EP1260679A2 - Poussoir de moteur à combustion interne - Google Patents

Poussoir de moteur à combustion interne Download PDF

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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
Application number
EP02009538A
Other languages
German (de)
English (en)
Other versions
EP1260679A3 (fr
EP1260679B1 (fr
Inventor
Werner Bretting
Hans Mönius
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
IHO Holding GmbH and Co KG
Original Assignee
INA Schaeffler KG
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
Application filed by INA Schaeffler KG filed Critical INA Schaeffler KG
Publication of EP1260679A2 publication Critical patent/EP1260679A2/fr
Publication of EP1260679A3 publication Critical patent/EP1260679A3/fr
Application granted granted Critical
Publication of EP1260679B1 publication Critical patent/EP1260679B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
EP02009538A 2001-05-17 2002-04-26 Poussoir de moteur à combustion interne Expired - Lifetime EP1260679B1 (fr)

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 (fr) 2002-11-27
EP1260679A3 EP1260679A3 (fr) 2003-08-13
EP1260679B1 EP1260679B1 (fr) 2005-02-09

Family

ID=7685093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009538A Expired - Lifetime EP1260679B1 (fr) 2001-05-17 2002-04-26 Poussoir de moteur à combustion interne

Country Status (4)

Country Link
US (1) US6622679B2 (fr)
EP (1) EP1260679B1 (fr)
JP (1) JP4180302B2 (fr)
DE (2) DE10123966A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1600609A3 (fr) * 2004-05-25 2008-10-15 Schaeffler KG Poussoir de soupape pour moteur à combustion interne
WO2012013376A1 (fr) * 2010-07-26 2012-02-02 Schaeffler Technologies Gmbh & Co. Kg Poussoir à coupelle et procédé pour sa fabrication

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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
DE102004056458A1 (de) * 2004-11-23 2006-06-14 Schaeffler Kg Tassenstößel
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
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663288A (en) * 1952-09-02 1953-12-22 Loyd F Ashley Variable timing cam follower
EP0292185A2 (fr) * 1987-05-21 1988-11-23 Jaguar Cars Limited Mécanismes à came
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 (fr) * 1994-12-22 1996-07-03 FIAT AUTO S.p.A. Dispositif de commande de soupape pour moteurs à combustion interne
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 (fr) * 1998-01-19 1999-07-22 Darut Pty. Ltd. Cames et suiveurs de cames de moteurs

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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
US5988128A (en) * 1997-03-27 1999-11-23 Toyota Jidosha Kabushiki Kaisha Valve driving apparatus for engine
US6021751A (en) * 1999-02-18 2000-02-08 General Motors Corporation Hydraulic valve lifter with lash

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663288A (en) * 1952-09-02 1953-12-22 Loyd F Ashley Variable timing cam follower
EP0292185A2 (fr) * 1987-05-21 1988-11-23 Jaguar Cars Limited Mécanismes à came
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 (fr) * 1994-12-22 1996-07-03 FIAT AUTO S.p.A. Dispositif de commande de soupape pour moteurs à combustion interne
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 (fr) * 1998-01-19 1999-07-22 Darut Pty. Ltd. Cames et suiveurs de cames de moteurs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1600609A3 (fr) * 2004-05-25 2008-10-15 Schaeffler KG Poussoir de soupape pour moteur à combustion interne
WO2012013376A1 (fr) * 2010-07-26 2012-02-02 Schaeffler Technologies Gmbh & Co. Kg Poussoir à coupelle et procédé pour sa fabrication

Also Published As

Publication number Publication date
DE10123966A1 (de) 2002-11-21
US20020170516A1 (en) 2002-11-21
JP2003003806A (ja) 2003-01-08
DE50202197D1 (de) 2005-03-17
EP1260679A3 (fr) 2003-08-13
JP4180302B2 (ja) 2008-11-12
EP1260679B1 (fr) 2005-02-09
US6622679B2 (en) 2003-09-23

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