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:
Nov. 13, 1979
Filed:
Jul. 11, 1977
Wulf Leitermann, Bad Wimpfen, DE;
Audi NSU Auto Union Aktiengesellschaft, Neckarsulm, DE;
Abstract
A rotary-piston machine, in particular a rotary-piston combustion engine of trochoid type is provided. The machine includes a housing composed of at least one shell and at least two parallel end pieces and is traversed perpendicular to the end pieces by an eccentric shaft mounted in the end pieces. A liquid-cooled polygonal piston is rotatably mounted on the eccentric of the shaft. The piston contains cavities provided with at least one aperture near their radially inner portion. The eccentric shaft has an axial bore traversed by the liquid and communicating by way of transverse holes with the bearing and with at least one nozzle. The orifice of the nozzle is directed at the aperture of the piston cavities. Controls are arranged in the axial bore of the eccentric shaft for controlling the communication between the axial bore and the nozzle according to the engine load and/or the temperature of the liquid.