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:
Jul. 19, 1988
Filed:
Jun. 19, 1987
Wankel GmbH, Berlin, DE;
Abstract
An external axial rotary piston blower having a housing including a casing part and two side parts of which the casing part encompasses a cylindrical runway surfacing which is formed by two cylinders intersecting each other in a region of an inlet and an outlet and in which two identical pistons having at least one wing portion rotate among each other, such pistons having starting surfaces with a large radius running against a casing runway surfacing and respectively another piston having a starting surface with a small radius running correspondingly against a casing runway surfacing. Shafts of the pistons are offset or shifted in cold condition in a direction of a short housing axis toward the outlet and the housing on the side of the outlet is shorter in axial direction in cold condition than on the side of the inlet.