Electric motor cooling jacket assembly and method of manufacture
US6300693A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2000 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Mar 2, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/1823
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cooling jacket assembly for cooling the stator of an electric machine. The assembly includes an annular cooling jacket body comprising coaxial inner and outer cylindric shells, heat transfer fins in the annular space between the inner and outer shells defining coolant flow channels, and end caps connected to opposite ends of the inner and outer shells. Coolant flows through an inlet in one of the end caps and is directed through the flow channels along at least one serpentine path to an outlet. The serpentine path comprises a plurality of parallel sections extending axially of the cooling jacket body. In one aspect of the invention, each section of the serpentine path comprises a group of two or more flow channels defined by a plurality of adjacent fins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.