Patents Assigned to Hispano-Suiza
  • ELECTRIC BRAKE SYSTEM WITH MAGNETIC LOSS
    Publication number: 20110254475
    Abstract: An electric brake system for an electromechanical machine connected to output terminals of an inverter, input terminals of which are supplied by a DC voltage source. The system includes an electrical circuit connected between the input terminals of the inverter and including, connected in series: a mechanism dissipating electrical energy returned by the electromechanical machine to the input terminals of the inverter during a braking phase of the electromechanical machine, including an inductor wound around a magnetic circuit; and a switching mechanism to close the electrical circuit during a braking phase of the electromechanical machine and to open the electrical circuit in absence of a braking phase of the electromechanical machine.
    Type: Application
    Filed: November 12, 2009
    Publication date: October 20, 2011
    Applicant: HISPANO SUIZA
    Inventor: Eric De Wergifosse
  • ELECTRONIC POWER MODULE FOR AN AIRCRAFT ACTUATOR
    Publication number: 20110215194
    Abstract: An electronic power module, in particular an all-electric actuator for an aircraft, comprising a support having electronic components mounted thereon together with a package covering and surrounding the components and fastened on the support, the package having walls fastened on corresponding faces of an intermediate part that is fastened to the support inside the package.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 8, 2011
    Applicant: HISPANO SUIZA
    Inventors: Mathieu CHARLAS, Jean-Pierre HABAS, Valérie NASSIET
  • Integration of a starter/generator module in a gas turbine transmission housing
    Patent number: 8013488
    Abstract: A starter/generator mechanically coupled to a gas turbine transmission housing is disclosed. The starter/generator includes a generator with a rotor forming a field winding and a stator forming an armature, and an energizer with a stator forming a field winding and a rotor forming an armature connected to the generator field winding. The generator rotor and the energizer rotor are mounted on a common shaft with a transmission housing gear wheel, on either side of the gear wheel.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: September 6, 2011
    Assignee: Hispano-Suiza
    Inventors: Serge Berenger, Paul Jean-baptiste Kremer, Samuel Raymond Germain Becquerelle, Alain Vassaux, Denis Jean Noel Vercherin
  • TURBO-MACHINE CONTROL INSTALLATION EQUIPPED WITH A PASSIVE RADIOFREQUENCY IDENTIFICATION CHIP UNIT VERIFICATION SYSTEM
    Publication number: 20110169640
    Abstract: This invention relates to a control installation (1) of a turbo-machine, comprising: a regulation device (2), a unit (4) located remotely from the device (2) by which it is controlled, a verification system (6) of the unit, comprising: an emitting/receiving antenna (8) connected to the device (2), a passive radiofrequency identification chip (12) mounted on the unit and incorporating information concerning this unit, wherein the chip (12) is designed to emit to the antenna (8) a radiofrequency signal comprising the information, in response to a radiofrequency signal sent by the antenna (8) to verify the unit, The installation is such that the antenna (8) is mounted on the unit (4).
    Type: Application
    Filed: February 7, 2008
    Publication date: July 14, 2011
    Applicant: HISPANO SUIZA
    Inventors: Olivier Marie HENRIOT, Laurent Gilbert Yves Hodinot, Bertrand Lacombe, Marc Raes
  • Gas turbine engine comprising a starter in the auxiliary gear box
    Patent number: 7971423
    Abstract: A gas turbine engine incorporating a starter mounted on the gear box is disclosed. The gas turbine engine includes an AGB gear housing mechanically connected with an engine shaft for driving auxiliary machines and an air starter mounted on the housing, the starter and housing enclosures being in communication such that the lubricating oil of the starter should be distributed from the AGB housing. The oil enclosure of the starter is pressurized by a source of air, being independent from the AGB housing. Advantageously, the pressurization air is taken from a pressurization enclosure of an engine bearing.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: July 5, 2011
    Assignee: Hispano Suiza
    Inventors: Chloe Avila, Jean-Louis Charbonnel, Marie-Lise Dardenne, Corinne Follonier, Pierre Charles Mouton
  • Aircraft Engine Fuel Supply
    Publication number: 20110139123
    Abstract: A centrifugal pump driven by mechanical coupling with an engine has a low pressure inlet receiving fuel from a fuel circuit of an aircraft, a high pressure outlet connected to a regulator circuit for regulating the flow rate of fuel supplied to the engine, and an assistance pump unit that is electrically controlled, having an inlet connected to the aircraft fuel circuit and an outlet connected to the flow rate regulator circuit so as to deliver, via its outlet, fuel that is at a predetermined minimum pressure, the pressure of the fuel supplied to the regulator circuit being the higher of the pressures delivered by the centrifugal pump and the assistance pump unit.
    Type: Application
    Filed: February 17, 2006
    Publication date: June 16, 2011
    Applicant: HISPANO SUIZA
    Inventors: Jean-Marie Brocard, Regis Deldalle, Philippe Galozio, Michel Martini, Alain Varizat
  • Heat bridge between accessory casing and airplane engine accessory box
    Patent number: 7960879
    Abstract: An airplane engine accessory box carrying an electrical machine such as an alternator, having a rotor that is guided in rotation in a bearing carried by a support part made of a material having a low coefficient of thermal expansion, itself carried by a stator cover that acts as a heat bridge between the body of the stator of the electrical machine and the casing of the accessory box.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: June 14, 2011
    Assignee: Hispano Suiza
    Inventors: Vincent Abousleiman, Hugues Henri Raymond Linet
  • Fuel feed circuit for an aircraft engine
    Patent number: 7950232
    Abstract: A head loss element is interposed between the outlet from the pump delivering high pressure fuel and the pipe feeding combustion chamber injectors. A servo-valve for feeding a hydraulic actuator of a variable-geometry component of the engine has an HP admission inlet connected to the outlet from the pump upstream from the head loss element and an LP outlet connected to the feed pipe downstream from the head loss element. Thus, the flow rate taken upstream from the head loss element for driving the actuator is compensated by the flow rate reinjected downstream from the head loss element, thereby avoiding any movement of the variable-geometry component giving rise to a disturbance in the flow rate delivered to the injectors.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: May 31, 2011
    Assignee: Hispano Suiza
    Inventors: Philippe Galozio, Cédric Montarou, Denis Morin
  • ELECTRONIC CONTROL MODULE FOR A JFET TRANSISTOR
    Publication number: 20110121891
    Abstract: An electronic control module for a field effect transistor includes a gate, a drain and a source. The electronic control module includes: a control circuit including: a power supply able to provide a fixed potential to the gate of the field effect transistor; and an amplifier stage able to vary the potential of the source of the field effect transistor with relation to the potential of the gate of the field effect transistor; and a field effect transistor whose gate is connected to the fixed potential; and source is connected to the amplifier stage.
    Type: Application
    Filed: August 30, 2010
    Publication date: May 26, 2011
    Applicant: HISPANO SUIZA
    Inventors: Julien RAMBAUD, Sebastien Vieillard
  • Electrical power supply circuit in an aircraft for electrical equipment including a de-icing circuit
    Patent number: 7936082
    Abstract: An electrical power supply circuit in an aircraft is disclosed. The circuit includes an electricity distribution network on board the aircraft for powering electrical equipment situated in an engine of the aircraft or in the surroundings of the engine, and a power supply generator integrated in the engine of the aircraft for powering a de-icing circuit. The electrical equipment includes nacelle loads connected to a DC voltage distribution bus which is connected to a voltage converter circuit powered by the distribution network. The de-icing circuit includes at least one electrical resistance for dissipating electricity returned to the DC voltage distribution bus by at least some of the nacelle loads.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: May 3, 2011
    Assignee: Hispano Suiza
    Inventors: Rachid Boudyaf, Antoine Jean-Baptiste Stutz
  • Assistance and emergency backup for the electrical drive of a fuel pump in a turbine engine
    Patent number: 7895819
    Abstract: A system for driving a fuel pump in a turbine engine is disclosed. The system includes an electric motor and a fluid flow assistance unit controlled by a control valve. In the system, the control valve is a regulator valve the opening of which is controlled as a function of information representative of the speed of the pump, and/or the speed of the turbine engine, and/or the flow rate of fuel delivered to the turbine engine. As a result, operating safety of the turbine engine can be increased in the event of the electric motor failing or of its electricity generator failing, and the weight/size/cost ratios of the drive system are improved.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: March 1, 2011
    Assignee: Hispano Suiza
    Inventor: Regis Michel Paul Deldalle
  • DEVICE FOR SUPPORTING AND SECURING A PIECE OF EQUIPMENT ON AN AIRCRAFT ENGINE OR NACELLE CASE
    Publication number: 20110002782
    Abstract: A device for supporting and securing a piece of equipment on an aircraft engine or nacelle case, including a vibration damper including a first part secured to the case and a second coaxial part rigidly connected to the piece of equipment, the damper associated with a safety member configured to hold the damper in place on the case in the event of damper failure or breakage. The safety member, which is independent of the damper, is mounted astride the damper and secured to the case.
    Type: Application
    Filed: February 28, 2009
    Publication date: January 6, 2011
    Applicant: Hispano - Suiza
    Inventors: Brice Boucher, Jean-Marc Cosquer, Alain Guerber, Jacques Russmann
  • Turbomachine with integral generator/starter
    Patent number: 7855483
    Abstract: A turbomachine such as an aircraft turbojet including an electrical generator/starter that can be mounted and dismounted by axial translation in an upstream enclosure of the turbomachine between the low-pressure compressor and the high-pressure compressor, and couple to electrical cables which extend inside the structural arms of the intermediate casing of the turbomachine.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: December 21, 2010
    Assignees: Snecma, Hispano-Suiza
    Inventors: Philippe Pierre Vincent Bouiller, Anthony Lorand, Stephane Rousselin
  • Method for monitoring plane engines
    Patent number: 7840320
    Abstract: A method for monitoring engines of a plane, including at least two engines, each engine being controlled and monitored by an engine monitoring calculator, the calculators being connected to each other by a communication network and each calculator monitoring operating parameters of one engine. The method being characterized in that both calculators output on the network the value of at least one of the parameters for comparison with the same parameter outputted by the other calculator, and if a value of one calculator deviates from a value of the other calculator by a difference higher than a predetermined threshold, one of the engines is diagnosed as operating abnormally.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: November 23, 2010
    Assignee: Hispano Suiza
    Inventors: Alexandre Ausloos, Jonathan Benitah, Olivier Armand Joseph Maka, Jean-Remi Masse
  • ELECTRICAL POWER SUPPLY CIRCUIT IN AN AIRCRAFT FOR ELECTRICAL EQUIPMENT INCLUDING A DE-ICING CIRCUIT
    Publication number: 20100283319
    Abstract: The invention relates to an electrical power supply circuit in an aircraft, the circuit comprising an electricity distribution network 17 on board the aircraft for powering electrical equipment 5b situated in an engine of the aircraft or in the surroundings of said engine and a power supply generator 27 integrated in the engine of the aircraft for powering a de-icing circuit 5a. The electrical equipment comprises nacelle loads (5b) connected to a DC voltage distribution bus (35), itself being connected to a voltage converter circuit (34) powered by the distribution network (17). The de-icing circuit (5a) comprises at least one electrical resistance (61) for dissipating electricity possibly returned to the DC voltage distribution bus (35) by at least some of the nacelle loads.
    Type: Application
    Filed: January 30, 2008
    Publication date: November 11, 2010
    Applicant: HISPANO SUIZA
    Inventors: Rachid Boudyaf, Antoine Jean-Baptiste Stutz
  • Gear with integral overcouple protection
    Patent number: 7823474
    Abstract: A gear including a pinion being integral with a rotatably mounted shaft in a support by a cleavable element arranged to disengage the pinion from the shaft in case of an overcouple between the pinion and the shaft is disclosed. A guiding bearing, pending between the pinion and the shaft, is arranged to rotatably guide the pinion around the shaft, in case of a disengagement of the pinion from the shaft. In a turbomachine, a gear box including such a gear allows the driving of auxiliary machines in case of a breakdown of a shaft in the gear box.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: November 2, 2010
    Assignee: Hispano Suiza
    Inventors: Alain Vassaux, Khalid Belhaj
  • Gear with integral overcouple protection
    Patent number: 7819038
    Abstract: A gear including a pinion, a shaft and a disc is disclosed. The disc includes a cleavable element arranged to disengage the pinion from the shaft in case of an overcouple between the pinion and the shaft. A guiding module of the pinion is arranged to maintain the pinion in rotation in the support in case of a disengagement of the pinion from the shaft. In a turbo-machine, a gear box including such a gear allows the driving of auxiliary machines in case of a breakdown of a shaft in the gear box.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: October 26, 2010
    Assignee: Hispano Suiza
    Inventor: Alain Vassaux
  • Electric connector assembly having a device for protection against pollution
    Patent number: 7758360
    Abstract: An electric connector assembly includes a plug having primary contacts and a base having secondary contacts capable of interacting with the primary contacts. The connector assembly also includes a closure flap fixed to the base and capable of pivoting between a closed position in which it closes off an axis to the secondary contacts and an open position in which it frees an access to the secondary contacts to make it possible to connect the plug to the base, and an annular sleeve fixed to an electric cable connected to the plug and capable of being moved between two extreme positions, a bottom position in which it covers the closure flap when the plug and the base are connected and a top position in which it frees an access to the plug.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: July 20, 2010
    Assignee: Hispano Suiza
    Inventors: Yves Lucien Tranquille Lesage, Anthony Lorand, Christian Henry Mazelle
  • Device for the offtake of mechanical power between the HP and LP shafts of a double-shaft turbine engine
    Patent number: 7758302
    Abstract: A device for driving auxiliary machines of a double-shaft turbine engine with an LP shaft and an HP shaft is disclosed. The machines are installed in an accessory gearbox which includes a common drive shaft. The device includes a differential gear with a first input shaft and a second input shaft and an output shaft. The first shaft being connected via a selective coupling either to the LP shaft or to the HP shaft, the second input shaft is connected to the HP shaft, and the output shaft being connected to the drive shaft of the gearbox.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: July 20, 2010
    Assignee: Hispano-Suiza
    Inventors: Hugues Henri Raymond Linet, Cyril Franck Mouchnino, Serge Dominique Pettinotti
  • Checking the robustness of a model of a physical system
    Patent number: 7743351
    Abstract: The invention provides a system and a method for verifying the robustness of a model of a physical system, the method comprising the following steps: defining a first model of the physical system comprising a set of components and at least one input interface for inserting input values, said first model being defined in a formal language describing the behavior and the function of each of said components; defining in the formal language a determined property that must be satisfied by the model of the physical system; defining in the formal language a second model corresponding to the first model and enriched by a fault injection mechanism; and using formal proof means to search automatically for a combination of injected faults and/or input values that causes said determined property to fail.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: June 22, 2010
    Assignee: Hispano Suiza
    Inventors: Hugues Granier, Christian Bregaint, Philippe Tonnelier, Marc Croix Marie