Patents by Inventor Sébastien Gameiro
Sébastien Gameiro 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: 10208669Abstract: A method for regulating oil cooling within an oil cooling device of a turbomachine including a first heat exchanger mounted in series with a second heat exchanger, the first heat exchanger being an oil/air exchanger while the second heat exchanger is an oil/fuel exchanger, each heat exchanger having an oil inlet and an oil outlet, a bypass directly connecting the oil inlet of the first heat exchanger to the oil outlet of the first heat exchanger, and a flow regulator to regulate the flow rate of oil flowing through the bypass. Circulation of oil though the bypass is allowed by means of the flow regulator when the oil temperature is less than or equal to a predetermined temperature comprised between 70° C. and 90° C., preferably equal to about 80° C.Type: GrantFiled: February 24, 2014Date of Patent: February 19, 2019Assignee: SAFRAN AIRCRAFT ENGINESInventors: Sebastien Gameiro, Brice Andre, Guillaume Mathon Margueritte, Nicolas Potel
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Patent number: 10018519Abstract: A method for estimating the temperature of the fuel entering a turbomachine injector, the turbomachine including engine spaces and an oil/fuel exchanger upstream of the injector, the engine spaces and the oil/fuel exchanger having oil passing through them, the oil/fuel exchanger having an efficiency, the engine spaces including a high-pressure spool, the method including (a) measuring the temperature of the oil entering the engine spaces; (b) measuring the rotational speed of the high-pressure spool; (c) calculating the temperature of the fuel leaving the oil/fuel exchanger using the temperature of the oil entering the engine spaces and the rotational speed of the high-pressure spool.Type: GrantFiled: July 31, 2012Date of Patent: July 10, 2018Assignee: SNECMAInventors: Sébastien Gameiro, Caroline Frantz, Sophie Lauranne Mottet
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Patent number: 9739198Abstract: Oil and fuel circuits in a turbine engine, the circuits including a main oil/fuel heat exchanger passing flows of oil and fuel for cooling the oil, an oil/air heat exchanger mounted in the oil circuit and having a flow of cooling air passing therethrough, a bypass pipe connected between an oil inlet and outlet of the oil/air heat exchanger, a valve for controlling passage of the oil flow through the bypass pipe and the oil/air heat exchanger, and a secondary oil/fuel heat exchanger mounted in the bypass pipe.Type: GrantFiled: August 14, 2012Date of Patent: August 22, 2017Assignee: SNECMAInventors: Sebastien Gameiro, Olivier Robert Michel Delepierre-Massue
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Patent number: 9702301Abstract: A fuel circuit for an aviation turbine engine, the fuel circuit including: a main fuel line for feeding fuel to a combustion chamber of the engine and including a positive displacement pump; an auxiliary fuel line connected to the main fuel line at a junction situated downstream from the pump and serving to feed fuel to hydraulic actuators to control variable-geometry equipment of the engine, the auxiliary fuel line including electrohydraulic servo-valves upstream from each actuator; and a fuel pressure regulator valve arranged on the main fuel line downstream from the pump.Type: GrantFiled: January 4, 2012Date of Patent: July 11, 2017Assignee: SNECMAInventors: Nicolas Potel, Sebastien Gameiro
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Publication number: 20160003148Abstract: A method for regulating oil cooling within an oil cooling device of a turbomachine including a first heat exchanger mounted in series with a second heat exchanger, the first heat exchanger being an oil/air exchanger while the second heat exchanger is an oil/fuel exchanger, each heat exchanger having an oil inlet and an oil outlet, a bypass directly connecting the oil inlet of the first heat exchanger to the oil outlet of the first heat exchanger, and a flow regulator to regulate the flow rate of oil flowing through the bypass. Circulation of oil though the bypass is allowed by means of the flow regulator when the oil temperature is less than or equal to a predetermined temperature comprised between 70° C. and 90° C., preferably equal to about 80° C.Type: ApplicationFiled: February 24, 2014Publication date: January 7, 2016Applicant: SNECMAInventors: Sebastien GAMEIRO, Brice ANDRE, Guillaume MATHON MARGUERITTE, Nicolas POTEL
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Patent number: 9022056Abstract: A device includes a first hot fuel bleed, a second cold fuel bleed, a fuel pressure regulator including a fuel inlet line, a fuel outlet line and a fuel pressure set point line, the pressure of the outlet line being set by the regulator to a fixed divergence from the pressure of the set point line, a first connector to connect the first bleed to the inlet line of the regulator and the second bleed to the set point line of the regulator, when a first pressure of the first bleed is greater than or equal to a second pressure of the second bleed and to connect the first bleed to the set point line of the regulator and the second bleed to the inlet line of the regulator when the first pressure is lower than the second pressure, and a second connector.Type: GrantFiled: January 25, 2013Date of Patent: May 5, 2015Assignee: SNECMAInventors: Sébastien Gameiro, Philippe Vertenoeuil
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Publication number: 20140223917Abstract: Oil and fuel circuits in a turbine engine, the circuits including a main oil/fuel heat exchanger passing flows of oil and fuel for cooling the oil, an oil/air heat exchanger mounted in the oil circuit and having a flow of cooling air passing therethrough, a bypass pipe connected between an oil inlet and outlet of the oil/air heat exchanger, a valve for controlling passage of the oil flow through the bypass pipe and the oil/air heat exchanger, and a secondary oil/fuel heat exchanger mounted in the bypass pipe.Type: ApplicationFiled: August 14, 2012Publication date: August 14, 2014Applicant: SNECMAInventors: Sébastien Gameiro, Olivier Robert Michel Delepierre-Massue
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Publication number: 20140177670Abstract: A method for estimating the temperature of the fuel entering a turbomachine injector, the turbomachine including engine spaces and an oil/fuel exchanger upstream of the injector, the engine spaces and the oil/fuel exchanger having oil passing through them, the oil/fuel exchanger having an efficiency, the engine spaces including a high-pressure spool, the method including (a) measuring the temperature of the oil entering the engine spaces; (b) measuring the rotational speed of the high-pressure spool; (c) calculating the temperature of the fuel leaving the oil/fuel exchanger using the temperature of the oil entering the engine spaces and the rotational speed of the high-pressure spool.Type: ApplicationFiled: July 31, 2012Publication date: June 26, 2014Applicant: SNECMAInventors: Sébastien Gameiro, Caroline Frantz, Sophie Lauranne Mottet
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Publication number: 20130283811Abstract: A fuel circuit for an aviation turbine engine, the fuel circuit including: a main fuel line for feeding fuel to a combustion chamber of the engine and including a positive displacement pump; an auxiliary fuel line connected to the main fuel line at a junction situated downstream from the pump and serving to feed fuel to hydraulic actuators to control variable-geometry equipment of the engine, the auxiliary fuel line including electrohydraulic servo-valves upstream from each actuator; and a fuel pressure regulator valve arranged on the main fuel line downstream from the pump.Type: ApplicationFiled: January 4, 2012Publication date: October 31, 2013Applicant: SNECMAInventors: Nicolas Potel, Sebastien Gameiro
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Publication number: 20130192692Abstract: A device includes a first hot fuel bleed, a second cold fuel bleed, a fuel pressure regulator including a fuel inlet line, a fuel outlet line and a fuel pressure set point line, the pressure of the outlet line being set by the regulator to a fixed divergence from the pressure of the set point line, a first connector to connect the first bleed to the inlet line of the regulator and the second bleed to the set point line of the regulator, when a first pressure of the first bleed is greater than or equal to a second pressure of the second bleed and to connect the first bleed to the set point line of the regulator and the second bleed to the inlet line of the regulator when the first pressure is lower than the second pressure, and a second connector.Type: ApplicationFiled: January 25, 2013Publication date: August 1, 2013Applicant: SNECMAInventors: Sébastien Gameiro, Philippe Vertenoeuil