Arrangement for cooling the rotor of an electric machine, especially a turbine type generator
US4228374A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1978 |
| Grant date | Oct 14, 1980 |
| Priority date | — |
| Expiry date | Sep 21, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/878
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an arrangement for cooling the rotor of an electric machine, especially a turbine-type generator. The rotor contains a superconducting field winding, a co-rotating cold shield and a co-rotating mixing chamber for receiving a phase mixture of a coolant. A first coolant stream with a liquid coolant is further provided for cooling the field winding and a second coolant stream for cooling the cold shield. A substream derived from the first coolant stream after the latter has passed through the field winding is admixed to the second coolant stream and that a corresponding connecting line is provided with a throttling device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.