Valve-timing control apparatus of internal combustion engine

Details Valve-timing control apparatus of internal combustion engine Valve-timing control apparatus of internal combustion engine

2006-05-26

2008-10-28

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090170, C123S090310

Reexamination Certificate

active

07441520

ABSTRACT:
A valve-timing control apparatus of an internal combustion engine provides a valve timing controller capable of continuously and variably controlling the overlap period of an intake valve and an exhaust valve of an internal combustion engine. A driving-state determination mechanism determines the driving state of the internal combustion engine and an overlap-period setting apparatus sets the overlap period with the valve timing controller. The overlap-period is set during the start of the internal combustion engine on the basis of the determinations of the driving-state determination mechanism which vary as the internal combustion engine starts.

REFERENCES:
patent: 5293741 (1994-03-01), Kashiyama et al.
patent: 5558051 (1996-09-01), Yoshioka
patent: 2002/0043243 (2002-04-01), Majima
patent: 2004/0139949 (2004-07-01), Koseki et al.
patent: 07-109934 (1995-04-01), None

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