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:
Sep. 18, 2012
Filed:
Sep. 08, 2008
Shigemitsu Suzuki, Takahama, JP;
Toru Fujikawa, Obu, JP;
Yasutaka Miura, Anjo, JP;
Naoto Toma, Kariya, JP;
Shigemitsu Suzuki, Takahama, JP;
Toru Fujikawa, Obu, JP;
Yasutaka Miura, Anjo, JP;
Naoto Toma, Kariya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-Shi, Aichi, JP;
Abstract
A valve opening/closing timing control apparatus includes a phase displacing mechanism for displacing relative phase between a drive-side rotational member and a driven-side rotational member rotatable in unison with a cam shaft, a first pump driven by an internal combustion engine, a second pump driven by a drive source different from the internal combustion engine, a locking mechanism capable of locking the relative phase to an initial phase suitable for starting the internal combustion engine, and an urging mechanismfor urging the phase displacing mechanism in the advancing direction between the most retarding phase and the initial phase, a minimal urging force of the urging mechanism being set so as to override the displacing force toward the retarding phase side at the minimal pressure.