Patents Assigned to ArianeGroup SAS
  • Patent number: 10882795
    Abstract: A process for manufacturing a composite part includes introducing an adhesion promoter into the pores of a fibrous preform formed by threads covered with a coating having —OH groups on its surface, the adhesion promoter including an electron-withdrawing group G1 that is reactive according to a reaction of substitution or of nucleophilic addition with the —OH groups, and a reactive group G2; grafting the adhesion promoter to the surface of the coating by a reaction of substitution or nucleophilic addition of the —OH groups on the group G1; introducing a ceramic precursor resin into the pores of the fibrous preform; polymerizing the resin introduced and bonding the grafted adhesion promoter to the resin by chemical reaction between these two compounds at the level of the group G2, and forming a ceramic matrix phase in the pores of the fibrous preform by pyrolysis of the polymerized resin.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: January 5, 2021
    Assignees: SAFRAN CERAMICS, ARIANEGROUP SAS
    Inventors: Nicolas Eberling-Fux, Eric Bouillon, Guy Jacob, Eddy Goullianne
  • Publication number: 20200386190
    Abstract: A supply system for supplying a rocket engine with at least one propellant, the supply system comprising at least one supply circuit able to circulate the propellant, and at least one reservoir in fluid communication with the supply circuit via at least one communication pipe, so that a fluid contained in the reservoir can flow from the latter up to the supply circuit, and vice versa, via said at least one communication pipe, the reservoir being able to contain a volume of gas, and heating means able to vary the volume of gas in the reservoir, the heating means being configured to vaporize the propellant in the reservoir.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 10, 2020
    Applicant: ARIANEGROUP SAS
    Inventors: Benoît Mathieu André CINGAL, Philippe BECRET, Mathieu Henry Raymond TRIGER
  • Publication number: 20200378400
    Abstract: A rotor for a turbomachine includes a disc and a plurality of blades fixed to the disc. Each blade of the plurality of blades is fixed to the disc via a lattice structure configured so that a tensile force applied to the lattice structure induces a change in the angle of incidence of the blade. The blades and the lattice structures are configured so that: (i) when the rotor is stationary, the distribution of the angles of incidence of the blades around the disc is aperiodic, and (ii) when the rotor is rotating at a predetermined rotational speed, the angles of incidence of the blades are identical.
    Type: Application
    Filed: February 12, 2019
    Publication date: December 3, 2020
    Applicant: ARIANEGROUP SAS
    Inventors: Cyril Bernard LOISEAU, Alexandre Michel Stéphane BRIAL, Sébastien BOUFFLERT, François André Adrien MOSER
  • Patent number: 10850980
    Abstract: A system for producing gaseous hydrogen, includes an enclosure formed by a side wall, a front end wall, and a rear end wall, the enclosure containing unit charge(s) of a material for generating gaseous hydrogen when heated, wherein each unit charge includes a cylindrical body including a closed rear end wall and a front end wall having an opening, at least one block of material for generating gaseous hydrogen, each block presenting an annular shape defining a central channel leading to the opening in the front end wall of the body and an initiator present in the vicinity of the rear end wall of the body; the opening facing the front end wall of the enclosure so that the hot gas coming from the block of material for generating gaseous hydrogen when heated is directed directly against the inside surface of the front end wall of the enclosure.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: December 1, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Arnaud Fournet, Jean-Jacques Fournier
  • Patent number: 10843219
    Abstract: An installation for fabricating a thermal protection covering of a body or of a rear assembly for a thruster, includes an extruder presenting a die having an outlet orifice through which a strip of elastomer material is to be extruded, the extruder having a die control system to vary the size of the outlet orifice; a mandrel to be set into rotation about its axis; a deposition head to deposit the strip on the mandrel; a conveyor system to convey the strip from the outlet orifice of the die of the deposition head; and a thickness monitoring system to measure the thickness of the strip on the deposition head and on the mandrel and to compare each measured thickness value with a predetermined value, the thickness monitoring system to control the die control system so as to cause the size of the outlet orifice of the die to vary.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: November 24, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Caroline Vennet, Edouard Borie, Julien Rodolausse, Pierre Lassalle, Matthieu Munoz, Johan Boirie
  • Publication number: 20200358171
    Abstract: A patch antenna intended to equip a spacecraft, the antenna comprising a dielectric substrate, a radiating antenna element present on the dielectric substrate, the radiating antenna element having a center of symmetry and an area devoid of material, the center of symmetry being present in the area devoid of material, and a protective layer covering the radiating antenna element.
    Type: Application
    Filed: January 17, 2019
    Publication date: November 12, 2020
    Applicant: ARIANEGROUP SAS
    Inventors: Nathalie LECERF, Serge VILLERS
  • Patent number: 10829581
    Abstract: The invention relates to a curable resin that represents an excellent substitute for phenolic resins and is therefore able to replace phenolic resins in all applications in which they are used. Said resin is characterised in that it comprises: (1) at least one prepolymer resulting from the prepolymerisation of a compound A comprising at least one aromatic or heteroaromatic ring, a first group —O—CH2-C?CH and at least one second group selected from the groups —O—CH2-C?CH2 and —CH2-CH?CH2, said groups being carried by the at least one aromatic or heteroaromatic ring; and (2) a compound B comprising at least two thiol groups (—SH). The invention also relates to a material obtained by curing said curable resin, and in particular to an ablative composite material. The invention further relates to a material obtained by curing said curable resin.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: November 10, 2020
    Assignees: ARIANEGROUP SAS, UNIVERSITE DE REIMS CHAMPAGNE-ARDENNE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Bastien Rivieres, Brigitte Defoort, Cécile Lesamber, Xavier Coqueret
  • Patent number: 10815546
    Abstract: A loading tooling for thermochemical treatment of parts includes at least first and second loading stages stacked one on the other in separable manner, each loading stage including a rack extending in a horizontal plane. The rack is supported by four legs extending in a vertical direction with the legs of the second loading stage standing on the legs of the first loading stage. The rack has a plurality of support arms secured thereto, with the plurality of support arms of the first loading stage presenting an arrangement that is different from the arrangement of the plurality of support arms of the second loading stage.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 27, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Frédéric Guichard, Jean-Pierre Maumus, Sébastien Chauffaille
  • Patent number: 10801136
    Abstract: A woven fiber structure presenting over at least one of its outside faces a satin weave formed by interlinking a first set of yarns with a second set of yarns; wherein the first set of yarns is in the majority over the outside face, the first set of yarns being formed by a mixture of yarns having an S-twist and of yarns having a Z-twist.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: October 13, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Sylvie Loison, Hervé Evrard, Michel Laxague
  • Patent number: 10793982
    Abstract: A method of needling a fiber layer, includes first needling the fiber layer by a needling head, during which the fiber layer is caused to move in translation relative to the needling head, wherein needles of the needling head are distributed uniformly over a surface of the needling head; after the first needling, shifting the fiber layer relative to the needling head along a shift direction through a distance d equal to N·x·p, where N is an integer not less than 1, x is a coefficient greater than 0, and less than 1, and p designates the pitch of two consecutive needles of the needling head along the shift direction; and second needling the fiber layer, after the shifting, and during which the fiber layer is moved in translation relative to the needling head, the needles not penetrating, during the second needling, into the holes formed during the first needling.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 6, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Hervé Evrard, Gareth Clarke, Edouard Borie, Thierry Constant
  • Publication number: 20200300197
    Abstract: A casing (20) of a propellant feed turbopump (10) for a rocket engine (50), the casing including a cooling circuit (30), wherein the cooling circuit is formed at least in part in a wall of said casing (20).
    Type: Application
    Filed: March 27, 2017
    Publication date: September 24, 2020
    Applicant: ARIANEGROUP SAS
    Inventor: Davide Duri
  • Publication number: 20200291898
    Abstract: A solid propellant auxiliary booster intended to be attached to the main body of a launcher comprises a cylindrical body extending in a longitudinal direction between a rear face in communication with a nozzle and a front face formed by a conical structure connected to the cylindrical body of the booster. The cylindrical body delimits a first internal volume and the conical structure of the front face delimits a second internal volume. The auxiliary booster contains a solid propellant charge. The first internal volume of the cylindrical body communicates with the second internal volume of the conical structure. The solid propellant charge is present both in the first and second internal volumes.
    Type: Application
    Filed: November 29, 2018
    Publication date: September 17, 2020
    Applicant: ARIANEGROUP SAS
    Inventors: Nicolas CUCCO, Jean-Baptiste DEYTS, Pierre LAVEZE, Jean-Michel LARRIEU
  • Publication number: 20200279711
    Abstract: A pyrotechnic switching device comprising a first and a second pyrotechnic initiators, and a body in which are present: an electrically conductive portion, and a mobile switching element having an insulating relief facing the conductive portion. The device also comprises a fuse element connected in series with the conductive portion, the first initiator being connected to the terminals of the fuse element so that tripping the fuse element actuates the first initiator, each initiator being configured to cause the device to switch from a current conducting configuration to a current interrupting configuration, the mobile switching element being set in motion toward the conductive portion in order to break it by the impact of the relief during switching from the first to the second configuration.
    Type: Application
    Filed: November 13, 2018
    Publication date: September 3, 2020
    Applicants: ARIANEGROUP SAS, MERSEN FRANCE SB SAS
    Inventors: Alexandre MATHIEU, Romain LORENZON, Jean-François DE PALMA
  • Patent number: 10758756
    Abstract: A fire extinguisher including a body extending along a longitudinal axis and defining a storage chamber wherein a load of an extinguishing agent is present, and also a pressurizing chamber including a pyrotechnic gas generator, the pressurizing chamber being separated from the storage chamber by a perforated wall configured to put an outlet of the pyrotechnic gas generator into communication with the storage chamber, the perforated wall defining an end of the storage chamber, the extinguisher having a discharge channel configured to deliver the extinguishing agent to the outside of the extinguisher during actuation of the pyrotechnic gas generator, the discharge channel opening out into the storage chamber through an opening positioned at a distance from the perforated wall, as measured along the longitudinal axis of the body, that is less than or equal to half the length of the storage chamber.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: September 1, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Frederic Marlin, Raphael Teoldi
  • Patent number: 10753853
    Abstract: A method of evaluating the corrosion resistance of a coated metal substrate, the method including putting a liquid composition into contact with a corrosion protection coating present on the surface of a metal substrate, the liquid composition including water, a gelling agent, corrosion-catalyst ions, and a color pH indicator; gelling the liquid composition in order to form a corrosion-accelerator gel in contact with the coating; performing a corrosion test during which the gel that has formed is left in contact with the corrosion protection coating; and evaluating the corrosion resistance of the substrate coated by the corrosion protection coating by observing the color of the color pH indicator present in the gel after performing the corrosion test.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: August 25, 2020
    Assignees: ARIANEGROUP SAS, SAFRAN HELICOPTER ENGINES
    Inventors: Marie Betaille-Francoual, Loïc Oger, Anaïs Lecaplain
  • Patent number: 10723490
    Abstract: A device to stabilize and deorbit a satellite includes a pair of coplanar masts, each one carrying at least one membrane forming an aerobraking web. The masts are fixed to the satellite along non-parallel axes. Each mast is provided on the opposite end of the satellite with a mass to generate a gravity gradient. The end of each mast is fixed to the satellite. The masts form, with the bisectrix between the masts, a fixed angle to align the bisectrix with the satellite speed vector at any altitude.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: July 28, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Benjamin Rasse, Patrice Damiano
  • Patent number: 10717552
    Abstract: The invention relates to the field of feeding devices, in particular for feeding rockets on the ground. A feeding device (4) of the invention comprises at least two mutually complementary feeding connectors (5, 6), a breakable connection member (15) connecting these two feeding connectors (5, 6) together and presenting a breakable section (15c) between these two feeding connectors (5, 6), and a force transmission member (16) connected to said breakable section (15c) in such a manner as to transmit a breaking load thereto in order to unlock the connection between the two feeding connectors (5, 6). During unlocking, a breaking load transmitted by the force transmission member (16) thus serves to break the breakable section (15c).
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: July 21, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Olivier Yhuellou, Georges Verdier, Olivier Adam, William Barre
  • Patent number: 10704171
    Abstract: A method of fabricating a needled fiber structure using a needling machine having a needling head with a plurality of needles, the method including placing a first fiber layer on a support; needling the first fiber layer, with the needling head being in a first position relative to the support, at least at the end of needling the first layer; after needling the first layer, implementing relative movement between the support and the needling head so as to cause the needling head to go from the first position relative to the support to a second position that is different from the first; placing a second fiber layer on the needled first fiber layer; and needling the second fiber layer placed on the first fiber layer, the needling head being in the second position relative to the support at least at the beginning of needling the second fiber layer.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: July 7, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Hervé Evrard, Gareth Clarke, Edouard Borie, Thierry Constant
  • Patent number: 10690090
    Abstract: A modulation device for modulating a gas ejection section, the device being for placing in a nozzle upstream from the throat of the nozzle, the modulation device including a plug having a downstream end forming a member for partially obstructing the nozzle throat; and a plug guide having an internal housing in which the upstream end of the plug is present. The upstream end of the plug is suitable for sliding in the internal housing of the plug guide between a first position in which the upstream end of the plug is present in an upstream portion of the internal housing, and a second position in which the upstream end is present in a downstream portion of the internal housing. The upstream end of the plug is held in the first position by at least one retaining element for breaking under the effect of heat.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: June 23, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Pascal Caubet, Jean-Michel Larrieu, Pierre Ripol
  • Patent number: 10683081
    Abstract: Propeller for an aircraft engine comprising: a blade mounting associated with each blade, mounted so as to pivot on the hub according to an incident pitch axis; a pivoting link between each blade mounting and the root, allowing the blade to pivot relative to the blade mounting thereof according to a blade collapsing axis; associated with at least one of the blades, a member for controlling the collapsing/extension of the blade configured to pivot the root relative to the blade mounting according to the collapsing axis; and a passive device for synchronising the collapsing/extension of the blades, including a central synchronisation element mounted so as to rotate relative to the hub according to the propeller rotation axis, as well as a coupling element associated with each blade, including a first end mounted on the blade root and a second end mounted on the central synchronisation element.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: June 16, 2020
    Assignee: ARIANEGROUP SAS
    Inventors: Christophe Heranger, Marco Prampolini