| 摘要 |
<p>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 hub passages which interconnect a straight hole with an adjacent straight hole in an adjacent pair of holes. This forms a continuous cooling passage from one of the radially extending holes to the other. A rotating union provides a connection for introducing a cooling liquid to one radially extending hole and removing the liquid from the other.</p> |
