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:
Dec. 24, 2013
Filed:
Sep. 05, 2008
Michihiro Kameda, Hadano, JP;
Masayasu Nagado, Hadano, JP;
Michihiro Kameda, Hadano, JP;
Masayasu Nagado, Hadano, JP;
Nittan Valve Co., Ltd., Hadano-shi, Kanagawa, JP;
Abstract
[PROBLEMS] To provide an inexpensive cam shaft phase variable device of an engine in which the displacement width of attachment angle between a crankshaft and a camshaft is large and operational sound is silent. [MEANS FOR SOLVING PROBLEMS] In a phase variable device of an engine for altering the phase angle between a cam shaft and crankshaft depending on the relative rotational direction of a first control body of revolution being braked by a rotary operating force imparting means, the rotary operating force imparting means comprises a brake means of the first control body of revolution, a second intermediate body of revolution rotating synchronously with the cam shaft, a second control body of revolution having a brake means, a first eccentric rotating mechanism interlocked with the first control body of revolution to perform eccentric rotation, a second eccentric rotating mechanism interlocked with the second control body of revolution to perform eccentric rotation, and a means for coupling the first and second eccentric rotating mechanisms to perform relative rotation by engaging with the substantially radial guide groove of the second intermediate body of revolution under displaceable state.