Patent · US Active

Electrical machine having cooling system for a superconducting rotor winding

US8063520B2 · kind B2 · utility

1Cited by

3References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Frank · Erlangen, DE
Peter van Hasselt · Erlangen, DE

Key dates

Filing date	Jun 24, 2008
Grant date	Nov 22, 2011
Priority date	—
Expiry date	Jun 24, 2028

Classification

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

Abstract

The invention relates to an electric machine (2) comprising a rotor (6) that contains a shaft (18, 22) that is located, when in operation, in the ambient temperature range, and a superconducting rotor winding (30) that is cooled to a cryogenic temperature when in operation and which is arranged on the shaft (18, 22). Said machine also comprises a cooling system (8) for cooling the rotor winding (30), said system comprises a compensation pressure reservoir (50, 64) for a cooling medium (42). In said electric machine, the compensation pressure reservoir (50, 64) is arranged on the shaft (18, 22).

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