Patents by Inventor Serge Georges Vladimir SELEZNEFF
Serge Georges Vladimir SELEZNEFF 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: 11933181Abstract: An abradable coating for a turbomachine part, includes a matrix made of a first metal material and particles made of a second metal material that are dispersed in the matrix, the first metal material having a melting temperature greater than 900° C., the second metal material having a melting temperature at least 50° C. lower than the melting temperature of the first metal material.Type: GrantFiled: May 17, 2022Date of Patent: March 19, 2024Assignee: SAFRAN AIRCRAFT ENGINESInventors: Philippe Charles Alain Le Biez, Nicolas Droz, Lisa Pin, Serge Georges Vladimir Selezneff
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Publication number: 20230089114Abstract: The invention relates to an abradable coating for a turbomachine, comprising a mineral compound having a Mohs hardness of 6 or less and a melting temperature of more than 450° C. or even 800° C., and a polymeric compound with a content of between 40% and 70% by volume.Type: ApplicationFiled: February 15, 2021Publication date: March 23, 2023Inventors: Guillaume FRADET, Laurent Paul DUDON, Serge Georges Vladimir SELEZNEFF
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Publication number: 20220282634Abstract: An abradable coating for a turbomachine part, includes a matrix made of a first metal material and particles made of a second metal material that are dispersed in the matrix, the first metal material having a melting temperature greater than 900° C., the second metal material having a melting temperature at least 50° C. lower than the melting temperature of the first metal material.Type: ApplicationFiled: May 17, 2022Publication date: September 8, 2022Inventors: Philippe Charles Alain LE BIEZ, Nicolas DROZ, Lisa PIN, Serge Georges Vladimir SELEZNEFF
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Publication number: 20220282633Abstract: An abradable coating for a turbomachine, as well as a turbomachine module and a turbomachine including such an abradable coating, the abradable coating including, with a content of greater than 50% by volume, an inorganic compound whose Mohs hardness is less than 6 and whose melting temperature is greater than 900° C.Type: ApplicationFiled: July 22, 2020Publication date: September 8, 2022Applicant: SAFRAN AIRCRAFT ENGINESInventors: Guillaume FRADET, Laurent Paul DUDON, Serge Georges Vladimir SELEZNEFF
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Publication number: 20220243604Abstract: The present invention relates to a method for continuously manufacturing an abradable sealing element, this element comprising a support substrate covered by a coating comprising at least two successive layers, each comprising a sublayer of abradable material and a sublayer of erosion-control material. This method is noteworthy in that it comprises the steps consisting in: —a) placing at least one support substrate on a rotary carousel around which are placed at least two thermal spray torches enabling the sublayer of abradable material and that of erosion-control material to be deposited, —b) rotating the carousel so as to bring said support substrate successively opposite one then the other of the two torches and to carry out the deposition of the various sublayers and to repeat this operation so as to obtain said sealing element.Type: ApplicationFiled: July 23, 2020Publication date: August 4, 2022Applicant: Safran Aircraft EnginesInventors: Hubert Jean-Yves ILLAND, Serge Georges Vladimir SELEZNEFF, Guillaume FRADET, Laurent Paul DUDON
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Patent number: 11359508Abstract: An abradable coating includes a matrix and particles that are dispersed in the matrix, the particles being made of a material switching into a fluid phase under the effect of the increase in temperature upon contact between a tip of a blading and the abradable coating.Type: GrantFiled: August 20, 2019Date of Patent: June 14, 2022Assignee: SAFRAN AIRCRAFT ENGINESInventors: Philippe Charles Alain Le Biez, Nicolas Droz, Lisa Pin, Serge Georges Vladimir Selezneff
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Patent number: 11174748Abstract: A ring-shaped thermomechanical part for a turbine engine, comprising at least one coating including a polymeric matrix and fillers in non-deflagrating carbon exclusively comprising the chemical element C. A turbine engine comprising such a part.Type: GrantFiled: August 25, 2016Date of Patent: November 16, 2021Assignee: SAFRAN AIRCRAFT ENGINESInventors: Philippe Charles Alain Le Biez, Serge Georges Vladimir Selezneff
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Publication number: 20210340069Abstract: A process for manufacturing a porous abradable coating includes: filling a mold with hollow glass or thermosetting polymer beads and a slurry; and sintering heat treatment to obtain a ceramic layer with pores. A maximum sintering temperature of the green body of the ceramic part is either higher than the melting temperature of the hollow glass beads so that at the end of the sintering heat treatment the hollow glass beads are melted, or higher than the decomposition temperature of the hollow thermosetting polymer beads so that at the end of the sintering heat treatment the hollow thermosetting polymer beads are decomposed.Type: ApplicationFiled: October 9, 2019Publication date: November 4, 2021Applicant: SAFRAN AIRCRAFT ENGINESInventors: Philippe Charles Alain LE BIEZ, Nicolas DROZ, Ludovic Philippe LIAIS, Serge Georges Vladimir SELEZNEFF
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Publication number: 20210317584Abstract: A process for manufacturing an abradable layer, includes compressing a powder composition including at least micrometric ceramic particles having a number-average form factor greater than or equal to 3, a mass content of said micrometric ceramic particles in the powder composition being greater than or equal to 85%, the form factor of a particle being defined as the ratio [largest dimension of the particle]/[largest cross-sectional dimension of the particle], and sintering the powder composition thus compressed to obtain the abradable layer, wherein a temperature imposed during sintering, the sintering time and the compression pressure applied are selected so as to obtain a volume porosity rate of the abradable layer greater than or equal to 20%.Type: ApplicationFiled: June 20, 2019Publication date: October 14, 2021Inventors: Serge Georges Vladimir SELEZNEFF, Philippe Charles Alain LE BIEZ, Arnaud Louis Gabriel FREGEAC, Florence ANSART, Claude Gilbert Jean-Pierre ESTOURNES
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Publication number: 20210172331Abstract: An abradable coating includes a matrix and particles that are dispersed in the matrix, the particles being made of a material switching into a fluid phase under the effect of the increase in temperature upon contact between a tip of a blading and the abradable coating.Type: ApplicationFiled: August 20, 2019Publication date: June 10, 2021Inventors: Philippe Charles Alain LE BIEZ, Nicolas DROZ, Lisa PIN, Serge Georges Vladimir SELEZNEFF
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Patent number: 10870152Abstract: A method of fabricating an abradable coating of varying density, and such an abradable coating of varying density. According to the invention, the method comprises the following steps: providing a substrate (32) having a first portion with its surface situated at a first level (A), and a second portion with its surface situated at a second level (B) different from the first level; depositing a precursor material on the first and second portions of the substrate (32); compressing the precursor material between the substrate and a bearing surface; and sintering the precursor material as compressed in this way in order to obtain an abradable coating (36) having a first portion (36a) on the first portion of the substrate, and possessing a first density, and a second portion (36b) on the second portion of the substrate, and possessing a second density distinct from the first.Type: GrantFiled: December 13, 2016Date of Patent: December 22, 2020Assignees: SAFRAN AIRCRAFT ENGINES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PAUL SABATIER - TOULOUSE IIIInventors: Philippe Charles Alain Le Biez, Geoffroy Chevallier, Romain Epherre, Claude Estournes, Jean-Baptiste Mottin, Serge Georges Vladimir Selezneff
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Patent number: 10549310Abstract: A device applies a coating to a surface of an turbomachine annular casing, wherein the casing has an abradable layer obtained by polymerising a resin. The device includes first support means and, optionally, second automated means movable relative to the first support means. The automated means includes means for depositing said resin on the surface of the casing. The automated means further includes means for spreading the resin on the surface of the casing, and means for unwinding a plastic film that is intended to be interposed between said spreading means and the resin.Type: GrantFiled: June 10, 2016Date of Patent: February 4, 2020Assignee: SAFRAN AIRCRAFT ENGINESInventors: Thierry Sacy, Patrice Le Bec, Philippe Charles Alain Le Biez, Serge Georges Vladimir Selezneff, Franck Bernard Léon Varin, Michel Lenfant, Fabrice Marsaleix, Jacques Chazal Dufour
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Publication number: 20180361480Abstract: A method of fabricating an abradable coating of varying density, and such an abradable coating of varying density. According to the invention, the method comprises the following steps: providing a substrate (32) having a first portion with its surface situated at a first level (A), and a second portion with its surface situated at a second level (B) different from the first level; depositing a precursor material on the first and second portions of the substrate (32); compressing the precursor material between the substrate and a bearing surface; and sintering the precursor material as compressed in this way in order to obtain an abradable coating (36) having a first portion (36a) on the first portion of the substrate, and possessing a first density, and a second portion (36b) on the second portion of the substrate, and possessing a second density distinct from the first.Type: ApplicationFiled: December 13, 2016Publication date: December 20, 2018Applicants: SAFRAN AIRCRAFT ENGINES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PAUL SABATIER - TOULOUSE IIIInventors: Philippe Charles Alain Le Biez, Geoffroy CHEVALLIER, Romain EPHERRE, Claude ESTOURNES, Jean-Baptiste MOTTIN, Serge Georges Vladimir SELEZNEFF
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Publication number: 20180178243Abstract: A device applies a coating to a surface of an turbomachine annular casing, wherein the casing has an abradable layer obtained by polymerising a resin. The device includes first support means and, optionally second automated means movable relative to the first support means. The automated means includes means for depositing said resin on the surface of the casing. The automated means further includes means for spreading the resin on the surface of the casing, and means for unwinding a plastic film that is intended to be interposed between said spreading means and the resin.Type: ApplicationFiled: June 10, 2016Publication date: June 28, 2018Applicant: SAFRAN AIRCRAFT ENGINESInventors: Thierry Sacy, Patrice Le Bec, Philippe Charles Alain Le Biez, Serge Georges Vladimir Selezneff, Franck Bernard Léon Varin, Michel Lenfant, Fabrice Marsaleix, Jacques Chazal Dufour
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Publication number: 20170058688Abstract: A ring-shaped thermomechanical part for a turbine engine, comprising at least one coating including a polymeric matrix and fillers in non-deflagrating carbon exclusively comprising the chemical element C. A turbine engine comprising such a part.Type: ApplicationFiled: August 25, 2016Publication date: March 2, 2017Applicant: SAFRAN AIRCRAFT ENGINESInventors: Philippe Charles Alain LE BIEZ, Serge Georges Vladimir SELEZNEFF