Electrical machine including a magnetic flux weakening apparatus
US10263500B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 1, 2018 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Jan 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric machine includes a rotor having a magnetic field generating device for generating a magnetic flux. A flux changing apparatus of the electric machine includes an axially displaceable body that is disposed axially outside the magnetic field generating device for changing a magnetic flux within a gap between the rotor and a stator in dependence upon an axial position of the body relative to the rotor. The flux changing apparatus includes an adjusting device for axially adjusting the axial position of the body relative to the rotor. The adjusting device includes an actuator and an adjusting element. The actuator acts on the body via the adjusting element. The adjusting element engages the body and/or the actuator in such a manner that a rotational movement of the body can be decoupled from the adjusting element, a housing of the electric machine, the rotor and/or the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.