Stored field superconducting electrical machine and method
US4176291A · kind A · utility
29Cited by
8References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 27, 1977 |
| Grant date | Nov 27, 1979 |
| Priority date | — |
| Expiry date | May 27, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/878
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method and apparatus are provided for a stored magnetic field in a superconducting, rotating electrical machine. The apparatus includes a cylinder of superconductive material in which a magnetic field is trapped. The trapped magnetic field forms a magnetic circuit with an armature winding in the machine. The apparatus further includes means for generating a magnetic pattern field in the superconductive cylinder and means for cooling the cylinder so that a magnetic field can be trapped therein. The apparatus has application in both motors and generators and in both rotating and stationary magnetic fields used therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.