Patents Assigned to Ecole Centrale de Lyon
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Patent number: 10584991Abstract: An apparatus for ultrasonically measuring the flow rate of a fluid in a measuring channel including fluid supply passages at its ends, this measuring channel forming a waveguide made into a solid body, comprising at each end a transducer capable of emitting or receiving ultrasounds circulating in the axis of the channel, where each transducer includes a shell transmitting the ultrasounds, comprising a waveguide facing the measuring channel, and outside this waveguide shapes orientating the ultrasounds in directions different from that of the channel.Type: GrantFiled: April 10, 2018Date of Patent: March 10, 2020Assignees: EFS SA, ECOLE CENTRALE DE LYON, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE CLAUDE BERNARD LYON 1, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYONInventors: Julian Robin, Pascal Gucher, Alexandre Huchon, Sébastien Ollivier, Philippe Blanc-Benon
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Patent number: 10480972Abstract: A control method for an apparatus for ultrasonically measuring the flow rate of a fluid in a measuring channel, including a measuring channel whose one end is equipped with a first transducer and the other end is equipped with a second transducer, each transducer emitting ultrasonic waves to the other transducer, and receiving waves generated by the other transducer, where, in a first step, the first transducer emits waves to the second transducer, and in a second step, which can be simultaneous with the first one, the second transducer emits waves prior to the reception of the waves emitted by the first transducer.Type: GrantFiled: April 10, 2018Date of Patent: November 19, 2019Assignees: EFS SA, ECOLE CENTRALE DE LYON, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE CLAUDE BERNARD LYON 1, INSTITUT NATIONAL des SCIENCES APPLIQUEES DE LYONInventors: Julian Robin, Pascal Gucher, Alexandre Huchon, Sébastien Ollivier, Philippe Blanc-Benon
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Patent number: 10401161Abstract: The present invention relates to a method for dimensioning a turbomachine comprising a casing and a disc to which at least one blade is secured, said disc being rotationally driven by a shaft about a turbomachine axis (z), comprising: —acquisition (E1) of the coordinates (P) of the ends of the leading edge and of the trailing edge of the blade in a frame of reference connected with the disc; —expression (E2) of the coordinates (P?) of the ends of the leading edge and of the trailing edge of the blade in a frame of reference connected with the casing; —calculation (E3) of the distance (g) between the casing and the ends of the leading edge and trailing edge of the blade from the coordinates (P?) expressed in the frame of reference connected with the casing; —calculation (E4) of the contact pressures between the blade and the casing along the end of the blade from the calculated distance (g); —calculation (E5) of the reaction forces and moments resulting from contact between the blade and the casing from the caType: GrantFiled: June 3, 2015Date of Patent: September 3, 2019Assignees: SAFRAN AIRCRAFT ENGINES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), ECOLE CENTRALE DE LYON, ECOLE NATIONALE D'INGENIEURS DE SAINT ETIENNEInventors: Marie-Oceane Parent, Fabrice Joel Luc Chevillot, Fabrice Hugues Jean Pierre Thouverez
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Publication number: 20190257962Abstract: The invention relates to a method for characterising the quality of an X-ray beam having a known profile for depositing a dose in a body, having an zone (Za1, Za2) of increasing dose rate inside said body extending between the input surface of the beam and a characteristic depth (Pmax) where the deposited dose is at a maximum, the method comprising the following steps: —providing a monolithic detector including in p-n junctions (m>3) stacked depth-wise in the detector with at least three junctions distributed in the zone of increasing dose rate; —projecting said X-ray beam onto the monolithic detector; —recovering the m signals (r) delivered by the p-n junctions of the detector; —and processing the m signals (r) in order to characterise the quality of the X-ray beam.Type: ApplicationFiled: June 16, 2017Publication date: August 22, 2019Applicants: Universite Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquees de Lyon, Ecole Centrale De LyonInventors: Guo-Neng Lu, Patrick Pittet, Ruoxi Wang
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Patent number: 10264954Abstract: The invention relates to an imaging device (E) comprising: at least one generator (1) of structured light; an emission first image guide (5, 5?) for uplinking the structured light from the generator (1) to an object to be observed; and a return second image guide (5?, 5) for downlinking the light reflected by said object to be observed to a system (2) for capturing said reflected light. Each of the two image guides (5, 5?) is able to uplink the structured light and downlink the reflected light, and the imaging device comprises an optical switch (3) configurable into three different operating modes.Type: GrantFiled: December 17, 2014Date of Patent: April 23, 2019Assignees: UNIVERSITE TECHNOLOGIE DE COMPIEGNE—UTC, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON, ECOLE CENTRALE DE LYON, UNIVERSITE CLAUDE BERNARD LYON 1Inventors: Frederic Lamarque, Erwan Dupont, Christine Prelle, Laurent Petit, Tanneguy Redarce
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Patent number: 10126261Abstract: A method to determine an electronic signature characteristic of a fluid medium comprises making a reception surface for receiving the fluid medium on at least one face of the substrate, putting the fluid medium into contact with the reception surface in order to make an interface between the substrate and the fluid medium, lighting at least one zone of the interface through the fluid medium with a pulsed light beam in order to create photogenerated electric charges, using a microwave reflectometer to measure the lifetime durations of the photogenerated electric charges, which durations have respective values that depend on the recombination rate at the interface between the substrate and the fluid medium, creating a matrix of measured lifetime duration values for the photogenerated electric charges, and using the matrix to determine the electronic signature characteristic of the fluid medium.Type: GrantFiled: December 17, 2013Date of Patent: November 13, 2018Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE CENTRALE DE LYON, INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON, UNIVERSITE CLAUDE BERNARD LYON I, UNIVERSITE T. CHEVTCHENKO DE KIEVInventors: Sergeii Lytvynenko, Sergei Alexandrovich Alekseyev, Volodymyr Lysenko, Valeriy Skryshevskyy
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Patent number: 9819198Abstract: This invention relates to an electronic system including a radiative electromagnetic emitter for emitting an activation signal including sequentially an energy supply signal followed by an identification signal, the power of the energy supply signal being at least ten times greater than the power of the identification signal, further including an interface connected to an energy supply source; an electric load; a circuit for deactivating a placing of electric load on standby, including: a receiver including a reception interface, a rectifier configured to generate a DC activation voltage on the basis of an activation signal, a switch configured to selectively connect/disconnect to the load from the energy supply, an identification circuit configured to extract an identifier of the activation signal and configured to apply the activation voltage as closure control signal for turning off the switch if a match of the identifier is determined.Type: GrantFiled: March 7, 2013Date of Patent: November 14, 2017Assignees: Ecole Centrale De Lyon, Universite Lyon 1 Claude Bernard, Institut National Des Sciences Appiquees De Lyon, University De Limoges, Centre National De La RecherchInventors: Christian Vollaire, Marc Thevenot, Vlad Marian, Cyrille Menudier
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Patent number: 9726598Abstract: A device for characterizing a fluid medium with the help of a photoelectric transducer comprises at least one semiconductor substrate possessing at least one space charge zone and presenting a reception surface for receiving the fluid medium in order to constitute an interface between the substrate and the fluid medium, a production system for producing a spot light beam that is amplitude-modulated and that lights at least one zone of the interface through the fluid medium, a measurement system for measuring values of a photoelectric magnitude delivered while performing the lighting so as to create a matrix of values of the photoelectric magnitude, and a processor system for processing values of the photoelectric magnitude delivered by the measurement system and adapted to use the matrix to determine an electronic signature characteristic of the fluid medium.Type: GrantFiled: December 17, 2013Date of Patent: August 8, 2017Assignees: Centre National de la Recherche Scientifique, Ecole Centrale de Lyon, Institut National des Sciences Appliquees de Lyon, Universite Claude Bernard Lyon I, Universite T. Chevtchenko de KievInventors: Sergeii Lytvynenko, Dmytro Beilobrov, Volodymyr Lysenko, Valeriy Skryshevskyy
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Patent number: 9673471Abstract: A method for the production of a biofilm at the surface of an electrode in a liquid medium containing bacteria and a substrate for growth of the bacteria, in which a system of electrodes constituted of two electrodes, which are connected to a direct electric current source, is used, these two electrodes are placed in the medium and a predetermined and constant potential difference is applied between the electrodes, by virtue of which biofilms form at the surface of the electrodes. Resulting electrodes and biocells.Type: GrantFiled: May 27, 2009Date of Patent: June 6, 2017Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), UNIVERSITE CLAUDE BERNARD LYON 1, ECOLE CENTRALE DE LYONInventors: Timothy Vogel, Jean-Michel Monier, Naoufel Haddour
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Patent number: 9649951Abstract: An automotive vehicle drive unit, comprising a fuel cell whose control input is a setpoint of the electrical power to be delivered by the fuel cell. There is a reversible electrical energy storage system and an electric motor to propel the wheels of a vehicle. An electrical connection element selectively connects the fuel cell and/or the energy storage system to the electric motor. A control circuit stores a model of the consumption of dihydrogen as a function of the power delivered by this fuel cell, in the form of a second-degree polynomial and is configured to compute a coefficient of power distribution ?1 between the fuel cell and the electrical energy storage system pursuant to a defined equation. The control circuit controls the electrical connection element to recharge the energy storage system when the value of the power setpoint Pfc* is greater than the power demanded by the electric motor.Type: GrantFiled: July 11, 2013Date of Patent: May 16, 2017Assignees: Commissariat à l'énergie atomique et aux énergies alternatives, Institut National des Sciences Appliquées de Lyon, Centre National de la Recherche Scientifique, Université Lyon 1 Claude Bernard, Ecole Centrale De Lyon, Institut Français des Sciences et Technologies des Transports RéseauxInventors: Mathias Gerard, Eric Bideaux, Ramon Da Fonseca, Matthieu Desbois-Renaudin, Bruno Jeanneret
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Publication number: 20160316999Abstract: The invention relates to an imaging device (E) comprising: at least one generator (1) of structured light; an emission first image guide (5, 5?) for uplinking the structured light from the generator (1) to an object to be observed; and a return second image guide (5?, 5) for downlinking the light reflected by said object to be observed to a system (2) for capturing said reflected light. Each of the two image guides (5, 5?) is able to uplink the structured light and downlink the reflected light, and the imaging device comprises an optical switch (3) configurable into three different operating modes.Type: ApplicationFiled: December 17, 2014Publication date: November 3, 2016Applicants: Universite Technologie de Compiegne-UTC, Centre National de la Recherche Scientifique (CNRS), Institut National de Sciences Appliquees de Lyon, Ecole Centrale de Lyon, Universite Claude Bernard Lyon 1Inventors: Frederic LAMARQUE, Erwan DUPONT, Christine PRELLE, Laurent PETIT, Tanneguy REDARCE
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Publication number: 20160312144Abstract: A lubricant composition includes at least one base oil, at least one organomolybdenum compound, at least one compound including a dithiophosphate group and at least one fatty triamine. The lubricant composition has good friction properties for both steel/steel contacts and steel/carbon coating contacts, as well as for carbon coating/carbon coating contacts, whilst retaining good anti-wear properties.Type: ApplicationFiled: December 16, 2014Publication date: October 27, 2016Applicants: TOTAL MARKETING SERVICES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), ECOLE CENTRALE DE LYONInventors: Maria Isabel DE BARROS BOUCHET, Olga GORBATCHEV, Raphaele IOVINE, Carine PIZARD
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Patent number: 9356113Abstract: The invention concerns a method for producing a field effect transistor having a trench gate comprising: —the forming (110) of at least one trench (11, 12, 13) in a semi-conductive substrate (1) having a first type of conductivity, said substrate comprising two opposing faces called front face and rear face, —the primary implantation (120) of ions having a second type of conductivity so as to implant each trench of the substrate to form an active gate area, —the depositing (160) of a layer of polycrystalline silicon having the second type of conductivity on the implanted active gate area, —the oxidation (160) of the layer of polycrystalline silicon, and —the metallization (180) of the substrate on the front and rear faces of same in order to form active source and drain areas.Type: GrantFiled: September 5, 2012Date of Patent: May 31, 2016Assignees: Institut National des Sciences Appliquees de Lyon, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS), Ecole Centrale De Lyon, Consejo Superior De Investigaciones Cienti{acute over (f)}icas (CSIC)Inventors: Dominique Tournier, Florian Chevalier, Philippe Godignon, José Millan
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Publication number: 20150349084Abstract: The invention concerns a method for producing a field effect transistor having a trench gate comprising:—the forming (110) of at least one trench (11, 12, 13) in a semi-conductive substrate (1) having a first type of conductivity, said substrate comprising two opposing faces called front face and rear face,—the primary implantation (120) of ions having a second type of conducitivity so as to implant each trench of the substrate to form an active gate area,—the depositing (160) of a layer of polycrystalline silicon having the second type of conductivity on the implanted active gate area,—the oxidation (160) of the layer of polycrystalline silicon, and—the metallisation (180) of the substrate on the front and rear faces of same in order to form active source and drain areas.Type: ApplicationFiled: September 5, 2012Publication date: December 3, 2015Applicants: Institut National des Sciences Appliquees de Lyon, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS, Ecole Centrale De Lyon, Consejo Superior De Investigaciones Cientificas (CSIC)Inventors: Dominique TOURNIER, Florian CHEVALIER, Philippe GODIGNON, José MILLAN
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Patent number: 8994109Abstract: A method for preparing a multilayer substrate includes the step of deposing an epitaxial ?-Al2O3 Miller index (001) layer on a Si Miller index (001) substrate.Type: GrantFiled: March 15, 2013Date of Patent: March 31, 2015Assignees: STMicroelectronics SA, Centre National de la Recherche Scientifique, Ecole Centrale de LyonInventors: Clement Merckling, Mario El-Kazzi, Guillaume Saint-Girons, Guy Hollinger
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Publication number: 20150069850Abstract: This invention relates to an electronic system including a radiative electromagnetic emitter for emitting an activation signal including sequentially an energy supply signal followed by an identification signal, the power of the energy supply signal being at least ten times greater than the power of the identification signal, further including an interface connected to an energy supply source; an electric load; a circuit for deactivating a placing of electric load on standby, including: a receiver including a reception interface, a rectifier configured to generate a DC activation voltage on the basis of an activation signal, a switch configured to selectively connect/disconnect to the load from the energy supply, an identification circuit configured to extract an identifier of the activation signal and configured to apply the activation voltage as closure control signal for turning off the switch if a match of the identifier is determined.Type: ApplicationFiled: March 7, 2013Publication date: March 12, 2015Applicants: Ecole Centrale de Lyon, Université Lyon 1 Claude Bernard, Centre National De La Recherch Scientifique, University De Limoges, Institut National Des Sciences Appliquees De LyonInventors: Christian Vollaire, Marc Thevenot, Vlad Marian, Cyrille Menudier
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Patent number: 8833256Abstract: This pad microprinting device comprises: a multi-level pad (34) wherein the printing pattern is made out of elastomeric material for which the Young's modulus is between 0.1 and 100 MPa, and a stop mechanism (62-64) capable of keeping an incompressible space of a thickness Dn between the nth flat bottom (122B) and the face of the substrate (32) on which an imprint has to be printed, when the pad is compressed against the face of the substrate to print off the imprint, the thickness Dn being between hn/2 and hn+100 nm where hn is the height of the protrusions of the printing pattern.Type: GrantFiled: October 13, 2008Date of Patent: September 16, 2014Assignees: Ecole Centrale de Lyon, Centre National de la Recherche ScientifiqueInventors: Michel Cabrera, Elie Bou Chakra
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Patent number: 8742789Abstract: An interconnected array of reconfigurable logic cells which carry out at least one logic function, externally connected to peripheral connection network equipped with switch boxes and connected to programmable input/output blocks. The logic cells are distributed in a first dimension in rows i with i=1 to d and a second dimension in columns j with j=1 to w, with d?2 and w=2 or d=2 and w?2, each logic cell including a second input, a second input, a first output and a second output, the first input of each logic cell and the first output of each logic cell being connected to the connection network, the second input and the second output of each logic cell being connected to other different column and row logic cells except for the first and last rows or columns for d>2 or w>2 respectively.Type: GrantFiled: December 14, 2010Date of Patent: June 3, 2014Assignees: Ecole Centrale de Lyon, Universite Claude Bernard, Centre National de la Recherche Scientfique, Institut National des Sciences Appliquees de LyonInventors: Ian O'Connor, Nataliya Yakimets
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Patent number: 8715468Abstract: The invention relates to a machine for machining a part by micro-electrical discharge machining, said machine comprising a mechanism (44, 45, 46, 48) for modifying the configuration of the machine so as to alternatively and reversibly switch from a machining configuration to a sharpening configuration in which the tip of a same etching electrode (20) and another electrode (64) are dipped in an electrolyte bath in order to sharpen the tip of the etching electrode by electrochemnical corrosion.Type: GrantFiled: September 9, 2009Date of Patent: May 6, 2014Assignees: Universite de Lyon I Claude Bernard, Centre National de la Recherche, Ecole Centrale de LyonInventor: Michel Cabrera
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Publication number: 20130291658Abstract: The present invention relates to a device for characterizing mechanical properties of a material (S) with a low modulus of elasticity, comprising an application surface (3) and a mechanical stressing mechanism (5), said mechanical stressing mechanism comprising: a mobile indenter (6) that can move at least in vertical translation so as to bear substantially normally on said material and on said application surface (3), at least one means (14) for translating said indenter along a vertical axis Z-Z? from a reference position in which the indenter is not in contact with the material (S) and at least one sensor (11) for measuring the load applied by the indenter on the material (S) along a direction normal to the application surface on the material, and at least one position sensor (20) able to determine the vertical position of said indenter (6) with respect to said reference position.Type: ApplicationFiled: November 8, 2011Publication date: November 7, 2013Applicants: ECOLE CENTRALE DE LYON, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE CLAUDE BERNARD LYON I, ECOLE NATIONALE D'INGENIEURS DE SAINT- ETIENNEInventors: Cyril Pailler-Mattei, Roberto Vargiolu, Hassan Zahouani