Patents Assigned to SAFRAN
  • Fuel supply system with air expulsion drain for an aircraft engine
    Patent number: 12264628
    Abstract: A liquid fuel supply system for an aircraft engine includes a fuel tank, a suction duct connected to the fuel tank and located higher than the fuel tank, an electric pump, a supply pump that is mechanically driven by an accessory gear box and an outlet of the supply pump being connected to a fuel supply circuit of the engine, and an air expulsion drain. The electric pump is in communication with the suction duct independently of the supply pump, the electric pump is in communication with the air expulsion drain, and the supply pump is in communication with the suction duct independently of the electric pump.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: April 1, 2025
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventors: Philippe Jean René Marie Benezech, Alexis Thomas Valentin Longin, Pierre Anthony Sicaire, Gabriel Darrieumerlou
  • System and method for regulating a physical parameter of a real turbomachine system from a physical parameter set point
    Patent number: 12265361
    Abstract: A system REG for regulating a physical parameter of a real turbomachine system F(p) from a physical setpoint parameter, the regulation system REG comprising a system OPTK for optimising the parameterisation gain K during the regulation, the optimisation system OPTK comprising a stability correction module determining a first gain component K1, a response time correction module determining a second gain component K2, the stability correction module being designed to inhibit the response time correction module when an instability is detected during the regulation of the physical parameter, and a determination module configured to determine the parameterisation gain K as a function of the previously determined first gain component K1 and second gain component K2.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: April 1, 2025
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventor: Cedrik Djelassi
  • METHOD FOR MANAGING TURBINE ENGINE DEVICES USING AN ON-BOARD READER OF THE RADIO FREQUENCY IDENTIFICATION TYPE
    Publication number: 20250103833
    Abstract: This method for managing devices installed in a nacelle of a turbine engine, the devices being provided with radio tags and the turbine engine being fitted with a radio frequency identification reader and with at least two time reversal antennae, comprises the following steps: mapping the electromagnetic field inside the closed nacelle matching the known position of the devices with the electromagnetic characteristics of their respective radio tags carrying out an inventory by time reversal focusing of waves.
    Type: Application
    Filed: January 10, 2023
    Publication date: March 27, 2025
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Julie Valérie Clara Lavigne, Tony Alain Roger Joël Lhommeau
  • THRUST REVERSER COMPRISING FIXED CASCADES AND A SEALING MEMBRANE
    Publication number: 20250101931
    Abstract: A thrust reverser for an aircraft propulsion assembly, including a fixed structure equipped with at least one cascade as well as a radially inner delimiting wall of a secondary vein, and a movable structure including at least one reverser cowling, the cascade being arranged, in the forward direct thrust position, in a housing of the reverser cowling, and, in the retracted thrust reversal position, the wall reveals a passage opening of the secondary vein towards the cascade, the thrust reverser also including at least one sealing membrane designed to deflect at least one portion of the secondary flow. A hook is provided for securing the membrane to a rear cascade support frame, and to the radially inner delimiting wall of the secondary vein.
    Type: Application
    Filed: January 6, 2023
    Publication date: March 27, 2025
    Applicant: SAFRAN NACELLES
    Inventors: Patrick GONIDEC, Loïc CHAPELAIN (Deceased), Patrick André BOILEAU
  • COMPONENT FOR FUEL CELL
    Publication number: 20250105310
    Abstract: A component for an acid electrolyte fuel cell or electrolyser provided with an anticorrosion coating, as well as such an acid electrolyte fuel cell or electrolyser, the component including an electrically conductive substrate, and an anticorrosion coating deposited on at least one surface of the substrate, the anticorrosion coating including at least one main tantalum-nitride-based layer doped with one or more dopant elements chosen from the family of the transition metals or lanthanides.
    Type: Application
    Filed: January 17, 2023
    Publication date: March 27, 2025
    Applicants: SAFRAN, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUX, INSTITUT POLYTECHNIQUE DE BORDEAUX
    Inventors: Marjorie Christine CAVARROC, Fabrice Claude Michel MAUVY, Angéline Nadine Jeanne POULON, Aurélie Corinne ACHILLE, Dominique Paul Abel MICHAU, Sébastien FOURCADE
  • METHOD FOR CORRECTING THE RADIAL MOMENT WEIGHT OF A VANE FOR AN AIRCRAFT TURBINE ENGINE
    Publication number: 20250100673
    Abstract: A method for correcting the radial moment weight of a vane includes the step of providing a vane extending along an axis of elongation (Z) between a free end and an opposite root, the vane having a blade made of composite material and having a leading edge. The method further includes the steps of measuring the radial moment weight of the vane and comparing the measured radial moment weight to a reference value and adjusting the radial moment weight of the vane according to the result of the comparison. The vane has at least one adjustment cavity extending along the leading edge and opening into the free end of the vane. The adjustment is carried out by inserting a first material into the adjustment cavity.
    Type: Application
    Filed: September 5, 2022
    Publication date: March 27, 2025
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Lucas Antoine Christophe LAUWICK, Maxime Mathieu MOUROT, Didier QUEANT
  • METHOD FOR BRAKING AN AIRCRAFT TURBINE ENGINE
    Publication number: 20250101930
    Abstract: Method for braking an aircraft turbine engine including a fan or a propeller connected to a turbine by a shaft and an electric generator connected to the shaft, the method comprising the following steps: a request to brake the turbine engine by thrust reversal; a calculation of a turbine braking setpoint by a control system; and in response to the braking setpoint, an adjustment by the control system of a resistance of a dissipative load to draw electric power from the electric generator to the dissipative load.
    Type: Application
    Filed: January 18, 2023
    Publication date: March 27, 2025
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Jacques Auriol, Pierre-Alain Jean Philippe Reigner
  • INTEGRATED UNIT FOR TRANSFERRING ROTARY POWER FROM AN ELECTRICAL CHAIN FOR DE-ICING PROPELLER BLADES AND THE NOSE CONE OF A TURBOMACHINE
    Publication number: 20250100695
    Abstract: An integrated unit for de-icing the propeller blades and the nose of a turbomachine including: a rotary transformer including a static part and a rotary part; a DC-to-AC voltage converter connected at its output to the static part of the rotary transformer and intended to be connected at its input to a DC electrical power supply, and a power switch connected to the rotary transformer and configured to transmit electrical power to at least one pair of propeller blades and to the nose cone of the turbomachine.
    Type: Application
    Filed: March 28, 2023
    Publication date: March 27, 2025
    Applicant: SAFRAN ELECTRICAL & POWER
    Inventor: Djemouai HADJIDJ
  • Method of localized consolidation of parts assembled by molecular adhesion
    Patent number: 12258290
    Abstract: A method of assembling together a first part and at least one second part that are made of materials compatible with bonding by molecular adhesion includes a step of pressing a first surface of the first part against a second surface of the second part so as to create molecular bonds at an interface between the parts, and a step of consolidating the interface bonding as created in this way by heat treatment. The consolidation includes a step of emitting a power laser beam towards an impact point forming a portion of the outline of the interface, and a step of moving the impact point along the outline of the interface.
    Type: Grant
    Filed: November 25, 2022
    Date of Patent: March 25, 2025
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Mathieu Picard, Bruno Letourneur, Bastien Henault, Alice Garnier
  • Thrust reverser comprising pivoting half-assemblies and a connecting beam for the half-assemblies at the six o'clock position
    Patent number: 12258925
    Abstract: A thrust reverser for a propulsion unit, incudes movable grids, two half-assemblies forming part of a secondary stream and, at the six o'clock position, a connecting beam intended to be mounted in cantilever with a fan housing. The half-assemblies are hinged at the twelve o'clock position so as to enable their “butterfly” movement between a flight configuration and a maintenance configuration. The connecting beam includes a connecting member configured to cooperate, in the form of a tenon and groove connection, with the half-assemblies when these are in flight configuration. The reverser also includes, downstream of the connecting member, locks capable of locking the half-assemblies in flight configuration.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: March 25, 2025
    Assignee: SAFRAN NACELLES
    Inventors: Patrick André Boileau, Julien Chandelier, Laurent Georges Valleroy
  • Auxetic energy absorbing passenger safety assemblies
    Patent number: 12258130
    Abstract: Described are energy absorbing assemblies for a passenger seat. The energy absorbing assemblies can include one or more auxetic energy absorbing elements (130), each element including a crushable matrix formed of cells having an auxetic cell geometry that are crushable in a direction of energy capture.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: March 25, 2025
    Assignee: Safran Seats USA LLC
    Inventors: Jose Madrigal, Mario Herrera
  • Assembly for a turbomachine
    Patent number: 12258879
    Abstract: An assembly for a turbomachine includes at least a first part and a second part, and at least one bolt including a screw engaging with a nut. The screw extends through respective openings in the first part and in the second part. The bolt includes a support member having an annular collar mounted between the screw or the nut, and the first part. The collar has a support surface abutting, at least partially, on a complementary support surface of the first part. The collar also includes a recessed annular groove extending at the inner periphery of the collar.
    Type: Grant
    Filed: November 25, 2021
    Date of Patent: March 25, 2025
    Assignee: SAFRAN CERAMICS
    Inventors: Thierry Guy Xavier Tesson, Thomas Revel, Christophe Paul Aupetit, Denis Jean Armel Busquet
  • Method for controlling a rectifier connected to a permanent-magnet synchronous electric generator to provide a direct voltage, corresponding device and computer program
    Patent number: 12261552
    Abstract: A method for determining a first setpoint for a first vector component of the phase currents along a first axis of a rotating reference frame connected to a rotor of the electric generator, and a second setpoint for a second vector component of the phase currents along a second axis of the rotating reference frame. The second vector component of the phase currents is to bring about defluxing of the rotor; and controlling the rectifier on the basis of the first and second setpoints for the vector components of the phase currents. The first setpoint for the first vector component of the phase currents is determined on the basis of an external feedback loop designed to feedback-control a voltage on a DC bus or to regulate a current from a battery connected to the DC bus.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: March 25, 2025
    Assignees: SAFRAN, SAFRAN ELECTRICAL & POWER
    Inventors: Christelle Saber, Florent Rougier, Adrian Florescu, Mallika Nadheria
  • Mechanical part for an aircraft turbomachine
    Patent number: 12259038
    Abstract: A mechanical part for an aircraft turbomachine is made of metal and includes at least one profiled surface configured to ensure an oil flow during operation. The surface has a hydrophobic and/or lipophobic coating or a surface texturing rendering the surface hydrophobic and/or lipophobic.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: March 25, 2025
    Assignee: SAFRAN TRANSMISSION SYSTEMS
    Inventor: Juan-Luis Marcos Izquierdo
  • Thrust reverser with door of a nacelle of a turbojet engine of an aircraft with a system for diverting fluids to the exterior
    Patent number: 12258924
    Abstract: A thrust reverser of a nacelle of a turbojet engine of an aircraft extending about a longitudinal axis and including a fixed structure and at least one door which is rotatable between a closed position and an open position and including a downstream frame spaced axially from a downstream end edge of the door by an axial clearance parallel to the longitudinal axis. The thrust reverser includes a system for diverting fluids to the exterior including at least one projection fixed onto the door or the other fixed structure and extending into the axial clearance and towards one of the fixed structure or the door, while leaving an axial gap between a free end of said projection and one of the fixed structure or the door.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: March 25, 2025
    Assignee: SAFRAN NACELLES
    Inventors: Jean-Philippe Joret, Jérémie Rabineau, Alexis Yves-Marie Loncle, Laurent Georges Valleroy
  • Method for estimating the remaining service life of subject equipment
    Patent number: 12259692
    Abstract: A method for estimating a Remaining Useful Life of a subject equipment, with a preliminary phase including the following steps: acquire test observations (step 10) and produce test time series (Sx) of at least one signature; partition the test time series to obtain severity classes corresponding to the ageing phases of the test equipment devices (step 14); carry out an initial learning of a diagnosis model on the test equipment devices (step 45); perform a second learning of a signature prediction model (step 51). There is also an operational phase including the following steps: acquire observations when in operation on the subject equipment and produce an extrapolated time series using the prediction model; classify the extrapolated time series using the diagnosis model and derive the remaining useful life of the subject equipment.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: March 25, 2025
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SAFRAN ELECTRONICS & DEFENSE
    Inventors: Badr Mansouri, Romain Breuneval, Guy Clerc, Babak Nahid-Mobarakeh
  • Assembly for supporting an accessory gearbox of an aircraft turbine engine
    Patent number: 12258137
    Abstract: A support assembly for supporting a main accessory gearbox of an aircraft turbine engine, the accessory gearbox including gears and supporting at least one item of equipment driven by the gears. The support assembly can include a structure for connecting and supporting the turbine engine to a pylon of the aircraft including: an intermediate axial portion for attachment to the pylon, having an upper end that defines a linking interface with the pylon, the intermediate axial portion bearing suspension rods, which are intended to be connected to the turbine engine; a front axial portion extending forward of the intermediate portion and having at least one suspension member configured to be connected to the turbine engine; and a rear axial portion extending rearwards of the intermediate portion and supporting the main accessory gearbox.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: March 25, 2025
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Bruno Albert Beutin, Alexis Pereira, Zoltan Zsiga
  • Actuation system for an aircraft engine lubrication pump and associated aircraft
    Patent number: 12261512
    Abstract: An actuation system includes: a generating rotating electrical machine including a first stator including at least one output stator winding; a driving rotating electrical machine including a second rotor, intended to actuate a lubrication pump, and a second stator including at least one input stator winding; an array of switches electrically connected to the at least one output stator winding and to the at least one input stator winding, for electrically connecting them together or disconnecting them from each other depending on the state of the array of switches; and a control device configured to control the array of switches, depending on the state of a control signal, in such a way as to electrically connect or not connect the at least one output stator winding and the at least one input stator winding together.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: March 25, 2025
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventor: Nicolas Bertrand Georges De Blois
  • DRAPING A SKIN OF THERMOPLASTIC MATERIAL ON A MULTICELLULAR BODY
    Publication number: 20250091336
    Abstract: A method for manufacturing a panel including a plurality of partitions defining cells covered by at least one skin, the skin being formed by draping fibrous structures impregnated with a thermoplastic material on the upper edges of the partitions by automatic placement of fibers, the upper edges of the partitions and the fibrous structures being joined together with the aid of a localized heating device at the moment they are placed in contact, the method wherein the fibrous structures are draped with a draping tension on the interface between each edge of a partition and the deposited fibrous structure applying a shear stress of between 50% and 80% of the maximum shear stress before rupture of the interface.
    Type: Application
    Filed: January 5, 2023
    Publication date: March 20, 2025
    Applicant: SAFRAN
    Inventors: Foucault DE FRANCQUEVILLE, Rémi Roland Robert MERCIER, Naoufel BEN SALEM
  • Hybrid propulsion unit for an aircraft
    Patent number: 12252261
    Abstract: A hybrid propulsion unit for an aircraft with multi-rotor rotary wings includes an electrical generator driven by an internal combustion engine, a rectifier configured to convert an AC current sent by the electrical generator into DC current, a DC-AC converter, an electrical network connecting the rectifier to the converter and including a high-voltage DC current bus, electric motors powered by propeller converters coupled to the electric motors, electrical energy storage connected to the electrical network, the electrical storage including at least one primary storage element and at least one secondary storage element.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: March 18, 2025
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventors: Thomas Klonowski, Thomas Bruno Barraco