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:
Sep. 04, 2007
Filed:
Feb. 18, 2005
Wolfgang Baier, Obbach, DE;
Manfred Mäthner, Leingarten, DE;
Dankwart Eiermann, Weissenberg, DE;
Rudolf Klotz, Cottbus, DE;
Michael Schirmer, Zermsdorf, DE;
Wolfgang Baier, Obbach, DE;
Manfred Mäthner, Leingarten, DE;
Dankwart Eiermann, Weissenberg, DE;
Rudolf Klotz, Cottbus, DE;
Michael Schirmer, Zermsdorf, DE;
Wankel Super Tec GmbH, Cottbus, DE;
Abstract
A rotary combustion engine includes a peripheral housing, a front housing plate, a rear housing plate, a piston, and an eccentric shaft, where the piston rotates to form three working spaces separated from each other by the tips of the piston. Shaft seals and piston seals seal off the oil-carrying interior space of the internal combustion engine, and the piston is sealed off against the front and rear housing plates by arcuate strips, which are bounded radially on the inside by an envelope curve. The gas forming in the working space during the combustion phase is under high pressure. Some of this gas leaks around the arcuate strips and flows inward along the flat surfaces of the front and rear plates by way of ring-shaped channels in the piston, thus arriving in recessed areas inside the envelope curves, from which it is then escapes through vent channels.