Patents by Inventor Jean-François ALLIAS

Jean-François ALLIAS 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).

  • Publication number: 20240329154
    Abstract: An electrical protection system for protecting an electrical circuit comprising a generator and a plurality of electrical apparatuses, each apparatus comprising a chassis. The protection system comprises a first link associated with each apparatus, connecting the chassis of the apparatus to an earth, and comprising a protection resistor. For at least one electrical apparatus operating under direct current, the associated first electrical link comprises a protection capacitor in parallel with the protection resistor. The protection system comprises a second link connecting a neutral point of the generator to the earth.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    Inventors: Jean-François ALLIAS, Florian CARPENTIER
  • Publication number: 20240253798
    Abstract: An electrical propulsion assembly that includes: a propeller that has a rotation axis, at least two electric motors offset relative to one another in a longitudinal direction parallel to the rotation axis of the propeller, a main drive shaft parallel to the rotation axis of the propeller to which the electric motor are coupled, a transmission system including an output shaft connected to the propeller and an input shaft connected to the main drive shaft. Also an aircraft including at least one such electrical propulsion assembly.
    Type: Application
    Filed: January 19, 2024
    Publication date: August 1, 2024
    Inventors: Jean-François ALLIAS, Damien MARIOTTO
  • Patent number: 11984839
    Abstract: A propulsive electric motor set for aircraft includes an electrical energy source and an electric motor provided with a drive shaft on which is mounted a propeller. The electric motor includes a first set of windings linked to the electrical energy source to provide a rotational drive function for the drive shaft. The electric motor further includes a second set of windings which, when the drive shaft is driven in rotation by an electric powering of the first set of windings, provides an electric generation function configured to supply non-propulsive loads of the aircraft. Thus, the non-propulsive loads of the aircraft can be electrically powered without any overload compromising the aerodynamics of the aircraft.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: May 14, 2024
    Assignee: Airbus Operations SAS
    Inventors: Jean-François Allias, Olivier Raspati
  • Publication number: 20240017843
    Abstract: An aircraft propulsion system comprising a propeller, a plurality of electric motors, a transmission system configured to couple the electric motors to the propeller, and a propeller pitch adjustment system positioned at the rear of the transmission system. At least one of the electric motors is positioned in front of the transmission system. A connection structure is interposed between the propeller and the transmission system, the connection structure and the output shaft of the transmission system connected to the propeller being configured so that no electric motor positioned in front of the transmission system interferes with the propeller. Also an aircraft with such a system.
    Type: Application
    Filed: July 12, 2023
    Publication date: January 18, 2024
    Inventors: Rémi AMARGIER, Frédéric VINCHES, Jean-François ALLIAS, Anthony ROUX, Norberto SIMIONATO NETO, Kotaro FUKASAKU
  • Patent number: 11866185
    Abstract: A propulsion system includes a system for producing electricity that supplies electricity to at least one electric motor to which is mechanically coupled a propeller situated near a first longitudinal end of a nacelle that houses at least the system for producing electricity and the at least one electric motor. An air circulation channel, which receives a heat exchanger provided to allow the system for producing electricity to be cooled, extends inside the nacelle from a first end of the air circulation channel situated at the first longitudinal end of the nacelle. A part of the air circulation channel that is contiguous with its first end is delimited by an outer surface of cylindrical shape that surrounds the longitudinal axis of the nacelle.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: January 9, 2024
    Assignees: AIRBUS SAS, AIRBUS OPERATIONS SAS
    Inventors: Christophe Labarthe, Franck Alvarez, Fabien Latourelle, Olivier Verseux, Pascal Pome, Jean Francois Allias, Olivier Ciet, Olivier Raspati, Anthony Roux, Benedikt Bammer
  • Publication number: 20230399116
    Abstract: The electrical supply system (10) of an electrical propulsion system (4) of an aircraft (1) includes: two first sets of fuel cells (FC11, FC12), configured to supply electrically an electric motor driving a propulsion propeller; a first compressor (C1) configured to supply compressed air to at least part of the at least two first sets of fuel cells (FC11, FC12); and a first electric motor (M1) designed to drive the first compressor. The first electric motor (M1) includes electrical windings (W1a, W1b), each electrical winding supplied electrically by a set of distinct fuel cells from amongst the at least two first sets of fuel cells (FC11, FC12).
    Type: Application
    Filed: June 2, 2023
    Publication date: December 14, 2023
    Inventor: Jean-François ALLIAS
  • Patent number: 11572191
    Abstract: A propeller-type propulsion system for aircraft comprising a propeller, a plurality of electric motors and a gearbox. The gearbox has an output shaft onto which the propeller is mechanically coupled, and has an input shaft onto which the plurality of electric motors is mechanically coupled, the input shaft being off-center with respect to the output shaft. All of the electric motors are mechanically coupled one after the other along the input shaft such that the electric motors are at least partially integrated into a space, on the opposite side of the gearbox from the propeller, that is left free owing to the input shaft and the output shaft being off-center with respect to one another. As a result, the diameter of the propulsion system, in a plane perpendicular to the axis of rotation of the propeller, is reduced. This improves the aerodynamics and the fuel consumption of the aircraft.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: February 7, 2023
    Assignees: AIRBUS OPERATIONS SAS, AIRBUS SAS, AIRBUS OPERATIONS S.L.
    Inventors: Jean-François Allias, Franck Alvarez, Pascal Pome, Nicolas Jolivet, Rémi Amargier, Salvatore Demelas, Norberto Simionato Neto, Benedikt Bammer, Damien Mariotto
  • Publication number: 20230017954
    Abstract: A propeller-type propulsion system for aircraft comprising a propeller, a plurality of electric motors and a gearbox. The gearbox has an output shaft onto which the propeller is mechanically coupled, and has an input shaft onto which the plurality of electric motors is mechanically coupled, the input shaft being off-center with respect to the output shaft. All of the electric motors are mechanically coupled one after the other along the input shaft such that the electric motors are at least partially integrated into a space, on the opposite side of the gearbox from the propeller, that is left free owing to the input shaft and the output shaft being off-center with respect to one another. As a result, the diameter of the propulsion system, in a plane perpendicular to the axis of rotation of the propeller, is reduced. This improves the aerodynamics and the fuel consumption of the aircraft.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 19, 2023
    Inventors: Jean-François ALLIAS, Franck ALVAREZ, Pascal POME, Nicolas JOLIVET, Rémi AMARGIER, Salvatore DEMELAS, Norberto SIMIONATO NETO, Benedikt BAMMER, Damien MARIOTTO
  • Publication number: 20230021085
    Abstract: A propeller-type propulsion system for aircraft, comprises a propeller, a plurality of electric motors comprising nested coaxial respective driveshafts, and a gearbox having an output shaft onto which the propeller is mechanically coupled, and an input shaft to which the coaxial driveshafts of the electric motors are mechanically coupled. As a result, the diameter of the propulsion system, in a plane perpendicular to the axis of rotation of the propeller, is reduced. This improves the aerodynamics and the fuel consumption of the aircraft.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 19, 2023
    Inventors: Jean-François ALLIAS, Franck ALVAREZ, Pascal POME, Nicolas JOLIVET, Rémi AMARGIER, Salvatore DEMELAS, Norberto SIMIONATO NETO, Benedikt BAMMER, Damien MARIOTTO
  • Publication number: 20220329181
    Abstract: A propulsive electric motor set for aircraft includes an electrical energy source and an electric motor provided with a drive shaft on which is mounted a propeller. The electric motor includes a first set of windings linked to the electrical energy source to provide a rotational drive function for the drive shaft. The electric motor further includes a second set of windings which, when the drive shaft is driven in rotation by an electric powering of the first set of windings, provides an electric generation function configured to supply non-propulsive loads of the aircraft. Thus, the non-propulsive loads of the aircraft can be electrically powered without any overload compromising the aerodynamics of the aircraft.
    Type: Application
    Filed: April 5, 2022
    Publication date: October 13, 2022
    Inventors: Jean-François ALLIAS, Olivier RASPATI
  • Publication number: 20220306306
    Abstract: A propulsion system includes a system for producing electricity that supplies electricity to at least one electric motor to which is mechanically coupled a propeller situated near a first longitudinal end of a nacelle that houses at least the system for producing electricity and the at least one electric motor. An air circulation channel, which receives a heat exchanger provided to allow the system for producing electricity to be cooled, extends inside the nacelle from a first end of the air circulation channel situated at the first longitudinal end of the nacelle. A part of the air circulation channel that is contiguous with its first end is delimited by an outer surface of cylindrical shape that surrounds the longitudinal axis of the nacelle.
    Type: Application
    Filed: March 23, 2022
    Publication date: September 29, 2022
    Inventors: Christophe LABARTHE, Franck ALVAREZ, Fabien LATOURELLE, Olivier VERSEUX, Pascal POME, Jean Francois ALLIAS, Olivier CIET, Olivier RASPATI, Anthony ROUX, Benedikt BAMMER