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:
May. 20, 2014
Filed:
Oct. 12, 2010
Masaaki Niiro, Hadano, JP;
Michihiro Kameda, Hadano, JP;
Koichi Homma, Hadano, JP;
Masayasu Nagado, Hadano, JP;
Masaaki Niiro, Hadano, JP;
Michihiro Kameda, Hadano, JP;
Koichi Homma, Hadano, JP;
Masayasu Nagado, Hadano, JP;
Nittan Valve Co., Ltd., Kanagawa, JP;
Abstract
The inventive phase varying apparatus () has a drive rotor () driven by the crankshaft of the engine, a phase angle varying mechanism () for varying the phase angle of the camshaft relative to the crankshaft, and a self-locking mechanism () for preventing a gap in phase angle between the drive rotor and the camshaft due to an externally input disturbing torque. The self-locking mechanism has a cylinder section () mounted on the drive rotor, a circular eccentric cam () integrated with the camshaft and having inside thereof a cam holding groove (), and a lock plate () rotatably supporting the periphery of the circular eccentric cam and having on the outer periphery thereof at least four radial abutment protrusions (-) that are adapted to abut against the inner periphery () of the cylinder section () to perform self-locking.