact.
- Such a tappet comes from the DE considered as generic 41 15 668 A1. It is equipped with a hydraulic lash adjuster Mistake. The disadvantage is its relatively massive training, especially in Floor area. Because of this, the oscillating masses are in the valve train unnecessarily increased or excessive valve train work can be determined.
- the object of the invention is therefore to provide a tappet of the aforementioned type to create that is optimized in terms of its weight.
- this object is achieved in that the shirt is a significantly lower in height than the tappet overall, with the bottom tapered roof-like is lifted from the front.
- This roof-like "raising" of the floor leads to an increase in rigidity in this area. This, in turn, can reduce the thickness of the soil can be significantly reduced to about 1.2 mm. At the same time, that by the concomitant reduction in a shirt's height and a Total area of the floor is now less area to be finished. This has an advantageous effect on production costs and effort.
- the floor rectangular, so that from the face of the shirt two parallel sides in the direction of the floor extend, but may also be a truncated cone-like design can be realized with a circular bottom. However, the latter only lies a relatively small contact area for the cam on the floor.
- the parallel sides to the floor are also trapezoidal side designs u. conceivable.
- the bottom surface in the cam contact direction to run slightly cylindrical. This is a larger contact area generated for the cam.
- the bottom with the sides and the shirt is advantageously made in one piece.
- multi-part training is also conceivable, for example in a joining process.
- At least one applied to the inside of the bottom can be stiffened Stiffening rib may be provided.
- Stiffening rib may be provided.
- an inner piston of the play compensation element lie against the stiffening ribs and at the same time there is a simple way to transfer oil from the plunger reservoir realized in a pantry of the game compensation element.
- the floor generally has a thickness of approximately 1.2 mm to train. This can be done by optimizing stiffness using FEM calculations be created. Previous tappets have a minimal Bottom thickness of about 1.8 mm.
- the single figure discloses a tappet 1 consisting of a hollow cylindrical shirt 2 with a cam-side face 3. From the face 3 extend two opposite, here concave Pages 4, which converge towards each other in the cam contact direction. Pages 4 turn into a floor 5 for direct cam contact.
- This bottom 5 has a rectangular shape in plan view is made with a slightly cylindrical bulge.
- a stiffening rib 6 can be seen on an inside 7 of the base 5 (Two stiffening ribs 6 located opposite one another like a kidney are provided - see introduction to the description). One lies on these stiffening ribs 6 Inner piston 8 of a hydraulic lash adjuster 9. Furthermore is shown that in the shirt 2 a recess 10 for an anti-rotation 11 is applied. The cup tappet 1 is secured via this anti-rotation device 11 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)
Abstract
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 (9)
- Tassenstößel (1) für einen Ventiltrieb einer Brennkraftmaschine, mit einem hohlzylindrischen Hemd (2), dessen eine Stirnseite (3) mit einem Boden (5) für einen Nockenkontakt verbunden ist, dadurch gekennzeichnet, dass das Hemd (2) eine deutlich geringere Höhe als der Tassenstößel (1) insgesamt hat, wobei der Boden (5) dachartig verjüngt von der Stirnseite (3) abgehoben ist.
- Tassenstößel nach Anspruch 1, dadurch gekennzeichnet, dass der Boden (5) einen sich in Auswanderungsrichtung einer Fläche des Nockenkontakts erstreckenden rechteckartigen Verlauf hat.
- Tassenstößel nach Anspruch 2, dadurch gekennzeichnet, dass den Boden (5) mit der Stirnseite (3) verbindende Seiten (4) im wesentlichen konkav ausgebildet sind.
- Tassenstößel nach dem Oberbegriff des Anspruchs 1 oder nach Anspruch 1, dadurch gekennzeichnet, dass der Boden (5) eine Dicke d [mm] im Bereich von 1,1 < d < 1,85 hat.
- Tassenstößel nach dem Oberbegriff des Anspruchs 1 oder nach Anspruch 1, dadurch gekennzeichnet, dass der Boden (5) eine Dicke d [mm] von ca. 1,2 aufweist.
- Tassenstößel nach Anspruch 2, dadurch gekennzeichnet, dass der Boden (5) in die Auswanderungsrichtung gesehen zylindrisch ausgewölbt ist.
- Tassenstößel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Hemd (2) von wenigstens einer Verdrehsicherung (11) überragt ist.
- Tassenstößel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Tassenstößel (1) mit einem hydraulischen Spielausgleichselement (9) versehen ist.
- Tassenstößel nach Anspruch 1 oder 8, dadurch gekennzeichnet, dass eine Innenseite (7) des Bodens (5) zumindest eine einteilig mit diesem verbundene Versteifungsrippe (6) besitzt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10123966 | 2001-05-17 | ||
DE10123966A DE10123966A1 (de) | 2001-05-17 | 2001-05-17 | Tassenstößel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1260679A2 true EP1260679A2 (de) | 2002-11-27 |
EP1260679A3 EP1260679A3 (de) | 2003-08-13 |
EP1260679B1 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 |
---|---|---|---|---|
EP1600609A3 (de) * | 2004-05-25 | 2008-10-15 | Schaeffler KG | Tassenstössel eines Ventiltriebs einer Brennkraftmaschine |
WO2012013376A1 (de) * | 2010-07-26 | 2012-02-02 | Schaeffler Technologies Gmbh & Co. Kg | Tassenstössel und verfahren zu dessen herstellung |
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 |
DE102004056457A1 (de) | 2004-11-23 | 2006-06-08 | Schaeffler Kg | Tassenstößel für eine Brennkraftmaschine |
DE102004056458A1 (de) * | 2004-11-23 | 2006-06-14 | Schaeffler Kg | Tassenstößel |
DE102004058766A1 (de) | 2004-12-07 | 2006-06-08 | Schaeffler Kg | Tassenstössel für eine Brennkraftmaschine und Verfahren zur Herstellung desselben |
DE102013211279A1 (de) | 2013-06-17 | 2014-12-18 | Schaeffler Technologies Gmbh & Co. Kg | Tassenstößel für den Ventiltrieb einer Brennkraftmaschine |
DE102014216961A1 (de) * | 2014-08-26 | 2016-03-03 | Schaeffler Technologies AG & Co. KG | Tassenstößel und Verfahren zu dessen Herstellung |
DE102015215272A1 (de) | 2015-08-11 | 2017-02-16 | Schaeffler Technologies AG & Co. KG | Tassenstößel für einen Ventiltrieb einer Brennkraftmaschine |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2663288A (en) * | 1952-09-02 | 1953-12-22 | Loyd F Ashley | Variable timing cam follower |
EP0292185A2 (de) * | 1987-05-21 | 1988-11-23 | Jaguar Cars Limited | Nockenvorrichtungen |
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 |
EP0719909A1 (de) * | 1994-12-22 | 1996-07-03 | FIAT AUTO S.p.A. | Ventilsteuerungsvorrichtung einer Brennkraftmaschine |
US5823151A (en) * | 1995-04-26 | 1998-10-20 | Ina Walzlager Schaeffler Kg | Valve gear cam follower in an internal combustion engine |
DE19728100A1 (de) * | 1997-07-02 | 1999-01-07 | Schaeffler Waelzlager Ohg | Stößel für einen Ventiltrieb einer Brennkraftmaschine |
WO1999036677A1 (en) * | 1998-01-19 | 1999-07-22 | Darut Pty. Ltd. | Cam and cam followers for engines |
Family Cites Families (8)
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 |
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 |
FR2661211B1 (fr) * | 1990-04-24 | 1992-08-14 | Peugeot | Dispositif d'actionnement de deux soupapes voisines. |
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 |
EP0867601B1 (de) * | 1997-03-27 | 2003-01-22 | Toyota Jidosha Kabushiki Kaisha | Ventilsteuerung für eine Brennkraftmaschine |
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 EP EP02009538A patent/EP1260679B1/de not_active Expired - Lifetime
- 2002-04-26 DE DE50202197T patent/DE50202197D1/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
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2663288A (en) * | 1952-09-02 | 1953-12-22 | Loyd F Ashley | Variable timing cam follower |
EP0292185A2 (de) * | 1987-05-21 | 1988-11-23 | Jaguar Cars Limited | Nockenvorrichtungen |
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 |
EP0719909A1 (de) * | 1994-12-22 | 1996-07-03 | FIAT AUTO S.p.A. | Ventilsteuerungsvorrichtung einer Brennkraftmaschine |
US5823151A (en) * | 1995-04-26 | 1998-10-20 | Ina Walzlager Schaeffler Kg | Valve gear cam follower in an internal combustion engine |
DE19728100A1 (de) * | 1997-07-02 | 1999-01-07 | Schaeffler Waelzlager Ohg | Stößel für einen Ventiltrieb einer Brennkraftmaschine |
WO1999036677A1 (en) * | 1998-01-19 | 1999-07-22 | Darut Pty. Ltd. | Cam and cam followers for engines |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1600609A3 (de) * | 2004-05-25 | 2008-10-15 | Schaeffler KG | Tassenstössel eines Ventiltriebs einer Brennkraftmaschine |
WO2012013376A1 (de) * | 2010-07-26 | 2012-02-02 | Schaeffler Technologies Gmbh & Co. Kg | Tassenstössel und verfahren zu dessen herstellung |
Also Published As
Publication number | Publication date |
---|---|
EP1260679B1 (de) | 2005-02-09 |
DE50202197D1 (de) | 2005-03-17 |
EP1260679A3 (de) | 2003-08-13 |
JP2003003806A (ja) | 2003-01-08 |
US20020170516A1 (en) | 2002-11-21 |
US6622679B2 (en) | 2003-09-23 |
JP4180302B2 (ja) | 2008-11-12 |
DE10123966A1 (de) | 2002-11-21 |
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