Patents by Inventor Andrew J. Lutz

Andrew J. Lutz 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).

  • Enhanced turbine airfoil cooling
    Patent number: 7901180
    Abstract: The ends of cooling air passages in turbine blades and/or vanes of a gas turbine engine are provided with turbulation promoters to enhance the cooling of such structures as inner and outer shrouds and the like to accommodate thermal loads thereon.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: March 8, 2011
    Assignee: United Technologies Corporation
    Inventors: William Abdel-Messeh, Andrew J. Lutz, Douglas E. Duke, Jose A. Lopes, Aaron T. Frost, Kevin J. Pallos, Kenneth J. Sawyer, Eric Herbst, Michael D. Greenberg, Ricardo Trindade
  • Methods for repairing gas turbine engine components
    Patent number: 7761989
    Abstract: A method for repairing a gas turbine engine component includes the steps of repairing one of a suction side or a pressure side of the component; repairing internal geometry of the component after one of the suction side or the pressure side of the component is repaired; and repairing the other of the suction side and the pressure side of the component after the internal geometry of the component is repaired, wherein a backing material is utilized to preserve the internal geometry of the component when the other of the suction side and the pressure side of the component is being repaired.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: July 27, 2010
    Assignee: United Technologies Corporation
    Inventors: Andrew J. Lutz, John Finn
  • Methods for Repairing Gas Turbine Engine Components
    Publication number: 20090071002
    Abstract: Methods for repairing the gas turbine engine components are provided. In this regard, a representative method includes: determining the presence of a previous repair to a component; determining a characteristic of the previous repair using X-ray fluorescence analysis; and repairing the component.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 19, 2009
    Applicant: UNITED TECHNOLOGIES CORP.
    Inventors: Andrew J. Lutz, Aaron T. Frost
  • Enhanced turbine airfoil cooling
    Publication number: 20080279695
    Abstract: The ends of cooling air passages in turbine blades and/or vanes of a gas turbine engine are provided with turbulation promoters to enhance the cooling of such structures as inner and outer shrouds and the like to accommodate thermal loads thereon.
    Type: Application
    Filed: May 7, 2007
    Publication date: November 13, 2008
    Inventors: William Abdel-Messeh, Andrew J. Lutz, Douglas E. Duke, Jose A. Lopes, Aaron T. Frost, Kevin J. Pallos, Kenneth J. Sawyer, Eric Herbst, Michael D. Greenberg, Ricardo Trindade
  • Weld repair of metallic components
    Publication number: 20080028605
    Abstract: Methods for repairing metallic components are described herein. Embodiments of these methods comprise: removing coatings from the component; removing the damage from the component; welding the component; restoring the original dimensions of the component; heat treating the component; inspecting the component; and recoating the component.
    Type: Application
    Filed: July 28, 2006
    Publication date: February 7, 2008
    Inventors: Andrew J. Lutz, AAron T. Frost