Engine valve actuation system

Details Engine valve actuation system Engine valve actuation system

2005-12-09

2008-10-14

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Rocker

C123S090120, C123S090390, C123S090160, C074S569000

Reexamination Certificate

active

07434556

ABSTRACT:
A valve actuation system is provided. The system has an engine valve moveable between a first position at which the engine valve prevents a flow of fluid relative to the engine valve and a second position at which fluid flows relative to the engine valve. The system also has a first cam adapted to move the engine valve from the first position to the second position during a first lift period in response to a rotation of the first cam. The system has a second cam adapted to move the engine valve from the first position to the second position during a second lift period in response to a rotation of the second cam. The system also has a cam following assembly disposed between the first and second cams and the engine valve. The cam following assembly is adapted to selectively connect one of the first and second cams with the engine valve to thereby move the engine valve through one of the first and second lift periods.

REFERENCES:
patent: 3250068 (1966-05-01), Vulliamy
patent: 3777729 (1973-12-01), Cote
patent: 3897760 (1975-08-01), Hisserich
patent: 4084557 (1978-04-01), Luria
patent: 4397270 (1983-08-01), Aoyama
patent: 4424790 (1984-01-01), Curtil
patent: 4530318 (1985-07-01), Semple
patent: 4561253 (1985-12-01), Curtil
patent: 4620510 (1986-11-01), Feuling
patent: 4708101 (1987-11-01), Hara et al.
patent: 4714057 (1987-12-01), Wichart
patent: 4724822 (1988-02-01), Bonvallet
patent: 4815423 (1989-03-01), Holmer
patent: 5025761 (1991-06-01), Chen
patent: 5181485 (1993-01-01), Hirose et al.
patent: 5186128 (1993-02-01), Murata et al.
patent: 5289806 (1994-03-01), Hurr
patent: 5408979 (1995-04-01), Backlund et al.
patent: 5417186 (1995-05-01), Elrod et al.
patent: 5445128 (1995-08-01), Letang et al.
patent: 5682854 (1997-11-01), Ozawa
patent: 5685264 (1997-11-01), Allen et al.
patent: 5829397 (1998-11-01), Vorih et al.
patent: 5855190 (1999-01-01), Matsunaga
patent: 5927075 (1999-07-01), Khair
patent: 5950582 (1999-09-01), Stein
patent: 6026786 (2000-02-01), Groff et al.
patent: 6035818 (2000-03-01), Sato
patent: 6082328 (2000-07-01), Meistrick et al.
patent: 6170441 (2001-01-01), Haldeman et al.
patent: 6209516 (2001-04-01), Yamashita
patent: 6237551 (2001-05-01), Macor et al.
patent: 6267107 (2001-07-01), Ward
patent: 6273076 (2001-08-01), Beck et al.
patent: 6279550 (2001-08-01), Bryant
patent: 6301887 (2001-10-01), Gorel et al.
patent: 6301889 (2001-10-01), Gladden et al.
patent: 6302076 (2001-10-01), Bredy
patent: 6467452 (2002-10-01), Duffy et al.
patent: 6484681 (2002-11-01), Kuroda
patent: 6536390 (2003-03-01), Takahashi et al.
patent: 6571765 (2003-06-01), Kuboshima et al.
patent: 6595170 (2003-07-01), Wiekmeijer
patent: 6651618 (2003-11-01), Coleman et al.
patent: 6679207 (2004-01-01), Leman
patent: 6688280 (2004-02-01), Weber
patent: 7007650 (2006-03-01), Harmon
patent: 05106415 (1993-04-01), None
patent: 2000120457 (2000-04-01), None
patent: 2000145484 (2000-05-01), None
patent: WO 98/02653 (1998-01-01), None
Edwards et al., “The Potential of a Combined Miller Cycle and Internal EGR Engine for Future Heavy Duty Truck Applications,” The Engineering Society for Advancing Mobility Land Sea Air and Space International, International Congress and Exposition, Feb. 23-26, 1998, pp. 1-19.
Obert, “Internal Combustion Engines and Air Pollution,” Based on Internal Combustion Engines, Third Edition, 1973, pp. 612-614.
Challen et al., “Diesel Engine Reference Book, Section Edition,” SAE International, 1999, pp. 75, 81, 84, 146, and 263-305.
Yorihiro Fukuzawa et al., “Development of High Efficiency Miller Cycle Gas Engine”, Mitsubishi Heavy Industries, Ltd., Technical Review, vol. 38, No. 3, Oct. 2001, pp. 146-150.
Request forInter PartesReexamination Transmittal Form for US Patent 6,688,280, and Attachment to Request forInter PartesReexamination Transmittal Form, Sep. 17, 2004.
Request forInter PartesReexamination Transmittal Form for US Patent 6,651,618, and Attachment to Request forInter PartesReexamination Form, Aug. 27, 2004.
http://www.mazda.com.au/corpora/209.html, Oct. 16, 2001, p. 1-6.

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