Variable valve apparatus of internal combustion engine

Details Variable valve apparatus of internal combustion engine Variable valve apparatus of internal combustion engine

2007-01-30

2007-01-30

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390, C123S090440, C074S569000

Reexamination Certificate

active

11448819

ABSTRACT:
A variable valve apparatus is employed a configuration in which, at a high valve lift and high speed operation of an internal combustion engine, an oscillating fulcrum of a transmission arm and a rotation center of a control shaft are arranged between a direction of a component rotating a control shaft of a maximum load which occurs in the oscillating fulcrum of the transmission arm when an oscillating cam oscillates in a valve opening direction and a direction of a component rotating a control shaft of a maximum load opposite thereto which occurs when the oscillating cam oscillates in a valve closing direction.

REFERENCES:
patent: 6425357 (2002-07-01), Shimizu et al.
patent: 6994063 (2006-02-01), Murata
patent: 2003-239712 (2003-08-01), None

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