| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamoelectric machine which is small in size and whose transmission part can be fed with oil. SOLUTION: This dynamoelectric machine has a rotor 11, a stator 12, and a casing 18. A planetary roller mechanism comprising a sun roller 15, a planetary roller 16, a ring roller 13, and a carrier 17, is placed inside the rotor 11 to transmit a driving force of the rotor 11 from a power shaft 19 to the outside. Oil is sealed inside the rotor 11 or inside the casing 18. Or, the planetary roller mechanism is placed inside the casing 18 or outside the rotor 11 and oil is sealed in the casing 18.
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