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.

Date of Patent:
Jun. 04, 1991

Filed:

Oct. 12, 1990
Applicant:
Inventor:

Kenzo Watanabe, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ; F01L / ;
U.S. Cl.
CPC ...
123 9016 ; 123 9017 ; 123 9044 ; 74519 ; 74559 ;
Abstract

A valve mechanism has a low-speed cam and a high-speed cam, a low-speed rocker arm operatively connected a valve and a high-speed rocker arm. A changeover device is provided for connecting the low-speed and high-speed rocker arm with each other so as to be rocked together by the high-speed cam. A roller follower is rotatably mounted on a shaft provided in the low-speed rocker arm. The high-speed rocker arm has a slipper engaging with the high-speed cam. The changeover device has a piston slidably mounted in the high-speed rocker arm so as to connect the high-speed rocker arm with the low-speed rocker arm.


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