Variable valve actuation device of internal combustion engine

Details Variable valve actuation device of internal combustion engine Variable valve actuation device of internal combustion engine

2007-01-17

2008-12-09

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390, C123S090440, C074S569000

Reexamination Certificate

active

07461620

ABSTRACT:
A valve actuating link is provided for transmitting a combined movement of a drive cam on a cam shaft and a control cam on a control shaft to a valve pressing structure of an engine valve. The valve actuating link comprises a bearing portion that bears the control shaft, a hook-shaped lower portion that surrounds the cam shaft keeping a given space therebetween and a cam portion that repeatedly pushes the valve pressing structure to induce an open/close operation of the engine valve. Each of a plurality of engine valves has its own respective drive cam, control cam, valve actuating link and valve pressing structure.

REFERENCES:
patent: 5373818 (1994-12-01), Unger
patent: 6659053 (2003-12-01), Cecur
patent: 6837198 (2005-01-01), Maas et al.
patent: 7111600 (2006-09-01), Naumann
patent: 7188595 (2007-03-01), Hara
patent: 07-063023 (1995-03-01), None
patent: 11-107725 (1999-04-01), None
patent: WO 01/75279 (2001-10-01), None
patent: WO 02/35067 (2002-05-01), None

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