Methods and systems for cooling an electric machine
US12046955B2 · kind B2 · utility
0Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2022 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Jun 2, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided to cool an electric machine. In one embodiment, an electric machine includes a rotor assembly that includes a rotor shaft and a stack of rotor laminations. The rotor assembly further includes one or more nozzles designed to receive pressurized coolant from a rotor shaft coolant passage and deliver the coolant to a set of open coolant channels in the stack of rotor laminations, wherein the set open coolant channels includes outlets that are profiled to direct the coolant towards a groove in a balancing plate that is coupled to the rotor assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.