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. 07, 2014
Filed:
Aug. 02, 2011
Shuhei Oe, Nukata-gun, JP;
Hiroya Andou, Nishio, JP;
Jun Yamada, Okazaki, JP;
Takehiro Tanaka, Okazaki, JP;
Yoshihito Moriya, Nagoya, JP;
Shuhei Oe, Nukata-gun, JP;
Hiroya Andou, Nishio, JP;
Jun Yamada, Okazaki, JP;
Takehiro Tanaka, Okazaki, JP;
Yoshihito Moriya, Nagoya, JP;
Nippon Soken, Inc., Nishio, JP;
Denso Corporation, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A valve timing control apparatus includes a housing that is rotatable with a crankshaft; a vane rotor that is rotatable with a camshaft; and a phase controller to compulsorily change a rotation phase of the vane rotor alternately between an advance side and a retard side with respect to the housing if an engine shifts to a high rotation state after the engine continuously has a low rotation state for a predetermined period or more. The engine in the low rotation state has a rotation speed lower than a predetermined rotation speed. The engine in the high rotation state has a rotation speed equal to or higher than the predetermined rotation speed.