Rotor for electric machine having a sleeve with segmented layers
US8247938B2 · kind B2 · utility
12Cited by
290References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2009 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Oct 22, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for an electrical machine includes an elongate rotor core assembly comprising a rotor core and a plurality of permanent magnets arranged in a plurality of rings around the rotor core. A composite sleeve resides around the rotor core assembly. The sleeve includes an outer layer and a segmented layer beneath the outer layer. The outer layer includes a plurality of discrete, non-overlapping circumferential bands of composite material positioned orthogonal to a longitudinal axis of the rotor core assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.