Patents by Inventor Frederick Duny

Frederick Duny 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).

  • Controlling air flow to a turbine shroud for thermal control
    Patent number: 7584618
    Abstract: A system for controlling a flow of air applied to a gas turbine shroud in an airplane engine, the air flow being adjusted by a regulator valve of position that is controlled by a first control signal calculated on the basis of a first setpoint value corresponding to predetermined clearance between the rotor and the turbine shroud. The system further comprises means for calculating at least one second control signal based on a second setpoint value different from the first value representative of clearance in the turbine, and selector means for-selecting the second control signal to control the regulator valve in response to one or more engine parameters. With such a system, it is possible to control the air flow applied to the shroud in application of a plurality of control logic systems.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: September 8, 2009
    Assignee: Snecma
    Inventors: Denis Amiot, Frederick Duny, Jérôme Friedel, Christian Kaincz, Delphine Roussin-Moynier
  • System and method of controlling a flow of air in a gas turbine
    Publication number: 20050276690
    Abstract: A system for controlling a flow of air applied to a gas turbine shroud in an airplane engine, the air flow being adjusted by a regulator valve of position that is controlled by a first control signal calculated on the basis of a first setpoint value corresponding to predetermined clearance between the rotor and the turbine shroud. The system further comprises means for calculating at least one second control signal based on a second setpoint value different from the first value representative of clearance in the turbine, and selector means for-selecting the second control signal to control the regulator valve in response to one or more engine parameters. With such a system, it is possible to control the air flow applied to the shroud in application of a plurality of control logic systems.
    Type: Application
    Filed: June 14, 2005
    Publication date: December 15, 2005
    Applicant: SNECMA MOTEURS
    Inventors: Denis Amiot, Frederick Duny, Jerome Friedel, Christian Kaincz, Delphine Roussin-Moynier