Patents by Inventor Alan D. Bessette

Alan D. Bessette 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).

  • Vane platform trailing edge cooling
    Patent number: 6722138
    Abstract: The compressor discharge air that normally leaks from the high pressure compressor hub and a portion of the compressor discharge air that is utilized for component cooling, is re-routed to by-pass the engine's TOBI to flow into a manifold defined by the stator support structure and a foot of the first turbine vane to the inner diameter platform of the first turbine vane of the high pressure turbine section to cool the aft end thereof before being discharged into the engine's main gaseous stream.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: April 20, 2004
    Assignee: United Technologies Corporation
    Inventors: Friedrich O. Soechting, Alan D. Bessette
  • Vane platform trailing edge cooling
    Publication number: 20030167775
    Abstract: The compressor discharge air that normally leaks from the high pressure compressor hub and a portion of the compressor discharge air that is utilized for component cooling, is re-routed to by-pass the engine's TOBI to flow into a manifold defined by the stator support structure and a foot of the first turbine vane to the inner diameter platform of the first turbine vane of the high pressure turbine section to cool the aft end thereof before being discharged into the engine's main gaseous stream.
    Type: Application
    Filed: December 13, 2000
    Publication date: September 11, 2003
    Inventors: Friedrich O. Soechting, Alan D. Bessette
  • Combined turbine stator cooling and turbine tip clearance control
    Patent number: 5048288
    Abstract: The outer air seal of a gas turbine engine is continuously cooled by compressor discharge air (primary) and a by-pass line (secondary) which can be throttled or shut off, augments cooling during high power conditions and is throttled or shut off at reduced power conditions, allowing the casing scrubbed by fan discharged air to shrink and reduce the clearance of the tips of the turbine blades. The air from the continuous flow (primary) line is routed to the outer air seals in a manner to avoid scrubbing the engine case.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: September 17, 1991
    Assignee: United Technologies Corporation
    Inventors: Alan D. Bessette, Daniel O. Davies, John L. Shade