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:
Mar. 21, 1978
Filed:
Jun. 17, 1975
Applicant:
Inventors:
Anton Mokratschek, Zuttlingen, DT;
Max Ruf, Obereisesheim, DT;
Horst Ehemann, Bad Friedrichshall, DT;
Assignee:
Audi NSU Auto Union Aktiengesellschaft, Neckarsulm, DT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01C / ;
U.S. Cl.
CPC ...
418 75 ; 418142 ;
Abstract
The improved sealing grid for a rotary internal combustion engine of the Wankel type comprises a transfer passage means intermittently communicating the space between the inner and outer seals with the working chamber in the exhaust phase, to pass spent combustion gas from the latter to said space and thereby intermittently pressurize the space behind the inner seal and thereby urge the latter into sealing contact with the adjacent wall.