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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.:

US 9887603 B1

PDFFull Text
Date of Patent:
Feb. 06, 2018

Filed:

Dec. 20, 2012

Wet-running centrifugal pump

Applicant:

Grundfos Holding A/s, Bjerringbro, DK;

Inventors:

Therkel Damm, Silkeborg, DK;

Søren Bøndergaard, Skanderborg, DK;

Assignee:

GRUNDFOS HOLDING A/S, Bjerringbro, DK;

Attorney:

McGlew and Tuttle, P.C.

Primary Examiner:

Devon Kramer

Assistant Examiner:

Connor Tremarche

Int. Cl.
CPC ...
F04D 13/06 (2006.01); F04D 29/046 (2006.01); F04D 29/08 (2006.01); F04D 1/00 (2006.01); H02K 5/22 (2006.01); H02K 5/04 (2006.01); H02K 5/128 (2006.01); H02K 9/22 (2006.01); H02K 5/167 (2006.01); F04D 29/58 (2006.01); H02K 7/08 (2006.01);
U.S. Cl.
CPC ...
H02K 5/22 (2013.01); F04D 1/00 (2013.01); F04D 13/0606 (2013.01); F04D 13/0633 (2013.01); F04D 13/0686 (2013.01); F04D 13/0693 (2013.01); F04D 29/046 (2013.01); F04D 29/086 (2013.01); F04D 29/5813 (2013.01); H02K 5/04 (2013.01); H02K 5/128 (2013.01); H02K 5/1672 (2013.01); H02K 5/225 (2013.01); H02K 9/22 (2013.01); H02K 7/083 (2013.01); H02K 2205/09 (2013.01);
Abstract

A wet-running centrifugal pump includes an electric motor () and a centrifugal pump () which is driven thereby. The electric motor () has a rotor () which is rotatably arranged within the stator (). A canned pot (), which carries a motor-side bearing for the rotor (), is provided between the rotor and the stator. Moreover, a bearing plate () is provided, which carries a pump-side bearing for the rotor (), wherein the bearing plate () is fixed on the housing side, and in the region of the pump-side bearing immerses into the canned pot. A radial seal () is provided between the bearing plate () and the canned pot ().

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