Electromagnetic motor or generator with two rotors, four stators and an integrated cooling system
US11211853B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2019 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jan 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2203/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent-magnet synchronous motor or generator with at least one rotor (2) and at least one stator (3, 8). The motor includes two rotors (2), four stators (3, 8) and a cooling system (7, 7a). The cooling system includes three cooling circuits (7, 7a), i.e. two outer circuits (7) which are each accommodated in a longitudinal outer wall of a casing (8), adjacent to an outermost stator (3, 8), for cooling said outermost stator (3, 8), and an intermediate circuit (7a) located between the two innermost stators (3, 8) in the motor for simultaneously cooling said two stators (3, 8), the central shaft (5) being common to the two rotors (2) which are connected to the central shaft (5) by mechanical means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.