Patent · US Active

Centrifugal pump

US8282367B2 · kind B2 · utility

13Cited by

6References

5Claims

0Family size

Assignee

BÜHLER MOTOR GMBH · DE

Inventors

Olai Ihle · Eckental, DE
Thomas Peterreins · Nuremberg, DE
Helmut Schmidt · Riegelsberg, DE
Armin Suttner-Reimann · Schwabach, DE

Key dates

Filing date	Apr 27, 2007
Grant date	Oct 9, 2012
Priority date	—
Expiry date	Feb 28, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/5893
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A centrifugal pump with an existing pump housing made of plastic material that can be processed through injection molding, the pump housing having a first housing section featuring a suction nozzle and a pressure nozzle, a second housing section supporting an electronically commutated DC motor and a split case, a motor housing section that closes a dry chamber separated from a wet chamber by the split case in which a stator and electronic components are arranged, and a permanent magnet rotor that is mounted in the wet chamber in such a way that it can rotate, thereby driving a pump impeller that reaches into the pump chamber. The electronic components are arranged on an electronic circuit board parallel to a base of the split case. The electronic circuit board is in heat conducting contact with the base.

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