Patents by Inventor Dominic Bédard

Dominic Bédard 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).

  • Turbine shroud segment apparatus for reusing cooling air
    Patent number: 6899518
    Abstract: A cooled turbine shroud segment for a gas turbine engine, having an axially extending shroud ring segment with an inner surface, an outer surface, an upstream flange and a downstream flange. The flanges mount the shroud ring within an engine casing. A perforated cooling air impingement plate is disposed on the outer surface of the shroud ring between the upstream flange and the downstream flange, with an impingement plenum defined between the impingement plate and the outer surface. Axially extending cooling bores in the ring segment extend between the impingement plenum and an outlet. A trough adjacent the outlet directs cooling air from the outlet towards a downstream stator vane to cool the stator vane.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: May 31, 2005
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Terrence Lucas, Dominic Bédard, Amir Daniel, Remy Synnott
  • Turbine shroud segment apparatus for reusing cooling air
    Publication number: 20040120803
    Abstract: A cooled turbine shroud segment for a gas turbine engine, having an axially extending shroud ring segment with an inner surface, an outer surface, an upstream flange and a downstream flange. The flanges mount the shroud ring within an engine casing. A perforated cooling air impingement plate is disposed on the outer surface of the shroud ring between the upstream flange and the downstream flange, with an impingement plenum defined between the impingement plate and the outer surface. Axially extending cooling bores in the ring segment extend between the impingement plenum and an outlet. A trough adjacent the outlet directs cooling air from the outlet towards a downstream stator vane to cool the stator vane.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Inventors: Terrence Lucas, Dominic Bedard, Amir Daniel, Remy Synnott