Patents by Inventor David E. Hrencecin

David E. Hrencecin 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 for reducing heat load in combustor panels
    Patent number: 6519850
    Abstract: A combustor liner has a stepped combustor liner surface defining a combustion zone and an overhang portion forming an air cooling slot. A layer of thermal barrier material is applied to the combustor liner such that at least one portion of the combustor liner receives a layer of thermal barrier material with a thickness greater than 0.01 inches. Thus, the combustor liner absorbs less heat, and the combustor may operate at higher temperatures. As a result, low cycle fatigue and thermal creep are reduced within the combustor and the life cycle for the combustor is extended.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: February 18, 2003
    Assignee: General Electric Company
    Inventors: Timothy P. Mc Caffrey, Frank A. Lastrina, Joseph D. Monty, David E. Hrencecin
  • Methods for reducing heat load in combustor panels
    Publication number: 20020178728
    Abstract: A combustor liner has a stepped combustor liner surface defining a combustion zone and an overhang portion forming an air cooling slot. A layer of thermal barrier material is applied to the combustor liner such that at least one portion of the combustor liner receives a layer of thermal barrier material with a thickness greater than 0.01 inches. Thus, the combustor liner absorbs less heat, and the combustor may operate at higher temperatures. As a result, low cycle fatigue and thermal creep are reduced within the combustor and the life cycle for the combustor is extended.
    Type: Application
    Filed: July 10, 2002
    Publication date: December 5, 2002
    Inventors: Timothy P. Mc Caffrey, Frank A. Lastrina, Joseph D. Monty, David E. Hrencecin
  • Apparatus for reducing heat load in combustor panels
    Patent number: 6438958
    Abstract: A combustor liner has a stepped combustor liner surface defining a combustion zone and an overhang portion forming an air cooling slot. A layer of thermal barrier material is applied to the combustor liner such that at least one portion of the combustor liner receives a layer of thermal barrier material with a thickness greater than 0.01 inches. Thus, the combustor liner absorbs less heat, and the combustor may operate at higher temperatures. As a result, low cycle fatigue and thermal creep are reduced within the combustor and the life cycle for the combustor is extended.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: August 27, 2002
    Assignee: General Electric Company
    Inventors: Timothy P. McCaffrey, Frank A. Lastrina, Joseph D. Monty, David E. Hrencecin