Gas-cooled electrical machine having an axial fan
US6392320B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Nov 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a gas-cooled electrical machine having an axial fan (12a) and a downstream guidance mechanism, arranged downstream of the axial fan, in order to raise the pressure of a cooling gas, the cooling gas is driven in a forced manner by means of the axial fan from an inlet area (41), which is bounded by an inner casing (21) and a partition wall (20) arranged in the radial plane of the axial fan (12a), into an outlet area (42) which is bounded by the partition wall (20) and an outer casing (37). In this case, the downstream guidance mechanism is designed as a deflection diffusor (36) in order to deflect a cooling-gas flow (39) from an essentially axial flow direction to an essentially radial flow direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.