Patent ID: 8899197

Claim:
A valve-timing control apparatus for an internal combustion engine, comprising: a drive rotating member configured to receive a rotational force from a crankshaft; a driven rotating member fixed to a cam shaft; an electric motor including a stator fixed to the driven rotating member, a rotor configured to rotate relative to the stator, a coil provided to at least one of the stator and the rotor, and configured to rotate the rotor relative to the stator by energization, and a motor output shaft fixed to the rotor; a speed-reduction mechanism configured to reduce a rotational speed of the motor output shaft and to transmit the reduced rotational speed of the motor output shaft to the driven rotating member; a slip ring provided to one of the drive rotating member and a cover member facing the drive rotating member, and configured to feed electric power to the coil; a power-feeding brush provided to another of the drive rotating member and the fixed member, and being in contact with the slip ring; a detection-target section provided to a tip side of the motor output shaft, and located on an inner circumferential side of the valve-timing control apparatus beyond a contact portion between the slip ring and the power-feeding brush; and a detecting section fixed integrally to the cover member, and located radially inward of the slip ring wherein the detecting section is configured to detect a rotational position of the motor output shaft by detecting a position of the detection-target section.