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:
Apr. 29, 2014
Filed:
Jul. 02, 2013
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Atsushi Watanabe, Atsugi, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
In an intake valve timing control apparatus, a lock member is arranged to lock a vane rotor with respect to a housing when the vane rotor is in a most retarded position within which rotation of the vane rotor is restricted by a stopper mechanism. In an exhaust valve timing control apparatus, a lock member is arranged to lock a vane rotor with respect to a housing when the vane rotor is in a most advanced position within which rotation of the vane rotor is restricted by a stopper mechanism. The exhaust valve timing control apparatus further includes a biasing member arranged to bias the vane rotor with respect to the housing in a direction toward the most advanced position. In each valve timing control apparatus, a housing body of the housing and a vane rotor are formed by extruding an aluminum-based metal.