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:
Aug. 29, 1995

Filed:

Dec. 14, 1993
Applicant:
Inventors:

Shinichi Murata, Kyoto, JP;

Noriyuki Miyamura, Kyoto, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ; F01L / ;
U.S. Cl.
CPC ...
123 9016 ; 123 9065 ; 123 9017 ;
Abstract

A valve system is provided for driving engine valves arranged in an internal combustion engine. The valve system comprises a valve drive arm member pivotally supported on a side of a main body of an engine while being maintained in contact with end portions of the engine valves, a first rocker arm for rocking the valve drive arm member, a second rocker arm for causing the valve drive arm member to undergo rocking at an amplitude greater than rocking by the first rocker arm, and coil springs for urging the engine valves in closing directions, respectively. Each coil spring is interposed between a retainer disposed fixedly on the corresponding engine valve and a cylinder head. Each coil spring is designed to avoid interference with a rocking path of the corresponding rocker arm on a side of the coil spring.


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