Valve timing control apparatus

Details Valve timing control apparatus Valve timing control apparatus

2006-12-19

2006-12-19

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090120, C123S090160, C123S090150, C123S090310, C092S121000, C092S122000, C464S001000, C464S002000, C464S160000

Reexamination Certificate

active

07150251

ABSTRACT:
The invention intends to improve a response by utilizing a rotational variable torque of a cam shaft. Communication paths respectively communicating an advance hydraulic chamber and a retard hydraulic chamber provided in a second rotary member and a hydraulic connecting passage are provided so as to be communicated, at a time when a control member intending to improve a response by moving a phase angle control slider in an axial direction or a rotational direction in correspondence to an operating state such as an advance, a retard or the like so as to intermittently communicate an advance chamber communication path and a retard chamber communication path with a hydraulic chamber connecting groove only in a section in which a cam shaft variable torque in an operating direction is applied, is controlled in a rotating region, and a relative rotation of a third rotary member and the second rotary member stops.

REFERENCES:
patent: 6186104 (2001-02-01), Torii et al.
patent: 2001-317382 (2001-11-01), None
patent: 2002-168103 (2002-06-01), None
patent: 2002-235513 (2002-08-01), None

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