DE69613477T2 - cam follower - Google Patents

cam follower

Info

Publication number
DE69613477T2
DE69613477T2 DE69613477T DE69613477T DE69613477T2 DE 69613477 T2 DE69613477 T2 DE 69613477T2 DE 69613477 T DE69613477 T DE 69613477T DE 69613477 T DE69613477 T DE 69613477T DE 69613477 T2 DE69613477 T2 DE 69613477T2
Authority
DE
Germany
Prior art keywords
support post
side walls
valve
bridge piece
engagement
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 - Fee Related
Application number
DE69613477T
Other languages
German (de)
Other versions
DE69613477D1 (en
Inventor
Andrzej Calka
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.)
Sandco Automotive Ltd
Original Assignee
Sandco Automotive Ltd
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 Sandco Automotive Ltd filed Critical Sandco Automotive Ltd
Application granted granted Critical
Publication of DE69613477D1 publication Critical patent/DE69613477D1/en
Publication of DE69613477T2 publication Critical patent/DE69613477T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/20—Making machine elements valve parts
    • B21K1/205—Making machine elements valve parts rocker arms
    • 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
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements

Abstract

A finger follower arm (50) is provided for mounting on a support post (92) to transmit oscillatory motion from a cam to a poppet valve (91) to cause the valve (91) to move linearly between open and closed positions. The arm has a support post end (64) including a downwardly open domed socket (70) for engagement on the support post (92) and an upstanding peripheral wall (68). A tappet valve end (76) has a W-shaped cross-section and has a bridge piece (78) defining a downwardly open channel (84) having parallel side surfaces (86,88) and a downwardly facing bearing surface (90) between the side surfaces (86,88) for engagement with said poppet valve (91). A pair of upstanding spaced-apart side walls (72,74) extend between the support post end (64) and the tappet valve end (76) and blend into the peripheral wall (68) which extends continuously between the side walls (72,74) to rigidify the support post end (64). The bridge piece (78) and side walls (72,74) are separated by grooves (80,82) which combine with the bridge piece (78) and the side walls (72,74) to define the W-shaped cross-section. A method of manufacture is also described. <IMAGE>
DE69613477T 1996-12-18 1996-12-18 cam follower Expired - Fee Related DE69613477T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96120301A EP0849436B1 (en) 1996-12-18 1996-12-18 Finger follower arm

Publications (2)

Publication Number Publication Date
DE69613477D1 DE69613477D1 (en) 2001-07-26
DE69613477T2 true DE69613477T2 (en) 2002-04-25

Family

ID=8223508

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69613477T Expired - Fee Related DE69613477T2 (en) 1996-12-18 1996-12-18 cam follower

Country Status (4)

Country Link
EP (1) EP0849436B1 (en)
AT (1) ATE202404T1 (en)
DE (1) DE69613477T2 (en)
ES (1) ES2160203T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10218026A1 (en) * 2002-04-23 2003-11-20 Ina Schaeffler Kg Lever-type cam follower for valve train of engine, has one end narrower than rest of cam follower length, in which side walls at one end of cam follower have smaller mean wall thickness than over rest of cam follower length
DE102004018387A1 (en) * 2004-04-16 2005-11-03 Ina-Schaeffler Kg Impact-pressed lever for the valve control of a piston engine and method for its production
DE102006002996A1 (en) * 2006-01-21 2007-08-02 Schaeffler Kg Rocker arms made of sheet steel
DE102006002994A1 (en) * 2006-01-21 2007-08-02 Schaeffler Kg Lever-like cam follower

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE282142T1 (en) * 1999-04-26 2004-11-15 Delphi Tech Inc ROLLER FAG LEVER
DE10030341C2 (en) * 2000-06-20 2003-04-10 Ina Schaeffler Kg Process for producing a lever-like cam follower
JP2004025240A (en) * 2002-06-26 2004-01-29 Koyo Seiko Co Ltd Rocker arm and its production method
DE10330881A1 (en) * 2003-07-09 2005-01-27 Ina-Schaeffler Kg Method for producing an outer lever of a switchable rocker arm
DE102011076727A1 (en) 2011-05-30 2012-12-06 Schaeffler Technologies AG & Co. KG Rocker arm i.e. roller rocker arm, for variable valve train of combustion piston engine, has bars designed in stepped manner at inner walls, where distance between walls in inner region is less than that between walls in outer region

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016582A (en) * 1990-10-12 1991-05-21 Henley Manufacturing Holding Company, Inc. Rocker arm
KR960014920B1 (en) * 1992-01-07 1996-10-21 나까무라 유이찌 Roller rocker arm & process for manufacturing the same
US5372097A (en) * 1992-12-18 1994-12-13 Welles Manufacturing Self-lubricating cam follower
JP3306478B2 (en) * 1993-11-29 2002-07-24 光洋精工株式会社 Pressed rocker arm

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10218026A1 (en) * 2002-04-23 2003-11-20 Ina Schaeffler Kg Lever-type cam follower for valve train of engine, has one end narrower than rest of cam follower length, in which side walls at one end of cam follower have smaller mean wall thickness than over rest of cam follower length
DE102004018387A1 (en) * 2004-04-16 2005-11-03 Ina-Schaeffler Kg Impact-pressed lever for the valve control of a piston engine and method for its production
DE102006002996A1 (en) * 2006-01-21 2007-08-02 Schaeffler Kg Rocker arms made of sheet steel
DE102006002994A1 (en) * 2006-01-21 2007-08-02 Schaeffler Kg Lever-like cam follower
US7918200B2 (en) 2006-01-21 2011-04-05 Schaeffler Kg Sheet steel rocker arm

Also Published As

Publication number Publication date
EP0849436A1 (en) 1998-06-24
ATE202404T1 (en) 2001-07-15
EP0849436B1 (en) 2001-06-20
DE69613477D1 (en) 2001-07-26
ES2160203T3 (en) 2001-11-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: MEISSNER, BOLTE & PARTNER GBR, 80538 MUENCHEN

8339 Ceased/non-payment of the annual fee