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:
Dec. 26, 2000
Filed:
Feb. 01, 1999
Applicant:
Inventors:
Franz Arbogast, Heidenheim, DE;
Peter Peiz, Heidenheim, DE;
Assignee:
Voith Turbo GmbH & Co., KG, Heidenheim, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C / ;
U.S. Cl.
CPC ...
418168 ; 418124 ; 418116 ; 418140 ; 74462 ;
Abstract
An internal geared wheel pump that does not have a crescent shaped piece. The pump has an internal geared wheel that meshes with a pinion. The pinion and geared wheel are mounted in a rotatable manner in a housing that has a suction connection and a pressure connection. The geared wheel has passages that produce each time a conductive connection between the base of the tooth and the envelope surface of the geared wheel. Conductive connections are produced between the bearing flanks of the teeth of the geared wheel or the teeth of the pinion and the radial boreholes of the geared wheel.