Patents by Inventor Gary P. Vavrek

Gary P. Vavrek 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).

  • Process for starting a gas turbine and gas turbine
    Patent number: 5165223
    Abstract: A method of starting a gas turbine (10) having a combustor (12) and a fuel supply system (14) supplying fuel to the combustor in accordance with the invention includes turning on a fuel valve (40) to control fuel flow to the combustor for combustion after a first starting condition (100) is reached; and cyclically turning (116) the main fuel valve on and off when a sensed exhaust gas temperature (114) initially reaches a first set temperature and continuing to cyclically turn the main fuel valve on and off until the sensed exhaust gas temperature falls to a second set temperature (118) lower than the first set temperature or until a second starting condition (102) is reached.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: November 24, 1992
    Assignee: Sundstrand Corporation
    Inventors: Peter C. Ingham, Sven B. Sjoberg, Gary P. Vavrek, Gary L. Goldberg, William D. Treece