Liquid cooled disc machines
US4190780A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1977 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Nov 21, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/197
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cooling system for an axial air gap dynamoelectric machine having a discoidal rotor provides liquid cooling to the stator or rotor or both. The cooling system is arranged so that removal of a few parts will either expose the length of the liquid conducting passages or expose the end of a straight liquid conducting portion of a passage so that the cooling passages may be easily cleaned. In one form for stator cooling there are grooves in the outer wall of the stator with a cover plate over the grooves to form passages. An inlet and an outlet are provided in the cover plate. Removal of the cover plate exposes the groove for cleaning. In another form for rotor cooling the discoidal rotor has a metallic hub with pairs of straight holes extending through the hub generally parallel to the axis of rotation. A hub ring on one side of the hub has short grooves, forming with the hub, passages connecting each pair of straight holes. An end plate on the other side of the hub has two radially extending holes. One of these communicates with one of the straight holes in one pair and the other with an adjacent straight hole in an adjacent pair. This end plate also has grooves, forming with the h…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.