Stator for a rotary electric machine having flow channels for passing a cooling fluid
US8427018B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Dec 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator for a rotary electric machine, the stator including a jacket and a stack of stator laminations placed inside the jacket, subassemblies of laminations of the stack having extensions with flow channels for passing a cooling fluid therethrough, the subassemblies being disposed in such a manner that fluid flowing along the stack is subjected to a succession of passes within the channels and of passes through wide zones extending between the channels, the stack laminations being arranged in such a manner that for at least one extension, and better for the majority, or even all of the extensions of a subassembly, the flow section made available to the flow of cooling fluid within the extension is greater than the flow section defined by the space extending radially between the extensions and the jacket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.