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:
Sep. 20, 1983

Filed:

Jul. 20, 1981
Applicant:
Inventors:

Urataro Asaka, Sayama, JP;

Noboru Kurata, Sayama, JP;

Masanori Masumura, Sayama, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
1231 / ; 123 / ; 1231 / ;
Abstract

A rotary valve in an internal combustion engine in which the rotary valve proper is formed so as to be hollow and cylindrical and arranged in such a manner that its inner space forms a portion of an intake passage and a portion of an exhaust passage, which portions are separated from each other. In this manner, the valve proper, exhaust passage, and a housing are effectively cooled, and sealing for the rotary valve proper is made effectively and positively.


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