| 摘要 |
PURPOSE:To alleviate a stress due to thermal elongation difference by cooling a hollow stator winding connected to a jumper wire and a hollow stator winding not connected to the jumper wire with the same coolant. CONSTITUTION:A sub tube 2a and an orifice 13 are formed between a main tube 2 and a water feeder, and coolant from the feeder is flowed to the tube 2 through the tube 2a, a jumper wire 6 and the orifice 13 in parallel. The temperatures of the coolants supplied to hollow stator windings 3a, 3b become the same temperature, and a stator winding of a rotary electric machine which alleviates a stress due to the thermal elongation difference of the winding 3b connected to the jumper wire 6 can be obtained. |
