Variable valve system of internal combustion engine and...

Details Variable valve system of internal combustion engine and... Variable valve system of internal combustion engine and...

2007-12-25

2007-12-25

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090310

Reexamination Certificate

active

11151235

ABSTRACT:
A variable valve system of an internal combustion engine varies an operation manner of an engine valve by controlling an angular position of a control shaft. The system comprises a stopper mechanism that determines an angular range in which the control shaft is permitted to rotate about its axis; an actuating mechanism that actuates the control shaft to rotate about its axis; and a position matching device that is practically assembly only when the actuating mechanism is being assembled. The position matching device, when assembled, restricts operation of the actuating mechanism in such a manner as to match a maximally operated position of the actuating mechanism with a maximally operated angular position of the control shaft.

REFERENCES:
patent: 6615777 (2003-09-01), Grau
patent: 2004/0083997 (2004-05-01), Shibata et al.

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