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:
Apr. 21, 2015

Filed:

Mar. 02, 2012
Applicants:

Wolfgang Weber, Eschwege, DE;

Tobias Albert, Kraichtal, DE;

Inventors:

Wolfgang Weber, Eschwege, DE;

Tobias Albert, Kraichtal, DE;

Assignee:

E.G.O. Elektro-Gerätebau GmbH, Oberderdingen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/46 (2006.01); F04D 29/44 (2006.01);
U.S. Cl.
CPC ...
F04D 29/468 (2013.01); F05D 2240/12 (2013.01); F04D 29/445 (2013.01); F04D 29/448 (2013.01);
Abstract

A flow-guiding device for an impeller radial pump is arranged radially outside the impeller and extends in a ring-shaped manner with a circumferential carrier ring on which several guide blades are arranged. These latter are formed so as to be resilient in such a manner that when there is a small fluid flow a blade angle points more in the radial direction at an angle of approximately 70° with respect to the longitudinal center axis of the pump. When there is strong fluid flow, the angle becomes smaller and the guide blades bend in a resilient manner at least in regions such that they stand at a smaller angle of between 30° and 40° with respect to the longitudinal center axis of the pump. The fluid is conveyed better in the pump chamber in this way.


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