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1. (WO2017150089) INTERNAL-COMBUSTION ENGINE VALVE TIMING CONTROL DEVICE

Pub. No.:    WO/2017/150089    International Application No.:    PCT/JP2017/004328
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Feb 08 00:59:59 CET 2017
IPC: F01L 1/352
H02K 13/00
Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD.
日立オートモティブシステムズ株式会社
Inventors: IWASE, Yosuke
岩瀬 陽輔
ITAKURA, Hiroyuki
板倉 寛幸
MANAKO, Masato
真子 正登
YAMANAKA, Atsushi
山中 淳史
Title: INTERNAL-COMBUSTION ENGINE VALVE TIMING CONTROL DEVICE
Abstract:
This internal-combustion engine valve timing control device is provided with: an electric motor 8 which causes a camshaft to rotate relative to a timing sprocket; a pair of power supply brushes 31a, 31b to which electric power is supplied and which are provided in a cover main body 28 of a cover member 4 provided in such a way as to cover a front end portion of the electric motor; and doubled inner and outer slip rings 26a, 26b which are fixed integrally to a power supply plate 17 of the electric motor and with which the power supply brushes are respectively in electrical contact; wherein the power supply brushes are disposed spaced apart from one another to the left and right about a perpendicular line Q which passes through an axis P of the cover main body, and are provided in positions which do not overlap in the direction of gravity. By modifying the arrangement of the pair of power supply brushes, short circuiting due to abrasion powder can be suppressed.