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Rotating Electric Machine

  • US 20070278869A1
  • Filed: 01/10/2006
  • Published: 12/06/2007
  • Est. Priority Date: 01/17/2005
  • Status: Active Grant
First Claim
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1. A rotating electric machine, comprising a stator including a stator core and a coil wound around said stator core, and provided with a cooling flow passage arranged such that at least a portion of said coil wound around said stator core is dipped in a fluid for cooling;

  • and a rotor arranged on an inner side of said stator core;

    wherein in said cooling flow passage, a fluid supply port is provided on an upper side of said stator core, and a fluid discharge port is provided on a lower side of said stator core;

    said cooling flow passage is provided in a state closed from said fluid supply port to said fluid discharge port;

    said rotating electric machine further comprising a flow rate determining unit provided at said fluid discharge port, for determining a quantity of discharge of said fluid so that said cooling flow passage is appropriately filled with said fluid.

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