| 摘要 |
PROBLEM TO BE SOLVED: To cope with high output and ripples in output by raising and adjusting the cooling capacity of a rotor. SOLUTION: A heat exchanger is constituted, being divided into a heat exchanger 12a for cooling of a rotor and a heat exchanger 12b for cooling a stator. In the case of stator, the calorific value is larger than that of the rotor, but the tolerable temperature can be any temperature as long as it is not higher than the heat resistance temperature of insulating material. In the case of the rotor, the calorific value is less than that of the stator, but it is better for the air temperature at the outlet of the heat exchanger to be as low as as possible.
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