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:
Feb. 27, 2018
Filed:
Aug. 25, 2015
Aisin Seiki Kabushiki Kaisha, Kariya-shi, Aichi-ken, JP;
Hiroki Mukaide, Chiryu, JP;
Naoto Toma, Kariya, JP;
Yoshiaki Yamakawa, Toyota, JP;
Masaki Kobayashi, Okazaki, JP;
Takeshi Hayashi, Nagoya, JP;
Hiroyuki Amano, Kariya, JP;
AISIN SEIKO KABUSHIKI KAISHA, Kariya-Shi, Aichi-Ken, JP;
Abstract
A valve timing control apparatus includes: a drive-side rotational member synchronously rotating with a drive shaft of an internal combustion engine; a driven-side rotational member disposed inside the drive-side rotational member and integrally rotating with a valve opening/closing camshaft; a hydrostatic pressure chamber formed by partitioning a space between the drive-side rotational and driven-side rotational members; an advance angle chamber and a retardation angle chamber formed by dividing the hydrostatic pressure chamber; an intermediate lock mechanism able to selectively switch between locked and unlocked states; an advance angle flow path allowing the hydraulic fluid to be circulated; a retardation angle flow path allowing the hydraulic fluid to be circulated; a control valve having a spool; and a phase control unit controlling the control valve.