Patent ID: 7341031

Claim:
A valve timing controller for an internal combustion engine, comprising: a sprocket coupled to a driving shaft of the internal combustion engine; a camshaft receiving a driving force from the sprocket for opening/closing a valve of the internal combustion engine; a housing connected to the sprocket and having an annular outer peripheral portion which is able to rotate relatively with respect to the camshaft, the housing defining a pressure chamber therein; a rotor accommodated in the housing and connected to the camshaft, the rotor dividing the pressure chamber into an advance chamber and a retard chamber, the rotor rotating in the housing in response to a pressure in the advance chamber and the retard chamber, a stopper pin provided in the rotor; and a receiving hole provided in the sprocket for engaging with the stopper pin when a rotational phase between the camshaft and the housing is a predetermined phase, wherein the housing is biasedly assembled to the sprocket in a direction in which the rotor knocks the housing, a camshaft rotatably extends through a through-hole provided in the sprocket and is engaged with a camshaft-inserting hole provided in the rotor, and an inner diameter of the camshaft-inserting hole is lager than an inner diameter of the through-hole provided in the sprocket in order to prevent the camshaft-inserting hole from overlapping the through-hole.