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:
May. 03, 1977
Filed:
Oct. 06, 1975
Applicant:
Inventors:
Yasuyuki Morita, Hiroshima, JA;
Hiroshi Kodama, Hiroshima, JA;
Assignee:
Toyo Kogyo Co., Ltd., , JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01C / ; F01C / ;
U.S. Cl.
CPC ...
418 83 ; 418152 ; 418178 ; 418179 ; 123-801 ;
Abstract
A housing structure for a rotary piston internal combustion engine comprises at least one peripheral casing having an epitrochoidal surface formed therein, and a pair of end walls connected to each other with the peripheral casing situated therebetween. Portions of the end walls and peripheral casing which are simultaneously exposed to one of the working chambers in which the expansion stroke is taking place, that is, the expansion chamber, has therein respective heat insulating layers so as to substantially avoid a possible reduction of the temperature of the exhaust gas staying within the expansion chamber.