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:
Oct. 05, 1982
Filed:
Jun. 27, 1980
Shunichi Aoyama, Yokohama, JP;
Kazuyuki Miisho, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A valve operating mechanism of an internal combustion engine comprises a first cam rotatable about an axis in timed relation to the engine speed, a rocker arm operatively engaged with the valve of the engine and rockable to open and control closing of said valve, a second cam rockable about an axis parallel to the axis of said first cam and interposed between the first cam and the rocker arm to provide an operative connection therebetween, the first and second cams having mating cam faces which taper axially thereof, and means for shifting one of the first and second cams axially thereof relative to the other thereby varying the angular position of the second cam independently of that of the first cam in response to variation of the engine operating condition whereby valve lift, valve timing and the period during which the valve is open are varied in accordance with the varying operating conditions of the engine.