Patent · US Expired

Electric machine with a wrapped winding cooled to a low temperature

US7339293B2 · kind B2 · utility

3Cited by

7References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Frank · Erlangen, DE
Adolf Kühn · Haag in Oberbayern, DE
Peter Massek · Forchheim, DE
Peter Hasselt · Erlangen, DE

Key dates

Filing date	Nov 21, 2003
Grant date	Mar 4, 2008
Priority date	—
Expiry date	Nov 13, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E40/60
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric machine has a rotor that is rotatable about an axis of rotation, and an especially superconducting winding which is to be cooled to a low temperature. The winding is enveloped by a securing means with a wrap. The outer contour of the wrap of the securing means increases from a smaller outside diameter to a greater outside diameter in the axial direction. The wrap is surrounded in a force-fitting manner by several securing rings which are arranged one behind another and have an inside diameter which conforms to the respective outside diameter of the outer contour.

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