Valve timing control for marine engine

Details Valve timing control for marine engine Valve timing control for marine engine

2005-09-06

2005-09-06

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090120

Reexamination Certificate

active

06938594

ABSTRACT:
An engine for a marine drive has a combustion chamber. An engine body of the engine defines an air intake port communicating with the combustion chamber. An air induction device communicates with the air intake port to introduce air to the combustion chamber through the air intake port. The air induction device includes a throttle valve to regulate an amount of the air. An air intake valve moves between an opening position and a closing position of the intake port. A camshaft actuates the intake valve. A VVT mechanism changes an actuating timing of the camshaft at which the camshaft actuates the intake valve. A control device controls the change mechanism. A throttle position sensor, an intake pressure or other sensors sends respective signals to the control device. The control device determines a sudden acceleration state of the engine based upon at least one of the signals. The control device triggers the VVT mechanism to advance the actuating timing based only upon the throttle opening degree signal when the control device determines the sudden acceleration state.

REFERENCES:
patent: 5012773 (1991-05-01), Akasaka et al.
patent: 5058539 (1991-10-01), Saito et al.
patent: 5111780 (1992-05-01), Hannibal
patent: 5133310 (1992-07-01), Hitomi et al.
patent: 5143034 (1992-09-01), Hirose
patent: 5150675 (1992-09-01), Murata
patent: 5184581 (1993-02-01), Aoyama et al.
patent: 5189999 (1993-03-01), Thoma
patent: 5301639 (1994-04-01), Satou
patent: 5305718 (1994-04-01), Muller
patent: 5353755 (1994-10-01), Matsuo et al.
patent: 5458099 (1995-10-01), Koller et al.
patent: 5474038 (1995-12-01), Golovatai-Schmidt et al.
patent: 5540197 (1996-07-01), Golovatai-Schmidt et al.
patent: 5606941 (1997-03-01), Trzmiel et al.
patent: 5606952 (1997-03-01), Kanno et al.
patent: 5628286 (1997-05-01), Kato et al.
patent: 5669343 (1997-09-01), Adachi
patent: 5713319 (1998-02-01), Tortul
patent: 5718196 (1998-02-01), Uchiyama et al.
patent: 5758612 (1998-06-01), Tsuzuku et al.
patent: 5797363 (1998-08-01), Nakamura
patent: 5799631 (1998-09-01), Nakamura
patent: 5813377 (1998-09-01), Matsunaga
patent: 5826560 (1998-10-01), Ito
patent: 5829399 (1998-11-01), Scheidt et al.
patent: 5836274 (1998-11-01), Saito et al.
patent: 5855190 (1999-01-01), Matsunaga
patent: 5913298 (1999-06-01), Yoshikawa
patent: 5924395 (1999-07-01), Moriya et al.
patent: 5954019 (1999-09-01), Yoshikawa et al.
patent: 5967125 (1999-10-01), Morikawa
patent: 5970929 (1999-10-01), Tacquet
patent: 6015319 (2000-01-01), Tanaka
patent: 6032629 (2000-03-01), Uchida
patent: 6035817 (2000-03-01), Uchida
patent: 6076492 (2000-06-01), Takahashi
patent: 6116228 (2000-09-01), Motose et al.
patent: 6170446 (2001-01-01), Hashimoto
patent: 6182636 (2001-02-01), Russell et al.
patent: 6186105 (2001-02-01), Yonezawa
patent: 6189498 (2001-02-01), Yonezawa et al.
patent: 6250266 (2001-06-01), Okui et al.
patent: 6289861 (2001-09-01), Suzuki
patent: 6325031 (2001-12-01), Takano
patent: 6343580 (2002-02-01), Uchida
patent: 6343581 (2002-02-01), Suzuki
patent: 6354277 (2002-03-01), Kato
patent: 6357405 (2002-03-01), Tsuji et al.
patent: 2002/0017277 (2002-02-01), Kanno
patent: 0 356 162 (1990-02-01), None
patent: 0 699 831 (1996-03-01), None
patent: 0 808 997 (1997-11-01), None
patent: 0 829 621 (1998-03-01), None
Co-pending U.S. Appl. No. 10/078,275, entitled Control System for Marine Engine, filed on Feb. 14, 2002 in the name of Isao Kanno and assigned to Sanshin Kogyo Kabushiki Kaisha.
Application entitled, Four-Cycle Engine for Marine Drive, Publication No. 2002/0017277 with publication date of Feb. 14, 2002.
Application entitled, Control System for Marine Engine, U.S. Appl. No. 10/078,275, filed on Feb. 14, 2002 in 35 pgs. along with 13 sheets of informal drawings.

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