Patents by Inventor Ambre ALLARD

Ambre ALLARD 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).

  • Active device for attenuating acoustic emissions for a turbojet engine including controlled turbines
    Patent number: 11401866
    Abstract: An active device for attenuating the acoustic emissions of an aircraft turbojet engine includes circulation conduits for a pressurized air flow rate supplying rotary elements each having a pulsation system for the delivered air. The rotary elements are controlled in amplitude and phase and deliver, to outlet diffusers, a pulsed air flow rate with a pulsation at the frequency of the noise to be attenuated having an amplitude and a phase adjusted according to a local feedback law with microphones to attenuate the radiated acoustic power.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: August 2, 2022
    Assignee: Safran Nacelles
    Inventors: Jean-Paul Rami, Hervé Hurlin, Jean-Baptiste Goulard, Marc Versaevel, Philippe Micheau, Julien Drant, Ambre Allard, Alain Berry, Raymond Robert
  • ACTIVE DEVICE FOR ATTENUATING ACOUSTIC EMISSIONS FOR A TURBOJET ENGINE INCLUDING CONTROLLED TURBINES
    Publication number: 20200400076
    Abstract: An active device for attenuating the acoustic emissions of an aircraft turbojet engine includes circulation conduits for a pressurized air flow rate supplying rotary elements each having a pulsation system for the delivered air. The rotary elements are controlled in amplitude and phase and deliver, to outlet diffusers, a pulsed air flow rate with a pulsation at the frequency of the noise to be attenuated having an amplitude and a phase adjusted according to a local feedback law with microphones to attenuate the radiated acoustic power.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 24, 2020
    Applicant: Safran Nacelles
    Inventors: Jean-Paul RAMI, Hervé HURLIN, Jean-Baptiste GOULARD, Marc VERSAEVEL, Philippe MICHEAU, Julien DRANT, Ambre ALLARD, Alain BERRY, Raymond ROBERT