GB1496513A - Valve operating mechanisms for internal combustion engine - Google Patents

Valve operating mechanisms for internal combustion engine

Info

Publication number
GB1496513A
GB1496513A GB1019874A GB1019874A GB1496513A GB 1496513 A GB1496513 A GB 1496513A GB 1019874 A GB1019874 A GB 1019874A GB 1019874 A GB1019874 A GB 1019874A GB 1496513 A GB1496513 A GB 1496513A
Authority
GB
United Kingdom
Prior art keywords
valve
interposing
combustion engine
internal combustion
valve operating
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
GB1019874A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1019874A priority Critical patent/GB1496513A/en
Publication of GB1496513A publication Critical patent/GB1496513A/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
    • 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
    • F01L13/0063—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 by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot

Abstract

1496513 Altering valve timing in IC engines G G SCARROTT 3 Feb 1975 [7 March 1974] 10198/74 Heading F1B [Also in Division F2] The timing of I.C. engine inlet and/or outlet valves is varied by interposing between a cam 2 and the end of a push-rod or valve stem 1 a member 3 which is eccentrically pivotal about an axis 10. Depending upon the shape of the interposing member 3, e.g. by the provision of an inclined surface 8, the opening and/or closing instant of a valve may be advanced or retarded. A constant thickness interposing member may be employed to ensure that the valve stroke remains constant. The position of the interposing member is adjusted by an electric or hydraulic servomotor (not shown) in accordance with engine load, by rotating about the pivot axis 10.
GB1019874A 1975-02-03 1975-02-03 Valve operating mechanisms for internal combustion engine Expired GB1496513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1019874A GB1496513A (en) 1975-02-03 1975-02-03 Valve operating mechanisms for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1019874A GB1496513A (en) 1975-02-03 1975-02-03 Valve operating mechanisms for internal combustion engine

Publications (1)

Publication Number Publication Date
GB1496513A true GB1496513A (en) 1977-12-30

Family

ID=9963374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1019874A Expired GB1496513A (en) 1975-02-03 1975-02-03 Valve operating mechanisms for internal combustion engine

Country Status (1)

Country Link
GB (1) GB1496513A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041864A1 (en) * 1980-11-06 1982-05-13 Audi Nsu Auto Union Ag, 7107 Neckarsulm Valve timing adjuster for IC engine - has curved spacer piece between overhead camshaft and valve stem
DE3106787A1 (en) * 1981-02-24 1982-09-09 Audi Nsu Auto Union Ag, 7107 Neckarsulm Multicylinder reciprocating piston internal combustion engine with a device for shutting off lifting valves
GB2134596A (en) * 1983-02-04 1984-08-15 Fev Forsch Energietech Verbr Fresh charge intake quantity control in an internal combustion engine
GB2144176A (en) * 1983-06-17 1985-02-27 Robert George Doorbar A system optimising the timing/lifting functions of cams
US4869215A (en) * 1987-05-21 1989-09-26 Jaguar Cars Limited Cam mechanisms
GB2253439A (en) * 1990-12-18 1992-09-09 M K Saul Variable valve timing mechanism
WO1992019846A1 (en) * 1991-04-25 1992-11-12 Gerald Beaumont Mechanism for controlling engine valve timing
US5269267A (en) * 1991-04-25 1993-12-14 Gerald Beaumont Mechanism for controlling valve timing
WO1998036157A1 (en) * 1997-02-13 1998-08-20 Headstrong Design Pty Ltd Adjustment mechanism for valves
GB2341222A (en) * 1998-09-02 2000-03-08 Bosch Gmbh Robert Adjusting unit

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041864A1 (en) * 1980-11-06 1982-05-13 Audi Nsu Auto Union Ag, 7107 Neckarsulm Valve timing adjuster for IC engine - has curved spacer piece between overhead camshaft and valve stem
DE3106787A1 (en) * 1981-02-24 1982-09-09 Audi Nsu Auto Union Ag, 7107 Neckarsulm Multicylinder reciprocating piston internal combustion engine with a device for shutting off lifting valves
GB2134596A (en) * 1983-02-04 1984-08-15 Fev Forsch Energietech Verbr Fresh charge intake quantity control in an internal combustion engine
GB2144176A (en) * 1983-06-17 1985-02-27 Robert George Doorbar A system optimising the timing/lifting functions of cams
US4869215A (en) * 1987-05-21 1989-09-26 Jaguar Cars Limited Cam mechanisms
GB2253439A (en) * 1990-12-18 1992-09-09 M K Saul Variable valve timing mechanism
WO1992019846A1 (en) * 1991-04-25 1992-11-12 Gerald Beaumont Mechanism for controlling engine valve timing
US5165370A (en) * 1991-04-25 1992-11-24 Gerald Beaumont Mechanism for controlling valve timing
US5269267A (en) * 1991-04-25 1993-12-14 Gerald Beaumont Mechanism for controlling valve timing
WO1998036157A1 (en) * 1997-02-13 1998-08-20 Headstrong Design Pty Ltd Adjustment mechanism for valves
CN1095924C (en) * 1997-02-13 2002-12-11 黑德斯特朗设计有限公司 Adjustment mechanism for valve
GB2341222A (en) * 1998-09-02 2000-03-08 Bosch Gmbh Robert Adjusting unit
GB2341222B (en) * 1998-09-02 2001-04-11 Bosch Gmbh Robert Adjusting unit
US6364283B1 (en) 1998-09-02 2002-04-02 Robert Bosch Gmbh Actuator unit with a deflection device

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Legal Events

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