Patents by Inventor Jeffrey Paul Darnell

Jeffrey Paul Darnell 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 minimizing gas turbine engine thermal stress
    Patent number: 6511284
    Abstract: A heat shield for a gas turbine engine hub which facilitates reducing thermal stress in an exhaust frame of a gas turbine engine. The exhaust frame includes the hub mounted within the engine with a plurality of supports. The supports extend radially outward from the hub through a primary flow cavity and facilitate flow to a secondary flow cavity. The heat shield defines the secondary flow cavity such that the secondary flow cavity is radially inward and axially adjacent the hub. The heat shield includes a plurality of thermal stress relieving corrugations.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: January 28, 2003
    Assignee: General Electric Company
    Inventors: Jeffrey Paul Darnell, Robert Paul Czachor
  • Methods and apparatus for minimizing gas turbine engine thermal stress
    Publication number: 20020182058
    Abstract: A heat shield for a gas turbine engine hub which facilitates reducing thermal stress in an exhaust frame of a gas turbine engine. The exhaust frame includes the hub mounted within the engine with a plurality of supports. The supports extend radially outward from the hub through a primary flow cavity and facilitate flow to a secondary flow cavity. The heat shield defines the secondary flow cavity such that the secondary flow cavity is radially inward and axially adjacent the hub. The heat shield includes a plurality of thermal stress relieving corrugations.
    Type: Application
    Filed: June 1, 2001
    Publication date: December 5, 2002
    Inventors: Jeffrey Paul Darnell, Robert Paul Czachor