Superconducting electric rotating machine and its thermal insulation
US4808864A · kind A · utility
18Cited by
13References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Sep 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E40/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electric rotating machine has a stator and a rotor with superconducting windings placed within separate cryogenic enclosures for the stator and the rotor. The cryogenic enclosures are in turn placed within evacuated thermal insulation enclosures separated by the annular clearance space which is at low pressure, thus considerably simplifying the arrangements required for dynamic sealing of motor bearings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.