Patents by Inventor Michael T Holdsworth

Michael T Holdsworth 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).

  • Guide vane assembly
    Patent number: 6764276
    Abstract: A fan outlet guide vane assembly (36) for a turbofan gas turbine engine (10) comprises a fan casing (32) and a plurality of circumferentially spaced radially extending fan outlet guide vanes (34). The fan outlet guide vanes (34) are secured at their radially outer ends to the fan casing (32). A plurality of panels (40) are secured to the fan casing (32). Each panel (40) is arranged between two adjacent fan outlet guide vanes (34) to define the flow path between the fan outlet guide vanes (34). Each panel (40) comprises a perforated skin (42) and a honeycomb structure (44) to form an acoustic treatment structure. The perforated skin (42) defines the flow path between the fan outlet guide vanes (34). The pressure equalization across the panels (40) minimises the possibility of the panels (40) being removed.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: July 20, 2004
    Assignee: Rolls-Royce plc
    Inventors: Thomas G Mulcaire, Michael T Holdsworth, Richard Evans
  • Guide vane assembly
    Publication number: 20030031556
    Abstract: A fan outlet guide vane assembly (36) for a turbofan gas turbine engine (10) comprises a fan casing (32) and a plurality of circumferentially spaced radially extending fan outlet guide vanes (34). The fan outlet guide vanes (34) are secured at their radially outer ends to the fan casing (32). A plurality of panels (40) are secured to the fan casing (32). Each panel (40) is arranged between two adjacent fan outlet guide vanes (34) to define the flow path between the fan outlet guide vanes (34). Each panel (40) comprises a perforated skin (42) and a honeycomb structure (44) to form an acoustic treatment structure. The perforated skin (42) defines the flow path between the fan outlet guide vanes (34). The pressure equalisation across the panels (40) minimises the possibility of the panels (40) being removed.
    Type: Application
    Filed: July 24, 2002
    Publication date: February 13, 2003
    Inventors: Thomas G. Mulcaire, Michael T. Holdsworth, Richard Evans