Valve timing control apparatus

Details Valve timing control apparatus Valve timing control apparatus

2007-07-10

2009-11-03

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090310

Reexamination Certificate

active

07610883

ABSTRACT:
A valve timing control apparatus includes a driving side rotational member, a driven side rotational member arranged coaxially to the driving side rotational member, a fluid pressure chamber defined into an advanced angle chamber and a retarded angle chamber, a relative rotational phase adjusting mechanism controlling to selectively supply and drain a working fluid to and from the advanced angle chamber and the retarded angle chamber and adjusting a relative rotational phase of the driving side rotational member and the driven side rotational member, and a valve mechanism provided at the advanced angle chamber and establishing communication between an outside of the fluid pressure chamber and the advanced angle chamber in order to allow the driven side rotational member to advance when a fluctuated torque generated at a camshaft exceeds a torque applied to the driven side rotational member by the relative rotational phase adjusting mechanism.

REFERENCES:
patent: 5937810 (1999-08-01), Sato et al.
patent: 6532921 (2003-03-01), Sato et al.
patent: 2003/0033999 (2003-02-01), Gardner et al.
patent: 2003/0230268 (2003-12-01), Simpson et al.
patent: 2005/0284433 (2005-12-01), Yaoko et al.
patent: 09-151711 (1997-06-01), None
patent: 2002-168103 (2002-06-01), None

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