Patent ID: 7621243

Claim:
A valve timing controller for controlling valve timing of at least one of an intake valve and an exhaust valve, comprising: a first rotary element rotating in response to one of the crankshaft and the camshaft, and including a first gear part; a second rotary element rotating in response to the other of the crankshaft and the camshaft, and including a second gear part; a planetary gear including a third gear part and a fourth gear part which respectively engage with the first gear part and the second gear part, the planetary gear performing a planetary motion to vary a relative rotational phase between the first rotary element and the second rotary element; a supporting member supporting the planetary gear in such a manner that the planetary gear is slidable in its axial direction between the first rotary element and the second rotary element; and an elastic member restricting a displacement of the planetary gear in its axial direction.