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:
Sep. 01, 1987
Filed:
Apr. 24, 1986
Applicant:
Inventors:
Hirofumi Nishimura, Hiroshima, JP;
Yasuyuki Morita, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
123 9017 ; 123 9022 ; 123 904 ;
Abstract
A variable valve mechanism for an internal combustion engine including a central cam of a smaller lift and a pair of side cams located at the opposite sides of the central cam symmetrically with each other with respect to the central cam. A rocker arm device includes a pair of side arm sections engaged respectively with the side cams and a central arm between the side arm sections. The central arm is engaged at one end with the engine valve and at the other end with the central cam. A connecting device is provided for connecting the side arm sections with the central arm under a high speed.