Patents by Inventor Gary Lee North

Gary Lee North 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).

  • Methods and systems for cooling gas turbine engine combustors
    Patent number: 6546733
    Abstract: A combustor for a gas turbine includes a dome assembly that facilitates extending a useful life of the combustor in a cost-effective and reliable manner. The dome assembly includes a dome plate and a heat shield coupled to the dome plate. The dome plate includes an impingement baffle and an opening extending therethrough and sized to receive a fuel injector. The impingement baffle also includes a plurality of cooling openings in flow communication with the heat shield that direct cooling airflow for impingement cooling and film cooling of the heat shield.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: April 15, 2003
    Assignee: General Electric Company
    Inventors: Gary Lee North, Willard James Dodds
  • Methods and systems for cooling gas turbine engine combustors
    Publication number: 20030000217
    Abstract: A combustor for a gas turbine includes a dome assembly that facilitates extending a useful life of the combustor in a cost-effective and reliable manner. The dome assembly includes a dome plate and a heat shield coupled to the dome plate. The dome plate includes an impingement baffle and an opening extending therethrough and sized to receive a fuel injector. The impingement baffle also includes a plurality of cooling openings in flow communication with the heat shield that direct cooling airflow for impingement cooling and film cooling of the heat shield.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 2, 2003
    Inventors: Gary Lee North, Willard James Dodds
  • Multiple annular swirler
    Patent number: 6367262
    Abstract: A mixer for use in a combustion chamber of a gas turbine engine. The mixer includes a first fuel injector adapted for dispensing droplets of fuel during ignition and low power settings of the engine and a pilot swirler positioned upstream from the first fuel injector. The pilot swirler has a plurality of vanes for swirling air to mix air and the droplets of fuel. The mixer also includes a second fuel injector adapted for dispensing droplets of fuel during high power settings of the engine and a main swirler adjacent the pilot swirler and upstream from the second fuel injector. The main swirler has a plurality of vanes for swirling air traveling through the main swirler to mix air and the droplets of fuel dispensed by the second fuel injector. The mixer also includes a barrier positioned between the pilot swirler and main swirler for separating the first fuel injector from the second fuel injector.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: April 9, 2002
    Assignee: General Electric Company
    Inventors: Hukam Chand Mongia, Gary Lee North, Claude Henry Chauvette