GB8925855D0 - A mechanism to vary the valve timing in an internal combustion engine - Google Patents

A mechanism to vary the valve timing in an internal combustion engine

Info

Publication number
GB8925855D0
GB8925855D0 GB898925855A GB8925855A GB8925855D0 GB 8925855 D0 GB8925855 D0 GB 8925855D0 GB 898925855 A GB898925855 A GB 898925855A GB 8925855 A GB8925855 A GB 8925855A GB 8925855 D0 GB8925855 D0 GB 8925855D0
Authority
GB
United Kingdom
Prior art keywords
vary
combustion engine
internal combustion
valve timing
timing
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.)
Granted
Application number
GB898925855A
Other versions
GB2238348A (en
GB2238348B (en
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.)
MG Rover Group Ltd
Original Assignee
MG Rover Group 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 MG Rover Group Ltd filed Critical MG Rover Group Ltd
Priority to GB8925855A priority Critical patent/GB2238348B/en
Publication of GB8925855D0 publication Critical patent/GB8925855D0/en
Publication of GB2238348A publication Critical patent/GB2238348A/en
Application granted granted Critical
Publication of GB2238348B publication Critical patent/GB2238348B/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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/348—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear by means acting on timing belts or chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/008—Gearings or mechanisms with other special functional features for variation of rotational phase relationship, e.g. angular relationship between input and output shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
GB8925855A 1989-11-15 1989-11-15 A mechanism to vary the valve timing in an internal combustion engine Expired - Fee Related GB2238348B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8925855A GB2238348B (en) 1989-11-15 1989-11-15 A mechanism to vary the valve timing in an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8925855A GB2238348B (en) 1989-11-15 1989-11-15 A mechanism to vary the valve timing in an internal combustion engine

Publications (3)

Publication Number Publication Date
GB8925855D0 true GB8925855D0 (en) 1990-01-04
GB2238348A GB2238348A (en) 1991-05-29
GB2238348B GB2238348B (en) 1993-09-22

Family

ID=10666373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8925855A Expired - Fee Related GB2238348B (en) 1989-11-15 1989-11-15 A mechanism to vary the valve timing in an internal combustion engine

Country Status (1)

Country Link
GB (1) GB2238348B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1515767A (en) * 1966-10-20 1968-03-01 Device automatically correcting the distribution in four-stroke engines
GB8712945D0 (en) * 1987-06-25 1987-07-08 Stidworthy F M Variable valves
US4862845A (en) * 1988-05-10 1989-09-05 Borg-Warner Transmission And Engine Components Corporation Variable camshaft timing system

Also Published As

Publication number Publication date
GB2238348A (en) 1991-05-29
GB2238348B (en) 1993-09-22

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Legal Events

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

Effective date: 19991115