GB2333322B - Cam mechanism - Google Patents

Cam mechanism

Info

Publication number
GB2333322B
GB2333322B GB9800679A GB9800679A GB2333322B GB 2333322 B GB2333322 B GB 2333322B GB 9800679 A GB9800679 A GB 9800679A GB 9800679 A GB9800679 A GB 9800679A GB 2333322 B GB2333322 B GB 2333322B
Authority
GB
United Kingdom
Prior art keywords
cam mechanism
cam
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
GB9800679A
Other versions
GB2333322A (en
GB9800679D0 (en
Inventor
Jeffrey Allen
Paul Burke
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
Priority to GB9800679A priority Critical patent/GB2333322B/en
Publication of GB9800679D0 publication Critical patent/GB9800679D0/en
Publication of GB2333322A publication Critical patent/GB2333322A/en
Application granted granted Critical
Publication of GB2333322B publication Critical patent/GB2333322B/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
    • F01L1/20—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
    • F01L1/2411—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the valve stem and rocker arm
    • 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
    • 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
GB9800679A 1998-01-13 1998-01-13 Cam mechanism Expired - Fee Related GB2333322B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9800679A GB2333322B (en) 1998-01-13 1998-01-13 Cam mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9800679A GB2333322B (en) 1998-01-13 1998-01-13 Cam mechanism

Publications (3)

Publication Number Publication Date
GB9800679D0 GB9800679D0 (en) 1998-03-11
GB2333322A GB2333322A (en) 1999-07-21
GB2333322B true GB2333322B (en) 2000-03-15

Family

ID=10825225

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9800679A Expired - Fee Related GB2333322B (en) 1998-01-13 1998-01-13 Cam mechanism

Country Status (1)

Country Link
GB (1) GB2333322B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107701253A (en) * 2017-10-11 2018-02-16 安徽江淮汽车集团股份有限公司 A kind of rocker arm body

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348246B (en) * 1999-03-25 2002-11-13 Ricardo Inc Automotive valve rocker arms
US6769387B2 (en) * 2002-10-19 2004-08-03 General Motors Corporation Compact two-step rocker arm assembly
DE10257705A1 (en) * 2002-12-11 2004-06-24 Ina-Schaeffler Kg Valve lever for valve train of internal combustion engine has outer lever enclosing inner lever with arms and swiveled away from it when decoupled
US20050188930A1 (en) * 2004-02-18 2005-09-01 Best Richard R. Valve deactivation device
US7823549B2 (en) 2007-08-01 2010-11-02 Gm Global Technology Operations, Inc. Switchable valvetrain system and method of operation
CN108167044B (en) * 2017-12-28 2020-09-29 潍柴动力股份有限公司 Valve rocker arm assembly, variable valve mechanism and engine
US11566544B2 (en) 2018-08-09 2023-01-31 Eaton Intelligent Power Limited Rocker arm assembly with lost motion spring
EP3833855A1 (en) * 2018-08-09 2021-06-16 Eaton Intelligent Power Limited Deactivating rocker arm having two-stage latch pin
EP4028648A1 (en) * 2019-09-13 2022-07-20 Eaton Intelligent Power Limited Dual latch pin type iii rocker arm assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556025A (en) * 1983-11-18 1985-12-03 Mazda Motor Corporation Engine valve mechanism having valve disabling device
GB2309489A (en) * 1996-01-16 1997-07-30 Ford Motor Co I.c. engine finger follower rocker arm system for selectively deactivating valves
GB2310002A (en) * 1996-02-10 1997-08-13 Daimler Benz Ag Device for the operation of valves of an internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556025A (en) * 1983-11-18 1985-12-03 Mazda Motor Corporation Engine valve mechanism having valve disabling device
GB2309489A (en) * 1996-01-16 1997-07-30 Ford Motor Co I.c. engine finger follower rocker arm system for selectively deactivating valves
GB2310002A (en) * 1996-02-10 1997-08-13 Daimler Benz Ag Device for the operation of valves of an internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107701253A (en) * 2017-10-11 2018-02-16 安徽江淮汽车集团股份有限公司 A kind of rocker arm body
CN107701253B (en) * 2017-10-11 2019-08-06 安徽江淮汽车集团股份有限公司 A kind of rocker arm body

Also Published As

Publication number Publication date
GB2333322A (en) 1999-07-21
GB9800679D0 (en) 1998-03-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20150113