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:
Nov. 07, 1989
Filed:
Feb. 02, 1988
Applicant:
Inventors:
Toru Kurisu, Hiroshima, JP;
Tuneo Kodama, Higashihiroshima, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
123 9017 ; 123 906 ;
Abstract
An engine valve operating apparatus of the type having an overhead camshaft with a plurality of cams for opening and closing intake and exhaust valves of an internal combustion engine. The camshaft is mounted on the engine by means of a plurality of bearing members each disposed one between two adjacent cams. The outermost cam is disposed outside the outermost bearing member and has a cam lobe with a closing ramp height higher than that of the cam lobes of the remaining cams.