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. 31, 1992
Filed:
May. 17, 1990
Dankwart Eiermann, Weissensberg, DE;
Roland Nuber, Lindau, DE;
Wankel GmbH, Berlin, DE;
Abstract
An arrangement of a cooling medium pump of a rotary piston internal combustion engine of trochoidal-type of construction with a fluid or liquid cooled housing, with which the cooling medium is conveyed first in common and parallel through cooling hollow chambers of the casing mantle part and of a side part in a common hollow chamber and from there is conveyed by way of a cooling medium pump into another side part and from there via a thermostat into a cooler arranged on the other side part and from there it is returned into the cooling medium circulation in the housing. The cooling medium pump is arranged in the casing mantle part and a propeller or impeller thereof is arranged in a cooling hollow chamber of the other side part. A speed of rotation control regulator is arranged on a shaft of the cooling medium pump for fresh air supply and a lubricating oil pump also can be arranged on a butt end of this shaft.