Rotor for an electrical machine with axial and radial cooling channels
US4641051A · kind A · utility
7Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1985 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Mar 11, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for an electrical machine having standard axial cooling channels extending the length of the rotor, feeding regularly spaced radial cooling channels. The cooling distribution of the air flow coming into the rotor from the frontal sides is improved by blocking off some of the flow into the central radial channels, which in standard designs are excessively cooled, and thereby forcing the air flow to cool other radial channels better. By more evenly distributing the cooling air flow, less air flow is required, thereby saving energy. The invention is readily adaptable to various rotor configurations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.