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. 03, 2009
Filed:
Aug. 29, 2002
Applicants:
Sabine Burhenne, Bretten, DE;
Johannes Deichmann, Alheim-Sterkelshausen, DE;
Bernd Jaeger, Fritzlar, DE;
Karsten Meiser, Frielendorf, DE;
Inventors:
Sabine Burhenne, Bretten, DE;
Johannes Deichmann, Alheim-Sterkelshausen, DE;
Bernd Jaeger, Fritzlar, DE;
Karsten Meiser, Frielendorf, DE;
Assignee:
Siemens Aktiengesellschaft, München, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a supply pump embodied as a side channel pump, whereby several sections (-) forming the cross-section of a supply chamber () each comprise radii. The origins of the external radii are arranged on the front face of a pump housing facing the one rotor. The sections (-) comprise common tangents in the adjacent regions thereof. A particularly high efficiency for the supply pump can thus be guaranteed.