Cross-shaped rotor shaft for electrical machine
US6590311B1 · kind B1 · utility
7Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2000 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Jun 9, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/527
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for a rotating electrical machine includes pole faces arranged at locations on either side, respectively, of the rotor D-axis and fins arranged along the rotor Q-axis. The fins increase a section bending moment of inertia along the Q-axis, thereby reducing the need for deep slots in the pole faces extending along the D-axis, resulting in better symmetry of bending stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.