VALVE-TIMING CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE AND COVER MEMBER OF VALVE-TIMING CONTROL APPARATUS

摘要

A valve-timing control apparatus includes a phase change mechanism configured to change a valve timing, a cover member provided near a front end side of the phase change mechanism; slip rings provided to one of a front end portion of the phase change mechanism and a facing surface of the cover member which faces the phase change mechanism; a pair of brushes provided to another of the front end portion of the phase change mechanism and the facing surface of the cover member to be axially slidable. One end portion the pigtail harness is connected with the corresponding brush. Another end portion of the pigtail harness is connected with a connector terminal under a deflected state, at a location radially shifted from an axis of the corresponding brush. The another end portions of the pair of pigtail harnesses are separated from each other by a partition wall.

主权项

1. A valve-timing control apparatus for an internal combustion engine, comprising:
a phase change mechanism configured to change a valve timing of an engine valve, the phase change mechanism including
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 configured to rotate the driven rotating member relative to the drive rotating member by means of rotary drive of the electric motor, anda speed-reduction mechanism configured to reduce a rotational speed of the electric motor and to transmit the reduced rotational speed to the driven rotating member; a cover member provided near a front end side of the phase change mechanism; slip rings provided to one of a front end portion of the phase change mechanism and a facing surface of the cover member which faces the front end portion of the phase change mechanism, the slip rings being configured to supply electric power to the electric motor; a pair of brushes provided to another of the front end portion of the phase change mechanism and the facing surface of the cover member to be axially slidable relative to the another of the front end portion of the phase change mechanism and the facing surface of the cover member, wherein the pair of brushes are configured to supply electric power to the electric motor by electrical contact with the slip rings; and a pair of pigtail harnesses each having a flexibility, wherein
one end portion of each of the pair of pigtail harnesses is connected with the corresponding brush,another end portion of each of the pair of pigtail harnesses is connected with a connector terminal under a deflected state, at a location shifted from an axis of the corresponding brush in a radial direction of the corresponding brush, andthe another end portions of the pair of pigtail harnesses are separated from each other by a partition wall made of an insulating material.