408 patents
Utility
High-pressure Turbine Vane Including a Cavity Under a Squealer Tip
18 Jan 24
Leandre OSTINO, Romain Pierre CARIOU, Filippo PAGNONI, Sylvain PAQUIN, Adrien Bernard Vincent ROLLINGER
Filed: 8 Dec 21
Utility
Fail-safe Guide Device
18 Jan 24
A device comprising: a stand; a frame rotatably mounted relative to the stand; a control arm rotatably mounted on the frame; a roll spider rotatably mounted on the frame; a pitch spider rotatably mounted on the control arm; a roll motor that is stationary relative to the frame and that includes a roll pin rotatably mounted on the roll spider; and a pitch motor that is stationary relative to the frame and that includes a pitch pin rotatably mounted on the pitch spider.
Rémi-Louis LAWNICZAK, Frédéric LAURENSAN, Thierry CARTRY, Xavier BETBEDER-LAÜQUE
Filed: 15 Nov 21
Utility
Turbine part made of superalloy comprising rhenium and/or ruthenium and associated manufacturing method
16 Jan 24
The present invention concerns a turbine part comprising a substrate made of nickel-based monocrystalline superalloy, comprising chromium and at least one element chosen among rhenium and ruthenium, the substrate having a γ-γ′ phase, an average mass fraction of rhenium and of ruthenium greater than or equal to 4% and an average mass fraction of chromium less than or equal to 5% and preferably less than or equal to 3%, a sub-layer covering at least a part of a surface of the substrate, characterised in that the sublayer has a γ-γ′ phase and an average atomic fraction of chromium greater than 5%, of aluminium between 10% and 20% and of platinum between 15% and 25%.
Amar Saboundji, Alice Agier, Virginie Jaquet
Filed: 20 Dec 19
Utility
Nickel-based superalloy having high mechanical and environmental strength at high temperatures and low density
16 Jan 24
A nickel-based superalloy includes, in weight percent, 5.9 to 6.5% aluminum, 9.5 to 10.5% cobalt, 4 to 5% chromium, 0.1 to 0.2% hafnium, 0.3 to 0.7% molybdenum, 3.7 to 4.5% rhenium, 7.5 to 8.5% tantalum, 0.2 to 0.7% titanium, 3.2 to 4% tungsten, 0 to 0.1% silicon, the balance being nickel and unavoidable impurities.
Jérémy Rame, Edern Menou
Filed: 15 Jan 20
Utility
Method for manufacturing a component made of a composite material with a reinforced matrix, and device for the implementation thereof
16 Jan 24
A process for manufacturing a composite material component including a fiber reinforcement based on carbon fibers densified by a matrix, includes successively producing a fiber structure by multilayer three-dimensional weaving, placing the fiber structure in a closed mold, and injecting a resin into the mold, and wherein, during the weaving of the fiber structure, the process further includes spraying carbon nanoparticles onto the carbon fibers.
Yann Didier Simon Marchal, Dominique Marie Christian Coupe, Bruno Jacques Gérard Dambrine
Filed: 31 Jan 20
Utility
System for synchronising energy sources coupled to an aircraft
16 Jan 24
The invention relates to a system for sychronising energy sources coupled to an electrical grid supplying at least one electrical load of an aircraft, said system comprising: a main source of electrical energy supplying said electrical load comprising a multi-stage generator, said multi-stage generator comprising: a primary stage comprising a generator with permanent magnets, a secondary stage comprising an excitation, and a tertiary stage comprising a main generator; an auxiliary source of electrical energy supplying said electrical load; and a device for synchronising the main source and the auxiliary source, designed to measure an electrical voltage at the outlet of the primary stage of the main source, and to control the supply of said electrical load by means of the auxiliary source of electrical energy at an electrical voltage slaved to the characteristics of frequency and phase of the electrical voltage of the primary stage.
Jean-Philippe Salanne, Stéphane Petibon, Florent Rougier, José Del Castillo, Alexander Salimian
Filed: 29 May 19
Utility
Method for Stopping a Gas Turbine Engine of a Turbogenerator for Aircraft
4 Jan 24
This method for stopping at least one aircraft turbogenerator (1) comprises: —controlling the stopping (E1) of the turbogenerator (1); —passing from the nominal operating speed (Nref) of the power shaft (3, 12) to a first operating speed (N1) lower than the nominal speed (Nref), for a first predetermined duration (t2); —controlling the extinction of the combustion chamber (6) of the gas turbine (2); —maintaining the rotation of the gas turbine at a second speed (N2) for a second predetermined duration (t3), the power shaft (3, 12) being at a second speed (N2) lower than the first operating speed (N1) and, —controlling the stopping of the reversible electric machine (7) in order to no longer drive the power shaft (3, 12), in order to cause a progressive stopping (E9, E10) of the rotation of the gas turbine (2).
Fabien Mercier-Calvairac, Nicolas Claude Parmentier, Denis Antoine Julien Real
Filed: 1 Dec 21
Utility
Power Transmission System Comprising an Improved Oil Recovery Channel
4 Jan 24
A power transmission system for an aircraft turbine engine including a speed reducer including a ring gear that is able to rotate about an axis X, formed from half-rings having annular flanges clamped together by first fastener.
Juan-Luis MARCOS IZQUIERDO, Melody Elisabeth Laurent CAILLER, Patrice Jocelyn Francis GEDIN, Jean-Pierre SEREY
Filed: 24 Nov 21
Utility
System for remote monitoring of an area intended to accommodate at least one passenger of an aeroplane and aeroplane cabin equipped with such a remote monitoring system
2 Jan 24
Sébastien Sivignon, Claude Martin, Etienne Marecal, Ramon Blauwhoff
Filed: 6 Apr 18
Utility
Method and device for assisting with the navigation of a fleet of vehicles using an invariant Kalman filter
2 Jan 24
A method for assisting the navigation of a fleet of vehicles including main vehicle and a secondary vehicle movable relative to the main vehicle includes receiving data acquired by one or more sensors, the received data including relative kinematic data between the main vehicle and the secondary vehicle, and estimating a navigation state of the fleet of vehicles by an invariant Kalman filter using the received data as observations.
Axel Barrau
Filed: 23 Jul 19
Utility
Casting Ring for Obtaining a Product Made of Titanium Alloy or a Titanium-aluminum Intermetallic Alloy and Method Using Same
28 Dec 23
A casting ring having a first section made of a heat-conductive material and a second section made of a MAX phase alloy material, and a method for obtaining a product made of titanium alloy or a titanium-aluminum intermetallic compound by plasma torch melting, the alloy having an oriented structure, the method including heating the molten alloy surface in the casting ring with a plasma torch; cooling a cold zone of the casting ring over a length L1, the cooling forming a semi-solid crown of alloy; heating a hot zone of the casting ring over a length L2, thereby forming a solidification front, the flatness of which relative to a plane perpendicular to a drawing direction is less than 10°; and drawing the solidified alloy at a speed of more than 10−4 m/s in the drawing direction.
Pierre Jean SALLOT
Filed: 2 Dec 21
Utility
Method for Determining an Efficiency Fault of an Aircraft Turboshaft Engine Module
28 Dec 23
A method for determining an efficiency fault of at least one module of a turboshaft engine of an aircraft.
Sébastien Philippe Razakarivony, Christophe Favre, Julien Joseph, Jean Lamouroux
Filed: 28 Oct 21
Utility
Method for Manufacturing a Turbine Engine Vane
21 Dec 23
A method for manufacturing a turbine engine vane a root connected to a blade extending in a longitudinal direction includes the steps of providing a root; and providing mold with a first cavity and a second cavity that together define a recess in which the vane is formed.
Yann Jean-Pierre LEFAUX, Pierre Jean SALLOT
Filed: 25 Oct 21
Utility
Countercurrent Heat Exchanger for a Turbomachine, Turbomachine, and Method for Manufacturing the Exchanger
21 Dec 23
A counter-current heat exchanger for a turbomachine comprising a first and a second circuit, the first and the second circuit being respectively configured to receive a first gas flow and a second gas flow, each circuit including a secondary inlet manifold, an exchanging part and a secondary outlet manifold; the exchanging parts of the first circuit and of the second circuit being delimited by exchange walls configured to direct the first and the second gas flow along a first direction; and wherein the secondary inlet manifold and the secondary outlet manifold of the first circuit extend along a second direction substantially perpendicular to the first direction, and open onto a same face of the exchanger.
Ephraïm TOUBIANA, Fabien DESARNAUD, Frédéric LAURENSAN
Filed: 7 Oct 21
Utility
Method for Manufacturing a Blade for a Turbomachine
21 Dec 23
A method for manufacturing a blade for a turbine engine, including a root connected to a vane extending in a longitudinal direction, includes providing an assembly having a first part intended to form a root of the blade and a projecting second part projecting in the longitudinal direction from the first part; providing a mold comprising a first impression and a second impression delimiting together a cavity, said cavity comprising a first space and a second space; arranging the first part in the first space of the cavity and the second part in the second space of the cavity; and forming a third part by injecting an aluminium-based alloy in the cavity.
Yann Jean-Pierre LEFAUX, Pierre Jean Sallot
Filed: 25 Oct 21
Utility
Installation for supplying cryogenic fuel to the combustion chamber of a turbine engine
19 Dec 23
An installation for supplying a cryogenic fuel to a combustion chamber of a turbine engine of an aircraft including a tank, a mixing chamber, and one or more heat exchangers.
Thierry Sibilli, Sarah Rebholz
Filed: 27 May 21
Utility
Method for managing the propulsive power of an aircraft
12 Dec 23
A method for managing the propulsive power of an aircraft, the aircraft extending longitudinally along an axis X from the rear forwards and comprising at least two lateral propulsion systems each comprising a fan, each lateral propulsion system having a fan rotation speed N2 and at least one rear propulsion system configured to ingest a boundary layer of said aircraft, the rear propulsion system comprising a fan having a fan rotation speed N3, the management system comprising, during a cruising phase P4, a step of adjusting the rotation speed N3 of the rear propulsion system according to the following formula N3=a*N2 in which a is a constant.
Khaled Zarati, Panagiotis Giannakakis
Filed: 18 Jul 19
Utility
Casting slurry
5 Dec 23
A casting slurry for the manufacture of shell molds, including powder particles and a binder, further including a surfactant.
Wen Zhang
Filed: 21 Sep 18
Utility
Resin injection regulator, resin injection circuit and associated methods
28 Nov 23
The invention relates to a resin injection regulator for a resin injection circuit in a mould for producing a composite part, in particular a turbine engine composite part, characterised in that it comprises at least one vessel which is connected to said circuit and inside of which a movable wall means can be moved in a sealed manner, said movable wall means defining in said vessel a first cavity which forms a container for accumulation of resin and is designed to be connected to at least one part of said circuit, and a second cavity which is designed to be connected to a source of pressurised fluid, said movable wall means being designed to be urged by the pressurised fluid with which the second cavity is supplied in order to exert a pressure on the resin contained in the first cavity by isolating said resin from said fluid.
Marc-Emmanuel Jean François Techer, Nicolas Cambyse Ashtari, Raoul Jaussaud, Benoit Bazin, Thierry Chauvin, Olivier Foussard, Nate Gravelle, Adrien Touze
Filed: 8 Feb 18
Utility
Multi-rotor aircraft propulsion system with reconfigurable electric network
28 Nov 23
In the field of multi-rotor rotary-wing aircraft a propulsion system for such an aircraft includes a reconfigurable electric network for supplying the electric motors driving the rotors.
Thomas Klonowski, Thomas Barraco, Camel Serghine
Filed: 25 Mar 19