Patents by Inventor David René Pierre Le Cair

David René Pierre Le Cair 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 VANES ASSEMBLY WITH POSITION-MAINTAINING DEVICE
    Publication number: 20240229662
    Abstract: A turbine engine nozzle extending about an axis and including a vane assembly mounted between an outer shroud and an inner shroud; and a position retaining device configured to be placed in an elastically prestressed state between the inner shroud and an inner platform of the vane assembly to apply a stress on the vane assembly towards the outer shroud. The contact between the inner shroud and the inner platform is obtained by one same surface of the position retaining device.
    Type: Application
    Filed: February 8, 2022
    Publication date: July 11, 2024
    Applicants: SAFRAN AIRCRAFT ENGINES, SAFRAN CERAMICS
    Inventors: Sébastien Serge Francis CONGRATEL, Aurélien GAILLARD, Matthieu Arnaud GIMAT, Clément JARROSSAY, David René Pierre LE CAIR
  • GUIDE VANES ASSEMBLY WITH POSITION-MAINTAINING DEVICE
    Publication number: 20240133306
    Abstract: A turbine engine nozzle extending about an axis and including a vane assembly mounted between an outer shroud and an inner shroud; and a position retaining device configured to be placed in an elastically prestressed state between the inner shroud and an inner platform of the vane assembly to apply a stress on the vane assembly towards the outer shroud. The contact between the inner shroud and the inner platform is obtained by one same surface of the position retaining device.
    Type: Application
    Filed: February 8, 2022
    Publication date: April 25, 2024
    Applicants: SAFRAN AIRCRAFT ENGINES, SAFRAN CERAMICS
    Inventors: Sébastien Serge Francis CONGRATEL, Aurélien GAILLARD, Matthieu Arnaud GIMAT, Clément JARROSSAY, David René Pierre LE CAIR
  • Turbine nozzle having blading made of ceramic matrix composite through which a metal ventilation circuit passes
    Patent number: 11867091
    Abstract: A nozzle for a turbomachine turbine. The nozzle includes blades made of ceramic matrix composite material, and at least one metal liner passing through a respective blade. The liner is connected in a sealed manner to a metal internal shroud so as to guide a ventilation fluid through the blade. The nozzle can be configured to maintain effective sealing in spite of the different thermal expansions of the blade and of the internal shroud.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: January 9, 2024
    Assignees: SAFRAN AIRCRAFT ENGINES, SAFRAN CERAMICS
    Inventors: Clément Jarrossay, Sébastien Serge Francis Congratel, Aurélien Gaillard, David René Pierre Le Cair, Matthieu Arnaud Gimat
  • TURBINE NOZZLE HAVING BLADING MADE OF CERAMIC MATRIX COMPOSITE THROUGH WHICH A METAL VENTILATION CIRCUIT PASSES
    Publication number: 20230313695
    Abstract: A nozzle for a turbomachine turbine. The nozzle includes blades made of ceramic matrix composite material, and at least one metal liner passing through a respective blade. The liner is connected in a sealed manner to a metal internal shroud so as to guide a ventilation fluid through the blade. The nozzle can be configured to maintain effective sealing in spite of the different thermal expansions of the blade and of the internal shroud.
    Type: Application
    Filed: October 1, 2020
    Publication date: October 5, 2023
    Applicants: SAFRAN AIRCRAFT ENGINES, SAFRAN CERAMICS
    Inventors: Clément JARROSSAY, Sébastien Serge Francis CONGRATEL, Aurélien GAILLARD, David René Pierre LE CAIR, Matthieu Arnaud GIMAT