| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dynamo-electric machine which has a bearing that surely prevents the level of oil liquid in the vicinity of a bearing from dropping by simple structure. <P>SOLUTION: To achieve the above purpose, a plurality of connecting pipes, which return lubricant within a bearing oil tank from the outside lower section of a thrust runner section provided integrally with a vertical rotating shaft to a first bearing section, are arranged in its circumferential direction around the vertical rotating shaft, and besides this machine is provided with a means which drives lubricant from the lower section of the bearing oil tank to the bearing section through the connecting pipe. <P>COPYRIGHT: (C)2009,JPO&INPIT |
