Patent · US Expired

Wet-type rotor pump

US6939115B2 · kind B2 · utility

7Cited by

12References

8Claims

0Family size

Assignee

PIERBURG GMBH · DE

Inventors

Andreas Knoll · Hartha, DE
Michael Weinert · Leisnig, DE

Key dates

Filing date	Aug 2, 2002
Grant date	Sep 6, 2005
Priority date	—
Expiry date	Sep 10, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D13/0633
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A wet-type rotor pump which is particularly suitable for feeding coolant in motorcar engines comprises a pump wheel. By the pump wheel, a feed medium is fed through an intake channel into a discharge channel. Via a common shaft, a motor armature of an electric motor is connected with the pump wheel. The motor armature is surrounded by a slit pot, feed medium flowing around the motor armature to cool it. The shaft is supported by two radial bearings, one radial bearing being arranged in a supporting element. The supporting element that is arranged within the intake channel further comprises an abutting surface on which a flow surface of the pump wheel abuts to take up axial forces.

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