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:
Oct. 14, 2014
Filed:
Jul. 19, 2013
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-Shi, Aichi-Ken, JP;
Abstract
A valve timing control apparatus includes a driving-side rotation member, a driven-side rotation member, a fluid chamber, an advanced angle chamber and a retarded angle chamber, a fluid control valve portion controlling supply and discharge of fluid relative to each of the advanced angle chamber and the retarded angle chamber, an accumulator accumulating a portion of fluid supplied to the fluid control valve portion from a pump at a fluid storage portion during an operation of an internal combustion engine and supplying fluid accumulated at the fluid storage portion to the fluid control valve portion at a start of the internal combustion engine, and a supply flow passage connecting the pump, the fluid control valve portion, and the accumulator in series. The accumulator includes a relief control valve portion configured to maintain a pressure of fluid accumulated at the fluid storage portion equal to or smaller than a predetermined value.