Patent · US Expired

Feed pump

US6942446B2 · kind B2 · utility

1Cited by

11References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Zlatko Penzar · Dietzenbach, DE
Hans-Dieter Wilhelm · Neu-Anspach, DE

Key dates

Filing date	Dec 13, 2001
Grant date	Sep 13, 2005
Priority date	—
Expiry date	Dec 13, 2021

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D5/006
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a feed pump (2) that is configured as a side-channel pump with a plurality of identically designed feed chambers (6, 7) with outlet channels (22, 23) that are disposed opposite one another, thereby eliminating the radial forces acting upon the impeller (4) of the feed pump (2). The feed pump (2) according to the invention is especially wear-free and has a very high degree of efficiency.

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