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:
Oct. 20, 2015
Aisin Seiki Kabushiki Kaisha, Kariya-shi, Aichi, JP;
Takeo Asahi, Kariya, JP;
Yuji Noguchi, Obu, JP;
Toru Sakakibara, Anjo, JP;
Masaki Kobayashi, Okazaki, JP;
Yoshihiro Kawai, Obu, JP;
Hiromitsu Shigyo, Toyota, JP;
Hideyuki Suganuma, Anjo, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya, Aichi, JP;
Abstract
A valve opening and closing timing control apparatus includes a driving-side rotational body, a driven-side rotational body, a cylindrical member provided at an inner portion of the driven-side rotational body, a bolt including a cylinder shaft portion, an advanced angle flow passage and a retarded angle flow passage, an introduction passage bringing the working fluid supplied from an outside to flow, a first connection passage bringing the working fluid at the introduction passage to flow to an inner side of the cylinder shaft portion, a second communication passage and a third communication passage arranged at the cylinder shaft portion, and a control valve element provided at the inner side of the cylinder shaft portion, the second communication passage and the advanced angle flow passage being in communication with a void provided between the bolt head and the cylindrical member and between the cylinder shaft portion and the driven-side rotational body.