Variable valve system

Details Variable valve system Variable valve system

2011-05-31

2011-05-31

Denion, Thomas E (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090160

Reexamination Certificate

active

07950359

ABSTRACT:
A variable valve system includes a variable valve lifter for changing a first lift amount of one or more valves at a predetermined engine speed; a variable valve timing portion for controlling opening and closing timing of one or more valves; and a cylinder deactivation portion that changes a second lift amount of two or more valves in an alternating pattern.

REFERENCES:
patent: 4129109 (1978-12-01), Matsumoto
patent: 6557518 (2003-05-01), Albertson et al.
patent: 6874463 (2005-04-01), Bolander et al.
patent: 7765052 (2010-07-01), Kaiser et al.
patent: 2003/0226543 (2003-12-01), Glugla et al.
patent: 2007/0215081 (2007-09-01), Frincke et al.
patent: 2008/0047509 (2008-02-01), Sellnau et al.
patent: 7-71278 (1995-03-01), None
patent: 2000-0017311 (2000-03-01), None

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