Patents by Inventor Michel Francois, Leon Beaucoueste

Michel Francois, Leon Beaucoueste 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).

  • Method for damping a gas-turbine blade, and vibration damper for implementing same
    Patent number: 10138756
    Abstract: A turbine wheel with optimal-mass dampers to dampen a predetermined resonance in context of vibration of a turbine, particularly a low-speed turbine, while assisting in flexibility of adapting to bearing surfaces of recesses of the dampers, by separating mass and flexibility functions by a flexible portion for clamping against the platform, and a mass portion for controlling frictional forces. A damper includes a plate and a counterweight. The plate is stamped from a metal sheet that is substantially thinner than that of the counterweight. The plate includes a wall configured to flexibly contact a platform of the blade of the wheel, while at least partially surrounding a surface of the counterweight. The damper can be used in particular for a wheel of a turbine of a turbine engine, of a fan, or of a BP compressor having mounted blades.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 27, 2018
    Assignee: Safran Helicopter Engines
    Inventors: Jean-Luc Pierre Sahores, Michel Francois Leon Beaucoueste
  • METHOD FOR DAMPING A GAS-TURBINE BLADE, AND VIBRATION DAMPER FOR IMPLEMENTING SAME
    Publication number: 20130280068
    Abstract: A turbine wheel with optimal-mass dampers to dampen a predetermined resonance in context of vibration of a turbine, particularly a low-speed turbine, while assisting in flexibility of adapting to bearing surfaces of recesses of the dampers, by separating mass and flexibility functions by a flexible portion for clamping against the platform, and a mass portion for controlling frictional forces. A damper includes a plate and a counterweight. The plate is stamped from a metal sheet that is substantially thinner than that of the counterweight. The plate includes a wall configured to flexibly contact a platform of the blade of the wheel, while at least partially surrounding a surface of the counterweight. The damper can be used in particular for a wheel of a turbine of a turbine engine, of a fan, or of a BP compressor having mounted blades.
    Type: Application
    Filed: December 20, 2011
    Publication date: October 24, 2013
    Applicant: Turbomeca
    Inventors: Jean-Luc Pierre Sahores, Michel Francois, Leon Beaucoueste