The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2017
Filed:
Oct. 15, 2015
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Mikihiro Kajiura, Tama, JP;
Yosuke Iwase, Yokohama, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
A valve-timing control apparatus includes an electric motor; a speed-reduction mechanism configured to reduce a rotational speed of the output shaft of the electric motor; a slip ring provided on a surface of a tip portion of the electric motor; a cover member provided to cover at least a part of the surface of the tip portion of the electric motor; a power-feeding brush disposed in the cover member and being in contact with the slip ring; and an angle sensing mechanism configured to sense a rotational angle of the output shaft of the electric motor. The angle sensing mechanism includes a detected portion attached to the output shaft of the electric motor, and a detecting portion attached to the cover member and opposed to the detected portion. The power-feeding brush is located so as not to overlap with the detected portion in a vertically-upper direction from the detected portion.