Patents Assigned to Messier
  • Architecture for a hydraulic system for operating aircraft landing gear
    Patent number: 8028954
    Abstract: The invention relates to an architecture for a hydraulic system for operating the landing gear of an aircraft including at least one pressure source and at least one hydraulic return, the system having a hydraulic circuit comprising a first hydraulic line that, when pressurized, causes the landing gear to be lowered, and a second hydraulic line that, when pressurized, causes the landing gear to be raised, said lines being selectively pressurized by means of a hydraulic distribution member comprising at least an isolation valve and a selector for putting one of the lines into communication with pressure and the other line into communication with return.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: October 4, 2011
    Assignee: Messier-Bugatti
    Inventors: David Leutard, Eric Felemez, Sebastien Fremiot
  • MULTIFUNCTIONAL ELECTROMECHANICAL DEVICE FOR LANDING GEAR
    Publication number: 20110233328
    Abstract: The invention provides a multifunction electromechanical device for an aircraft undercarriage, the device comprising at least: a first shaft (10) mounted to rotate on the aircraft about an axis of rotation (R) that is substantially parallel to a hinge axis (X) of the undercarriage relative to the aircraft; a telescopic second shaft (20) mounted to rotate on the undercarriage extending down therealong to the proximity of the wheels carried thereby; transmission means (19) for transmitting rotary motion from the first shaft to the second shaft; transmission means (21) for transmitting rotary motion from the second shaft to at least one wheel carried by the undercarriage; if the wheel is not fitted with a brake, specific brake means (30) for braking one of the shafts relative to the undercarriage; and motor means (11, 15) for causing the first shaft to rotate.
    Type: Application
    Filed: November 19, 2009
    Publication date: September 29, 2011
    Applicant: MESSIER-DOWTY SA
    Inventors: Jean-Luc Alleau, Robert Kyle Schmidt
  • DEVICE FOR CONNECTING A TIRE OF AN AIRCRAFT WHEEL TO A PNEUMATIC UNIT OF THE AIRCRAFT
    Publication number: 20110204705
    Abstract: A device for selectively connecting a tire to a pneumatic unit of an aircraft, the tire forming part of a wheel mounted to rotate on a hollow axle of the aircraft, the device comprising a stator and a rotor that is mounted to rotate relative to the stator and that includes means enabling it to be rotated by the wheel. The stator is bell-shaped and is designed to be received as a push-fit in the axle, and includes an end wall carrying a first pneumatic port for connection to the pneumatic unit via a tube running along the inside of the axle, the rotor extending substantially inside the stator.
    Type: Application
    Filed: May 4, 2011
    Publication date: August 25, 2011
    Applicant: MESSIER-BUGATTI
    Inventors: Olivier COLLET, Jean-Clair PRADIER, Bertrand MAES
  • DEVICE FOR RETRACTING AIRCRAFT LANDING GEAR
    Publication number: 20110198441
    Abstract: An aircraft undercarriage comprising a strut (1) designed to be mounted in hinged manner to a structure of the aircraft, and a bottom portion (2) carrying the wheels and movable relative to the strut, the undercarriage also including an undercarriage shortener device for shortening the undercarriage between a deployed position and a raised position, said device comprising first and second members (11, 12) coupled to each other, the first member (11) being coupled to the bottom portion (2) of the undercarriage or to an element (5) that moves together with said bottom portion during movement of said bottom portion relative to the strut, while the second member (12) is hinged to the structure of the aircraft in such a manner that while the undercarriage is being raised, the second member comes into abutment before the undercarriage reaches the raised position.
    Type: Application
    Filed: November 10, 2009
    Publication date: August 18, 2011
    Applicant: MESSIER-DOWTY SA
    Inventors: Marc Dubuisson, Marc Brune
  • Device for connecting a tire of an aircraft wheel to a pneumatic unit of the aircraft
    Patent number: 7992610
    Abstract: A device for selectively connecting a tire to a pneumatic unit of an aircraft, the tire forming part of a wheel mounted to rotate on a hollow axle of the aircraft, the device comprising a stator and a rotor that is mounted to rotate relative to the stator and that includes means enabling it to be rotated by the wheel. The stator is bell-shaped and is designed to be received as a push-fit in the axle, and includes an end wall carrying a first pneumatic port for connection to the pneumatic unit via a tube running along the inside of the axle, the rotor extending substantially inside the stator.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: August 9, 2011
    Assignee: Messier-Bugatti
    Inventors: Olivier Collet, Jean-Clair Pradier, Bertrand Maes
  • HYDRAULIC BRAKING ARCHITECTURE FOR AIRCRAFT HAVING BRAKES WITH HALF-CAVITIES
    Publication number: 20110187180
    Abstract: A hydraulic braking architecture for aircraft comprising a plurality of wheels fitted with brakes, each including two half-cavities, the architecture comprising: a first braking circuit including servovalves, each powering one or more half-cavities on separate brakes; and a second braking circuit including servovalves, each powering one or more half-cavities on separate brakes; both hydraulic circuits operating simultaneously in such a manner that on each brake, one of the half-cavities is powered by a servovalve of the first braking circuit, and the other half-cavity is powered by a servovalve of the second braking circuit, at least one of the half-cavities being powered by a servovalve that powers only said half-cavity.
    Type: Application
    Filed: February 2, 2011
    Publication date: August 4, 2011
    Applicant: MESSIER-BUGATTI
    Inventor: David FRANK
  • OVERPRESSURE AND BOTTOMING DETECTOR FOR A SHOCK-ABSORBER OR THE LIKE
    Publication number: 20110180360
    Abstract: The invention relates to an overpressure and bottoming detector for a shock-absorber or the like, the detector including a hollow body inside which a piston slides sealingly and that is designed to be subjected to a pressure via an inlet of the body that is in communication with an enclosure in which said pressure exists, the piston being retained in position against the pressure by threshold retaining means adapted to release the piston when the pressure reaches or exceeds said threshold in such a manner that the piston is pushed under the effect of the pressure towards an indication position, and wherein the piston is secured to a pin that projects from the inlet of the body so as to be capable of being pushed against the threshold retaining means.
    Type: Application
    Filed: September 1, 2009
    Publication date: July 28, 2011
    Applicant: MESSIER-DOWTY SA
    Inventors: Pascal Martin, Dominique Ducos
  • ELECTRIC ACTUATOR INCLUDING TWO CURRENT-CONTROLLED VOLTAGE INVERTERS POWERING AN ELECTRIC MACHINE, AND RECONFIGURABLE IN THE PRESENCE OF A DEFECT
    Publication number: 20110181219
    Abstract: The invention relates to an actuator including an electrical machine. The electrical actuator (100) comprising: a polyphase machine (101); at least one connection member (143) for powering the actuator from at least one network (146) delivering alternating current; and first and second buses (106, 107) connected in parallel between each connection member (143) and the machine (101) for applying frequency control thereto. Each inverter (111, 131) comprises a plurality of arms each having two controlled switches, each phase of the machine (101) being connected both to the two switches of an arm of the first inverter (111) and also to the two switches of an arm of the second inverter (131). The actuator further comprises controlled connection and disconnection means interposed between each bus (106, 107) and each connection member. The invention is applicable to actuators used in aviation.
    Type: Application
    Filed: September 23, 2009
    Publication date: July 28, 2011
    Applicants: MESSIER-BUGATTI, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL POLYTECHNIQUE DE LORRAINE - INPL
    Inventors: Pierre-Yves Liegeois, François-Noël Leynaert, Farid Meibody-Tabar, Serge Lionel Pierfederici, Babak Nahid Mobarakeh
  • Method of managing the braking of an aircraft by predicting its movements on an airport
    Patent number: 7987036
    Abstract: The invention relates to a method of managing the braking of an aircraft while taxiing on an airport, the method comprising, on the basis of characteristics for a sequence of movements of the aircraft along at least one given path to be followed by the aircraft on the airport, the step of deducing information concerning the braking to be performed so that the aircraft does indeed travel in application of said sequence of movements.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: July 26, 2011
    Assignee: Messier-Bugatti
    Inventors: Stephane Dellac, Arnaud Jacquet, Antoine Esteban
  • ACTIVE ELEMENT FOR AN ELECTROMAGNETIC MACHINE, A METHOD OF FABRICATING SUCH AN ACTIVE ELEMENT, AND AN ELECTROMAGNETIC MACHINE INCLUDING SUCH AN ACTIVE ELEMENT
    Publication number: 20110169350
    Abstract: The invention provides an active element (20) for an electromagnetic machine, the element comprising an alternating succession in a main direction (X) of portions (21) presenting a first magnetic property and of portions (22) presenting a second magnetic property, wherein the element includes a non-magnetic covering (25) that is thin relative to a thickness of the portions and that extends to cover a substantial fraction of an outside surface of the active element, the covering being secured to at least some of the portions and presenting sufficient strength to form a member for mechanically transmitting the magnetic forces to which the portions are subjected.
    Type: Application
    Filed: June 28, 2007
    Publication date: July 14, 2011
    Applicant: MESSIER-DOWTY SA.
    Inventors: Nicolas Ziegler, Daniel Matt
  • ASYMMETRICAL ELECTRIC BRAKING ARCHITECTURE FOR AIRCRAFT
    Publication number: 20110155521
    Abstract: The invention relates to an asymmetrical electric braking architecture for aircraft, comprising a certain number of electro-mechanical brake actuators (EBAs) for selectively applying a braking force on friction elements in order to slow down rotation of braked wheels, said architecture comprising: a brake control unit (BCU) for acting in normal mode to generate braking setpoint values in response to a braking order; electro-mechanical actuator controllers (EMACs), each including at least one inverter for supplying power to the EBAs in response to the braking setpoint values; at least one emergency brake power and control unit (EBPCU) including at least one inverter for supplying power to some of the EBAs in response to a braking order; and protection means for channeling power supplied by the EMACs or the EBPCU towards the actuators while preventing power from being diverted towards the architecture.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 30, 2011
    Applicant: MESSIER-BUGATTI
    Inventors: Julien THIBAULT, Emmanuel COLIN
  • CIRCULAR NEEDLING MACHINE FED WITH A FIBER SHEET BY A CONVEYOR AND A VERTICAL CHUTE
    Publication number: 20110154628
    Abstract: A circular needling machine for needling a textile structure formed from a helical fiber sheet, includes a needling table disposed beneath a feed table for feeding a helical fiber sheet for needling. The feed table includes a circular belt conveyor for receiving thereon a helical fiber sheet for needling, the conveyor being centered on a vertical axis and having a radial slot opening out under the circular conveyor to unwind continuously the fiber sheet received on the conveyor, the slot opening out under the conveyor towards a substantially straight chute that extends vertically between the conveyor and a support tray of the needling table centered on the vertical axis of the conveyor so as to take up the sheet unwound from the conveyor and bring it onto the needling table, the support tray having means for driving the fiber sheet in rotation about the vertical axis.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Applicant: MESSIER-BUGATTI
    Inventors: Delecroix Vincent, Faron Marc
  • METHOD OF MANAGING PARKING BRAKING IN A BRAKING SYSTEM FOR A VEHICLE FITTED WITH ELECTRIC BRAKES
    Publication number: 20110160975
    Abstract: The invention relates to a method of managing parking braking in a braking system for a vehicle fitted with at least one electric brake including at least one electric actuator having a pusher actuated by an electric motor for selectively applying a force against friction elements of the brake, the method comprising the steps of: establishing a series of direct adjustment tables for parking braking, corresponding to braking situations at different energy levels; when applying parking braking, selecting a direct adjustment table corresponding to a braking situation preceding the application of parking braking; and directly adjusting a parking braking force in application with the selected direct adjustment table.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 30, 2011
    Applicant: MESSIER-BUGATTI
    Inventors: Stéphane MUDRY, Frédéric RAGOT, Jean-Baptiste VANEY, Emmanuel COLIN
  • AIRCRAFT WHEEL-AND-BRAKE SET FITTED WITH A ROTARY DRIVE DEVICE
    Publication number: 20110156472
    Abstract: The invention provides an aircraft wheel-and-brake set, the wheel including a rim mounted to rotate on an axle of the aircraft about an axis of rotation, and the brake including a stack of disks extending into the rim in service, and a support carrying brake actuators facing the stack of disks in order to selectively press said disks together, wherein the support carries at least one rotary drive member for driving the wheel in rotation, which drive member is carried in such a manner that it extends outside said wheel.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 30, 2011
    Applicant: MESSIER-BUGATTI
    Inventors: Daniel Bucheton, Florent Nierlich
  • CIRCULAR NEEDLING TABLE FOR NEEDLING A TEXTILE STRUCTURE MADE FROM AN ANNULAR FIBER PREFORM
    Publication number: 20110154629
    Abstract: A circular needling table for needling a textile structure made from an annular fiber preform, the table including: a horizontal annular platen for having the annular fiber preform placed thereon; drive means for driving the fiber preform in rotation about the axis of the platen; a needling device having a needling head extending over an angular sector of the platen and driven in vertical motion relative to the platen; and guide means for guiding the fiber preform under the needling head.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 30, 2011
    Applicant: MESSIER-BUGATTI
    Inventor: Vincent DELECROIX
  • Structural Deflection and Load Measuring Device
    Publication number: 20110154907
    Abstract: The present invention provides a structural deflection and load measuring device for mounting on an axle. The device includes at least one light beam emitting device connected to the axle and able to emit at least one light beam and at least one light position sensing device connected to the axle. The sensing device is located relative to the light beam emitting device for receiving at least one light beam from the light beam emitting device thereon and is operable to calculate the position of the light beam received on its surface.
    Type: Application
    Filed: August 30, 2005
    Publication date: June 30, 2011
    Applicant: MESSIER-DOWTY, INC.
    Inventors: Robert Kyle Schmidt, Nader Abu El-samid
  • Brace-locking device for an aircraft undercarriage
    Patent number: 7967245
    Abstract: The invention relates to a wind-brace device for an aircraft undercarriage, the device comprising a hinged brace movable between a folded position and a stabilization position for stabilizing the undercarriage in the deployed position, a stabilizer member for stabilizing the brace comprising two hinged-together arms, one of the arms having one end hinged to the brace about a hinge axis, and a spring member for urging the arm of the stabilizer member towards the locked position. The spring member is connected to a lever hinged to the brace, the lever presenting a slot in which there is engaged a finger secured to the arm that is hinged to the brace.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: June 28, 2011
    Assignee: Messier-Dowty S.A.
    Inventors: Christelle Seror-Goguet, Laurent Martinez
  • Telescopic member having an overridable internal abutment
    Patent number: 7967119
    Abstract: The invention provides a telescopic member that includes a cylinder in which a rod carrying a piston is mounted to slide telescopically, the telescopic member including internal abutment mechanisms that are overridable over a predetermined force when the rod comes into abutment inside the cylinder in the shortening direction. The internal abutment mechanisms include an abutment piece extending in an open bore within the rod and projecting therefrom, the abutment piece being held to the rod via a pin.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: June 28, 2011
    Assignee: Messier-Dowty S.A.
    Inventors: Andre Lahargou, Marc Brune
  • ELECTROHYDRAULIC ACTUATOR WITH A PUMP INCORPORATED IN THE PISTON
    Publication number: 20110146262
    Abstract: The invention relates to an electrohydraulic actuator comprising a body (1) that defines a cylindrical cavity (2) in which a piston (3) slides in leaktight manner and divides an inside volume of the cavity into two chambers (A, B) of variable volume, the piston being associated with at least one rod (4) passing in leaktight manner through an end wall of the cavity, the actuator including a bidirectional pump (5) having two ports (P1, P2), each connected to one of the chambers, an electric motor (8) for selectively driving the pump in one direction or the other, the pump being placed inside the piston of the actuator so as to move together therewith.
    Type: Application
    Filed: June 12, 2009
    Publication date: June 23, 2011
    Applicant: MESSIER-DOWTY SA
    Inventor: Robert Kyle Schmidt
  • METHOD OF FABRICATING A FRICTION PART BASED ON C/C COMPOSITE MATERIAL
    Publication number: 20110139346
    Abstract: The carbon-carbon composite material is obtained by densification with a pyrolytic carbon matrix originating from a precursor in gaseous state at least in a main external phase of the matrix, and, at the end of the densification, final heat treatment is performed at a temperature lying in the range 1400° C. to 1800° C.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 16, 2011
    Applicant: MESSIER-BUGATTI
    Inventors: Jean-Marie JOUIN, Eric LHERM, Philippe TURGIS