Patents by Inventor Elmer Greenbank

Elmer Greenbank 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).

  • Gas turbine engine mechanical-electrical hybrid fuel delivery system
    Patent number: 9885287
    Abstract: A gas turbine engine fuel delivery system includes a mechanically-driven fuel pump, an electrically-driven fuel pump, and an engine control. The mechanically-driven fuel pump is adapted to receive a drive torque from a gas turbine engine draw fuel into its fuel inlet and discharge the fuel from its fuel outlet. The electrically-driven fuel pump has a first fuel inlet/outlet that is in fluid communication with the mechanically-driven fuel pump fuel inlet, and also has a second fuel inlet/outlet. The engine control is responsive to an engine start signal to cause the electrically-driven fuel pump to be temporarily energized to pump fuel from the first fuel inlet/outlet to the second fuel inlet/outlet, and is responsive to an engine shutdown signal to cause the electrically-driven pump to be temporarily energized to pump fuel from the second fuel inlet/outlet to the first fuel inlet/outlet.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: February 6, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Don Striker, Michael McPherson, Elmer Greenbank, Paul W. Futa
  • GAS TURBINE ENGINE MECHANICAL-ELECTRICAL HYBRID FUEL DELIVERY SYSTEM
    Publication number: 20160076452
    Abstract: A gas turbine engine fuel delivery system includes a mechanically-driven fuel pump, an electrically-driven fuel pump, and an engine control. The mechanically-driven fuel pump is adapted to receive a drive torque from a gas turbine engine draw fuel into its fuel inlet and discharge the fuel from its fuel outlet. The electrically-driven fuel pump has a first fuel inlet/outlet that is in fluid communication with the mechanically-driven fuel pump fuel inlet, and also has a second fuel inlet/outlet. The engine control is responsive to an engine start signal to cause the electrically-driven fuel pump to be temporarily energized to pump fuel from the first fuel inlet/outlet to the second fuel inlet/outlet, and is responsive to an engine shutdown signal to cause the electrically-driven pump to be temporarily energized to pump fuel from the second fuel inlet/outlet to the first fuel inlet/outlet.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 17, 2016
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Don Striker, Michael McPherson, Elmer Greenbank, Paul W. Futa