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:
Dec. 25, 2018
Filed:
Sep. 28, 2016
Aisin Seiki Kabushiki Kaisha, Kariya-shi, Aichi-ken, JP;
Hiroyuki Hamasaki, Obu, JP;
Yuji Noguchi, Obu, JP;
Takeo Asahi, Kariya, JP;
Toru Sakakibara, Kariya, JP;
Tomohiro Kajita, Kariya, JP;
Hideyuki Suganuma, Anjo, JP;
Tomokazu Harada, Aichi-ken, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya-Shi, Aichi-Ken, JP;
Abstract
A valve opening and closing timing control apparatus includes: a driving side rotor synchronously rotating with a crankshaft of an internal combustion engine; a driven side rotor disposed coaxially with the driving side rotor and synchronously rotating with a camshaft; a fluid pressure chamber formed on at least one of the driving side and driven side rotors, and partitioned into advance angle and retard angle chambers; a bolt member disposed coaxially with a rotary axis of the driven side rotor, connecting the driven side rotor and the camshaft, and provided with a cylindrical portion; a partition body provided with a press-fit portion, and partitioning the cylindrical portion into first and second flow passages; a valve body opening and closing the first flow passage; and a valve housing body accommodating the valve body.