Patents by Inventor Pierre DARFEUIL

Pierre DARFEUIL 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).

  • Patent number: 11459960
    Abstract: A method for checking the maximum available power of a turbine engine of an aircraft equipped with two turbine engines configured to operate in parallel and together to supply a necessary power to the aircraft during a flight phase includes: placing one of the turbine engines in a maximum take-off power regime, and adjusting a power supplied by the other turbine engine, such that the turbine engines continue to supply the necessary power to the aircraft during the flight phase; determining a power supplied by the turbine engine placed in the maximum take-off power regime, and processing the supplied power determined in this way, in order to deduce a piece of information relating to the maximum available power.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: October 4, 2022
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventors: Pierre Darfeuil, Patrick Marconi, Caroline Seve
  • Patent number: 11198505
    Abstract: The invention relates to a method for controlling an emergency device of a helicopter, said helicopter comprising a rotor suitable for being rotated, said emergency device being suitable for supplying additional emergency propulsion power to the helicopter, in said method comprising a step (10) of measuring the rotation speed of the helicopter rotor, a step (12) of calculating the drift of the measured rotation speed, a step (20) of continuously verifying conditions such that the speed of rotation of the rotor is higher than a predetermined value, referred to as arming speed, and the drift of the rotation speed is lower than a predetermined value, referred to as arming drift, and a step (22) of activating the emergency device if the verified conditions are validated.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: December 14, 2021
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventors: Romain Thiriet, Jean Michel Bazet, Jean-Luc Charles Gilbert Frealle, Pierre Darfeuil
  • Publication number: 20210108578
    Abstract: A method for checking the maximum available power of a turbine engine of an aircraft equipped with two turbine engines configured to operate in parallel and together to supply a necessary power to the aircraft during a flight phase includes: placing one of the turbine engines in a maximum take-off power regime, and adjusting a power supplied by the other turbine engine, such that the turbine engines continue to supply the necessary power to the aircraft during the flight phase; determining a power supplied by the turbine engine placed in the maximum take-off power regime, and processing the supplied power determined in this way, in order to deduce a piece of information relating to the maximum available power.
    Type: Application
    Filed: March 30, 2018
    Publication date: April 15, 2021
    Applicant: SAFRAN HELICOPTER ENGINES
    Inventors: Pierre DARFEUIL, Patrick MARCONI, Caroline SEVE
  • Patent number: 10858999
    Abstract: The invention relates to a removable reactivation pack for a turboshaft engine of a helicopter, comprising a gas generator equipped with a drive shaft, said turboshaft engine (6) being capable of operating in at least one standby mode during a stable flight of the helicopter, said removable pack comprising: a removable gearbox comprising a gearbox output shaft; controlled means for rotating said gearbox output shaft, referred to as reactivation means of said turboshaft engine; mechanical means for reversibly coupling said gearbox output shaft to said drive shaft of said gas generator.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: December 8, 2020
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventors: Patrick Marconi, Romain Thiriet, Camel Serghine, Caroline Seve, Pierre Darfeuil
  • Publication number: 20190337611
    Abstract: The invention relates to a method for controlling an emergency device of a helicopter, said helicopter comprising a rotor suitable for being rotated, said emergency device being suitable for supplying additional emergency propulsion power to the helicopter, in said method comprising a step (10) of measuring the rotation speed of the helicopter rotor, a step (12) of calculating the drift of the measured rotation speed, a step (20) of continuously verifying conditions such that the speed of rotation of the rotor is higher than a predetermined value, referred to as arming speed, and the drift of the rotation speed is lower than a predetermined value, referred to as arming drift, and a step (22) of activating the emergency device if the verified conditions are validated.
    Type: Application
    Filed: February 14, 2018
    Publication date: November 7, 2019
    Inventors: Romain THIRIET, Jean Michel BAZET, Jean-Luc Charles Gilbert FREALLE, Pierre DARFEUIL
  • Publication number: 20170241347
    Abstract: The invention relates to a removable reactivation pack for a turboshaft engine of a helicopter, comprising a gas generator equipped with a drive shaft, said turboshaft engine (6) being capable of operating in at least one standby mode during a stable flight of the helicopter, said removable pack comprising: a removable gearbox comprising a gearbox output shaft; controlled means for rotating said gearbox output shaft, referred to as reactivation means of said turboshaft engine; mechanical means for reversibly coupling said gearbox output shaft to said drive shaft of said gas generator.
    Type: Application
    Filed: October 14, 2015
    Publication date: August 24, 2017
    Applicant: SAFRAN HELICOPTER ENGINES
    Inventors: Patrick MARCONI, Romain THIRIET, Camel SERGHINE, Caroline SEVE, Pierre DARFEUIL