Patent ID: 7624710

Claim:
A valve timing controller adjusting a valve timing of an intake valve and/or an exhaust valve of an internal combustion engine, comprising: a first rotor having a first gear and rotating along with one of a crankshaft and a camshaft of the internal combustion engine; a second rotor having a second gear and rotating along with the other of the crankshaft and the camshaft; and a planet gear performing a planetary motion to vary a relative rotational phase between the first rotor and the second rotor while engaging with the first gear and the second gear, wherein the first rotor has the support opening at an end surface thereof, and accommodating the second rotor therein, the second rotor has a supporting spindle part which supports the support opening from an inner circumference thereof, an inner diameter of the supporting opening and an outer diameter of the supporting spindle part are smaller than an outer diameter of the second gear which engages the planet gear with a lubricant, and the supporting opening and the supporting spindle part are positioned at a place which deviates from the second gear in an axial direction thereof.