Patents Assigned to SAFRAN
  • Locking device with a pulse-controlled rotary lock
    Patent number: 11541855
    Abstract: The invention provides a locking device for preventing movement between two elements (11, 12) that are mounted to move relative to each other, the locking device including a lock (31) mounted to rotate relative to one of the elements in order to present successive angular positions for locking and for release in which the lock alternates between preventing and allowing relative movement between the two elements, the lock being constrained to rotate with a selector (55) of an angular indexing mechanism (50) actuated by a pulse-controlled actuator (70, 71) arranged to push the selector against a spring member (58) in order to cause it to turn on each pulse and thereby cause the lock to pass from one angular position to the other.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: January 3, 2023
    Assignee: SAFRAN LANDING SYSTEMS
    Inventors: Bertrand Dubacher, Marc Quernerch'Du, Bertrand Euzet
  • Device for lubricating and cooling a turbomachine bearing
    Patent number: 11542832
    Abstract: A device for lubricating and cooling a turbomachine rolling bearing is at least partially annular. The device comprises a first duct and a second duct inclined with respect to the first duct. The first duct is configured to be in thermal contact with an outer ring of the rolling bearing that at least partially surrounds same. The second duct is fluidically connected to the first duct. The first duct is configured to circulate the lubricant for cooling the outer ring, towards a discharge outlet of the lubricant. The second duct is configured to eject the lubricant through a lubrication outlet towards the rolling bearing.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: January 3, 2023
    Assignee: SAFRAN TRANSMISSION SYSTEMS
    Inventors: Lionel Bauduin, Othmane Ez-Zahraouy
  • Aircraft propulsion unit and method for ventilating an engine enclosure
    Patent number: 11542026
    Abstract: A propulsion unit for an aircraft includes a nacelle, a turbojet engine, an annular flow path for circulating a secondary air flow, and a precooler device communicating with a motor enclosure and including a scoop opening into the annular flow path. The propulsion unit includes a compressed air supply circuit arranged in the propulsion unit for injecting a flow of compressed air into the scoop of the precooler device. A method for ventilating a motor enclosure of a propulsion unit includes injecting compressed air into a scoop of the precooler device when the turbojet engine is stopped.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: January 3, 2023
    Assignee: Safran Nacelles
    Inventor: Patrick Boileau
  • Coating for refractory alloy part
    Patent number: 11542586
    Abstract: A process for coating a part by chemical vapor diffusion is provided and includes placing a powder mixture in a chamber, immersing the part partially in the powder mixture, and applying a heat treatment to the part. The powder mixture includes a first component and a second component forming a gaseous compound during the heat treatment so as to allow deposition of the second component on the part. The part includes a metal refractory allow and the second component forms a solid diffusion alloy by solid diffusion with a metal species of the refractory metal alloy to generate a coating. The solid diffusion allow generates a passivating oxide layer when subjected to oxidizing conditions.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: January 3, 2023
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SAFRAN
    Inventors: Mirna Bechelany, Virginie Jaquet, Amar Saboundji, Mathieu Soulier, Mathieu Boidot, Richard Laucournet
  • Fuel tank communication systems
    Patent number: 11542031
    Abstract: Embodiments of the present invention provide a fuel tank communication system. The communication system includes a main body (30) used to connect two fuel bladder flanges (12, 20) to one another. The communication system provides two separate, independent locking features (42, 60) that can secure fuel bladders to one another.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: January 3, 2023
    Assignee: SAFRAN AEROSYSTEMS
    Inventors: Philippe Bulard, Christophe Mendes, Loïc Boissy, Hichem Amara
  • SYSTEM FOR CONTROLLING AN AIRCRAFT THRUST REVERSAL MEANS
    Publication number: 20220412287
    Abstract: This system (36) for controlling an aircraft thrust reversal means comprises a reverse idle control means (38), a first detection means (31) configured to detect, when the reverse idle control is active, a condition for activation of the thrust reversal means, and an actuation means (52) configured to activate the thrust reversal means when the first detection means (31) detects a condition for activation of the thrust reversal means. It further comprises a second detection means (42, 44, 46, 48, 49) configured to detect a condition for activation of the reverse idle control, the control means (38) being configured to activate the reverse idle control when the second detection means (42, 44, 46, 48, 49) detects a condition for activating the reverse idle control.
    Type: Application
    Filed: December 23, 2020
    Publication date: December 29, 2022
    Applicants: SAFRAN NACELLES, SAFRAN LANDING SYSTEMS, SAFRAN ELECTRONICS & DEFENSE ACTUATION, SAFRAN AIRCRAFT ENGINES
    Inventors: Laurent MIRALLES, Hakim MAALIOUNE, Christophe BASTIDE, Jérémy Edmond FERT, Vincent HUPIN
  • SYSTEM AND METHOD FOR BALANCING AT LEAST ONE PARAMETER TO BE BALANCED OF AN ELECTRIC MOTOR OF A PROPULSION SYSTEM
    Publication number: 20220411091
    Abstract: A system (11) for balancing at least one parameter to be balanced of an electric motor of a propulsion system (1), in particular of an aircraft, includes at least two electric motors (3, 4) and a propulsion member (2) driven in rotation by said electric motors. The balancing system is configured to calculate a correction of the speed setpoint (Corr_Cons_VI, Corr_Cons_V2) as a function of a correction factor (F1, F2) of the speed setpoint depending on a parameter (P1, P2) of the associated electric motor that is intended to be balanced and on a speed setpoint (Cons_VH) of the propulsion member (2).
    Type: Application
    Filed: December 9, 2020
    Publication date: December 29, 2022
    Applicant: SAFRAN HELICOPTER ENGINES
    Inventors: David Lemay, Jean-Philippe Jacques Marin
  • DEVICE FOR PREVENTING RISK OF ATMOSPHERIC DISTURBANCES FOR AN AIRCRAFT IN THE AIR AND ON THE GROUND
    Publication number: 20220413183
    Abstract: A device for preventing, in real time, risk of atmospheric disturbance (DIS) for an aircraft in the air or on the ground includes acquisition means configured to acquire data corresponding to said risk. The device further includes design means configured to produce a predictive map of at least one critical area corresponding to at least one level of risk of disturbance that has been determined, and protection means (MP) configured to protect electronic components on board the aircraft which are liable to be damaged if the aircraft passes through said at least one critical area.
    Type: Application
    Filed: November 1, 2020
    Publication date: December 29, 2022
    Applicant: SAFRAN ELECTRONICS & DEFENSE COCKPIT SOLUTIONS
    Inventor: Vincent MELCHOR
  • METHOD, DEVICE AND COMPUTER PROGRAM FOR MONITORING A ROTATING MACHINE OF AN AIRCRAFT
    Publication number: 20220412793
    Abstract: The invention relates to a method (1) for monitoring a rotating machine (100) of an aircraft, wherein a measurement signal is acquired from the rotating machine. According to the invention, instantaneous frequencies (fK(t)) of sinusoidal components of the measurement signal are estimated, and, using a computing module (12), a plurality of successive iterations are carried out in each of which: complex envelopes of the components are updated (C1), parameters of a model of a noise of the signal are updated (C21) on the basis of the envelopes, whether the model has converged from the preceding iteration to the present iteration is tested (C4), with a view to: o if not, carrying out a new iteration, o if so, performing a computation (D) of the complex envelopes on the basis of the iterations that have been carried out.
    Type: Application
    Filed: November 3, 2020
    Publication date: December 29, 2022
    Applicant: SAFRAN
    Inventors: Yosra MARNISSI, Dany ABBOUD, Mohammed EL BADAOUI
  • ELECTRICAL CONNECTION FOR AN ELECTRIC MACHINE IN AN AIRCRAFT TURBOMACHINE
    Publication number: 20220412267
    Abstract: An aircraft turbine engine includes a gas generator having a longitudinal axis (A), a fan located at an upstream end of the gas generator and configured to turn about said axis, and an electric machine of generally annular shape. The electric machine is coaxially mounted downstream of the fan and has a rotor coupled to rotate with the fan. The electric machine further includes a stator connected to an electronic power circuit by at least one rigid electrically-conductive bar.
    Type: Application
    Filed: November 24, 2020
    Publication date: December 29, 2022
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Vincent François Georges MILLIER, Loïc Paul Yves GUILLOTEL
  • METHOD FOR COMPACTING AN ANTI-CORROSIVE PAINT OF A TURBINE ENGINE PART
    Publication number: 20220410208
    Abstract: A method compacts an anti-corrosive paint having metal particles of a mechanical part such as a turbine engine part. The mechanical part extends along a longitudinal axis X and has a radially outer surface covered with a first layer of anti-corrosive paint. The method includes at least one step of generating a laser beam on the first layer of anti-corrosive paint to bring the metal particles into contact and to render the anti-corrosive paint electrically conductive.
    Type: Application
    Filed: October 27, 2020
    Publication date: December 29, 2022
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Anthony Cyrille GRUNENWALD, Romaric Jean-Marie PIETTE
  • TURBINE ROTOR WHEEL FOR AN AIRCRAFT TURBOMACHINE
    Publication number: 20220412216
    Abstract: A turbine rotor wheel for an aircraft turbomachine includes a rotor disk, an annular shroud extending around the disk, and blades arranged between the disk and the shroud. The the root of each of the blades has two tabs configured for attachment to the disk. The tabs are arranged upstream and downstream, respectively, of a wall of the disk, relative to the axis. The tab arranged upstream is engaged in a first recess of the disk and configured to cooperate by abutment with a peripheral edge of the first recess. The tab arranged downstream is engaged in a second recess of the disk and is configured to cooperate by abutment with a peripheral edge of the second recess.
    Type: Application
    Filed: December 3, 2020
    Publication date: December 29, 2022
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Paul Ghislain Albert LEVISSE, Olivier BELMONTE
  • PLANET CARRIER FOR A SPEED REDUCTION GEAR OF AN AIRCRAFT TURBOMACHINE
    Publication number: 20220412454
    Abstract: A planet carrier for a speed reduction gear of a turbomachine has a main axis X and includes a cage carrier with an annular row of axial fingers around the axis X, which carry first connecting elements. The carrier further includes a cage having at its periphery housings and second connecting elements that are mounted in the housings and that cooperate with the first connecting elements to form connections between the cage carrier and the cage, which allow at least one degree of freedom. The cage comprises two shells that are axially fastened to each other and separated from each other by a plane. The housings are formed respectively in the shells.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 29, 2022
    Applicant: SAFRAN TRANSMISSION SYSTEMS
    Inventor: Guillaume Pierre MOULY
  • ASSEMBLY FOR AN AIRCRAFT GAS TURBINE ENGINE COMPRISING AN ACCESSORY GEARBOX
    Publication number: 20220412270
    Abstract: An assembly for a gas turbine engine includes a casing centered on a longitudinal axis and including an upstream portion, a central portion and a downstream portion arranged successively along the longitudinal axis, an attachment system include plural tie rods, and an accessory gearbox arranged within a space delimited axially by the upstream portion and the downstream portion and radially by the central portion, the accessory gearbox being solely attached to the upstream portion or solely attached to the downstream portion by the attachment system.
    Type: Application
    Filed: June 24, 2022
    Publication date: December 29, 2022
    Applicant: SAFRAN TRANSMISSION SYSTEMS
    Inventors: Florian Pierre-Yves CHAPUT, Fanélie Violaine DREVON, Thomas Marie Joseph DE DREUILLE DE LONGEVILLE, Quentin Pierre Henri PIGOTT
  • HYBRID PROPULSION CHAIN FOR AN AIRCRAFT COMPRISING AN AUXILIARY MECHANICAL DRIVE SYSTEM
    Publication number: 20220411081
    Abstract: A hybrid propulsion chain for an aircraft, the hybrid propulsion chain comprising a plurality of propulsion rotors connected to an electrical distribution module by a plurality of electrical connections, the electrical distribution module being connected, on the one hand, to a non-propulsion turbine engine via an electrical generation system and, on the other hand, to an electric battery, each propulsion rotor comprising a stator member and at least one rotor shaft which is configured to be rotated with respect to the stator member when the stator member is electrically powered, the hybrid propulsion chain comprising an auxiliary mechanical drive system mechanically connected to the non-propulsion turbine engine, the auxiliary mechanical drive system comprising a plurality of mechanical connections for mechanically rotating at least one rotor shaft of each propulsion rotor.
    Type: Application
    Filed: July 7, 2020
    Publication date: December 29, 2022
    Applicant: SAFRAN HELICOPTER ENGINES
    Inventors: Camel Serghine, Thomas Klonowski, Lois Pierre Denis Vive
  • FOUNDRY MOLD, METHOD FOR MANUFACTURING THE MOLD AND FOUNDRY METHOD
    Publication number: 20220410254
    Abstract: A foundry mold includes at least one molding cavity and one pair of feeder arms. The molding cavity extends, along a horizontal axis, from a first end to a second end, and the first pair of feeder arms comprises a first feeder arm, oriented in a substantially vertical direction and connected to the first end of the first molding cavity, and a second feeder arm, substantially parallel to the first feeder arm and connected to the second end of the first molding cavity.
    Type: Application
    Filed: November 13, 2020
    Publication date: December 29, 2022
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Serge Alain FARGEAS, Nicolas Romain Benjamin LERICHE, Dominique Joseph Georges COYEZ
  • RESONATING PATCH AND ACOUSTIC TREATMENT CELL PROVIDED WITH SUCH A PATCH
    Publication number: 20220412289
    Abstract: Resonating patch for acoustic treatment comprising a resonant plate, a transducer and an electrical circuit electrically connected to the transducer, the resonant plate comprising a peripheral strip extending along the perimeter of the resonant plate. The patch comprises cutouts together defining deformable lamellae having at least one end connected to the peripheral strip.
    Type: Application
    Filed: November 19, 2020
    Publication date: December 29, 2022
    Applicants: SAFRAN AIRCRAFT ENGINES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DU MANS
    Inventors: Josselin David Florian REGNARD, Thibault ABILY, Stéphane Bernard DURAND
  • ON-BOARD COMPUTER WITH INTERPOSER ON THE MICROPROCESSOR CHIP
    Publication number: 20220413574
    Abstract: An on-board computer includes a microprocessor chip with a lower face and an upper face, a chip carrier having an upper face on which the microprocessor chip is mounted, and a casing configured to discharge heat generated by the microprocessor chip in operation. An interposer is disposed between the upper face and the casing. The interposer diffuses the heat transmitted by the upper face of the microprocessor chip towards the casing. The interposer has an upper surface for heat exchange with the casing that is twice or more greater than the surface area of the upper face of the microprocessor chip. The interposer has on one or more sides a peripheral wedging rim coming into contact with a side wall of the chip carrier, and has no more than two peripheral wedging rims, in order to leave the other sides of the interposer free.
    Type: Application
    Filed: November 20, 2020
    Publication date: December 29, 2022
    Applicant: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Christophe POILVET, Nicolas CHARRIER, Michael MONTOYA
  • Systems and methods for cryptocurrency transactions in aircraft
    Patent number: 11538001
    Abstract: Transaction systems and methods are described for verifying transactions in a vehicle. The transactions utilize blockchains of a cryptocurrency to allow for verification of a transaction even where a live Internet connection is unavailable. The systems and methods utilize a digital wallet stored in the vehicle that allows for transactions with a passenger having a passenger digital wallet. A plurality of local nodes disposed in the vehicle store a local and updated copy of the blockchain to allow for verification of the cryptocurrency transactions even during periods of intermittent internet connectivity.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: December 27, 2022
    Assignee: Safran Passenger Innovations, LLC
    Inventors: Andri Handoko, Steven Hawkins, Samuel A. Carswell
  • Rotating armrest assembly
    Patent number: 11535380
    Abstract: An armrest assembly for a passenger seat includes a moveable arm including a proximal end and a distal end, a stowed configuration wherein the moveable arm is disposed adjacent and approximately parallel to a seatback of the passenger seat, and a deployed configuration wherein the moveable arm is approximately parallel to a seat pan of the passenger seat. The moveable arm may include a first portion and a second portion. The armrest assembly may include a first rotation axis such that the moveable arm pivots about the first rotation axis when moving between the stowed configuration and the deployed configuration. The armrest assembly may include a second rotation axis such that the second portion pivots about the second rotation axis relative to the first portion.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: December 27, 2022
    Assignee: Safran Seats USA LLC
    Inventors: Arthur Glain, Oscar Ruiz Lara