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:
Jun. 20, 1989
Filed:
Jan. 20, 1988
Applicant:
Inventors:
Hans Baumgartner, Viersen, DE;
Manfred Brandstadter, Dusseldorf, DE;
Ulrich Henke, Ubach Palenberg, DE;
Assignee:
Pierburg GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C / ; F01C / ;
U.S. Cl.
CPC ...
418150 ; 418168 ; 418178 ;
Abstract
In a rotary piston engine which can be produced by simple manufacturing techniques and which has an outer and an inner rotor which rotate in a housing about different axes of rotation, wherein strip-like projections on inwardly extending engagement members generate the contour of the piston of the inner rotor, whereby a well-defined contact seal can be realized in use, the projections have two sealing corners adjacent to but spaced from one another in the direction of rotation of the outer rotor.