Homopolar, flux-biased hysteresis bearingless motor
US10177627B2 · kind B2 · utility
9Cited by
77References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Mar 6, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Described is a bearingless motor based upon a homopolar flux-biased magnetic bearing for force generation and a hysteresis motor for torque generation. The bearingless slice motor levitates and rotates a ring-shaped rotor made of a semi-hard magnetic material. The rotor is biased with a homopolar permanent-magnetic flux, on which 2-pole flux can be superimposed to generate suspension forces. Torque is generated by a hysteretic coupling between the rotor and a rotating multi-pole stator field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.