Axial retention of permanent magnet rotor in high speed generator
US8917003B2 · kind B2 · utility
1Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2009 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | May 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K19/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet rotor for use on an electrical generator comprises a hub having an outer peripheral surface and an inner peripheral bore centered on an axis. The inner peripheral bore is provided with a screw thread at least over a portion of an axial dimension. Permanent magnets are mounted on the outer peripheral surface of the hub. A containment band is positioned radially outwardly of the magnets, holding the magnets and the hub together. The hub, a generator rotor incorporating the permanent magnet rotor, and a generator incorporating the permanent magnet rotor are also disclosed and claimed in this application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.