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FAN MOTOR COOLING

  • US 20130022443A1
  • Filed: 07/18/2011
  • Published: 01/24/2013
  • Est. Priority Date: 07/18/2011
  • Status: Active Grant
First Claim
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1. A fan assembly impeller, comprising:

  • an impeller that moves air along a secondary flow path when driven by a motor, the motor also driving a fan rotor to move air along a primary flow path different than the secondary flow path, wherein air moving along the primary flow path moves in a first direction, and air moving along the secondary flow path moves in a second direction opposite the first direction.

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