Synchronous electrodynamic machine with permanent magnets and cooled by a liquid
US4498024A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1983 |
| Grant date | Feb 5, 1985 |
| Priority date | — |
| Expiry date | Apr 21, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2205/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention has as its object an electrodynamic machine (10) cooled by a liquid contained in a housing (12) in which is mounted a stator (14) whose inner peripheral wall (16) works with the outer peripheral wall (20) of a rotor mounted to turn in the housing (12) to define between them a gap (22) in which said fluid circulates. The machine according to the invention is characterized in that the peripheral walls (16, 20) are cylindrical and wherein their surface in contact with the cooling liquid is continuous and smooth so as to minimize the energy losses due to the laminar flow of the cooling liquid. Application to the cooling of electrodynamic machines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.