Generator motor wedge with wide arm span and reduced stress levels
US9866085B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2014 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | May 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wedge for use in an electric machine has a central leg and arms extending in both circumferential directions. The wedge has a radially outer full surface defining a cylindrical aperture through an axial length, and ledge surfaces at each axial end of the full surface. A curved merging portion on an outer surface of the arms merges into a curved contact surface. A rotor, a machine and a method are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.