Electric machine distributed cooling system and method
US11509178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2019 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Oct 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2766
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric machine including a distributed cooling system is disclosed. The electric machine includes a housing, a stator assembly, a rotor assembly, and a distributed cooling system. The distributed cooling system comprising at least one inlet, a first passage, a second passage, and a third passage. The first passage extending axially in a first direction through at least a portion of the rotor shaft to direct a flow of coolant in the first direction. A second passage fluidly coupled to the first passage extending in a second direction through at least a portion of the rotor shaft between a receiving end and a distributing end. At least one third passage fluidly coupled to the second passage extending between a first end and a second end and distributes coolant received from the second passage to at least one of the first end or the second end into the stator assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.