Engine valve actuator

Details Engine valve actuator Engine valve actuator

2005-10-25

2005-10-25

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

C123S090450, C123S090460, C123S090520

Reexamination Certificate

active

06957634

ABSTRACT:
An engine valve actuator for an internal combustion engine is provided. The engine valve actuator includes a housing having an opening and a first fluid passageway leading to the opening. An adjustment member is disposed in the housing and includes a protrusion that extends into the opening of the housing. A piston is disposed in the opening of the housing and has a bore adapted to receive the protrusion, a chamber, and a second fluid passageway that connects the bore with the chamber. The piston is adapted to move in a first direction relative to the housing in response to an introduction of pressurized fluid into the first fluid passageway. The piston moves in the first direction until the protrusion substantially withdraws from the bore. A push rod is operatively engaged with the piston such that movement of the piston in the first direction causes a corresponding movement of the push rod to thereby engage and open the engine valve.

REFERENCES:
patent: 3220392 (1965-11-01), Cummins
patent: 3250068 (1966-05-01), Vulliamy
patent: 4424790 (1984-01-01), Curtil
patent: 4552172 (1985-11-01), Krieger et al.
patent: 4561253 (1985-12-01), Curtil
patent: 4655178 (1987-04-01), Meneely
patent: 4706625 (1987-11-01), Meistrick et al.
patent: 4815423 (1989-03-01), Holmer
patent: 4974566 (1990-12-01), LoRusso et al.
patent: 5158048 (1992-10-01), Robnett et al.
patent: 5161501 (1992-11-01), Hu
patent: 5408979 (1995-04-01), Backlund et al.
patent: 5445128 (1995-08-01), Letang et al.
patent: 5460131 (1995-10-01), Usko
patent: 5511460 (1996-04-01), Custer
patent: 5682854 (1997-11-01), Ozawa
patent: 5809964 (1998-09-01), Meistrick et al.
patent: 5829397 (1998-11-01), Vorih et al.
patent: 5927075 (1999-07-01), Khair
patent: 6026786 (2000-02-01), Groff et al.
patent: 6082328 (2000-07-01), Meistrick et al.
patent: 6170441 (2001-01-01), Haldeman et al.
patent: 6192841 (2001-02-01), Vorih et al.
patent: 6209516 (2001-04-01), Yamashita
patent: 6237551 (2001-05-01), Macor et al.
patent: 6267107 (2001-07-01), Ward
patent: 6273057 (2001-08-01), Schwoerer et al.
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: 6302370 (2001-10-01), Schwoerer et al.
patent: 6467452 (2002-10-01), Duffy et al.
patent: 6571765 (2003-06-01), Kuboshima et al.
patent: 6651618 (2003-11-01), Coleman et al.
patent: 6668773 (2003-12-01), Holtman et al.
patent: 6688280 (2004-02-01), Weber et al.
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 U.S. Pat. No. 6,688,280, and Attachment to Request for Inter Parties Reexamination Transmittal Form, Sep. 17, 2004.
Request forInter PartesReexamination Transmittal Form for U.S. Pat. No. 6,651,618, and Attachment to Request for Inter Parties Reexamination Transmittal Form, Aug. 27, 2004.
http://www.mazda.com.au/corpora/209.html, Oct. 16, 2001, pp. 1-6.

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