Patents Assigned to Messier-Bugatti-Dowty
  • Mechanical component comprising an insert made of composite
    Patent number: 9127337
    Abstract: A method of manufacturing a mechanical component, and winding device to implementing the method. The component includes at least one insert of metal matrix composite, within which matrix ceramic fibers extend, the composite insert obtained from a plurality of coated filaments each including a ceramic fiber coated with a metal sheath. The method manufactures an insert preform by winding a bonded lap or bundle of coated filaments about a cylindrical component. At least some of the winding is performed in at least one rectilinear direction. The method further inserts the insert preform in a first container; performs hot isostatic compaction of the first container; and machines the first container to form a rectilinear insert.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: September 8, 2015
    Assignees: SNECMA, MESSIER-BUGATTI-DOWTY
    Inventors: Patrick Dunleavy, Jean-Michel Patrick Maurice Franchet, Gilles Charles Casimir Klein, Richard Masson
  • FIBER REINFORCEMENT FOR MAKING AN ELONGATE MECHANICAL PART OUT OF COMPOSITE MATERIAL
    Publication number: 20150239553
    Abstract: The invention relates to fiber reinforcement for making an elongate mechanical part (10) out of composite material having a lug (14) at at least one end for receiving a pin for making a pivot connection with another part, the fiber reinforcement being made from a central fiber structure (106; 106?) for forming a core that is obtained by three-dimensional weaving, from a peripheral fiber structure (16; 16?) that is to form a belt surrounding the central structure so as to form at least one empty cylindrical space in the lug of the part, and from at least one annular fiber structure (112; 112?; 112?) that is to form a ring that is formed inside the empty space provided between the central structure and the peripheral structure.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 27, 2015
    Applicants: SNECMA, MESSIER-BUGATTI-DOWTY, SAFRAN
    Inventors: Sylvain Leclercq, Bruno Jacques Gerard Dambrine, Dominique Marie Christian Coupe
  • Electric brake for an aircraft wheel, the brake including an electromechanical actuator fitted with a temperature sensor
    Patent number: 9114791
    Abstract: An electric brake for an aircraft wheel comprising a support 4 formed by a torsion tube 5 and by an actuator-carrier 6, a stack 7 of disks mounted around the torsion tube 5, electromechanical actuators 8 carried by the actuator-carrier 6, each actuator comprising an electric motor 12 and a pusher 14, the electric motor 12 being adapted to move the pusher 14 facing the stack 7 of disks in order to apply a braking force selectively to the stack 7 of disks; and temperature measurement means for measuring a temperature representative of a temperature that exists in the stack 7 of disks. The temperature measurement means comprises at least one temperature sensor 18 arranged in the pusher 14 of one of the electromechanical actuators 8 so as to be located in the immediate proximity of the stack 7 of disks when the pusher 14 is brought into contact therewith.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: August 25, 2015
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventors: Franck Selles, Jean-Baptiste Vaney, Emmanuel Colin
  • Method of protecting an aircraft landing gear while the aircraft is being towed, and pin for coupling a towing bar to an orientable lower part of a landing gear
    Patent number: 9108746
    Abstract: A method of protecting an aircraft undercarriage (1) while it is being towed by means of a tow bar (13) hitched to a steerable bottom portion of the undercarriage, the method including the step of generating an alarm when a towing force imposed by the tow bar on the undercarriage reaches or exceeds a predetermined force threshold. The threshold is caused to vary as a function of an orientation of the steerable bottom portion of the undercarriage.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: August 18, 2015
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventors: Robert Kyle Schmidt, Jean-Luc Alleau
  • Method of using and renovating a disk from a stack of disks of a vehicle brake
    Patent number: 9108278
    Abstract: The invention relates to a method of using and renovating a disk (9) from a stack of disks (7) of a vehicle brake, the method comprising the steps of using the disk during a plurality of lives and of compensating for loss of thickness after each life by assembling the disk with a complementary portion.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: August 18, 2015
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventor: Olivier Dereure
  • MEASURING DIMENSIONAL CHARACTERISTICS OF A PRODUCTION PART
    Publication number: 20150219477
    Abstract: A measuring tool (1) for measuring dimensional characteristics (D) of a production part (2). The tool (1) comprises a unit (3a, 3b) for positioning the measuring tool (1) relative to the part (2) and at least one measuring apparatus (4a, 4b) mechanically linked to the positioning unit (3a, 3b) by a mechanical link (5). The positioning unit (3a, 3b) comprises a first centring device (6a) for coming into contact against an inner surface (7a) of a first bore (22a1) of the production part (2) and a second centring device (6b) for coming into contact against an inner surface (7b) of a second bore (22b1) of the production part (2), the first and second bores (22a1, 22b1) being coaxial. The mechanical link (5) allows the relative displacement of the measuring apparatus (4a, 4b) relative to the first and second centring devices (6a, 6b).
    Type: Application
    Filed: February 2, 2015
    Publication date: August 6, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Jean-Benoit DASTUGUE, Jean-Claude COUCHINAVE, Xavier ELIZALDE
  • METHOD FOR MONITORING AT LEAST TWO ELECTROMECHANICAL BRAKING ACTUATORS
    Publication number: 20150217748
    Abstract: A method for monitoring at least two aircraft wheel electromechanical braking actuators. For each electromechanical actuator, the method includes first determining a current value representative of the power supply current of the electromechanical actuator and determining a reference current value estimated from the power supply currents of at least one other electromechanical actuator. Then, the representative current value and the reference current value are compared. Any abnormal operation of the electromechanical actuator is detected when the difference between the representative current value and the reference current value is above a predetermined threshold.
    Type: Application
    Filed: January 26, 2015
    Publication date: August 6, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Philippe CHICO, Frédéric RAGOT, François BONIGEN, Thomas LEPAGE
  • Method for manufacturing a straight insert made of metal matrix composite material
    Patent number: 9085818
    Abstract: A method for manufacturing a straight insert intended to be incorporated in a metal container by HIC includes placing coated wires in a rectilinear juxtaposition over a predefined length in a straight gutter-shaped tool and joining the coated wires together. The insert includes a bundle of coated wires that are joined together and have a predefined length. The wires are made from metal-coated ceramic fibers.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: July 21, 2015
    Assignees: SNECMA, MESSIER-BUGATTI-DOWTY
    Inventors: Jean-Michel Patrick Maurice Franchet, Gilles Charles Casimir Klein, Richard Masson, Louis Salvat
  • METHOD FOR MONITORING A BLOCKING MEMBER, AND ELECTROMECHANICAL ACTUATOR
    Publication number: 20150198209
    Abstract: A method for monitoring a blocking member (12) of an electromechanical actuator (1). The monitoring method comprising the steps of: determining a value representative of a power supply current of a motor (11) during an off-load operating phase of the electromechanical actuator (1); comparing the value representative of the power supply current with a predetermined current threshold defined from nominal off-load operating characteristics of the electromechanical actuator (1); and detecting an accidental locking of the blocking member (12) when the value representative of the power supply current is above or equal to the predetermined current threshold. There also is an electromechanical actuator (1) comprising a blocking member (12) monitored by such a method.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 16, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Thomas LEPAGE, Philippe CHICO, Francois BONIGEN, Frederic RAGOT
  • Electromechanical braking system architecture
    Patent number: 9073634
    Abstract: The invention relates to a braking system architecture for an aircraft having wheels 1 braked by means of respective brakes 2, each brake having a plurality of electromechanical actuators 3a, 3b, the braking system having controllers 8a, 8b for distributing electric power Ps to the actuators 3a, 3b in response to a braking setpoint, each controller 8a, 8b being associated with some of the actuators of any given brake. According to the invention, each controller 8a, 8b has an input Ev for receiving information about the rotary speed of the wheel 1 braked by the actuators associated with said controller, the controller including processor means 13 for modulating the power transmitted to the actuators as a function of the speed of rotation of the wheel in order to provide anti-skid protection.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: July 7, 2015
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventor: Julien Thibault
  • Main landing gear of an aircraft, comprising two walking beams joined to the structure of the aircraft in an articulated manner
    Patent number: 9073629
    Abstract: An aircraft undercarriage comprising two rocker beams (1, 2) carrying wheels and mounted to pivot on a common pivot (Y1), the undercarriage including a shock-absorber device comprising two connecting rods (5, 6), each rod (5, 6) being coupled to a respective rocker beam, at least one connecting rod being telescopic and forming a shock absorber. The two connecting rods also are coupled to a rocker (7) pivotally mounted on a central pivot (8), wherein the common pivot of the rocker beams is secured to a structure of an aircraft to which the undercarriage is fastened and is mounted in a fixed position on the structure. The central pivot of the rocker is movable between a first position (rocker beams in a landing position) and a second position in which a rocker has pulled on the connecting rods to cause the rocker beams to pivot towards a retracted position of the undercarriage.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: July 7, 2015
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventor: Dominique Ducos
  • AIRCRAFT WHEEL RIM WITH REMOVABLE FLANGE
    Publication number: 20150183268
    Abstract: Aircraft wheel rim in two parts, one of them a main part (1) comprising a hub (2), a disc (4) extending between the hub and an annular external portion (3) intended to accept a tyre and shaped to have a flange (5) at one of its ends, the other of its ends being shaped to accept a removable part (10) forming a flange (12) which removable part is attached to the annular external portion after the tyre has been fitted, the rim comprising means for preventing the removable flange from rotating relative to the rim comprising at least one link (20) having ends the centres of which define an axis which extends in a plane perpendicular to an axis of rotation of the rim while at the same time extending obliquely to make an angle (?) with respect to a radial direction, one of the ends being coupled to the main part and the other of its ends being coupled to the removable part.
    Type: Application
    Filed: December 17, 2014
    Publication date: July 2, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Patrick BALDASSARA, Xavier DELAYRE, Martial GALLAND
  • METHOD OF CONTROLLING AN ELECTRIC MOTOR FOR DRIVING ROTATION OF AN AIRCRAFT WHEEL
    Publication number: 20150175257
    Abstract: A control method for controlling an electric motor driving rotation of an aircraft wheel (4a, 4b) for generating a torque command for controlling the motor, the method being characterized in that it comprises implementing: a first servo-control loop (23) having as its input signal a speed setpoint, having as its return signal a signal representative of the speed of the wheel or of the aircraft, and having as its output signal an acceleration setpoint (Cons_a); and a second servo-control loop (24) having as its input signal the acceleration setpoint (Cons_a), as its return signal a signal representative of the acceleration (Ar) of the wheel or of the aircraft, and as its output signal the torque command.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 25, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Clement Gorce, David Lemay
  • Method of managing the braking of an aircraft
    Patent number: 9061661
    Abstract: A method of managing the braking of an aircraft, the aircraft having a plurality of wheels R1, . . . , R12, each fitted with a brake F1, . . . , F12 adapted to generate a braking force in response to brake pedals 5 being depressed. The management method comprising the steps of (1) distributing the wheels fitted with respective brakes in at least two distinct groups G1, G2, G3, G?1, G?2, G?3; (2) allocating respective braking relationships to each of the groups of wheels for determining how braking force varies as a function of the depression of the brake pedals; and (3) acting at predetermined intervals to permutate the allocation of the relationships to the groups in application of a predefined permutation relationship. The method also includes a step of modifying the permutation relationship in response to the occurrence of a predetermined event.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: June 23, 2015
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventors: Jean-Baptiste Vaney, David Frank, David Lemay
  • Hydraulically regulated electromagnetic actuator, and landing gear fitted with such an actuator for controlling same
    Patent number: 9056672
    Abstract: An electromechanical actuator comprising an electric motor (11) for driving an output shaft (4) in rotation via a reduction gear (20) and passive regulation stage (30) allowing for control of the speed of rotation of the output shaft. A braking member is arranged between an output of the reduction gear and the output shaft to be driven, the braking member being arranged to ensure two different braking levels depending on the direction of rotation of the shaft. The braking member is of hydraulic type and comprises a paddle (33) for transferring fluid between two chambers (34, 35) under the effect of the rotation of the output shaft, transferred fluid passing through a selective drawing member (41) which, depending on the direction of rotation of the actuator, opposes two distinct resistances to the decantation of the fluid from one chamber to the other.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: June 16, 2015
    Assignee: MESSIER-BUGATTI-DOWTY
    Inventors: Nicolas Keller, Edouard Campbell, Sébastien Dubois, Albert De Pindray
  • Apparatus comprising an end fitting connected to a body
    Patent number: 9056431
    Abstract: An apparatus includes a fitting connected to a body. The fitting has an engagement portion including a channel formed into a peripheral surface of it and an axis. The body includes an axial layer provided around at least some of the peripheral surface of the engagement portion of the end fitting and a hoop layer provided around the axial layer at a location corresponding to at least some of the channel so as to urge at least some of the axial layer into a portion of the channel. The channel is arranged such that at least some of it defines a pathway that is non-orthogonal with respect to the axis of the fitting, such that at least some of the surface area of the channel defines a load bearing surface for the transfer of torque between the fitting and body when a rotational force is applied to one of them.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: June 16, 2015
    Assignees: MESSIER-DOWTY LIMITED, MESSIER-BUGATTI-DOWTY
    Inventors: David Bond, Paul Trowbridge, Andrew Smith, Richard Masson, Patrick Dunleavy
  • METHOD FOR REDUCING THE APPARENT MANOEUVRING TIME FOR LANDING GEAR OF AN AIRCRAFT
    Publication number: 20150144735
    Abstract: The invention relates to a method for controlling the manoeuvring of the landing gear of an aircraft, in which at least one of the steps of pulling on the doors of the bay to relieve the door retaining hook, actuating the door hook or hooks to free the doors and opening the doors is executed in response to the detection of a flight situation suitable for the occurrence of a manoeuvre order, even before the manoeuvre order is received.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 28, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventor: Gilbert LECOURTIER
  • METHOD FOR THE RECONDITIONING AND USE OF BRAKE DISCS OF THE REAR STATOR TYPE WITH STUDS, ASSEMBLED DISC AND CORRESPONDING STACK OF DISCS
    Publication number: 20150136547
    Abstract: The invention relates to a method for the reconditioning and use of brake discs of the rear stator type with studs, the method comprising the steps of using a first disc (12) during a first life, using a second disc (112) during a first life, after the first life of the first disc and the first life of the second disc, machining a friction surface on one of the discs and a rear surface on the other of the discs so that one of said surfaces comprises at least one shoulder (17) and the other of said surfaces comprises at least one notch (118), and nesting the first disc in the second disc such that the notch and the shoulder cooperate so as to centre the discs.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Pierre CHAMBARD, Come DORGE
  • AIRCRAFT WHEEL WITH ROTATIONAL DRIVE ATTACHED TO CLEVISES PROJECTING FROM WHEEL RIM
    Publication number: 20150137581
    Abstract: An aircraft wheel equipped with rotational drive (10) attached to clevises (19) projecting from a flank of a rim (5) of the wheel. The drive comprises a ring (11) able to cooperate with a drive actuator and is provided with members (12) for attaching to the clevises of the rim such that, between two attachment members, the ring forms a flexible and deformable segment.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 21, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventor: Nicolas MAZARGUIL
  • AIRCRAFT WHEEL
    Publication number: 20150136899
    Abstract: An aircraft wheel which is provided with rotational driving unit (110). The driving unit comprises a driving ring (111) which is associated with structure (112) for attaching the ring to a rim of the wheel. The attachment structure is fixed to treads (119) of the rim which further serve to retain removable brake blocks (121) with which the rim is provided.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 21, 2015
    Applicant: Messier-Bugatti-Dowty
    Inventor: Nicolas MAZARGUIL