Electrical machine cooled by a dual-flow impeller
US10790726B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2017 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Sep 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an assembly (1000) comprising an electrical machine (100) comprising: a stator (9) having windings forming coils (106), a rotor (103), a shaft (101) rotating the rotor (103), and an impeller (1) for cooling the electrical machine, said cooling impeller (1) comprising at least two crowns (2, 21, 22), including a first crown (21) and a second crown (22), each crown (2, 21, 22) comprising blades (3), the blades (3, 31) of the first crown (21) of the cooling impeller (1) being arranged so as to generate the circulation of a cooling fluid flow in a first direction (F1), and the blades (3, 32) of the second crown (22) being arranged so as to generate the circulation of the cooling fluid flow in a second direction (F2), the second direction (F2) opposing the first direction (F1). Said invention is applicable to motor vehicles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.