Patents by Inventor Jack W. Smith, Jr.

Jack W. Smith, Jr. 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 apparatus for reducing gas turbine engine emissions
    Patent number: 6983605
    Abstract: A gas turbine engine includes a combustor system including a lean premix combustor and a water delivery system. The combustor is operable with a fuel/air mixture equivalence ratio less than one and the water delivery system is configured to supply at least one of water or steam to the gas turbine engine such that either the water or the steam is injected into the combustor to control emissions generated by the combustor. As a result, nitrous oxide emissions for specified turbine operating power levels are lowered.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: January 10, 2006
    Assignee: General Electric Company
    Inventors: Richard B. Hook, John M. Davidson, Eric J. Kress, Jack W. Smith, Jr., James W. Stegmaier, Paul V. Heberling, David B. Patterson
  • Anti-carboning fuel-air mixer for a gas turbine engine combustor
    Patent number: 6571559
    Abstract: A fuel-air mixer for a gas turbine engine combustor having a primary swirler and a venturi that effectively reduces carboning via purge air. Purge air flows axially through the fuel-air mixer forming a boundary layer of air on the inner surface of the venturi. The boundary layer of air minimizes the amount of fuel contacting the inner surface of the venturi resulting in reduced carbon resin or coke formation.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: June 3, 2003
    Assignee: General Electric Company
    Inventors: Douglas M. Fortuna, William T. Houchens, Gary L. Leonard, Phillip D. Napoli, Paul E. Sabla, Douglas G. Shafer, Jack W. Smith, Jr.