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BR9807584A - Operational mechanism for a valve. - Google Patents

Operational mechanism for a valve.

Info

Publication number
BR9807584A
BR9807584A BR9807584A BR9807584A BR9807584A BR 9807584 A BR9807584 A BR 9807584A BR 9807584 A BR9807584 A BR 9807584A BR 9807584 A BR9807584 A BR 9807584A BR 9807584 A BR9807584 A BR 9807584A
Authority
BR
Brazil
Prior art keywords
valve
follower
cam
axis
point
Prior art date
Application number
BR9807584A
Other languages
Portuguese (pt)
Inventor
Roger Harvey Slee
Original Assignee
Federal Mogul Technology 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 Federal Mogul Technology Ltd filed Critical Federal Mogul Technology Ltd
Publication of BR9807584A publication Critical patent/BR9807584A/en

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
    • 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
    • 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
    • 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder

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)

Abstract

ismo operacional (10) para uma válvula (12) inclui um came (40) montando para rotação sobre um eixo (42) deste, um balancim (50) tendo uma superfície de limite (70) que é móvel para operar a dita válvula, e um seguidor (80) montado para movimento pivotante. O seguidor (80) tem um ponto de contato com a superfície exterior (46) do came (40) de forma que, como gira o came, o seguidor é levado a girar. O seguidor (80) também tem um ponto de contato com a balancim (50) de forma que, como o seguidor válvula (12). O mecanismo também inclui meios de r (80) relativo ao eixo (42) do came e o eixo (52) do balancim (50) para assim trocar o ponto de condo came.operational ism (10) for a valve (12) includes a cam (40) mounted for rotation on an axis (42) thereof, a rocker arm (50) having a limit surface (70) which is movable to operate said valve, and a follower (80) mounted for pivoting movement. The follower (80) has a point of contact with the outer surface (46) of the cam (40) so that, as the cam rotates, the follower is driven to rotate. The follower (80) also has a point of contact with the rocker (50) so that, like the valve follower (12). The mechanism also includes means of r (80) relative to the axis (42) of the cam and the axis (52) of the rocker (50) to thereby exchange the condo point cam.

BR9807584A 1997-02-21 1998-02-17 Operational mechanism for a valve. BR9807584A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9703605.7A GB9703605D0 (en) 1997-02-21 1997-02-21 Operating mechanisms for valves
PCT/GB1998/000484 WO1998037315A1 (en) 1997-02-21 1998-02-17 Operating mechanisms for valves

Publications (1)

Publication Number Publication Date
BR9807584A true BR9807584A (en) 2000-03-21

Family

ID=10808060

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9807584A BR9807584A (en) 1997-02-21 1998-02-17 Operational mechanism for a valve.

Country Status (6)

Country Link
EP (1) EP0966595A1 (en)
JP (1) JP2001512546A (en)
KR (1) KR20000071212A (en)
BR (1) BR9807584A (en)
GB (2) GB9703605D0 (en)
WO (1) WO1998037315A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001164911A (en) * 1999-12-10 2001-06-19 Yamaha Motor Co Ltd Valve train mechanism of 4-cycle engine
DE10104038A1 (en) * 2001-01-31 2002-08-01 Bayerische Motoren Werke Ag Turning device for eccentric shaft of valve drive in IC engines has hydraulic vane cell pump supplied with medium by hydraulic vehicle system
EP1605142B1 (en) * 2003-03-11 2014-01-01 Yamaha Hatsudoki Kabushiki Kaisha Variable valve mechanism for internal combustion engine
JP4274425B2 (en) * 2004-01-20 2009-06-10 本田技研工業株式会社 Valve operating device for internal combustion engine
FR2882781B1 (en) * 2005-03-07 2010-06-18 Peugeot Citroen Automobiles Sa DEVICE CONTROLLING THE OPENING AND CLOSING OF ONE OR MORE VALVES OF AN INTERNAL COMBUSTION ENGINE AND AN INTERNAL COMBUSTION ENGINE COMPRISING SUCH A DEVICE
JP5251630B2 (en) * 2009-03-12 2013-07-31 日産自動車株式会社 Variable valve operating device for internal combustion engine
EP2803829A1 (en) * 2013-05-14 2014-11-19 Caterpillar Motoren GmbH & Co. KG Flexible cam follower

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382428A (en) * 1981-06-08 1983-05-10 Tourtelot Jr Edward M Contoured finger follower variable valve timing mechanism
SU1035249A1 (en) * 1981-08-12 1983-08-15 Институт Механики Машин Ан Гсср Ic engine gas distribution mechanism
IT1157983B (en) * 1982-12-23 1987-02-18 Fiat Auto Spa KINEMATIC DEVICE FOR THE CONTROL OF A VALVE OF AN ENDOTHERMAL MOTOR
US4469056A (en) * 1983-02-22 1984-09-04 Tourtelot Jr Edward M Dual follower variable valve timing mechanism
FR2585766B1 (en) * 1985-08-05 1987-11-27 Peugeot DEVICE FOR CONTROLLING VALVES OF AN INTERNAL COMBUSTION ENGINE BY DEACTIVATED ROCKERS
GB2214570A (en) * 1988-01-22 1989-09-06 Ford Motor Co Variable lift i.c. engine valves
EP0452671B1 (en) * 1990-03-14 1995-06-14 Suzuki Kabushiki Kaisha Valve actuating mechanism in four-stroke cycle engine
US5572962A (en) * 1991-12-03 1996-11-12 Motive Holdings Limited Variable valve lift mechanism for internal combustion engine
DE4300684C2 (en) * 1993-01-13 1994-10-13 Meta Motoren Energietech Valve train for variable control of internal combustion engines
DE19532334A1 (en) * 1995-09-01 1997-03-06 Bayerische Motoren Werke Ag Variable valve train, especially for internal combustion engines
DE19548389A1 (en) * 1995-12-22 1997-06-26 Siemens Ag Adjustment device for the stroke of a gas exchange valve of an internal combustion engine

Also Published As

Publication number Publication date
WO1998037315A1 (en) 1998-08-27
JP2001512546A (en) 2001-08-21
GB9803201D0 (en) 1998-04-08
GB2322412A (en) 1998-08-26
GB9703605D0 (en) 1997-04-09
EP0966595A1 (en) 1999-12-29
KR20000071212A (en) 2000-11-25

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law