Valve mechanism for internal combustion engine

Details Valve mechanism for internal combustion engine Valve mechanism for internal combustion engine

2006-02-27

2008-07-15

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090310

Reexamination Certificate

active

07398750

ABSTRACT:
A valve drive mechanism is provided for opening and closing a valve of an engine. The device comprises a valve drive device and a swing member pivotally supported on a swing member support shaft. The swing member is driven to pivot about the swing member support shaft by the valve drive device. A cam surface is formed on the swing member. The cam surface is configured to transfer motion of the swing member to a second member of the valve drive device. The cam surface comprises a first portion that is configured to contact the second member while the valve is moving from a closed or substantially closed position to an open position and a second portion configured to contact the second member when the valve is closed or substantially closed. A width of the second portion of the cam surface is smaller than a width of the first portion of the cam surface.

REFERENCES:
patent: 4572118 (1986-02-01), Baguena et al.
patent: 4714057 (1987-12-01), Wichart
patent: 5018487 (1991-05-01), Shinkai
patent: 5189998 (1993-03-01), Hara
patent: 5373818 (1994-12-01), Unger
patent: 6425357 (2002-07-01), Shimizu et al.
patent: 62-146091 (1988-12-01), None
patent: 04-246790 (1992-09-01), None
patent: 04-177111 (1994-01-01), None
patent: 05-064177 (1994-09-01), None
patent: 05-102572 (1994-11-01), None
patent: 05-328072 (1995-03-01), None
patent: 06-060942 (1995-05-01), None
patent: 06-088455 (1995-11-01), None
patent: 09-212497 (1999-02-01), None
patent: 2001-300725 (2003-04-01), None
patent: 2002-040455 (2003-08-01), None
patent: WO 02/92972 (2002-04-01), None
patent: WO 2004/097186 (2004-11-01), None
patent: WO 2005/019607 (2005-03-01), None
patent: WO 2005/019609 (2005-03-01), None
U.S. Appl. No. 09/773,066, filed Dec. 20, 2001, Himsel.
U.S. Appl. No. 10/990,557, filed Nov. 17, 2004, Fujita et al.
U.S. Appl. No. 11/263,528, filed Oct. 31, 2005, Fujita et al.
U.S. Appl. No. 11/263,573, filed Oct. 31, 2005, Fujita et al.
PCT International Search Report regarding PCT/JP2004/006426 mailed Aug. 3, 2004.
PCT International Search Report regarding PCT/JP2004/006428 mailed Aug. 17, 2004.
PCT International Search Report regarding PCT/JP2004/012193 mailed Nov. 2, 2004.

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