Patents Examined by Naishadh N Dasai
  • Patent number: 7791238
    Abstract: A motor driven assembly includes a motor having a motor shaft mounted for rotation about a rotational axis and a rotor radially located about the shaft. The motor drives a compressor that receives air from the motor, compresses the air, and circulates the compressed air to a space. The motor includes a first cooling flow passage and a second cooling flow passage that each receive air to provide internal cooling of the motor. A portion of the air compressed in the compressor is diverted from the compressor to a heat exchanger. The heat exchanger cools the compressed air from before the air circulates into the first cooling flow passage to cool the motor. The second cooling flow passage receives air from the environment surrounding the motor driven assembly to further cool the motor.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: September 7, 2010
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Debabrata Pal, Laurence D. Vanek, Daniel M. Saban