Patents by Inventor Emil D. Jarezynski

Emil D. Jarezynski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • HEAT TRANSFER ENHANCEMENT OF VENTILATION CHIMNEYS FOR DYNAMOELECTRIC MACHINE ROTORS
    Publication number: 20090295239
    Abstract: A cooling gas ventilation chimney is provided for an end region of a dynamoelectric machine having a rotor. A plurality of radial slots are provided in the rotor, and a plurality of coils are seated in the radial slots. The coils form radially stacked turns. The ventilation chimney includes one or more chimney slots that are defined in at least a portion of the radially stacked turns. The chimney slots extend in a substantially radial direction to the rotor, and at least a portion of a surface of the chimney slots is turbulated so as to have a roughened surface profile for enhanced heat transfer.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 3, 2009
    Inventors: Rebecca A. Nold, Christopher A. Kaminski, Emil D. Jarezynski, Norman J. Suguitan, Thomas Mancuso