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. 11, 1999
Filed:
Jan. 21, 1998
Akira Nakagomi, Fujisawa, JP;
Isuzu Motors Ltd., Tokyo, JP;
Abstract
A valve operating apparatus for DOHC engine allowing to improve the fuel consumption, in DOHC engines, is provided with by reducing the weight of the shaft system of valve operating mechanism and lowering the driving force for the dynamic valve and, at the same time, permitting to improve the durability and the silence of the transmission system and, moreover, assuring a good combustion even for engines having smaller bore diameter. A first and a second cam shafts for opening/closing the intake/exhaust valve are arranged side by side on a cylinder head, a first transmission means is disposed at a shaft end of the first cam shaft positioned at one side of the engine and, at the same time, shaft ends of the first and second cam shafts located at the other side of the engine are linked for the transmission of the driving power by a second transmission means. And the driving power from a crank shaft is transmitted to the first transmission means, and moreover, the shaft diameter of the second cam shaft is formed smaller than that of the first cam shaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile