Patents by Inventor Arnaud DELEHOUZE
Arnaud DELEHOUZE 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).
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Patent number: 11976355Abstract: A method for producing a part having improved resistance to oxidation and high temperature-corrosion, includes the formation of an environmental barrier coating on an at least partially ceramic matrix composite material, the environmental barrier coating being formed by direct liquid injection-metal organic chemical vapor deposition.Type: GrantFiled: September 20, 2021Date of Patent: May 7, 2024Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SAPRAN CERAMICS, UNIVERSITE DE BORDEAUXInventors: Arnaud Delehouze, Eric Bouillon, Sylvain Lucien Jacques
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Patent number: 11958784Abstract: A method for manufacturing a turbomachine blade made of ceramic matrix composite component includes at least a structural part and a functional part secured to the structural part, the method including obtaining an assembly including a first preform of the functional part that is mounted on a second preform of the structural part or on the structural part, the first preform including a fibrous reinforcement of short fibres, and the second preform or the structural part comprising a woven fibrous reinforcement, and densification of the first preform of the assembly by infiltration with a molten composition.Type: GrantFiled: December 8, 2021Date of Patent: April 16, 2024Assignee: SAFRAN CERAMICSInventors: Arnaud Delehouze, Eric Bouillon, Gildas Garnier, Clément Marie Benoît Roussille
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Publication number: 20240116923Abstract: The present invention relates to a compound of the following general formula (I) or a pharmaceutically acceptable salt and/or solvate thereof, for use as drug for inhibiting ferroptosis.Type: ApplicationFiled: January 25, 2022Publication date: April 11, 2024Applicants: Seabelife, Centre National de la Recherche Scientifique (CNRS), Sorbonne Universite, Institut National de la Santé et de la Recherche Médicale (INSERM), Université Claude Bernard Lyon 1, Universite de Rennes 1Inventors: Stéphane BACH, Arnaud COMTE, Claire DELEHOUZE, Marie-Thérèse DIMANCHE-BOITREL, Peter GOEKJIAN
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Patent number: 11932942Abstract: A process for depositing a coating on a continuous fibre of carbon or silicon carbide from a precursor of the coating, includes heating a segment of the fibre in the presence of the coating precursor in a microwave field so as to bring the surface of the segment to a temperature allowing the coating to form on the segment from the coating precursor, wherein the segment of fibre is in the presence of a supercritical phase of the precursor of the coating in the reactor and the coating is formed by supercritical phase chemical deposition in the reactor.Type: GrantFiled: June 16, 2022Date of Patent: March 19, 2024Assignees: SAFRAN CERAMICS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUXInventors: Arnaud Delehouze, Eric Bouillon, Adrien Delcamp, Cédric Descamps
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Patent number: 11866373Abstract: A method for coating fibers, includes desizing sized short fibers having an average length less than or equal to 5 mm, the short fibers being made of ceramic material or carbon, sieving the desized short fibers in order to separate them from any agglomerates of sized short fibers still present, introducing the desized and sieved short fibers into a reactor, and coating the short fibers in the reactor by chemical vapor deposition in a fluidized bed.Type: GrantFiled: August 25, 2021Date of Patent: January 9, 2024Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SAFRAN CERAMICS, UNIVERSITE DE BORDEAUXInventors: Arnaud Delehouze, Eric Bouillon, Amine El Mansouri, Nathalie Dominique Bertrand, Alain Jean-Michel Guette
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Patent number: 11858859Abstract: A method for treating a carbon or ceramic yarn includes forming a coating on the yarn in a reaction zone of a reactor by heating a segment of the yarn in the presence of a gas phase in a microwave field, wherein the gas phase includes a mixture of a diluent gas and a coating precursor in the vapor state, and wherein the gas phase is formed at least by introducing the diluent gas into the reactor and mixing the introduced diluent gas with the coating precursor in the reactor before the reaction zone.Type: GrantFiled: August 11, 2021Date of Patent: January 2, 2024Assignees: SAFRAN CERAMICS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUXInventors: Arnaud Delehouze, Pierre Fenetaud, Sylvain Lucien Jacques
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Publication number: 20230399265Abstract: A method for manufacturing a turbomachine blade made of ceramic matrix composite component includes at least a structural part and a functional part secured to the structural part, the method including obtaining an assembly including a first preform of the functional part that is mounted on a second preform of the structural part or on the structural part, the first preform including a fibrous reinforcement of short fibres, and the second preform or the structural part comprising a woven fibrous reinforcement, and densification of the first preform of the assembly by infiltration with a molten composition.Type: ApplicationFiled: December 8, 2021Publication date: December 14, 2023Inventors: Arnaud DELEHOUZE, Eric BOUILLON, Gildas GARNIER, Clément Marie Benoît ROUSSILLE
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Publication number: 20230382813Abstract: A method for manufacturing a hollow part made of ceramic matrix or metal matrix composite, includes preparing a raw material including short fibers and a ceramic matrix precursor charge, positioning a sacrificial core in a molding cavity of injection-molding equipment, shaping the raw material by injection molding the raw material into the free space between the sacrificial core and an internal wall of the cavity to obtain a green part including the sacrificial core and the shaped raw material, extracting the green part from the equipment, densifying the raw material by flash sintering of the green part to transform the charge into a ceramic matrix, removing the sacrificial core to obtain a hollow part made of ceramic matrix or metal matrix composite, wherein the sacrificial core is coated with a flexible graphite sheet, with a graphite layer deposited by spraying or with a boron nitride paint layer before the injecting.Type: ApplicationFiled: October 12, 2021Publication date: November 30, 2023Inventors: Arnaud DELEHOUZE, Eric BOUILLON
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Publication number: 20230287563Abstract: A method for producing a part having improved resistance to oxidation and high temperature-corrosion, includes the formation of an environmental barrier coating on an at least partially ceramic matrix composite material, the environmental barrier coating being formed by direct liquid injection-metal organic chemical vapor deposition.Type: ApplicationFiled: September 20, 2021Publication date: September 14, 2023Inventors: Arnaud DELEHOUZE, Eric BOUILLON, Sylvain Lucien JACQUES
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Patent number: 11753594Abstract: A method for treating an aromatic mineral oil or a mixture of aromatic mineral oil and naphthenic mineral oil, the oil or the mixture of oils being loaded with polycyclic aromatic hydrocarbons, the method including a—optional removal of polycyclic aromatic hydrocarbon s having a molecular weight greater than or equal to 200 from the aromatic mineral oil or the mixture of aromatic mineral oil and naphthenic mineral oil loaded with polycyclic aromatic hydrocarbons; b—extraction, at a pressure lower than atmospheric pressure, of polycyclic aromatic hydrocarbons having a molecular weight lower than 200 solubilised in the oil or the mixture of oils obtained in step (a); and c—recovery of the oil or the mixture of oils depleted in polycyclic aromatic hydrocarbons.Type: GrantFiled: September 25, 2020Date of Patent: September 12, 2023Assignee: SAFRAN CERAMICSInventors: Jean-François Daniel René Potin, Arnaud Delehouze, Stéphane Roger André Goujard
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Publication number: 20230242453Abstract: A method for treating a carbon or ceramic yarn includes forming a coating on the yarn in a reaction zone of a reactor by heating a segment of the yarn in the presence of a gas phase in a microwave field, wherein the gas phase includes a mixture of a diluent gas and a coating precursor in the vapor state, and wherein the gas phase is formed at least by introducing the diluent gas into the reactor and mixing the introduced diluent gas with the coating precursor in the reactor before the reaction zone.Type: ApplicationFiled: August 11, 2021Publication date: August 3, 2023Inventors: Arnaud DELEHOUZE, Pierre FENETAUD, Sylvain Lucien JACQUES
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Publication number: 20230227368Abstract: A method for coating fibers, includes desizing sized short fibers having an average length less than or equal to 5 mm, the short fibers being made of ceramic material or carbon, sieving the desized short fibers in order to separate them from any agglomerates of sized short fibers still present, introducing the desized and sieved short fibers into a reactor, and coating the short fibers in the reactor by chemical vapor deposition in a fluidized bed.Type: ApplicationFiled: August 25, 2021Publication date: July 20, 2023Inventors: Arnaud DELEHOUZE, Eric BOUILLON, Amine EL MANSOURI, Nathalie Dominique BERTRAND, Alain Jean-Michel GUETTE
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Patent number: 11674219Abstract: A method for densifying one or more porous substrates with pyrolytic carbon by chemical vapour infiltration, includes admitting, at the inlet of the densification furnace, a reactive gaseous phase including at least one pyrolytic carbon precursor; reacting at least a fraction of the reactive gaseous phase with the porous substrate or substrates; extracting, at the outlet of the densification furnace, gaseous effluents originating from the reactive gaseous phase; reintroducing, with the reactive gaseous phase admitted at the inlet of the densification furnace, at least a fraction of the gaseous effluents extracted at the outlet of the furnace, wherein the fraction of the gaseous effluents introduced with the reactive gaseous phase includes at least one polyaromatic hydrocarbon compound.Type: GrantFiled: March 19, 2021Date of Patent: June 13, 2023Assignee: SAFRAN CERAMICSInventors: Jean-François Daniel René Potin, Arnaud Delehouze, Stéphane Roger André Goujard
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Publication number: 20230174431Abstract: A method for coating fibres includes coating short fibres having an average length less than or equal to 5 mm by chemical vapour deposition in a fluidised bed, the short fibres treated being made of ceramic material or carbon and being mixed with spacer particles distinct from the short fibres, the spacer particles having an average diameter greater than or equal to 20 ?m.Type: ApplicationFiled: June 21, 2021Publication date: June 8, 2023Inventors: Arnaud DELEHOUZE, Eric BOUILLON, Nathalie Dominique BERTRAND, Alain Jean-Michel GUETTE, Armine EL MANSOURI
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Publication number: 20230160056Abstract: A method for densifying one or more porous substrates with pyrolytic carbon by chemical vapour infiltration, includes admitting, at the inlet of the densification furnace, a reactive gaseous phase including at least one pyrolytic carbon precursor; reacting at least a fraction of the reactive gaseous phase with the porous substrate or substrates; extracting, at the outlet of the densification furnace, gaseous effluents originating from the reactive gaseous phase; reintroducing, with the reactive gaseous phase admitted at the inlet of the densification furnace, at least a fraction of the gaseous effluents extracted at the outlet of the furnace, wherein the fraction of the gaseous effluents introduced with the reactive gaseous phase includes at least one polyaromatic hydrocarbon compound.Type: ApplicationFiled: March 19, 2021Publication date: May 25, 2023Inventors: Jean-François Daniel René POTIN, Arnaud DELEHOUZE, Stéphane Roger André GOUJARD
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Patent number: 11655044Abstract: An rear fairing for a pylon supporting an aircraft turbojet engine forms an aerodynamic surface covering the base of the pylon. The rear fairing is elongated in a longitudinal direction and includes a floor arranged opposite the hot gases exiting the turbojet engine and side walls constituting aerodynamic surfaces. The floor and the side walls include ceramic matrix composite materials made from preforms formed by layers of superimposed warp and weft yarns, the preforms have interlayer weaving yarns connecting the layers to one another.Type: GrantFiled: August 23, 2019Date of Patent: May 23, 2023Assignee: Safran NacellesInventors: Bertrand Desjoyeaux, Sylvain Sentis, Arnaud Delehouze, François Taillard
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Patent number: 11578003Abstract: A process for depositing a coating on short fibres of carbon or silicon carbide from a coating precursor, the short fibres having a length of between 50 ?m and 5 mm, the process including at least heating the short fibres by placing a mixture including the fibres and a liquid phase of the coating precursor in a microwave field so as to bring the surface of the fibres to a temperature allowing the coating on the fibres from the coating precursor to be formed by calefaction.Type: GrantFiled: December 18, 2018Date of Patent: February 14, 2023Assignees: SAFRAN CERAMICS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUXInventors: Arnaud Delehouze, Fanny Petibon
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Patent number: 11530166Abstract: A process for manufacturing pyrocarbon, includes forming pyrocarbon by a calefaction process from at least one C2 to C6 alcohol or polyalcohol precursor, the precursor being ethanol, rough laminar pyrocarbon being obtained by imposing a temperature of between 1250° C. and 1325° C. during calefaction.Type: GrantFiled: October 18, 2018Date of Patent: December 20, 2022Assignees: SAFRAN CERAMICS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Arnaud Delehouze, Amandine Lorriaux, Laurence Maille, Patrick David
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Patent number: 11530727Abstract: A process for manufacturing a friction component made of composite material, includes the densification of a fibrous preform of carbon yarns by a matrix including at least pyrocarbon and at least one ZrOxCy phase, where 1?x?2 and 0?y?1, the matrix being formed by chemical vapor infiltration at least from a first gaseous precursor of pyrocarbon and a second gaseous precursor including zirconium, the second precursor being an alcohol or a C1 to C6 polyalcohol modified by linking the oxygen atom of at least one alcohol function to a group of formula —Zr—R3, the substituents R being identical or different, and R being selected from: —H, C1 to C5 carbon chains and halogen atoms.Type: GrantFiled: October 16, 2018Date of Patent: December 20, 2022Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SAFRAN CERAMICSInventors: Eric Bouillon, Arnaud Delehouze, Amandine Lorriaux, Laurence Maille
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Publication number: 20220325190Abstract: A method for treating an aromatic mineral oil or a mixture of aromatic mineral oil and naphthenic mineral oil, the oil or the mixture of oils being loaded with polycyclic aromatic hydrocarbons, the method including a—optional removal of polycyclic aromatic hydrocarbon s having a molecular weight greater than or equal to 200 from the aromatic mineral oil or the mixture of aromatic mineral oil and naphthenic mineral oil loaded with polycyclic aromatic hydrocarbons; b—extraction, at a pressure lower than atmospheric pressure, of polycyclic aromatic hydrocarbons having a molecular weight lower than 200 solubilised in the oil or the mixture of oils obtained in step (a); and c—recovery of the oil or the mixture of oils depleted in polycyclic aromatic hydrocarbons.Type: ApplicationFiled: September 25, 2020Publication date: October 13, 2022Inventors: Jean-François Daniel René POTIN, Arnaud DELEHOUZE, Stéphane Roger André GOUJARD