Cooling device for an electric rotary machine
US3932778A · kind A · utility
18Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1974 |
| Grant date | Jan 13, 1976 |
| Priority date | — |
| Expiry date | Apr 9, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plurality of salient poles and a stator are adapted to be cooled only by cooling gas which is passed through a plurality of fluid passageways formed in a yoke of a rotor. By the arrangement that all the cooling gas discharged through the fluid passageways is used for cooling the rotor and the stator, cooling efficiency can be increased due to enhanced flow characteristics of the cooling gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.