Patent · US Active

Centrifugal pump intake channel

US7798772B2 · kind B2 · utility

0Cited by

7References

9Claims

0Family size

Assignee

KSB Aktiengesellschaft · DE

Inventors

Stephan Bross · Frankenthal, DE
Isabel Goltz · Goslar, DE
Peter Amann · Åkersberga, SE

Key dates

Filing date	Jun 17, 2005
Grant date	Sep 21, 2010
Priority date	—
Expiry date	May 30, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/688
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A centrifugal pump with a housing having one or more impellers having an axial or semiaxial, open or closed design disposed therein and an intake channel mounted upstream of the first impeller. A plurality of grooves that are distributed around the circumference and extend in the direction of flow are arranged within the wall area of the intake channel. In the housing wall of the intake channel there is a closed annular wall area constructed between a point of entry of the first impeller and the proximate ends of the grooves, whereby the grooves are operatively connected exclusively with the space in the intake channel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.