Control apparatus for internal combustion engine

Details Control apparatus for internal combustion engine Control apparatus for internal combustion engine

2007-01-09

2007-01-09

Solis, Erick (Department: 3747)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S399000

Reexamination Certificate

active

11360806

ABSTRACT:
An engine adjusts the amount of intake air by cooperative control for the valve duration of the intake valve and the opening degree of the throttle valve. In the engine, the valve duration is fixed to a warm-up valve duration θw in a low-to-middle speed range of the engine during a period from immediately after starting of the engine to when warm-up is completed. In a high speed range, on the other hand, the valve duration is increased from the warm-up valve duration θw in accordance with increase in the engine speed Ne.

REFERENCES:
patent: 5690071 (1997-11-01), Jankovic
patent: 6000375 (1999-12-01), Isobe
patent: 6502546 (2003-01-01), Kawasaki et al.
patent: 6626144 (2003-09-01), Kanamaru
patent: 6843226 (2005-01-01), Miura
patent: 6866020 (2005-03-01), Allston et al.
patent: 2002/0174850 (2002-11-01), Kanai
patent: A-2001-263015 (2001-09-01), None

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