Patents by Inventor Philip Hirt

Philip Hirt 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).

  • Cooling system for an airfoil
    Publication number: 20060104813
    Abstract: The cooling system for the airfoil includes forward and aft cooling circuits supplied with a cooling medium. Both circuits include serpentine passages. A central rib divides the forward and aft cooling circuits and includes an opening adjacent the airfoil tip providing a jet of the cooling medium from the forward cooling circuit for impingement against the aft portion of the tip cap. The tip cap also includes a thermal barrier coating along an outside surface thereof as well as on the seat for the tip cap, thereby lowering the tip cap metal temperature and thermally induced stress.
    Type: Application
    Filed: November 18, 2004
    Publication date: May 18, 2006
    Applicant: General Electric Company
    Inventors: Mark Honkomp, Jeffrey Butkiewicz, Philip Hirt