Patent · US Expired

Electric motor, particularly a brushless direct current motor

US4647803A · kind A · utility

76Cited by

9References

24Claims

0Family size

Assignee

Papst Motoren GmbH & Co KG · DE

Inventors

Johann von der Heide · Winterthur, CH
Rolf Muller · St. Georgen, DE
Ernst-Moritz Korner · St. Georgen, DE

Key dates

Filing date	Jul 8, 1985
Grant date	Mar 3, 1987
Priority date	—
Expiry date	Jul 8, 2005

Classification

Technology area (CPC H)Electricity
CPC primaryH02K29/08
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Electric motor with a substantially cylindrical air gap between the stator and the rotor, the stator being fitted to a bearing support for the rotor shaft bearing. In order to reduce noise emissions, the stator is connected to the bearing support by means of an elastic damper and the stator and bearing support are separated from one another by an air gap adjacent at least part of their facing faces.

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