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.

Date of Patent:
Sep. 25, 2018

Filed:

Feb. 08, 2013
Applicant:

Sulzer Pumpen Ag, Wintherthur, CH;

Inventors:

Paul Meuter, Seuzach, CH;

Thomas Welschinger, Radolfzell, DE;

Assignee:

Sulzer Pumpen AG, Winterthur, CH;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 13/06 (2006.01); F04D 29/06 (2006.01); F04D 7/04 (2006.01);
U.S. Cl.
CPC ...
F04D 29/06 (2013.01); F04D 7/04 (2013.01); F04D 29/061 (2013.01); F04D 13/062 (2013.01); F04D 13/0606 (2013.01);
Abstract

Disclosed is a pump having a pump rotor rotatably supported about an axis of rotation in a pump stator. In this respect, the pump rotor is designed and is arranged above a rotor shaft in a shaft bearing such that a lubricating film of a lubricating fluid formed from the pump fluid can be formed in a lubricating ring gap between the rotor shaft and the shaft bearing. In accordance with the invention, a separation device is provided at the rotor shaft by which a predefinable quantity of the ingredient can be separated from the pump fluid by means of a centrifugal force in the operating state for providing the lubricating fluid.


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