Patent · US Expired

Rotary pump assembly

US4230438A · kind A · utility

9Cited by

6References

4Claims

0Family size

Assignee

SIHI GmbH & Co. KG · DE

Inventors

Wilfried Lehmann · Heiligenstedten, DE
Hermann Muller · Bonn, DE
Bodo Baranek · Wilster, DE

Key dates

Filing date	May 2, 1979
Grant date	Oct 28, 1980
Priority date	—
Expiry date	May 2, 1999

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/0462
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A rotary pump assembly including a pump having a pump housing, a pump shaft disposed within the pump housing, a runner mounted concentrically on the pump shaft, a motor having a motor housing, and an intermediate housing interconnected between the pump- and motor-housings. The pump shaft has an end facing the motor, and the pump shaft end is formed as a hollow shaft fittingly mounted on the motor shaft. A bearing support is disposed in the intermediate housing for supporting the hollow pump shaft end, and is formed as an axial bearing with substantially no radial bearing capacity.

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