• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Actuator (1) comprising: - a screw (15) mounted on a frame (8) for pivoting; - A nut (19) connected to an element to be moved and which is engaged on the screw (15) to be moved between a first position of over-retraction and a second position of deployment on either side of a third position retraction device separated from the retraction position by a distance corresponding to a rotation of the screw (15) of a first angular sector (Ai); an anti-extension device (30) comprising a friction disc (36) comprising at least one smooth surface (40) and an obstacle (41.1, 41.2) for both collaborating with at least one ratchet (42) and defining and respectively at least one second angular sector (A2, A3) for free rotation of the friction disc (36) and a locking position of the friction disc (36).
    公开号:FR3063532A1
    申请号:FR1751773
    申请日:2017-03-06
    公开日:2018-09-07
    发明作者:Mickael Werquin；Julien HAUTECOEUR；Christophe Bastide；Pascal Omnes
    申请人:Safran Electronics and Defense SAS；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    The present invention relates to the field of aeronautical actuators, and more particularly the thrust reverser aetionnateurs of reactors and, more particularly, of turbojets.
    BACKGROUND OF THE INVENTION
    In a conventional reverse thrust system of a turbojet engine fitted to an aircraft, the nacelle · of the turbojet engine is provided with movable surfaces which can be · moved between a first retraction position and a second deployment position so as to return towards 1 'before part of the gas flow produced by the turbojet, these positions are located on either side of a third retraction position of the moving surface. Activation of the thrust reverser makes it possible in particular to reduce the landing distance of the aircraft. The deployment of the mobile surfaces subjects them, from the start of their opening, · to significant efforts which tend to cause a rapid passage of the surface · mobile from its retraction position · to its deployment position.
    Traditionally, moving surfaces are moved by means of hydraulic cylinders which have the particular advantage of braking the load to which they are subjected.
    It has been envisaged to equip the thrust reversers with electric actuators replacing the hydraulic cylinders. Such an electric actuator comprises a frame and an electric motor for rotating a ball screw. The ball screw includes a screw • mounted on the frame to pivot and a nut engaged on the screw. The nut ·· is provided with means · for connection to the mobile surface and can move from a · first retraction position in which the mobile surface is closed towards a second deployment position la from which the mobile surface deflects at least part of the reactor flow.
    In a ball screw, there is so little friction between the nut and the screw that it constitutes a 5 reversible movement transmission system: rotation of the screw causes an axial displacement of the nut but, conversely, a axial force on the nut can cause a rotation of the screw and an axial displacement of the nut in the direction of this axial force. However, it is essential to prevent the mobile surface from being able to deploy under the effect of forces which would be exerted directly on it: in fact: an accidental deployment of the mobile surface could have eatastrophic consequences for the aircraft security. In general, we seek: to control the deployment of the mobile surface and in particular the speed of deployment. To this end, the actuator can incorporate an anti-extension device (commonly known as “No Back”) which slows down the rotation of the screw when the movable surface exerts on the nut a tensile force tending to move it. towards its second retraction position. Such a situation occurs in particular during the opening of the mobile surface during the landing phase. The apparent wind to which the turbojet engine is subjected, to which the forces of the flow of the turbojet engine on the mobile surface can be added, then exerts a significant traction force on the mobile surface from the start of its opening :.
    The anti-extension device is arranged so as not to slow down the rotation of the screw when the nut moves from: its second deployment position to its third retraction position so as not to require oversizing of the motorization electric:.
    To oppose the accidental deployment of the moving surface, there is further provided a main locking device (or PLS for “primary look System”) comprising locks mounted on the nacelle to grip the moving surface in its retraction position. Generally, the movable surface actuators adopt their first so-called retraction position after having traveled. a retraction overtravel from their third retraction position. when the nut is in its first position of retraction) retraction in which it maintains the movable surface beyond its retraction position, the movable surface slightly compresses the joints of the nacelle cooperating with the movable surface, which makes it possible to- disengage the locks from the main locking device to allow subsequent deployment of the moving surface.
    The mobile surface is dimensioned on the assumption that, in flight, it is locked: by the main locking device in its retracted position. The vibrations to which the moving surface is subjected in flight can generate brief forces which tend to bring the moving surface towards its over-retraction position. The reversibility of the ball screw allows such movement. When these forces disappear, it is important that the mobile surface is free · to return to its third: retraction position for which · the nacelle is dimensioned. Indeed, failing to return to its retracted position, the nacelle · would be subjected to significant efforts resulting from the combination of internal effort · to keep the moving surface in the over-retracted position attracted to vibrations and from its connection with the actuator instead of the primary lock. The most favorable dimensioning · of the doors and the nacelle being obtained with efforts passing through the main locks and not by the aetionnenrs, it is then advisable that the actuator leaves free the return of the nacelle from its first position of over-retraction toward its third retraction position.
    the passage of the nut since its third
    During retraction position, rotation of over-retraction the device to its first position of anti-extension brakes its weight and a brake
    1'Inversion the via and prevents the nut from reaching the third retraction position. This then obliges to set up a mechanism for disengaging the anti-extension device which represents a security risk and then requires additional control instrumentation.
    These solutions increase the space requirement of the equipment, which is the use of electric actuators for thrust.
    OBJECT OF THE INVENTION
    An object of the invention is to reduce the weight and size of an electric thrust reverser actuator.
    SUMMARY OF THE INVENTION
    For this purpose, there is provided an actuator comprising a frame, a screw mounted on the frame for pivoting as well as a nut which is provided with means of connection to an element to be moved and which is engaged on the screw to be moved, by the screw in rotation, between a first over-retraction position and a second deployment position on either side of a third retraction position separated from the over-retraction position by a distance corresponding to. a rotation of the screw of a first angular sector. The actuator also comprises an extension comprising a rotation disc with respect to the screw and intended to brake by friction A part integral in rotation with the screw free anti-friction device when the element to be moved exerts on the nut a tensile force tending to move it towards the second deployment position. According to the invention, the friction disc comprises at least one smooth surface and an obstacle formed in the smooth surface: for both: collaborate with at least one pawl linked to the frame and thus define respectively at least one second angular sector of free rotation of the friction disc in a predetermined direction and a blocking position of the friction disc in this predetermined direction, The smooth surface: has a: length such that the amplitude of the first angular sector is strictly less than the amplitude of the second sector angular.
    Within the meaning of the present application, a surface: of the friction disc is said to be “smooth” when it is free from any obstacle capable of interacting with the pawl to block the rotation of the friction disc.
    When passing the nut from its first retraction position to its third retraction position, the
    2: Q pawl cooperates with the smooth surface and the mechanism: anti-extension is inactive (it does not oppose the rotation of the screw in this direction). The movable surface is therefore free to move between its retraction position and its retraction position. Thus, in flight, when the mobile surface is subjected to: a force tending to cause it to pass from its retraction position to its over-retraction position, the mobile surface freely returns to its: retraction position and the nacelle is not subject to no additional internal effort.
    In a conventional friction extension mechanism, the position of the friction disc is indeterminate. Thus, the angular position: relative of the smooth surface and the pawl are unknown when the nut is in its first position of over-retraction: and there is a possibility that the pawl: comes to collaborate with
    1 obstacle during its passage from the first position of over-retraction to the third position of retraction. The anti-extension device can then block the rotation of the screw and prevent it; The nut to reach its third retraction position. It is therefore necessary to angularly synchronize the position of the obstacle with the position of the nut when it is in its third retraction position. The actuator motor is used to move the nut from its first retraction position to its third retraction position in order to provide the torque necessary to bring the nut to its third position even if the anti -exfension becomes active during: from: this displacement. There was synchronization of the observed tack: with the ratchet. The pawl is then free to slide on the smooth surface of the friction disc over an amplitude equal to that of the first angular sector lots of a displacement of the nut from its third retraction position to its first retraction position and to return to its third retraction position. The anti-extension mechanism is therefore inactive · between the over-retraction and retraction positions, preventing a blocking of the actuator nut between its first and its third position can generate stresses - not desired on Platform.
    Another advantage of the invention is that the small number of parts used improves the reliability of the actuator.
    The difference in amplitude between the first and second angular sector takes into account the manufacturing tolerances of all the elements (nacelle, mobile surface, etc.) involved in the kinematic chain: as well as the amount of overtravel of retraction. It should be noted that · at most the amplitudes of the first and of the do ui11e counting coaxially to the axis of the second angular sector are close, at most the number of pawls and / or obstacles can be important.
    The manufacture of such an actuator is facilitated when the part integral with the rotation of the screw comprises a bush mounted to slide on the screw. A ready-to-assemble assembly can be produced when the straight portion extending rotation of the screw and the friction disc is slidably mounted on the straight portion of the sleeve.
    Advantageously, the anti-extension device comprises a first abutment disc provided with rollers whose axes of rotation extend radially, the first abutment disc being mounted · free to rotate around the screw.
    The braking of the anti-extension device is improved when the anti-extension device comprises a biased roller disc mounted freely · in rotation around · the screw and provided with rollers whose axis of rotation extends in a direction forming a non-zero angle with a radial direction passing through one of the ends of the roller, the biased roller disc extending between the friction disc and the rotating part of the screw.
    The manufacture of such an actuator is simplified when the smooth surface is located at the periphery of the friction disc.
    When · the distance separating the retraction position from the over-refraction position is less than half the pitch of the. screws, it is preferable · that the friction disc collaborate with two pawls. The number of pawls that can be installed can reach · the first integer less than the ratio of the screw pitch to the distance between the retraction position and the retraction position.
    The invention also relates to a thrust reverser comprising an actuator of one of the above types.
    Other characteristics and advantages of the invention will emerge on reading the following description of a particular non-limiting embodiment of the invention.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Reference will be made to the appended figures among 10 of which:
    - Figure 1 is a perspective view of an actuator nacelle according to the invention;
    - Figure 2 is a perspective view of an actuator according to the invention>
    - Figure 3 is a schematic sectional view of the actuator according to the invention in the retraction position;
    schematic with a s chÊrrtâ t x qu e -; eh
    - the figured 4 is a schematic view sectional 20 of The actuator according to Invention in position of retraction; - the figures · 5 is a schematic view sectional of 1 aeti onneur according 1 invention in position of deployment ; 25 Figure 6 is a partial view of detail in
    section of the actuator according to the invention;
    - Figure 7 is a partial schematic sectional view of the actuator according to the invention;
    - Figure 8 is a partial schematic exploded view of the anti-extension device of the actuator according to the invention;
    - Figures 9 to 13 are schematic views of a friction disc of the actuator according to the invention in various configurations.
    DETAILED DESCRIPTION OF THE INVENTION With reference to FIGS. 1 to 13, the electromechanical actuator of the invention, generally designated 1, comprises an extension tube 2, a first end 3 of which comprises a ball joint 4 connected to a movable surface 5 of a thrust reverser 6 of a nacelle 7. The frame 8 of the actuator 1 comprises a cardan joint 9 of articulation of the actuator 1 to the nacelle 7 of the turbojet engine and a sheath 8.1 in which the extension tube 2 slide between a first over-retraction position (shown in Figure 3) and a second deployment position (shown in Figure 5). FIG. 4 represents a third retraction position situated between the first over-retraction position in FIG. 3 and the second deployment position of FIG. 5. The second deployment position corresponds to a position of complete deployment of the movable surface 5 which is then in contact with a deployment stop, The third retraction position corresponds to a closed position of the movable surface 5 in which said movable surface 5 is' in abutment on the seals extending between the mobile surface 5 and the nacelle and has its external surface flush with the external surface of the nacelle. In this;
    position the movable surface 5 -is supported on the primary locking device.
    The first retraction position corresponds to a position in which the movable surface 5 is slightly pushed into its housing and crushes the seals extending between the movable surface 5 and the nacelle; 7 which is then in contact with a retraction stop.
    The actuator 1 is connected to a motor 10 via a flange · It for coupling integral with a bevel gear 12 meshing with a bevel gear 13. One; first end 14 fluted with a screw 15 tubular ball is mounted in a central bore 16 groove of the toothed wheel 13, The screw 15 extends along a longitudinal axis Oy and has a second end 17 provided with a ring
    18 cooperating with the inside of the extension tube 2 to guide the sliding along the longitudinal axis Oy, a ball nut 19 is engaged on the screw 15. A first groove 20 made in 'the outer face 21 of the nut 19 receives a key 22 in bronze - which cooperates with a second groove 23 of the sleeve 8,1 thus blocking the rotation of the nut 19 relative to the screw 15. The nut 19 is also 'connected by a threaded nut ^ 24 of connection to a second end 25 of the extension tube 2,
    The screw 15 is rotatably mounted in; bearings
    2 6.1 and 2.2 in solidarity; of the frame 8. Thus, the rotation of the screw 15 in a first direction (represented by the arrow X in FIG. 2) makes it possible to move the nut 19 on; the screw 15 -between a first position of over-retraction of the nut 19 and a second deployment position of the nut 19 on either side of a third position -from; retraction of the nut 19. The first, second and third positions of the nut correspond respectively to the first position of over-retraction of the extension tube 2 (shown in FIG. 3), there the second position of deployment of the tube extension 2 (shown in Figure 4) and the third retraction position of the extension tube 2 (shown in Figure 5), The distance between the first retraction position of the nut 19 and the third retraction position of the nut 19 corresponds to a rotation of the screw 15 of a first angular sector Ai of 160 degrees.
    The actuator 1 also comprises an anti-extension device 30 comprising a first bearing surface 31 integral with the frame 8 and which faces a first abutment disc 32 provided with rollers 32,1 whose axes of rotation are extend radially (i.e. perpendicular to the longitudinal axis Oy). The first stop disc 32 is mounted to rotate freely around a straight portion 33.1 of a socket 33 mounted on the screw 15. The inner bore 33.2 of the socket 33 has splines · 33.3 which cooperate with the grooves 15.1 of the screw · 15, thus joining in rotation the sleeve 33 and the screw 15. A nut 27 engaged on the end 14 of the screw 15 tightens the toothed wheel 13 against a spacer 28 which itself tightens the sleeve 33 against the bearing 26 thus authorizing the transmission of forces along the longitudinal axis between the socket 33 and the screw 15.
    The sleeve 33 comprises an annular portion 34 extending in a plane perpendicular to the longitudinal axis Oy. The annular portion 34 comprises a first face 34.3 extending opposite the first abutment disc 32 and a second face 34.2 s 'extending facing a roller disc' bias 35. The bias roller disc 35 is mounted to rotate freely around the screw 15. More specifically, the bias roller disc 35 is rotatably mounted around: the straight portion 33.1 sleeve 33. The bias roller disc 35 is provided with rollers
    35.1 whose axis of rotation extends in a direction forming a non-zero angle · a with a: radial direction passing through one of the ends of each roller 35.1. A friction disc 36 is mounted to rotate freely around the straight portion 33.1 of the. sleeve 3: 3 and is interposed: between the bias roller disc 35 and a second stop disc 37. The second stop disc 37 is mounted to rotate freely around the straight portion 33.1 of the socket 33 and is provided with rollers
    37.1 of which- the axes of rotation extend radially. A second support surface 38, here in the form of a disk:, is integral with the frame 8: and extends opposite the second abutment disk 37.
    As visible in FIG. 9, the friction disc 36 comprises, on its periphery · 39, a · smooth surface 40 in which is formed · a · first notch 41.1 and a second notch 41.2. ün ratchet 42 rotatably mounted on the frame 8 collaborates · alternately with the smooth surface 40 (Figure 10), the notch 41.1 (Figure 11) and the notch 41.2. The smooth surface 40 and the first and second notches 41.1 and 41.2 respectively define a second ·· and a third angular sector A 2 and a 3 of 180 degrees of free rotation of the friction disc 36 in the first direction I (and a second direction II opposite to the first direction of rotation I) and a blocking position of the friction disc 36 in the first direction I (FIG. 11).
    The length of the smooth surface · 40 is then such that the first angular sector Ai of 160 degrees is less than that of the · second and third angular sectors • A 2 and Ag of 180 degrees. In operation, the nut 19 (and therefore the movable surface 5) is initially in its third retraction position shown in FIG. 4 and the pawl 42 collaborates with the notch 41 (FIG. 11). To deploy the movable surface 5, the motor 10 is controlled so that it prints · to the screw 15 a rotation, according to the second direction of rotation II, of equal amplitude; âü first angular sector A I = 160 : degrees. The pawl 42 leaves the rotation of the friction disc 36 free around the screw 15 'and no braking force is applied. 'The nut 19 is brought from its third retraction position to its first over-retraction position (shown in Figure 3) and the pawl 42 and the second · notch 41.2 adopt relative positions shown in Figure 13. The seals of the movable surface 5 are compressed to the maximum and exert a tensile force on the nut 19 which is added to the tensile forces resulting from the apparent wind and the flow of the turbojet 7 and therefore on the screw 15, tightening the second face 34.2 from the annular portion 34, the biased roller disc 35, the friction disc 36, the second abutment disc 37 against the second support surface 38. Θη then controls: the disengagement of the latches; the main device for locking the moving surface 5 ; . One time: these locks disengaged, the motor 10 is controlled so that it prints with the screw; 15 a: rotation :, according to the first direction of rotation I. During this rotation, the friction disc 36 runs through a fourth angular sector A 4 (here at most 160 degrees;) during which the pawl 42 collaborates with the smooth surface: 40. The friction disc 36 is free to rotate and the anti-extension device 30 is not active. No braking of the movement occurs, The first notch 41.1 can then arrive in front of the pawl 42 which engages in the notch 41 and blocks the rotation of the friction disc 36 according to the first direction of rotation I. The forces exerted by the apparent wind and the flow of the turbojet 7 on the movable surface 5 always generate a tensile force on the nut 3 and the anti-extension device 30 slows down the rotation of the screw 15 ;. The motor 10 continues the rotation of the screw 15 in the first direction I until the nut 19 reaches its third retraction position. At this point, the pawl 42 is; already engaged in the first notch
    41.1 and the anti-extension device 30 is active. The motor 10 continues to rotate the screw; 5 in the direction ·: i and the nut 15 is subjected to a tensile force caused by the apparent wind and the flow of the turbojet engine 7 to which the movable surface 5 is subjected. The anti-extension device 30 brakes this movement by friction caused by the compression, by the annular portion 34 of the sleeve 33, of the biased roller disc.
    35 on the friction disc 36 and; the second disc of
    ΙΙΟ abutment 37 against the bearing surface 38. The motor 10 must then only supply the screw 15 with the torque necessary to overcome the difference between the torque caused: by the apparent wind on the moving surface 5 and which tends to move the nut towards its second position, deployment and torque: braking applied by the anti-extension device 30 on the socket 33.
    During the passage of the nut 19 from its second deployment position to its first: retraction position, the pawl 42 leaves free: the rotation of the friction disc 36 according to the second: direction II of fotâtlôn. The passage of the nut 19 from its first retraction position to its third retraction position takes place in the same way as: that described above.
    Of course the invention is not limited to: embodiments: described but includes: any variant coming within the scope of the invention as defined by the claims.
    In particular :
    - although here, a single: pawl has been described, the invention also applies to an actuator comprising a second pawl to cooperate with the second notch. The invention also applies to a single notch / pawl or to more than two and / or pawls;
    although Here the actuator c ompxθηηθ of extension
    The invention provided with a yoke assembly notches a rotated tube, others also applies to means of connection to an element to be moved such as for example a connecting rod connected by an eyelet or a pivot;
    - Although here the actuator is connected to the motor by means of a flange, the invention also applies to other means of coupling a motor to the actuator, for example a socket grooved, an Oldftam seal, a ball joint, a clutch disc ; a flexible drive shaft.
    - Although here the coupling flange is connected to a bevel gear, the invention also applies to other means of connection to the sum screw, for example a straight gear, a toothed or smooth belt;
    - although here the first angular sector is equal to 89% of the second and third angular sector, the invention also applies to other minimum ratios between the first and the second angular sector;
    - although here the anti-extension device includes a first and second roller thrust disc as well as a biased roller disc, the invention also applies to other configurations of anti-extension devices such as for example an anti-extension device without a stop disc roller and / or bias roller disc, or comprising other additional discs, or several friction discs;
    - Although here the pawl cooperates with notches :, the invention also applies to other types: of obstacles such as for example teeth projecting from it. disk periphery;
    - although here the sleeve · includes an annular portion, the invention also applies to other types of part of the screw integral in rotation such as: for example an annular portion directly machined or added on the screw;
    - although : here the friction disc is mounted free in rotation around the straight portion of the sleeve, the invention also applies to other ways of mounting the free disc in rotation around the screw as for example an assembly directly in contact of the screw, or on a bearing;
    - Although the screw is a right-hand ball screw, the invention also applies to other types of screw such as a roller screw or a left-hand screw;
    - Although the nut includes a key which cooperates with the sleeve, the invention also applies to other anti-rotation means, such as, for example, ball bushings or an anti-rotation blocking effected by the junction between the extension tube and the
    权利要求:
    Claims (8)
    [1]
    1. Actuator (1) comprising:
    5 - ütt frame (8);
    - a screw (15) mounted on the frame (8) to pivot;
    a nut (19) which is provided with means of connection (2) to an element to be moved (5) and which is engaged on the screw (15) in order to be : moved, by the screw (15) in rotation,
    10 between a first retraction position and a second deployment position on either side of a third retraction position separated from the over-retraction position by a distance corresponding to a rotation of the screw (15) d '' a first angular sector
    15 (Ai);
    an anti-extension device (30) comprising a friction disc (36) free to rotate relative to the screw - (15-) and intended to brake by friction a part (34) integral in rotation with the screw (15 ) when
    20 1 / element, to be moved (5) exerts on the nut (19) a tensile force tending to ; move it to · the second deployment position;
    characterized in that the friction disc (36) comprises at least one smooth surface (40) and an obstacle (41.1,
    25 41.2) formed in the smooth surface (401 for both to collaborate with at least one pawl (42) linked 'to the frame. (8) and thus respectively define at least one second angular sector (As, A3) of free rotation of the friction disc (36) in a predetermined direction (I) and a
    30 blocking position of the friction disc (36) in this predetermined direction (II, the smooth surface (40) having a length such that the amplitude of the first angular sector (Ai) is strictly less than the amplitude of the second angular sector (Aa, A 3 ).
    1.8
    [2]
    2Actuator (1) according to claim 1, wherein the part (34) integral in rotation with the screw (15) comprises a sleeve (33) slidably mounted on the screw (15).
    [3]
    3. Actuator (1) according to claim 2 (, in which the sleeve (33) comprises a straight portion · (33.1) extending coaxially with the rotation area of the screw : (15) and the friction disc - ( 36) is slidably mounted on the
    10 straight portion (33.1) of the sleeve (33).
    [4]
    4. Actuator ’(1) according to one of the preceding claims, in which the anti-extension device (30) comprises a first abutment disc (32) provided with
    15 rollers (32.1) whose axes of rotation extend radially, the first stop disc (32) being mounted to rotate freely around the screw (15).
    [5]
    5. Actuator (1) according to one of claims
    20 above, in which the anti-extension device (30) comprises a biased roller disc (35) mounted to rotate freely around the screw: (15) and provided with rollers (35.1) whose axis of rotation s extends in a · direction, forming a non-zero angle (a) with · a radial direction
    25 passing through one / of the ends: of the roller (35.1), the disc / rotting bias (35) extending between the friction disc (36) and the part (34) integral in rotation with the screw. ,
    30
    [6]
    6. Actuator (1) according to one of the preceding claims, in which the anti-extension device (30) comprises a second stop disc (37) provided with rollers (37.1) whose axes of rotation are extend radially and mounted free to rotate around the screw
    3/5 (15).
    [7]
    7. Actuator (1) according to one of the preceding claims, in which the smooth surface (40) is situated on the periphery of the friction disc (36).
    5 S. Actuator (1) according to one of the preceding claims, wherein the friction disc (36) collaborates with two pawls (42).
    [8]
    9. Thrust reverser (6) comprising an actuator (1) according to any one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    US20200032741A1|2020-01-30|
    EP3593012A1|2020-01-15|
    UA122381C2|2020-10-26|
    CA3055230C|2020-04-07|
    RU2719066C1|2020-04-17|
    CA3055230A1|2018-09-13|
    EP3593012B1|2021-06-30|
    FR3063532B1|2019-04-05|
    CN110382916A|2019-10-25|
    WO2018162260A1|2018-09-13|
    US11181073B2|2021-11-23|
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    US8715132B2|2010-12-31|2014-05-06|Woodward Hrt, Inc.|Linear actuator and method of operation thereof|
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    FR3012532B1|2013-10-24|2015-11-20|Sagem Defense Securite|ACTUATING DEVICE FOR MOVING A MOBILE HOOD FROM A THRUST INVERTER|
    FR3014842B1|2013-12-17|2017-12-01|Sagem Defense Securite|TELESCOPIC ACTUATOR AND AIRCRAFT ENGINE COMPRISING SUCH ACTUATOR|
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    WO2016134746A1|2015-02-24|2016-09-01|Schukra Gerätebau Gmbh|Actuator and method of actuating a latch|
    US20160369877A1|2015-06-17|2016-12-22|Moog Inc.|No-back brake functionality monitor|
    US10422301B2|2015-07-13|2019-09-24|The Boeing Company|Telescoping electrical cable|
    US10054079B2|2016-02-09|2018-08-21|Woodward, Inc.|Thrust reverser actuating|
    EP3228853B1|2016-04-08|2021-03-10|Goodrich Actuation Systems Limited|Thrust reverser actuator|
    US20180058372A1|2016-08-24|2018-03-01|Honeywell International Inc.|Aircraft thrust reverser system with additional reverse thrust grounding path|
    US10406729B2|2016-08-29|2019-09-10|The Boeing Company|Compression molding assembly and methods for molding a thermoplastic blocker door|EP3563075B1|2016-12-30|2022-01-26|Safran Electronics & Defense|Actuator with passive locking|
    WO2019170203A1|2018-03-08|2019-09-12|Linak A/S|Linear actuator|
    DE102018106789A1|2018-03-22|2019-09-26|Dewertokin Gmbh|Electromotive furniture drive|
    法律状态:
    2018-02-19| PLFP| Fee payment|Year of fee payment: 2 |
    2018-09-07| PLSC| Publication of the preliminary search report|Effective date: 20180907 |
    2020-02-20| PLFP| Fee payment|Year of fee payment: 4 |
    2021-02-19| PLFP| Fee payment|Year of fee payment: 5 |
    2022-02-18| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1751773|2017-03-06|
    FR1751773A|FR3063532B1|2017-03-06|2017-03-06|ACTUATOR EQUIPPED WITH A NO BACK SYSTEM WITH INHIBITION AREA|FR1751773A| FR3063532B1|2017-03-06|2017-03-06|ACTUATOR EQUIPPED WITH A NO BACK SYSTEM WITH INHIBITION AREA|
    RU2019131292A| RU2719066C1|2017-03-06|2018-02-23|Drive equipped with “no back” system with locking zone|
    CN201880012620.3A| CN110382916A|2017-03-06|2018-02-23|Equipped with the actuator for the system that cannot return to prohibited area|
    CA3055230A| CA3055230C|2017-03-06|2018-02-23|Actuator equipped with a no back system with inhibition zone|
    US16/490,859| US11181073B2|2017-03-06|2018-02-23|Actuator equipped with a no back system with inhibition zone|
    PCT/EP2018/054575| WO2018162260A1|2017-03-06|2018-02-23|Actuator equipped with a no back system with inhibition zone|
    UAA201910165A| UA122381C2|2017-03-06|2018-02-23|Actuator equipped with a no back system with inhibition zone|
    EP18707699.7A| EP3593012B1|2017-03-06|2018-02-23|Actuator equipped with a no back system with inhibition zone|
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