Permanent magnet electrical machines
US4216400A · kind A · utility
9Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1978 |
| Grant date | Aug 5, 1980 |
| Priority date | — |
| Expiry date | Apr 21, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K23/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet electrical machine includes a plurality of groups of permanent magnets which are magnetically coupled by a surrounding generally cylindrical housing of magnetic material. The magnets have flat, parallel, spaced pole faces and are arranged side by side with pole faces of the same polarity from the axis of the housing. An armature is rotatably mounted in the housing within the magnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.