Patent ID: 7513227

Claim:
A valve timing control device, comprising: a driving side rotational member synchronously rotating with a crankshaft of an internal combustion engine; a driven side rotational member arranged coaxially with the driving side rotational member and rotatable relative to the driving side rotational member, the driven side rotational member rotating integrally with a camshaft for opening and closing valves for the internal combustion engine; a retarded angle chamber formed by the driving side rotational member and the driven side rotational member and displacing a relative rotational phase of the driven side rotational member relative to the driving side rotational member in a retarded angle direction; an advanced angle chamber formed by the driving side rotational member and the driven side rotational member and displacing the relative rotational phase of the driven side rotational member relative to the driving side rotational member in an advanced angle direction; a first control valve controlling supply and discharge states of an operational fluid between an operational fluid reservoir provided at a lower portion of the internal combustion engine and the advanced angle chamber and the retarded angle chamber; a supply passage supplying the operational fluid from the operational fluid reservoir to the first control valve; a first pump provided at the supply passage and pumping the operational fluid in the operational fluid reservoir to a vapor liquid separating portion; a second pump provided at the supply passage and pumping the operation fluid in the vapor liquid separating portion to the first control valve; a discharge passage discharging the operational fluid from the first control valve toward the operational fluid reservoir; and a second control valve provided at the discharge passage and operated to selectively switch the discharge passage between a first discharge passage discharging the operational fluid discharged from the first control valve to the operational fluid reservoir and a second discharge passage flowing the operational fluid to be drawn into a drawing portion of the first pump.