Patents by Inventor Sebastien CHALAUD
Sebastien CHALAUD 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).
-
Patent number: 11156114Abstract: A turbomachine including at least one stator vane sector (10) and a fluid distribution circuit (22), the stator vane sector comprising at least one vane (12), a fluid inlet (25a), a fluid outlet (25b), and a channel (24a) providing fluid flow connection between the fluid inlet and the fluid outlet while extending at least in part in the vane (12), the vane and the channel being adapted, to enable heat to be exchanged between a hot fluid passing through the channel and a stream of cold air passing through the vane sector, the fluid distribution circuit (22) presenting a feed pipe (22a) and a recovery pipe (22b), the fluid inlet (25a) being in fluid flow connection with a branch tapping (23a) of the feed pipe (22a) while the fluid outlet (25b) is in fluid flow connection with a branch tapping (23b) of the recovery pipe (22b).Type: GrantFiled: March 31, 2016Date of Patent: October 26, 2021Assignee: SAFRAN AIRCRAFT ENGINESInventors: Sébastien Chalaud, Christian Vessot
-
Patent number: 11143462Abstract: A heat exchange and noise reduction panel the panel for an aircraft comprising: an external surface intended to be swept by an airflow and from which fins extend along a first and a second main predetermined direction; cavities forming Helmholtz resonators, linked to the first ends of channels for the passage of air, the second ends of which communicate with said airflow, such that said channels form necks, referred to as Helmholtz resonators, extending substantially along the first direction; and at least one oil flow chamber extending between said external surface and said at least one cavity, and intended to discharge the thermal energy carried by the oil, wherein said channels are formed, at least in part, inside said fins.Type: GrantFiled: October 23, 2015Date of Patent: October 12, 2021Assignee: SAFRAN AIRCRAFT ENGINESInventors: Bellal Waissi, Sébastien Chalaud, Lancelot Guillou, Jacky Novi Mardjono, Guillaume Mathon-Margueritte, Georges Jean Xavier Riou, Claude Sensiau
-
Publication number: 20210062731Abstract: A method for controlling the fuel injection of a turbine engine using a fuel supply circuit. The supply circuit includes a pilot injection line and a main injection line. During a transition of the supply distribution between the pilot injection line and the main supply line, the method includes the following steps: a) determining at least a minimum value to be maintained for a pressure value; b) determining at least one hydraulic quantity of the supply circuit; c) based on the determined hydraulic quantity of the supply circuit, calculating a calculated fuel supply distribution value corresponding to the minimum value to be maintained; and switching the fuel supply distribution to the calculated fuel distribution value.Type: ApplicationFiled: December 21, 2018Publication date: March 4, 2021Applicant: SAFRAN AIRCRAFT ENGINESInventors: Mohammed-Lamine BOUTALEB, Sebastien CHALAUD, Gwenole Yann LE PACHE
-
Patent number: 10473032Abstract: The invention concerns a fuel system (1) for a turbomachine comprising: —a control circuit (9a), —a main circuit (9b), —a flow rate regulator (2), suitable for regulating the flow of fuel in the control circuit (9a) and in the main circuit (9b) depending on the speed of the turbomachine, and —a drain tank (4) being designed to draw fuel from, store fuel in and drain fuel into the main circuit (9b) on the basis of the pressure difference between the main circuit (9b) and the tank (5) or the high-pressure pump (6) to which it is connected.Type: GrantFiled: September 1, 2014Date of Patent: November 12, 2019Assignee: SAFRAN AIRCRAFT ENGINESInventors: Clement Bernard, Loic Pora, Sebastien Chalaud
-
Patent number: 10465910Abstract: A multi-point fuel injection device for an aircraft engine, including an inlet line, at least two injection lines, and a purge line, a fuel distributor member connected to each line and including a moveable element which includes an injection passage, in which the moveable element additionally includes a purge passage, and is configured to adopt a first range of positions in which the injection passage interconnects the inlet line and the injection lines, and a second range of positions in which the injection passage interconnects the inlet line and at least a first injection line while the purge passage interconnects the purge line and at least a second injection line, the device additionally includes an actuator adapted to move the moveable element into a safety position when a failure of the distribution member is detected, the injection passage interconnecting, in this safety position of the moveable element, the inlet line and the first injection line while the purge passage does not interconnect the purType: GrantFiled: November 20, 2014Date of Patent: November 5, 2019Assignee: SAFRAN AIRCRAFT ENGINESInventor: Sebastien Chalaud
-
Patent number: 10072578Abstract: A system of injecting fuel into the combustion chamber of an engine, including at least two fuel circuits, one permanent flow circuit and one intermittent flow circuit, fuel proportioning and distribution devices for proportioning fuel and distributing fuel between the two circuits and a controller. When an order to fill circuits with fuel after the circuit with intermittent flow has been drained is received, the controller is adapted to control the proportioning and distribution devices to obtain a predetermined fuel flow higher than the flow corresponding to the filling order and to supply the resulting surplus of fuel to the intermittent flow circuit for a predetermined duration.Type: GrantFiled: August 20, 2014Date of Patent: September 11, 2018Assignee: SAFRAN AIRCRAFT ENGINESInventor: Sebastien Chalaud
-
Patent number: 10072581Abstract: A multi-body gas turbine engine, especially an aircraft engine, comprising at least one low-pressure rotating body, a high-pressure rotating body, and a starter designed to rotate the high-pressure body in order to start the engine, wherein the starter is coupled to the low-pressure body and the engine comprises a first disengageable coupling device disposed between the low-pressure body and the high-pressure body, for rotatably connecting the high-pressure body to the low-pressure body so as to allow the starting of the engine by means of the starter.Type: GrantFiled: May 7, 2015Date of Patent: September 11, 2018Assignee: SAFRAN AIRCRAFT ENGINESInventors: Bellal Waissi, Sébastien Chalaud, Alain Pierre Garassino
-
Publication number: 20180094584Abstract: The invention relates to a turbine engine, such as a turbojet engine or a turboprop engine of an aeroplane, including at least one oil circuit (8) and cooling means (16) for cooling the oil of said circuit (8), the cooling means (16) including a refrigerant circuit (17) provided with a first heat exchanger (18) capable of exchanging heat between the refrigerant and the air and forming a condenser, a second heat exchanger (19) capable of exchanging heat between the refrigerant and the oil of the oil circuit and forming an evaporator, a pressure reducer (20), a compressor (21) and first regulator means (31) capable of regulating the pressure of the refrigerant entering the first exchanger (18).Type: ApplicationFiled: April 1, 2016Publication date: April 5, 2018Applicant: Safran Aircraft EnginesInventor: Sebastien Chalaud
-
Publication number: 20180087392Abstract: A turbomachine including at least one stator vane sector (10) and a fluid distribution circuit (22), the stator vane sector comprising at least one vane (12), a fluid inlet (25a), a fluid outlet (25b), and a channel (24a) providing fluid flow connection between the fluid inlet and the fluid outlet while extending at least in part in the vane (12), the vane and the channel being adapted, to enable heat to be exchanged between a hot fluid passing through the channel and a stream of cold air passing through the vane sector, the fluid distribution circuit (22) presenting a feed pipe (22a) and a recovery pipe (22b), the fluid inlet (25a) being in fluid flow connection with a branch tapping (23a) of the feed pipe (22a) while the fluid outlet (25b) is in fluid flow connection with a branch tapping (23b) of the recovery pipe (22b).Type: ApplicationFiled: March 31, 2016Publication date: March 29, 2018Applicant: SAFRAN AIRCRAFT ENGINESInventors: Sébastien CHALAUD, Christian VESSOT
-
Patent number: 9909498Abstract: A system for supplying a turbomachine with fluid, the supply system including a low-pressure pumping unit intended to increase the pressure of the fluid flowing toward a downstream circuit. The downstream circuit divides at an inlet node, situated between the low-pressure pumping unit and the high-pressure volumetric pump, into a circuit supplying an injection system and a variable geometries supply circuit. The circuit supplying the injection system includes a high-pressure volumetric pump. The variable geometries supply circuit is configured to convey the fluid toward variable geometry from the inlet node to an outlet node connecting the variable geometries supply circuit to the upstream circuit between two pumps of the low-pressure pumping unit.Type: GrantFiled: April 27, 2015Date of Patent: March 6, 2018Assignee: SAFRAN AIRCRAFT ENGINESInventor: Sebastien Chalaud
-
Publication number: 20170292795Abstract: A heat exchange and noise reduction panel the panel for an aircraft comprising: an external surface intended to be swept by an airflow and from which fins extend along a first and a second main predetermined direction; cavities forming Helmholtz resonators, linked to the first ends of channels for the passage of air, the second ends of which communicate with said airflow, such that said channels form necks, referred to as Helmholtz resonators, extending substantially along the first direction; and at least one oil flow chamber extending between said external surface and said at least one cavity, and intended to discharge the thermal energy carried by the oil, characterized in that wherein said channels are formed, at least in part, inside said fins.Type: ApplicationFiled: October 23, 2015Publication date: October 12, 2017Applicant: SAFRAN AIRCRAFT ENGINESInventors: Bellal Waissi, Sébastien Chalaud, Lancelot Guillou, Jacky Novi Mardjono, Guillaume Mathon-Margueritte, Georges Jean Xavier Riou, Claude Sensiau
-
Publication number: 20170074169Abstract: A multi-body gas turbine engine, especially an aircraft engine, comprising at least one low-pressure rotating body , a high-pressure rotating body, and a starter to rotate the high-pressure body in order to start the engine, wherein the starter is coupled to the low-pressure body and the engine comprises a first disengageable coupling device disposed between the low-pressure body and the high-pressure body , for rotatably connecting the high-pressure body to the low-pressure body so as to allow the starting of the engine by means of the starter.Type: ApplicationFiled: May 7, 2015Publication date: March 16, 2017Applicant: SAFRAN AIRCRAFT ENGINESInventors: Bellal Waissi, Sébastien Chalaud, Alain Pierre Garassino
-
Publication number: 20170051671Abstract: A system for supplying a turbomachine with fluid, the supply system including a low-pressure pumping unit intended to increase the pressure of the fluid flowing toward a downstream circuit. The downstream circuit divides at an inlet node, situated between the low-pressure pumping unit and the high-pressure volumetric pump, into a circuit supplying an injection system and a variable geometries supply circuit. The circuit supplying the injection system includes a high-pressure volumetric pump. The variable geometries supply circuit is configured to convey the fluid toward variable geometry from the inlet node to an outlet node connecting the variable geometries supply circuit to the upstream circuit between two pumps of the low-pressure pumping unit.Type: ApplicationFiled: April 27, 2015Publication date: February 23, 2017Applicant: SNECMAInventor: Sebastien CHALAUD
-
Publication number: 20170009659Abstract: The invention relates to a fuel system (1) for a turbine engine, adapted for injecting fuel in a combustion chamber (5) of the turbine engine, comprising: a pilot circuit (10), adapted for injecting fuel in the combustion chamber (5) by means of a pilot pipe (14), a main circuit (20), adapted for injecting fuel in the combustion chamber (5) by means of a main pipe (24), the fuel system (1) being characterized in that it also comprises a thermal conductor (30) confined between the pilot pipe (14) and the main pipe (24) and configured to direct the thermal flow from the main pipe (24) to the pilot pipe (14).Type: ApplicationFiled: February 10, 2015Publication date: January 12, 2017Inventors: Sebastien CHALAUD, Olivier Robert Michel DELEPIERRE-MASSUE
-
Publication number: 20160298850Abstract: A multi-point fuel injection device for an aircraft engine, including an inlet line, at least two injection lines, and a purge line, a fuel distributor member connected to each line and including a moveable element which includes an injection passage, in which the moveable element additionally includes a purge passage, and is configured to adopt a first range of positions in which the injection passage interconnects the inlet line and the injection lines, and a second range of positions in which the injection passage interconnects the inlet line and at least a first injection line while the purge passage interconnects the purge line and at least a second injection line, the device being additionally includes an actuator adapted to move the moveable element into a safety position when a failure of the distribution member is detected, the injection passage (223) interconnecting, in this safety position of the moveable element, the inlet line and the first injection line while the purge passage does not interconType: ApplicationFiled: November 20, 2014Publication date: October 13, 2016Applicant: SNECMAInventor: Sebastien CHALAUD
-
Patent number: 9464595Abstract: A method of controlling a thrust reverser made up of a plurality of pieces of equipment, wherein, in the event of it being detected that one of the pieces of equipment has not activated by the end of a predetermined activation period, an error message relating to the malfunction of the thrust reverser is generated, and in spite of the error message being generated, activation of the equipment is continued, and if the equipment is finally activated before a predetermined maximum period for deployment of the thrust reverser, then deployment of the thrust reverser is continued and the error message relating to the malfunction of the thrust reverser is withdrawn.Type: GrantFiled: December 6, 2013Date of Patent: October 11, 2016Assignee: SNECMAInventor: Sébastien Chalaud
-
Publication number: 20160201919Abstract: A system of injecting fuel into the combustion chamber of an engine, including at least two fuel circuits, one permanent flow circuit and one intermittent flow circuit, fuel proportioning and distribution devices for proportioning fuel and distributing fuel between the two circuits and a controller. When an order to fill circuits with fuel after the circuit with intermittent flow has been drained is received, the controller is adapted to control the proportioning and distribution devices to obtain a predetermined fuel flow higher than the flow corresponding to the filling order and to supply the resulting surplus of fuel to the intermittent flow circuit for a predetermined duration.Type: ApplicationFiled: August 20, 2014Publication date: July 14, 2016Applicant: SNECMAInventor: Sebastien CHALAUD
-
Publication number: 20160195020Abstract: The invention concerns a fuel system (1) for a turbomachine comprising: —a control circuit (9a), —a main circuit (9b), —a flow rate regulator (2), suitable for regulating the flow of fuel in the control circuit (9a) and in the main circuit (9b) depending on the speed of the turbomachine, and —a drain tank (4) being designed to draw fuel from, store fuel in and drain fuel into the main circuit (9b) on the basis of the pressure difference between the main circuit (9b) and the tank (5) or the high-pressure pump (6) to which it is connected.Type: ApplicationFiled: September 1, 2014Publication date: July 7, 2016Applicants: SNECMA, SNECMAInventors: Clement Bernard, Loic Pora, Sebastien Chalaud
-
Publication number: 20150361920Abstract: A method of controlling a thrust reverser made up of a plurality of pieces of equipment, wherein, in the event of it being detected that one of the pieces of equipment has not activated by the end of a predetermined activation period, an error message relating to the malfunction of the thrust reverser is generated, and in spite of the error message being generated, activation of the equipment is continued, and if the equipment is finally activated before a predetermined maximum period for deployment of the thrust reverser, then deployment of the thrust reverser is continued and the error message relating to the malfunction of the thrust reverser is withdrawn.Type: ApplicationFiled: December 6, 2013Publication date: December 17, 2015Applicant: SNECMAInventor: Sébastien CHALAUD
-
Publication number: 20150337734Abstract: The system for supplying fluid to a turbine machine comprises a low pressure pumping unit designed to increase the pressure in the fluid flowing towards the downstream circuit. The downstream circuit is subdivided at an inlet node into an injection system supply circuit and a variable geometries supply circuit. The variable geometries supply circuit is configured to carry fluid towards variable geometries from the inlet node to an outlet node connecting the variable geometries supply circuit to the upstream circuit. The injection system supply circuit comprises a high pressure volumetric pump and a pressure loss regulator configured to regulate pressure losses in the injection system supply circuit.Type: ApplicationFiled: May 20, 2015Publication date: November 26, 2015Inventor: Sébastien Chalaud