DE60114501D1 - Method and device for a two-stage cam profile change - Google Patents

Method and device for a two-stage cam profile change

Info

Publication number
DE60114501D1
DE60114501D1 DE60114501T DE60114501T DE60114501D1 DE 60114501 D1 DE60114501 D1 DE 60114501D1 DE 60114501 T DE60114501 T DE 60114501T DE 60114501 T DE60114501 T DE 60114501T DE 60114501 D1 DE60114501 D1 DE 60114501D1
Authority
DE
Germany
Prior art keywords
cam profile
profile change
stage cam
stage
change
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
DE60114501T
Other languages
German (de)
Other versions
DE60114501T2 (en
Inventor
Mark J Spath
Hermes A Fernandez
Nick J Hendriksma
Jongmin Lee
Wayne S Harris
Ryan D Fogarty
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of DE60114501D1 publication Critical patent/DE60114501D1/en
Application granted granted Critical
Publication of DE60114501T2 publication Critical patent/DE60114501T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • 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
    • F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
DE60114501T 2000-04-26 2001-04-25 Method and device for a two-stage cam profile change Expired - Fee Related DE60114501T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19971600P 2000-04-26 2000-04-26
US199716P 2000-04-26

Publications (2)

Publication Number Publication Date
DE60114501D1 true DE60114501D1 (en) 2005-12-08
DE60114501T2 DE60114501T2 (en) 2006-04-27

Family

ID=22738725

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60114501T Expired - Fee Related DE60114501T2 (en) 2000-04-26 2001-04-25 Method and device for a two-stage cam profile change

Country Status (2)

Country Link
EP (1) EP1149988B1 (en)
DE (1) DE60114501T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017100966A1 (en) 2016-03-21 2017-09-21 Schaeffler Technologies AG & Co. KG Nockenumschaltanordnung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0206425A (en) * 2001-11-14 2003-12-30 Ina Schaeffler Kg Drag lever of a valve mechanism of an internal combustion engine
WO2003042507A1 (en) * 2001-11-14 2003-05-22 Ina-Schaeffler Kg Cam follower of a valve gear of an internal combustion engine
US6758180B2 (en) * 2001-12-04 2004-07-06 Delphi Technologies, Inc. Pinless roller finger follower
EP1725744B1 (en) 2004-03-03 2008-05-28 Timken US Corporation Switching finger follower assembly
US20080245330A1 (en) * 2005-09-16 2008-10-09 Timken Us Corporation Switching Finger Follower Assembly
US20090126527A1 (en) * 2007-11-21 2009-05-21 Bauman William D Bearing design for a roller finger follower
DE102010011828A1 (en) 2010-03-18 2011-09-22 Schaeffler Technologies Gmbh & Co. Kg Switchable lever for a valve train of an internal combustion engine
EP2653673A1 (en) 2012-04-19 2013-10-23 Eaton S.r.l. A switchable rocker arm
DE102015015087A1 (en) 2015-11-20 2017-05-24 Man Truck & Bus Ag Variable valve train with a rocker arm

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04143409A (en) * 1990-10-03 1992-05-18 Nissan Motor Co Ltd Variable valve system for internal combustion engine
JPH0571318A (en) * 1991-09-11 1993-03-23 Nissan Motor Co Ltd Rocker arm of internal combustion engine
JP3319794B2 (en) * 1993-01-18 2002-09-03 本田技研工業株式会社 SOHC type valve train for internal combustion engine
DE9406190U1 (en) * 1994-04-14 1994-06-09 Schaeffler Waelzlager Kg Device for the simultaneous actuation of at least two gas exchange valves
FR2731043B1 (en) * 1995-02-24 1997-04-04 Renault VARIABLE DISTRIBUTION DEVICE FOR INTERNAL COMBUSTION ENGINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017100966A1 (en) 2016-03-21 2017-09-21 Schaeffler Technologies AG & Co. KG Nockenumschaltanordnung

Also Published As

Publication number Publication date
EP1149988A3 (en) 2001-11-14
DE60114501T2 (en) 2006-04-27
EP1149988A2 (en) 2001-10-31
EP1149988B1 (en) 2005-11-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee