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Rotating electric machine and cooling method thereof

  • US 20040189110A1
  • Filed: 04/09/2004
  • Published: 09/30/2004
  • Est. Priority Date: 09/03/1999
  • Status: Active Grant
First Claim
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1. A rotating electric machine comprising:

  • a plurality of ventilating passages formed between a stator frame and a stator iron core;

    coolers which cool a coolant being provided in said plurality of said ventilating passages;

    a ventilating circuit in which at least a portion of the coolant which is cooled by one of said coolers is further cooled by another of said coolers, and is allowed to flow to a central portion in an axial direction of said stator iron core in a direction from an outer peripheral side to an inner peripheral side of said stator iron core at least via one ventilating passage of said plurality of ventilating passage which communicates with said central portion in the axial direction of said stator iron core.

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