Patents by Inventor John J. Pfligler

John J. Pfligler 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).

  • Impingement cooled foil bearings in a gas turbine engine
    Patent number: 6286303
    Abstract: A foil bearing assembly for use in a gas turbine engine is provided. The assembly includes an annular bearing carrier mounted to the housing of the engine. An annular foil carrier disposed within the bearing carrier and carrying a plurality of overlapping foils that engage an outer surface of a journal. The journal is mounted to the rotating assembly of the engine to define a cavity. Disposed in the cavity is a showerhead having an inlet for receiving a flow of cooling air and a plurality of orifices for providing impingement cooling of the inner surface of the journal. The use of a showerhead in a thrust foil bearing is also disclosed.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: September 11, 2001
    Assignee: Allied Signal, Inc.
    Inventors: John J. Pfligler, Carl A. Larson, George R. Cunnington