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:
Nov. 06, 2007
Filed:
Nov. 15, 2006
Kinya Takahashi, Obu, JP;
Masayasu Ushida, Okazaki, JP;
Takao Nojiri, Anjo, JP;
Seiji Yaoko, Anjo, JP;
Jun Yamada, Okazaki, JP;
Kinya Takahashi, Obu, JP;
Masayasu Ushida, Okazaki, JP;
Takao Nojiri, Anjo, JP;
Seiji Yaoko, Anjo, JP;
Jun Yamada, Okazaki, JP;
Denso Corporation, Kariya, Aichi-pref, JP;
Nippon Soken, Inc., Nishio, Aichi-pref, JP;
Abstract
A valve timing adjusting apparatus has a housing and a vane rotor to form multiple fluid chambers, and a relative position of the vane rotor to the housing is adjusted by the fluid pressure supplied into the fluid chambers. A check valve is provided in a branched passage portion, so that working fluid may not be pushed out from an advancing fluid chamber to a low pressure side, even when the working fluid in the advancing fluid chamber is temporally compressed to increase its fluid pressure due to a torque change applied from a cam shaft to the vane rotor.