EP1260679A3 - Tappet in a combustion engine - Google Patents

Tappet in a combustion engine Download PDF

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Publication number
EP1260679A3
EP1260679A3 EP02009538A EP02009538A EP1260679A3 EP 1260679 A3 EP1260679 A3 EP 1260679A3 EP 02009538 A EP02009538 A EP 02009538A EP 02009538 A EP02009538 A EP 02009538A EP 1260679 A3 EP1260679 A3 EP 1260679A3
Authority
EP
European Patent Office
Prior art keywords
tappet
combustion engine
face
shirt
tappets
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)
French (fr)
Other versions
EP1260679B1 (en
EP1260679A2 (en
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/en
Publication of EP1260679A3 publication Critical patent/EP1260679A3/en
Application granted granted Critical
Publication of EP1260679B1 publication Critical patent/EP1260679B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Vorgeschlagen ist ein 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. Dabei besitzt das Hemd (2) erfindungsgemäß eine deutlich geringere Höhe als der Tassenstößel (1) insgesamt, wobei der Boden (5) dachartig verjüngt von der Stirnseite (3) abgehoben ist.Proposed is a tappet (1) for a valve train of an internal combustion engine, with a hollow cylindrical shirt (2), whose one end face (3) with a bottom (5) is connected for a cam contact. It owns that Shirt (2) according to the invention a significantly lower height than the tappets (1) in total, wherein the bottom (5) tapers like a roof from the end face (3) is lifted off.

Aufgrund dieser Ausbildung liegt ein sehr steifer Boden (5) vor, wodurch es gelingt, dessen Dicke (d) signifikant gegenüber bisherig ausgeführten Bodendicken zu minimieren.

Figure 00000001
Due to this design, a very rigid bottom (5) is present, which makes it possible to minimize its thickness (d) significantly compared to previously executed floor thicknesses.
Figure 00000001
EP02009538A 2001-05-17 2002-04-26 Tappet in a combustion engine Expired - Lifetime EP1260679B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10123966A DE10123966A1 (en) 2001-05-17 2001-05-17 Bucket tappet for valve drive has jacket with appreciably lower height than bucket tappet as whole
DE10123966 2001-05-17

Publications (3)

Publication Number Publication Date
EP1260679A2 EP1260679A2 (en) 2002-11-27
EP1260679A3 true EP1260679A3 (en) 2003-08-13
EP1260679B1 EP1260679B1 (en) 2005-02-09

Family

ID=7685093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009538A Expired - Lifetime EP1260679B1 (en) 2001-05-17 2002-04-26 Tappet in a combustion engine

Country Status (4)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3593081B2 (en) * 2001-10-02 2004-11-24 三菱電機株式会社 Fuel supply device
DE102004025532A1 (en) * 2004-05-25 2005-12-15 Ina-Schaeffler Kg Cup tappet of a valve train of an internal combustion engine
DE102004056458A1 (en) * 2004-11-23 2006-06-14 Schaeffler Kg tappets
DE102004056457A1 (en) 2004-11-23 2006-06-08 Schaeffler Kg Cup tappets for an internal combustion engine
DE102004058766A1 (en) 2004-12-07 2006-06-08 Schaeffler Kg Bucket tappet for internal combustion engine has torsional stop element having wall with front surface supported radially inwards along outer lateral surface of cover and runs circumferentially along longitudinal axis of torsional stop
DE102010032254A1 (en) * 2010-07-26 2012-01-26 Schaeffler Technologies Gmbh & Co. Kg Cup tappets and method for its production
DE102013211279A1 (en) 2013-06-17 2014-12-18 Schaeffler Technologies Gmbh & Co. Kg Cup tappets for the valve train of an internal combustion engine
DE102014216961A1 (en) * 2014-08-26 2016-03-03 Schaeffler Technologies AG & Co. KG Cup tappets and method for its production
DE102015215272A1 (en) 2015-08-11 2017-02-16 Schaeffler Technologies AG & Co. KG Cup tappets for a valve train of an internal combustion engine

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 (en) * 1987-05-21 1988-11-23 Jaguar Cars Limited Cam mechanisms
DE4118370A1 (en) * 1991-06-05 1992-12-10 Bayerische Motoren Werke Ag Positively locked valve tappet - has form-closed fitting inserted into a recess in tappet wall
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 (en) * 1994-12-22 1996-07-03 FIAT AUTO S.p.A. A valve control system for an internal combustion engine
US5823151A (en) * 1995-04-26 1998-10-20 Ina Walzlager Schaeffler Kg Valve gear cam follower in an internal combustion engine
DE19728100A1 (en) * 1997-07-02 1999-01-07 Schaeffler Waelzlager Ohg Pushrod for IC engine valve drive
WO1999036677A1 (en) * 1998-01-19 1999-07-22 Darut Pty. Ltd. Cam and cam followers for engines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR454518A (en) 1913-02-18 1913-07-07 Leon Guillaume Improvement in the layout and construction of the organs that open the doors by moving an air column
US3238933A (en) * 1964-05-25 1966-03-08 Johnson Products Inc Tappet
DE3445823A1 (en) * 1984-12-15 1986-06-26 Bayerische Motoren Werke AG, 8000 München Valve timing gear, especially for internal combustion engines
FR2661211B1 (en) * 1990-04-24 1992-08-14 Peugeot DEVICE FOR ACTUATING TWO NEIGHBORING VALVES.
US5226389A (en) * 1992-11-04 1993-07-13 Eaton Corporation Direct acting tappet
DE4325610A1 (en) * 1993-07-30 1995-02-02 Schaeffler Waelzlager Kg Cup-shaped valve lifter
EP1164258A3 (en) * 1997-03-27 2003-01-02 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 (en) * 1987-05-21 1988-11-23 Jaguar Cars Limited Cam mechanisms
DE4118370A1 (en) * 1991-06-05 1992-12-10 Bayerische Motoren Werke Ag Positively locked valve tappet - has form-closed fitting inserted into a recess in tappet wall
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 (en) * 1994-12-22 1996-07-03 FIAT AUTO S.p.A. A valve control system for an internal combustion engine
US5823151A (en) * 1995-04-26 1998-10-20 Ina Walzlager Schaeffler Kg Valve gear cam follower in an internal combustion engine
DE19728100A1 (en) * 1997-07-02 1999-01-07 Schaeffler Waelzlager Ohg Pushrod for IC engine valve drive
WO1999036677A1 (en) * 1998-01-19 1999-07-22 Darut Pty. Ltd. Cam and cam followers for engines

Also Published As

Publication number Publication date
JP4180302B2 (en) 2008-11-12
EP1260679B1 (en) 2005-02-09
DE50202197D1 (en) 2005-03-17
JP2003003806A (en) 2003-01-08
EP1260679A2 (en) 2002-11-27
US20020170516A1 (en) 2002-11-21
US6622679B2 (en) 2003-09-23
DE10123966A1 (en) 2002-11-21

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