Patents Assigned to Messier
  • 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
  • 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
  • BRAKE ASSEMBLY AND A METHOD OF OPERATING A BRAKE ASSEMBLY
    Publication number: 20150204399
    Abstract: A brake assembly for a vehicle comprising a wheel comprising a hollow section and a rim, the rim comprising a first portion comprising an electrically conductive material and a second portion adjacent to the first portion comprising a plurality of a permanent magnets and a stator comprising at least one electromagnetic coil arranged to be located within the hollow section of the wheel, wherein the stator is moveable between a first position in which the at least one electromagnetic coil is inductively coupled to the first portion of the rim when the wheel is rotating relative to the stator, and a second position in which the at least one electromagnetic coil is inductively coupled to the second portion of the rim.
    Type: Application
    Filed: July 2, 2013
    Publication date: July 23, 2015
    Applicant: Messier-Dowty Limited
    Inventor: Kyle Schmidt
  • 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
  • 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
  • ELECTROMECHANICAL ACTUATOR FOR VEHICLE BRAKE AND BRAKING SYSTEM COMPRISING SUCH AN ACTUATOR
    Publication number: 20150136543
    Abstract: The invention relates to an electromechanical actuator for a vehicle brake comprising a body (4) in which are arranged an electric motor (5) and a threaded plunger cooperating via a helical link with a nut (8) driven in rotation by the electric motor (5). According to the invention, the nut (8) is mounted to move axially in the body (4) of the actuator between a rest position towards which the nut (8) is pushed back by elastic means, and an active position towards which the nut is displaced against the elastic means when a braking force is applied, the actuator further comprising means for detecting the axial displacement of the nut.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Franck SELLES, Eric EVENOR, Nathanael RICHARD
  • 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 landing gear including a fairing
    Patent number: 9027878
    Abstract: An aircraft landing gear including a fairing (12) arranged to be moveable between first and second configurations, wherein in the first configuration the fairing shields an element of the landing gear from an incident airflow, the fairing being arranged to be in the first configuration when the landing gear is deployed but unloaded, and wherein in the second configuration the fairing exposes the landing gear element to the incident airflow, the fairing being arranged to be in the second configuration when the landing gear is deployed and loaded.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: May 12, 2015
    Assignee: Messier-Dowty Limited
    Inventor: Yann Simonneaux
  • BRAKE ACTUATOR FOR AIRCRAFT WHEEL HYDRAULIC BRAKE
    Publication number: 20150122594
    Abstract: A brake actuator for an aircraft hydraulic brake, insertable in a cavity of a brake ring. The actuator comprises a liner (1) designed to be housed sealingly in the cavity of the ring, a piston (3) mounted to slide sealingly in the liner along an axis of sliding (X) so as to apply a braking force when a fluid is introduced under pressure into the cavity, and a wear compensation device (10) which defines a position to which the piston retreats into the liner by means of mobile stop (11) that can be moved forward by the piston as a braking force is applied. An elastic return member (16) returns the piston towards the position of retreat bearing against the mobile stop. The wear compensation device extends between the liner and the piston, downstream of a seal extending between the liner and the piston so as not to be bathed in the fluid in the cavity, the stop being held still by friction on the liner.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 7, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Robin LUCIENNE, Christophe VERDURMEN
  • BRAKING ACTUATOR FOR A HYDRAULIC BRAKE OF AN AIRCRAFT WHEEL
    Publication number: 20150122595
    Abstract: A braking actuator for a hydraulic aircraft brake, received in a cavity of a ring of the brake. The actuator comprises a liner structure (1) sealed in the cavity of the ring, and a piston (3) slidably mounted in the liner structure to apply a braking force. A wear-compensating device (10) defines a retreated position of the piston in the liner structure by an axially movable stop (11) which can be advanced by the piston during the application of a braking force and in frictional relationship with a fixed part (18) of the wear-compensating device secured to the liner. An elastic member (24) returns the piston to the retreated position defined by the piston bearing against the movable stop, the movable stop being in frictional relationship with the fixed part via at least one telescopic intermediate element (16) interposed between the movable stop (11) and the fixed part (18).
    Type: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventors: Jacques BUSSIERE, Vincent GONZALEZ, Marie-Laure DE CRESCENZO