Patent · US Expired

Cooling apparatus for an AC generator

US5670835A · kind A · utility

1Cited by

9References

5Claims

0Family size

Assignee

J.M. Voith GmbH · DE

Inventors

Robert Muller · Monsheim, DE
Uwe Muhlberger · Heidenheim, DE
Bernhard Wust · Heidenheim, DE

Key dates

Filing date	Sep 26, 1996
Grant date	Sep 23, 1997
Priority date	—
Expiry date	Sep 26, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH02K2201/12
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A cooling apparatus is provided for an AC generator, particularly for a transverse-flow generator having a stator with at least one armature winding, as well as a rotor disposed opposite the armature winding. Collector rings are secured to a carrier disk attached to a rotor shaft. The collector rings have a plurality of polarized magnets and magnetizable collector elements in alternating sequence disposed therein. At least one cooling channel through which a coolant can flow is provided in the vicinity of the carrier disk. The cooling channel is separated from the carrier disk only by a channel cover which has a minimal thickness and by the air gap between the rotor and the stator.

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