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:
Jan. 31, 2017

Filed:

May. 22, 2013
Applicant:

Sulzer Pumpen Ag, Winterthur, CH;

Inventors:

Paul Meuter, Seuzach, CH;

Thomas Welschinger, Radolfzell, DE;

Assignee:

Sulzer Management AG, Winterthur, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/046 (2006.01); F04D 29/047 (2006.01); F04D 29/06 (2006.01);
U.S. Cl.
CPC ...
F04D 29/046 (2013.01); F04D 29/0473 (2013.01); F04D 29/061 (2013.01);
Abstract

A pump for conveying a pump fluid, wherein the pump fluid provided at an inlet pressure at a low pressure side of the pump can be conveyed in the operating state to a high pressure side of the pump rotor by means of a pump rotor rotatably supported about an axis of rotation in a pump stator and wherein a rotor shaft is arranged with the pump rotor at it drive bearing formed as a shaft bearing, characterized in that a lubricating film which is formed from a lubricating fluid formed from the pump fluid can be formed on a drive side of the rotor shaft between the rotor shaft and a drive bearing in a lubricating ring gap, with a lubricant line being provided such that the lubricating fluid can be supplied to the lubricating ring gap between the rotor shaft and the drive bearing.


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