GB2272022B - Cam mechanisms - Google Patents

Cam mechanisms

Info

Publication number
GB2272022B
GB2272022B GB9320015A GB9320015A GB2272022B GB 2272022 B GB2272022 B GB 2272022B GB 9320015 A GB9320015 A GB 9320015A GB 9320015 A GB9320015 A GB 9320015A GB 2272022 B GB2272022 B GB 2272022B
Authority
GB
United Kingdom
Prior art keywords
cam mechanisms
cam
mechanisms
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 - Lifetime
Application number
GB9320015A
Other versions
GB2272022A (en
GB9320015D0 (en
Inventor
Jeffrey Allen
Clive Dopson
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.)
Lotus Cars Ltd
Original Assignee
Lotus Cars 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 Lotus Cars Ltd filed Critical Lotus Cars Ltd
Publication of GB9320015D0 publication Critical patent/GB9320015D0/en
Publication of GB2272022A publication Critical patent/GB2272022A/en
Application granted granted Critical
Publication of GB2272022B publication Critical patent/GB2272022B/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
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
GB9320015A 1992-09-30 1993-09-28 Cam mechanisms Expired - Lifetime GB2272022B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929220624A GB9220624D0 (en) 1992-09-30 1992-09-30 Cam mechanisms

Publications (3)

Publication Number Publication Date
GB9320015D0 GB9320015D0 (en) 1993-11-17
GB2272022A GB2272022A (en) 1994-05-04
GB2272022B true GB2272022B (en) 1995-10-04

Family

ID=10722758

Family Applications (2)

Application Number Title Priority Date Filing Date
GB929220624A Pending GB9220624D0 (en) 1992-09-30 1992-09-30 Cam mechanisms
GB9320015A Expired - Lifetime GB2272022B (en) 1992-09-30 1993-09-28 Cam mechanisms

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB929220624A Pending GB9220624D0 (en) 1992-09-30 1992-09-30 Cam mechanisms

Country Status (1)

Country Link
GB (2) GB9220624D0 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8161929B2 (en) 2007-11-21 2012-04-24 Schaeffler Kg Switchable tappet
USRE44864E1 (en) 2001-09-19 2014-04-29 Ina Schaeffler Kg Switching element for a valve train of an internal combustion engine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9401248D0 (en) * 1994-01-24 1994-03-23 Lotus Car Cam mechanisms
DE19630776A1 (en) * 1996-07-31 1998-02-05 Schaeffler Waelzlager Kg Valve control device for IC engine
US6321704B1 (en) * 1999-02-23 2001-11-27 Eaton Corporation Hydraulically actuated latching valve deactivation
ATE300665T1 (en) 2002-02-06 2005-08-15 Ina Schaeffler Kg SWITCHING ELEMENT FOR A VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE
DE102007011893A1 (en) * 2007-03-13 2008-09-18 Schaeffler Kg Switchable support element for a valve train of an internal combustion engine
CN103233779B (en) * 2013-05-08 2015-05-20 祥天控股（集团）有限公司 Air intake and exhaust structure of rotary type engine
CN114502822B (en) * 2019-09-13 2023-05-23 伊顿智能动力有限公司 Double latch pin III-shaped rocker arm assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151817A (en) * 1976-12-15 1979-05-01 Eaton Corporation Engine valve control mechanism
WO1991012415A1 (en) * 1990-02-16 1991-08-22 Group Lotus Plc Cam mechanisms

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151817A (en) * 1976-12-15 1979-05-01 Eaton Corporation Engine valve control mechanism
WO1991012415A1 (en) * 1990-02-16 1991-08-22 Group Lotus Plc Cam mechanisms

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE44864E1 (en) 2001-09-19 2014-04-29 Ina Schaeffler Kg Switching element for a valve train of an internal combustion engine
US8161929B2 (en) 2007-11-21 2012-04-24 Schaeffler Kg Switchable tappet

Also Published As

Publication number Publication date
GB9220624D0 (en) 1992-11-11
GB2272022A (en) 1994-05-04
GB9320015D0 (en) 1993-11-17

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20130927