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:
Mar. 23, 2010
Filed:
Nov. 30, 2006
Hidetoshi Ishigami, Shizuoka, JP;
Yoshitaka Nagai, Shizuoka, JP;
Hidetoshi Ishigami, Shizuoka, JP;
Yoshitaka Nagai, Shizuoka, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Abstract
A cam sensor is provided in a position opposing one surface side of a cam driven sprocket in a valve timing control device. When the valve timing control device is in a high revolution state, a weight is pivoted by centrifugal force caused by the rotation. This allows a projection at the weight to be detected by the cam sensor. In this case, for each rotation of the valve timing control device, the projection of the weight passes the detectable position of the cam sensor and a pulse is generated in a cam signal to be transmitted from the cam sensor to an ECU.