Permanent magnet rotor
US4625135A · kind A · utility
70Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1985 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Jun 19, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet rotor having a unitary aluminum casting surrounding magnets mounted on the shaft which has favorable heat transfer, performance, and cost characteristics, and which may be constructed by the accompanying method. Spacers and rings surrounding the permanent magnets are eliminated by the aluminum casting. Pockets for the permanent magnets are cast into the aluminum. A non-magnetic outer sleeve overlies the shaft, magnets and aluminum layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.