GB2443690B - Retractable cam - Google Patents

Retractable cam

Info

Publication number
GB2443690B
GB2443690B GB0622278A GB0622278A GB2443690B GB 2443690 B GB2443690 B GB 2443690B GB 0622278 A GB0622278 A GB 0622278A GB 0622278 A GB0622278 A GB 0622278A GB 2443690 B GB2443690 B GB 2443690B
Authority
GB
United Kingdom
Prior art keywords
retractable cam
retractable
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
GB0622278A
Other versions
GB0622278D0 (en
GB2443690A (en
Inventor
Anthony Edgar Blackburn
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 GB0622278A priority Critical patent/GB2443690B/en
Publication of GB0622278D0 publication Critical patent/GB0622278D0/en
Publication of GB2443690A publication Critical patent/GB2443690A/en
Application granted granted Critical
Publication of GB2443690B publication Critical patent/GB2443690B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01L1/36—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle
    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
    • F02B69/06—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different cycles, e.g. convertible from two-stroke to four stroke
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L2001/0471—Assembled camshafts
    • F01L2001/0473—Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B75/021—Engines characterised by their cycles, e.g. six-stroke having six or more strokes per cycle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve Device For Special Equipments (AREA)
GB0622278A 2006-11-09 2006-11-09 Retractable cam Expired - Fee Related GB2443690B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0622278A GB2443690B (en) 2006-11-09 2006-11-09 Retractable cam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0622278A GB2443690B (en) 2006-11-09 2006-11-09 Retractable cam

Publications (3)

Publication Number Publication Date
GB0622278D0 GB0622278D0 (en) 2006-12-20
GB2443690A GB2443690A (en) 2008-05-14
GB2443690B true GB2443690B (en) 2011-10-12

Family

ID=37594564

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0622278A Expired - Fee Related GB2443690B (en) 2006-11-09 2006-11-09 Retractable cam

Country Status (1)

Country Link
GB (1) GB2443690B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102808670A (en) * 2012-08-30 2012-12-05 上海交通大学 Air intake/exhaust valve lift-variable system in air intake pressure regulating type
CN102926834B (en) * 2012-10-12 2014-11-19 上海交通大学 Mechanical type valve stroke continuously-variable device
CN102926835B (en) * 2012-10-12 2014-11-19 上海交通大学 Two-valve stroke synchronously-variable device
CN102966403B (en) * 2012-11-12 2014-12-24 上海交通大学 Device for adjusting lift of intake valve of supercharged engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2402708A (en) * 2003-06-11 2004-12-15 Thomas Tsoi Hei Ma Selectable two-stroke/four-stroke lost-motion valve actuation system for i.c. engines
US6928970B2 (en) * 2001-08-24 2005-08-16 Robert Bosch Gmbh Device for the variable control of gas exchange valves in an internal combustion engine
JP2006342724A (en) * 2005-06-09 2006-12-21 Yamaha Motor Co Ltd Valve mechanism and engine equipped with it, and vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6928970B2 (en) * 2001-08-24 2005-08-16 Robert Bosch Gmbh Device for the variable control of gas exchange valves in an internal combustion engine
GB2402708A (en) * 2003-06-11 2004-12-15 Thomas Tsoi Hei Ma Selectable two-stroke/four-stroke lost-motion valve actuation system for i.c. engines
JP2006342724A (en) * 2005-06-09 2006-12-21 Yamaha Motor Co Ltd Valve mechanism and engine equipped with it, and vehicle

Also Published As

Publication number Publication date
GB0622278D0 (en) 2006-12-20
GB2443690A (en) 2008-05-14

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Legal Events

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

Effective date: 20120112