Patents by Inventor Laurent Paul Dudon
Laurent Paul Dudon 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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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: 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: 11306385Abstract: Tooling for the coating of lips of a turbomachine rotor sector, comprising a support for a rotor sector, a centering plate adapted to be inserted into a rotor sector, said centering plate having a central housing, a tool, said tool comprising a centering arm, adapted to be inserted into the central housing of the centering plate, a torch, adapted to spray a ceramic material, a machining tool, said tooling being configured so as to position the tool relative to the rotor sector via the centering plate, and to simultaneously perform on the rotor sector a spraying of ceramic material and a machining on two distinct sectors of the lips.Type: GrantFiled: February 18, 2020Date of Patent: April 19, 2022Assignee: SAFRAN AIRCRAFT ENGINESInventors: Laurent Paul Dudon, Mickaël Thiercelin
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Publication number: 20210277510Abstract: A bond sublayer is applied to a part and a ceramic layer is deposited on the bond sublayer by plasma spraying. The ceramic layer is then sintered.Type: ApplicationFiled: March 6, 2020Publication date: September 9, 2021Applicant: Safran Aircraft EnginesInventors: Pascal Fabrice BILHE, Laurent Paul Dudon, Pascal Jacques Raymond Martinet
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Publication number: 20200263286Abstract: Tooling for the coating of lips of a turbomachine rotor sector, comprising a support for a rotor sector, a centering plate adapted to be inserted into a rotor sector, said centering plate having a central housing, a tool, said tool comprising a centering arm, adapted to be inserted into the central housing of the centering plate, a torch, adapted to spray a ceramic material, a machining tool, said tooling being configured so as to position the tool relative to the rotor sector via the centering plate, and to simultaneously perform on the rotor sector a spraying of ceramic material and a machining on two distinct sectors of the lips.Type: ApplicationFiled: February 18, 2020Publication date: August 20, 2020Applicant: SAFRAN AIRCRAFT ENGINESInventors: Laurent Paul DUDON, Mickaël THIERCELIN
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Patent number: 10107111Abstract: A corrosion-resistant abradable covering to adhesively bond to a wear portion of a structural part, the covering including at least a polyester-based matrix and an aluminum alloy filler that are molded together.Type: GrantFiled: July 16, 2013Date of Patent: October 23, 2018Assignee: Safran Aéro BoostersInventors: Laurent Paul Dudon, Philippe Charles Alain Le Biez, Serge Selezneff
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Patent number: 9920431Abstract: A method of preparing a substrate to receive a metal coating deposited by thermal spraying, the method including the following steps: a) depositing a layer of adhesive on the zone to be coated, the layer having a uniform thickness greater than 10 ?m and less than 100 ?m; b) before the adhesive dries, cold spraying a metal powder onto the zone to be coated, so that powder particles become embedded at least in part in the layer of adhesive; and c) drying the adhesive in which the powder particles remain held captive, thereby forming an undercoat suitable for receiving a metal coating deposited by thermal spraying. The method is applicable to protecting the leading edges of fan blades.Type: GrantFiled: July 3, 2014Date of Patent: March 20, 2018Assignee: SNECMAInventors: Laurent Paul Dudon, Antonio Cremildo Arantes
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Patent number: 9664201Abstract: A method of making a reinforcement for reinforcing a leading edge of a blade, the method including depositing a metal coating on the leading edge by thermal spraying in compression. A blade, for example a blade for a turbine engine, a helicopter, or a propeller, can have the leading edge protected by such a reinforcement.Type: GrantFiled: August 9, 2012Date of Patent: May 30, 2017Assignee: SNECMAInventors: Laurent Paul Dudon, Antonio Cremildo Arantes
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Publication number: 20160369407Abstract: A method of preparing a substrate to receive a metal coating deposited by thermal spraying, the method including the following steps: a) depositing a layer of adhesive on the zone to be coated, the layer having a uniform thickness greater than 10 ?m and less than 100 ?m; b) before the adhesive dries, cold spraying a metal powder onto the zone to be coated, so that powder particles become embedded at least in part in the layer of adhesive; and c) drying the adhesive in which the powder particles remain held captive, thereby forming an undercoat suitable for receiving a metal coating deposited by thermal spraying. The method is applicable to protecting the leading edges of fan blades.Type: ApplicationFiled: July 3, 2014Publication date: December 22, 2016Applicant: SNECMAInventors: Laurent Paul DUDON, Antonio Cremildo ARANTES
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Publication number: 20160281206Abstract: A YSZ-type ceramic layer is deposited on a tie sublayer by thermal spraying using a plasma arc torch, said tie sublayer being itself deposited on the part to be protected. A sintering post treatment is carried out by means of a sweep of the ceramic layer by the beam of the plasma arc torch, the temperature at the point of impact of the beam at the surface of the ceramic layer (C) being, during this sweep, between 1300° C. and 1700° C.Type: ApplicationFiled: November 19, 2014Publication date: September 29, 2016Applicant: SNECMAInventors: Pascal Fabrice BILHE, Laurent Paul DUDON, Pascal Jacques, Raymond MARTINET
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Publication number: 20150184526Abstract: A corrosion-resistant abradable covering to adhesively bond to a wear portion of a structural part, the covering including at least a polyester-based matrix and an aluminum alloy filler that are molded together.Type: ApplicationFiled: July 16, 2013Publication date: July 2, 2015Applicant: SNECMAInventors: Laurent Paul Dudon, Philippe Charles, Alain Le Biez, Serge Selezneff
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Publication number: 20140193271Abstract: A method of making a reinforcement for reinforcing a leading edge of a blade, the method including depositing a metal coating on the leading edge by thermal spraying in compression. A blade, for example a blade for a turbine engine, a helicopter, or a propeller, can have the leading edge protected by such a reinforcement.Type: ApplicationFiled: August 9, 2012Publication date: July 10, 2014Applicant: SNECMAInventors: Laurent Paul Dudon, Antonio Cremildo Arantes
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Publication number: 20120107110Abstract: A thermal protection coating, in particular for a turbine-engine part (12), the coating being deposited by thermal spraying onto the surface of the part (12) and including at least 80% by volume of hollow ceramic microbeads distributed in a metal alloy based on nickel or cobalt, it being possible for the coating to be deposited on a bonding layer (22) of metal alloy and for it to be covered in a layer (26) providing protection against erosion or against friction wear, or in a reflective layer that reflects thermal radiation.Type: ApplicationFiled: July 1, 2010Publication date: May 3, 2012Applicant: SNECMAInventors: Antonio Cremildo Arantes, Laurent Paul Dudon, Claude Marcel Mons
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Patent number: 7144602Abstract: The invention proposes a process for obtaining a flexible/adaptive thermal barrier, the thermal barrier comprising a ceramic layer deposited on a substrate covered with a sublayer, the ceramic layer being deposited by thermal spraying using a torch. The ceramic layer is deposited in a single pass and the torch is set to give the ceramic layer a thickness of at least 80 ?m.Type: GrantFiled: May 17, 2004Date of Patent: December 5, 2006Assignee: Snecma MoteursInventors: Per Bengtsson, Laurent Paul Dudon