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:
Jun. 12, 1990
Filed:
Oct. 25, 1988
Applicant:
Inventors:
Masaaki Chiba, Hyogo, JP;
Shigemi Murata, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123613 ; 123414 ; 731173 ;
Abstract
A rotary position detector for an internal combustion engine with a cam shaft, which includes a sleeve to be mounted on the cam shaft for rotation along with the cam shaft; a hermetic housing to be secured to the engine such that the sleeve rotates within the housing; an optical sensor mounted on an inside of the housing; and a perforated shutter disk secured to the sleeve so as to rotate together with the sleeve with respect to the stationary optical sensor to provide a signal corresponding to a rotary position of the engine.