Variable valve timing controller

A variable valve timing controller for an internal combustion engine, the variable valve timing controller being disposed in a system in which the torque of a driving shaft is transmitted to a driven shaft adjusting an opening and closing timing of an intake valve and/or an exhaust valves, comprising:

• a phase adjusting mechanism having a first rotating member rotating in synchronizes with the driving shaft, a second rotating member rotating in synchronizes with the driven shaft, a first arm pivoting on the first rotating member, and a second arm pivoting on the second rotating member and the first arm;
• and
• a controller controlling a movement of at least one of the first arm and the second arm,
• wherein the phase adjusting mechanism varies a rotational phase of the driven shaft relative to the driving shaft by converting the movement of the arm controlled by the controller into the rotational movement of the second rotating member relative to the first rotating member.