Patent ID: 6311656
Filing Date: 2001-11-06
Classification: F01L,Y10T

Abstract:
A valve timing control apparatus for an internal combustion engine, the valve timing control apparatus comprising:a rotating body receiving rotation from a crankshaft of the engine;a cam shaft rotatable relative to the rotating body;a housing stationary relative to one of the rotating body and the cam shaft, the housing comprising a hydraulic chamber, and an engaging recess;a rotor member stationary relative to the other of the rotating body and the cam shaft, the rotor member comprising a vane extending radially and dividing the hydraulic chamber of the housing into an advance chamber and a retard chamber, and a pin sliding hole extending along an axial direction of the cam shaft;a seal member provided at an outer end of the vane, for sealing between an inner circumferential surface of the housing and the outer end of the vane;a hydraulic circuit selectively supplying and draining hydraulic fluid to and from the advance and retard chambers and thereby rotating the vane in one of a forward direction and a reverse direction;a lock pin received slidably in the pin sliding hole of the rotor member, to prevent relative rotation between the housing and the rotor member by engaging with the engaging recess of the housing, and to allow relative rotation between the housing and the rotor member by disengaging from the engaging recess; andan oil reservoir being located radially between the pin sliding hole and the inner circumferential surface of the housing, and communicating with one of the advance chamber and retard chamber.