Cooling of discoidal dynamoelectric machines
US4059777A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1975 |
| Grant date | Nov 22, 1977 |
| Priority date | — |
| Expiry date | Sep 15, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An axial gap, disc type, dynamoelectric machine has a stator housing, field pole structures located inside the housing at angularly spaced intervals, and a discoidal rotor. The field pole structures alternate with interpolar spaces. Fluid directing means are provided for inducing vortical fluid flow enhances heat transfer from the rotor to the housing. This invention relates to means for improving the cooling of axial gap, disc-type dynamoelectric machines, and in particular to means for inducing vortical flow of the cooling fluid in the interpolar spaces. Dynamoelectric machines of the general character suitable for embodiment of this invention are of the axial gap, disc-type such as, for example, the machine described in the applicant's United States application Ser. No. 534,058 filed Dec. 26, 1974, Eric Whiteley. This particular machine has a stator housing, a plurality of field pole structures located inside the housing at angularly spaced intervals so as to define an interpolar space between every adjacent pair of pole structures, and a rotor consisting essentially of a winding laid out in a flat pattern and having its conductors bonded together by means of a resinous material…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.