GB2190140B - Valve lift mechanism - Google Patents

Valve lift mechanism

Info

Publication number
GB2190140B
GB2190140B GB8628154A GB8628154A GB2190140B GB 2190140 B GB2190140 B GB 2190140B GB 8628154 A GB8628154 A GB 8628154A GB 8628154 A GB8628154 A GB 8628154A GB 2190140 B GB2190140 B GB 2190140B
Authority
GB
United Kingdom
Prior art keywords
valve lift
lift mechanism
valve
lift
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
Application number
GB8628154A
Other versions
GB8628154D0 (en
GB2190140A (en
Inventor
Christopher Paulet Mel Walters
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.)
CHRIS WALTERS
Original Assignee
CHRIS WALTERS
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 CHRIS WALTERS filed Critical CHRIS WALTERS
Publication of GB8628154D0 publication Critical patent/GB8628154D0/en
Priority to PCT/GB1987/000290 priority Critical patent/WO1987006647A1/en
Priority to EP19870902641 priority patent/EP0265479A1/en
Publication of GB2190140A publication Critical patent/GB2190140A/en
Application granted granted Critical
Publication of GB2190140B publication Critical patent/GB2190140B/en
Expired 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
    • 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
    • F01L13/0042—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 with cams being profiled in axial and radial direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
GB8628154A 1986-05-01 1986-11-25 Valve lift mechanism Expired GB2190140B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/GB1987/000290 WO1987006647A1 (en) 1986-05-01 1987-05-01 Valve-control mechanism
EP19870902641 EP0265479A1 (en) 1986-05-01 1987-05-01 Valve-control mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868610727A GB8610727D0 (en) 1986-05-01 1986-05-01 Valve lift mechanism

Publications (3)

Publication Number Publication Date
GB8628154D0 GB8628154D0 (en) 1986-12-31
GB2190140A GB2190140A (en) 1987-11-11
GB2190140B true GB2190140B (en) 1989-12-06

Family

ID=10597215

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868610727A Pending GB8610727D0 (en) 1986-05-01 1986-05-01 Valve lift mechanism
GB8628154A Expired GB2190140B (en) 1986-05-01 1986-11-25 Valve lift mechanism

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868610727A Pending GB8610727D0 (en) 1986-05-01 1986-05-01 Valve lift mechanism

Country Status (1)

Country Link
GB (2) GB8610727D0 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001071167A1 (en) 2000-03-21 2001-09-27 Walters Christopher Paulet Mel Valve control mechanism
WO2001088345A1 (en) 2000-05-17 2001-11-22 Walters Christopher Paulet Mel Valve control mechanism

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6220899A (en) 1998-10-30 2000-05-22 Christopher Paulet Melmoth Walters Valve control mechanism
GB2359608B (en) * 1998-10-30 2002-06-19 Christopher Paulet Mel Walters Engine with offset cam follower-valve stem arrangement
GB0107892D0 (en) 2001-03-29 2001-05-23 Walters Christopher P M Valve control mechanism and engines containing same
WO2005003524A1 (en) 2003-06-30 2005-01-13 Walters Christopher Paulet Mel Valve gear
IT1391257B1 (en) * 2008-10-16 2011-12-01 Piaggio & C Spa ELECTRO-HYDRAULIC DEVICE FOR THE VARIATION OF THE PHASE AND OF THE LIFT OF THE VALVES IN AN INTERNAL COMBUSTION ENGINE
DE102015200101B3 (en) * 2015-01-08 2016-05-19 Schaeffler Technologies AG & Co. KG Sliding cam valve train

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB605242A (en) * 1945-02-09 1948-07-19 Saurer Ag Adolph Improvements in and relating to cam-actuated tappets
GB970161A (en) * 1960-12-07 1964-09-16 Thompson Ramo Wooldridge Inc Improvements in or relating to rocker arms and valve operating mechanisms
US3730150A (en) * 1971-10-20 1973-05-01 S Codner Method and apparatus for control of valve operation
GB1443421A (en) * 1972-04-07 1976-07-21 Hinderks M V Variable compression ration engine
GB1491966A (en) * 1974-04-02 1977-11-16 Peugeot Internal combustion engine having a variable valve timing
GB1505643A (en) * 1975-05-20 1978-03-30 British Leyland Uk Ltd Internal combustion engine
EP0091804A1 (en) * 1982-04-08 1983-10-19 Jeffrey Robert Parker Desmodromic valve system
EP0108238A1 (en) * 1982-10-12 1984-05-16 FIAT AUTO S.p.A. Tappet for internal combustion engines with variable profile camshafts

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB605242A (en) * 1945-02-09 1948-07-19 Saurer Ag Adolph Improvements in and relating to cam-actuated tappets
GB970161A (en) * 1960-12-07 1964-09-16 Thompson Ramo Wooldridge Inc Improvements in or relating to rocker arms and valve operating mechanisms
US3730150A (en) * 1971-10-20 1973-05-01 S Codner Method and apparatus for control of valve operation
GB1443421A (en) * 1972-04-07 1976-07-21 Hinderks M V Variable compression ration engine
GB1491966A (en) * 1974-04-02 1977-11-16 Peugeot Internal combustion engine having a variable valve timing
GB1505643A (en) * 1975-05-20 1978-03-30 British Leyland Uk Ltd Internal combustion engine
EP0091804A1 (en) * 1982-04-08 1983-10-19 Jeffrey Robert Parker Desmodromic valve system
EP0108238A1 (en) * 1982-10-12 1984-05-16 FIAT AUTO S.p.A. Tappet for internal combustion engines with variable profile camshafts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001071167A1 (en) 2000-03-21 2001-09-27 Walters Christopher Paulet Mel Valve control mechanism
WO2001088345A1 (en) 2000-05-17 2001-11-22 Walters Christopher Paulet Mel Valve control mechanism

Also Published As

Publication number Publication date
GB8628154D0 (en) 1986-12-31
GB2190140A (en) 1987-11-11
GB8610727D0 (en) 1986-06-04

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Legal Events

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

Effective date: 20061124