Magnetic gearbox with flux concentration halbach rotors
US11128209B2 · kind B2 · utility
1Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2018 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jun 13, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K49/102
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This application relates to translating mechanical energy from a low-speed rotor to a high-speed rotor or vice versa in a magnetic gearbox. More specifically, this application discloses various embodiments of a coaxial magnetic gearbox with flux concentration Halbach rotors. In certain implementations, the device further comprises a circular back iron (or other ferromagnetic material) disposed concentrically along the axis of the cylindrical magnetic gearing device. In such embodiments, this flux concentration back iron (or ferromagnetic pole) improves the torque density and can also help retain the magnets in place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.