Motor
US11177727B2 · kind B2 · utility
0Cited by
5References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 12, 2016 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Nov 21, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K13/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor (100) includes an excitation stator (10), a salient-pole rotor (20) and an excitation rotor (30), any two of the excitation stator (10), the salient-pole rotor (20) and the excitation rotor (30) being rotatable relative to each other; and a switching actuator (50) configured to select at least one of the salient-pole rotor (20) and the excitation rotor (30) to serve as a rotor rotatable relative to the excitation stator (10) by selectively fixing relative positions of two of the excitation stator (10), the salient-pole rotor (20) and the excitation rotor (30).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.