Efficient high-speed electric device using low-loss materials
US7230361B2 · kind B2 · utility
66Cited by
19References
43Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 2006 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | May 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates generally to an electric device, such as an electric motor, a generator, or a regenerative motor, having a wound stator core made from advanced low-loss material. In preferred embodiments, the electric device is an axial airgap-type configuration. The invention provides an electric device having a high pole count that operates at high commutating frequencies, with high efficiency and high torque and power densities. Advanced low-loss materials exploited by the present invention include amorphous metals, nanocrystalline metals, and optimized Fe-based alloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.