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    THROTTLE CONTROL LEVERS
    2.
    发明公开
    THROTTLE CONTROL LEVERS 审中-公开

    公开(公告)号：US20230365267A1

    公开(公告)日：2023-11-16

    申请号：US18315667

    申请日：2023-05-11

    申请人： Ratier-Figeac SAS

    发明人： Julien Serieys ,  Didier Delbruel

    IPC分类号： B64D31/04 ,  G05G1/01 ,  G05G5/00 ,  G05G1/04

    CPC分类号： B64D31/04 ,  G05G1/01 ,  G05G5/005 ,  G05G1/04 ,  G05G2505/00

    摘要： A throttle control lever suitable for controlling the magnitude and direction of thrust of one or more aircraft engines is described. The throttle control lever comprises a frame, a trigger mechanism, a connection element, a cam engagement mechanism, a biasing means, a cam, and a grip suitable for gripping by a user when the throttle control lever is in use, The cam comprises a slot having first and second slot portions and a stop portion. The stop portion extends between and connects the first and second slot portions. The cam engagement mechanism comprises a cam lever and a slot engagement element, the cam lever is pivotally attached to the frame via a cam lever pivot, and the slot engagement element is attached to the cam lever. The trigger mechanism comprises a trigger lever and a trigger, the trigger lever is pivotally attached to the frame via a trigger pivot.

    Propeller health monitoring
    3.
    发明授权
    Propeller health monitoring 有权

    公开(公告)号：US11708175B2

    公开(公告)日：2023-07-25

    申请号：US15974762

    申请日：2018-05-09

    申请人： Ratier-Figeac SAS

    发明人： Brian P. Huth ,  Abdellah El Haloui

    IPC分类号： B64D45/00 ,  G01M5/00 ,  G01L1/22 ,  G01M1/28

    CPC分类号： B64D45/00 ,  G01L1/2262 ,  G01M5/0016 ,  G01M5/0025 ,  G01M5/0033 ,  G01M5/0041 ,  G01M5/0083 ,  B64D2045/0085 ,  G01M1/28

    摘要： A method of monitoring the health of an aircraft propeller whilst the propeller is in operation, the propeller having a plurality of blades extending radially outwardly from hub arms of a propeller hub, which in turn extend radially outwardly from a central axis extending through the propeller and a propeller drive shaft, is provided. The method comprises obtaining measurements representative of the strain in each of at least some of the hub arms using strain sensors, each of the strain sensors being provided on a respective hub arm. A corresponding propeller health monitoring system, an aircraft propeller comprising the system and an aircraft comprising the propeller are also provided.

    Torque limiter
    6.
    发明授权
    Torque limiter 有权

    公开(公告)号：US11635112B2

    公开(公告)日：2023-04-25

    申请号：US17124706

    申请日：2020-12-17

    申请人： Ratier-Figeac SAS

    发明人： Bruno Seminel

    IPC分类号： F16D27/112 ,  F16D27/00

    摘要： A torque limiter device includes an input shaft having a first contact surface and an output shaft having a second contact surface. The input and output shafts are operable in an engaged position wherein the contact surfaces are brought into mechanical engagement, and a disengaged position wherein the contact surfaces are separated. A biasing mechanism provides a bias force that mechanically biases the input and output shafts in one of the positions and sets a threshold torque. An electromagnet is arranged to selectively provide an electromagnetic force that opposes the bias force when an activation current is supplied. A rotation sensor arrangement measures a respective rotation of the input shaft and of the output shaft. A controller determines a difference in rotations of the shafts and selectively supply the activation current to the electromagnet so as to disengage the input and output shafts when the rotation difference exceeds a threshold.

    AIRCRAFT BRAKE WITH THERMAL FUSE
    7.
    发明申请
    AIRCRAFT BRAKE WITH THERMAL FUSE 有权

    公开(公告)号：US20230082894A1

    公开(公告)日：2023-03-16

    申请号：US17940366

    申请日：2022-09-08

    申请人： Ratier-Figeac SAS

    发明人： Adil SARDI ,  Fabien Ramirez ,  Patrice BRION ,  Bertrand PROUZET

    IPC分类号： F16D65/02 ,  F16D55/00

    摘要： A brake for an aircraft includes a housing, a shaft defining an axis (X) and extending into the housing, a floating brake disk on the shaft, the brake disk fixed for rotation with the shaft and arranged to be axially movable within the housing, a static brake pad arranged on a first side of the floating brake disk, a movable brake pad arranged on a second, opposite, side of the floating brake disk and biasing means for moving the movable brake pad relative to the housing to press the movable brake pad against the floating brake disk. The biasing means press the floating brake disk against the static brake pad to apply braking force to the floating brake disk. The brake also includes a thermal fuse in thermal contact with the static brake pad. The thermal fuse has a fusing temperature, T, above which the thermal fuse fuses.

    Lubrication of screw actuators
    8.
    发明授权
    Lubrication of screw actuators 有权

    公开(公告)号：US11543021B2

    公开(公告)日：2023-01-03

    申请号：US17034572

    申请日：2020-09-28

    申请人： Ratier-Figeac SAS

    发明人： Frédéric Vermande

    IPC分类号： F16H57/00 ,  F16H57/04 ,  F16H25/22 ,  F16H25/24

    摘要： A screw actuator comprises a nut having an internal helical formation and a screw having an external helical formation and rotatably received within the nut, relative rotational movement of the nut and screw causing axial movement of one of the nut and screw relative to the other of the nut and screw. The actuator further comprises a lubricant reservoir and a lubricant pressuriser for pressurising lubricant within the lubricant reservoir. A lubricant receiving chamber is formed in the nut. The screw extends through the lubricant receiving chamber. A lubricant supply passage fluidly connects the lubricant reservoir and the lubricant receiving chamber. A valve controls the flow of lubricant between the lubricant reservoir and the lubricant receiving chamber. A lubricant supply piston is received in the lubricant receiving chamber and is mounted on the external helical formation of the screw.

    Redundant VDT with DC interface
    9.
    发明授权
    Redundant VDT with DC interface 有权

    公开(公告)号：US11467005B2

    公开(公告)日：2022-10-11

    申请号：US16665105

    申请日：2019-10-28

    申请人： Ratier-Figeac SAS

    发明人： Cédric Antraygue

    IPC分类号： G01D5/22 ,  H01F21/04

    摘要： A position sensing system for sensing a position of an input shaft of a variable differential transformer (VDT), comprising said VDT, which comprises first and second AC signal output means that are configured to output a first AC output signal and a second AC output signal respectively. The sensing system further comprises AC/DC converting means configured to convert said first AC output signal to a first DC output signal and an AC/DC converting means configured to convert said second AC output signal to a second DC signal. The first and second DC output signals each indicate an individual position of said input shaft.