EP3315790B1 - Servosteuerung, entsprechender rotor und entsprechendes luftfahrzeug - Google Patents

Servosteuerung, entsprechender rotor und entsprechendes luftfahrzeug Download PDF

Info

Publication number
EP3315790B1
EP3315790B1 EP17192728.8A EP17192728A EP3315790B1 EP 3315790 B1 EP3315790 B1 EP 3315790B1 EP 17192728 A EP17192728 A EP 17192728A EP 3315790 B1 EP3315790 B1 EP 3315790B1
Authority
EP
European Patent Office
Prior art keywords
passivation
stop
servocontrol
rod
servocontrol mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17192728.8A
Other languages
English (en)
French (fr)
Other versions
EP3315790A1 (de
Inventor
Clément Coïc
Jean-Romain Bihel
Arnaud Groll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Helicopters SAS
Original Assignee
Airbus Helicopters SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Airbus Helicopters SAS filed Critical Airbus Helicopters SAS
Publication of EP3315790A1 publication Critical patent/EP3315790A1/de
Application granted granted Critical
Publication of EP3315790B1 publication Critical patent/EP3315790B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1476—Special return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/004—Fluid pressure supply failure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/007—Overload
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/863—Control during or prevention of abnormal conditions the abnormal condition being a hydraulic or pneumatic failure
    • F15B2211/8633—Pressure source supply failure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/875—Control measures for coping with failures
    • F15B2211/8752—Emergency operation mode, e.g. fail-safe operation mode

Definitions

  • the present invention relates to a servocontrol, as well as a rotor and an aircraft provided with this servocontrol.
  • an aircraft comprises piloting members referred to for convenience as "maneuvering organ”.
  • the actuators control the movement of the aircraft in space.
  • These actuators may comprise blades of a rotor and in particular a lift rotor of a rotorcraft, or rudders direction or depth for example.
  • control member The actuators of the aircraft are controlled by organs called convenience "control member".
  • the control members are connected to the actuators by control chains.
  • control members may comprise an autopilot system and / or flight controls operated by a pilot.
  • An autopilot system may include a computer controlling at least one jack.
  • the computer controls a slow-acting cylinder and full authority on the control and / or at least one quick-acting cylinder with limited authority.
  • Some aircraft have a support member to amplify the force exerted by a pilot or an autopilot system.
  • hydraulic servocontrols are conventionally used for this purpose, each servocontrol being controlled by the control members.
  • the control devices are thus connected to the hydraulic distributors of the servocontrols.
  • the servocontrols comprise a jack provided with at least one body and a power rod.
  • a single body cylinder is provided with a single body in which moves a piston carried by the power rod.
  • the power rod may include one or more tubes.
  • a multibody cylinder is provided with a plurality of bodies. Each body houses a piston, the pistons being carried by the power rod.
  • a double-body cylinder is commonly used in the aeronautical field. When the servocontrol is provided with several bodies, these bodies are integral with each other.
  • a servo actuator cylinder comprises a subassembly provided with one or more bodies depending on the type of cylinder.
  • this subassembly and the power rod are movable in translation relative to one another.
  • the power rod is articulated at a fixed point in the reference frame of the aircraft, the body subassembly being articulated to a mobile actuator in this frame of reference. From then on, each body slides along the power rod.
  • a servocontrol is called "moving body”.
  • the power rod is articulated to a mobile actuator, the body subassembly being articulated at a fixed point in the aircraft reference system. From then on, the power rod slides along each body.
  • a servocontrol is called "fixed body”.
  • the cylinder of the servo control therefore comprises a movable member and a substantially stationary member to be extended or retracted.
  • each body includes an outer envelope delimiting an internal space. Therefore, each control piston shares the internal space of a body into a retraction chamber and an expansion chamber.
  • retraction chamber means a chamber causing the servo control to retract when said chamber is filled with a hydraulic fluid.
  • expansion chamber designates a chamber causing the extension of the servo control when said chamber is filled with a hydraulic fluid.
  • Such a hydraulic fluid is called more simply fluid later, and can be oil for example.
  • the servo control comprises a hydraulic distributor per body.
  • a hydraulic distributor may comprise at least one movable drawer within a housing.
  • the controls of an aircraft are then arranged to induce a movement of the slide relative to the housing.
  • the spool allows or prevents the flow of fluid through the hydraulic distributor between a hydraulic circuit and the cylinder of the servocontrol.
  • a hydraulic distributor may comprise a single drawer called “main drawer” for convenience.
  • a hydraulic distributor may comprise a main spool movable within a secondary drawer disposed in the housing. Under normal conditions, the main spool is movable relative to the secondary drawer, this secondary drawer being stationary relative to the housing. If the main drawer is jammed in the secondary drawer, the main drawer and the secondary drawer move in conjunction with the slot.
  • each drawer may be movable in translation or rotation relative to the housing.
  • control members therefore make it possible to control the position of at least one drawer in the housing, for example to connect a fluid supply orifice of the housing with a chamber of a body of a servocontrol, and an orifice discharge of the housing fluid with the other chamber of this body.
  • a connecting rod connects the movable member of the cylinder to the housing, in particular with a servocontrol fixed body.
  • the housing of a hydraulic distributor can be attached to a body.
  • the actuator comprises a movable member and a fixed member, namely respectively the body and the power rod on a servocontrol with moving body or respectively the power rod and the bodies on a servocontrol with fixed bodies. Therefore, the servo control comprises multiple dynamic seals arranged between the movable member and the fixed member.
  • a first dynamic seal may be provided on each control piston between the control piston and the body shell. Such a dynamic seal serves to prevent unwanted fluid passage between the retraction chamber and the extension chamber of a body.
  • a second dynamic seal is also arranged between the power rod and each body of the servo.
  • a leak of a second dynamic seal induces a fluid outlet towards the outside of the servocontrol.
  • the leak is detectable by a visual check and induces repair of the servocontrol.
  • a so-called "dormant" failure may then appear in the event of an undetected leakage of a first dynamic seal.
  • a manufacturer can provide for complete maintenance operations performed at regular intervals of time. These maintenance operations consist of disassembling the servocontrols of the aircraft or using specific tools that are complex and difficult to implement. These operations therefore have a significant cost.
  • the invention aims to optimize the detection of a leak of a first dynamic seal. On an aircraft requesting a servo control at a relatively high operating frequency, the joints can wear prematurely and induce many maintenance actions.
  • the document FR 3020038 describes a hydraulic system provided with a servocontrol.
  • This servocontrol comprises a jack allowing a leak between each body and the power rod of the servocontrol. Therefore, the hydraulic system comprises a chamber surrounding the servo control to collect fluid leaking outside this servo.
  • the document FR 2433659 describes a hydraulic system with a main servocontrol.
  • the main servo is controlled by a lever via a secondary servo.
  • the document GB 544793 discloses a servocontrol having a position feedback lever which extends between a power rod of the servocontrol and a hydraulic fluid distribution spool. A rod connected to a double spring cooperates with the position copy lever.
  • the present invention therefore aims to provide an alternative hydraulic system.
  • a servocontrol comprises at least one body as well as a power rod and a control piston arranged in each body, said power rod of the servocontrol being integral with each control piston of the servocontrol, said at least one a body and said power rod respectively forming two power members, said two power members respectively comprising a stationary member which is stationary in a reference frame of the servocontrol and a movable member which is movable in longitudinal translation relative to the stationary member .
  • said at least one body and the power rod respectively form the stationary member and the movable member.
  • said at least one body and the power rod respectively form the movable member and the stationary member.
  • one of the power devices comprises at least one stop member.
  • the organ of power without the stop member carries a passivation actuator which is provided with an enclosure, the passivation actuator comprising a passivation rod which carries a stop and a passivation piston, the passivation piston being arranged mobile in translation longitudinal in the chamber, an elastic system being arranged between the passivation piston and the enclosure to tend to maintain the passivation rod in a neutral position, the stop being arranged outside the chamber and facing longitudinally of each member of stop to be able to come into contact with each stop member in case of failure.
  • the passivation piston and the enclosure may take the form of a jack.
  • the servocontrol is then provided with a jack comprising each body and the power rod.
  • the servo control further comprises a main hydraulic distributor body connected to the body, and adapted to be connected to a main hydraulic circuit.
  • Each main hydraulic distributor may be a hydraulic distributor of the type described above.
  • the jack may be a high performance cylinder without the dynamic joints of some prior art.
  • Such a jack is described as "high performance" insofar as the cylinder can be loaded at high operating frequencies since this cylinder does not have dynamic seals may degrade.
  • the servo control is further provided with a passivation actuator.
  • a first so-called "hard-over" failure in the English language induces the generation of an undue set point that can cause the jack to expand at a high speed, and finally an end stop of the high speed cylinder.
  • the resulting shock is potentially destructive.
  • a second fault relates to the malfunction of the hydraulic circuit connected to the servocontrol. In the absence of hydraulic fluid, the servocontrol no longer assists a pilot.
  • a passivation actuator comprising a stop adapted to cooperate with a stop member of the movable member can reduce the impact of these failures.
  • a damping function can also be activated in order to dissipate some of the kinetic energy.
  • the stop can be brought into contact against an abutment member to move the movable member in a predetermined position for the rest of the flight.
  • the invention can make it possible to obtain a servocontrol having a robust high-performance jack with regard to certain failures that may occur.
  • the servo control may further include one or more of the following features.
  • the stop member may comprise a first stop face and a second stop face disposed longitudinally on either side of the stop and facing one another.
  • a stop face can be requested in case of "hard over”, and the other stop face can be requested in case of failure of the hydraulic circuit connected to the cylinder.
  • the power member provided with the stop member may comprise a first shoulder provided with the first abutment face and a second shoulder provided with the second abutment face, the first shoulder and the second shoulder being separated. longitudinally by a space in which said stop is arranged.
  • first shoulder and the second shoulder are carried by the power rod in the context of the first variant fixed body.
  • the shoulders are for example carried by a body, or by a rod integral with a body, or even by a fastener secured to the body and provided with a hinge.
  • first abutment face can be separated longitudinally from the second abutment face by a length greater than a predetermined displacement range of the movable member out of case of failure.
  • the movable member can be moved without contact between the stop and an abutment member.
  • the movable member of the servo controller can move about plus or minus 10 (ten) millimeters from a center. By cons, said length may extend over 15 (fifteen) millimeters, the first abutment face and the second abutment face being located equidistant from said center out of failure case.
  • the potential stroke of the movable member may for example be about plus or minus 20 (twenty) millimeters from the center, due to the freedom of displacement in translation of the stop.
  • the elastic system may comprise two elastic members disposed longitudinally on either side of the passivation piston.
  • Each elastic member tends to place the passivation piston, and therefore the stopper, in a predetermined position to reach out of case of failure.
  • Each elastic member may comprise for example at least one spring possibly with low stiffnesses, or at least one block of elastic material such as a material of the group of elastomers.
  • said stop is separated from the power member provided with each stop member by a transverse play so as not to hinder the movement of the movable member out of case of failure.
  • This transverse clearance can be described as "radial" when the stopper describes a ring delimiting a disk-shaped orifice which surrounds the power member provided with each stop member. An annular space then radially separates the abutment and the power member provided with each stop member.
  • Such a game can tend to generate no friction with the movable member and no centering action, except in case of failure.
  • the passivation piston and the passivation rod and the stop are each of annular shape and extend radially about an axis coincident with a longitudinal axis along which moves the movable member and extends the rod power.
  • This proposal comprises a cylindrical actuator which reduces the overall size of the servocontrol, due to the moderate increase in the diameter of a body carrying this passivation actuator with regard to prior arts.
  • no sealing means can be arranged between the control piston and the corresponding body and between the power rod and each body.
  • the cylinder is then a high performance cylinder.
  • At least one sealing means being arranged between said enclosure and the passivation piston.
  • This passivation actuator may optionally have at least one dynamic seal between the passivation rod and the enclosure so that the enclosure is sealed, and at least one dynamic seal between the enclosure and the passivation piston .
  • the enclosure may be attached to at least one body.
  • the passivation actuator comprises a damper that damps a longitudinal displacement of the passivation rod.
  • Each seal attached to the passivation rod or the passivation piston may eventually provide damping.
  • the damper comprises at least one rolling orifice connecting the passivation expansion chamber to the shrinkage chamber. passivation.
  • each control piston may separate a control retraction chamber and a control extension chamber formed in a body, the servo control comprising a main hydraulic distributor configured to be in fluid communication with a main hydraulic circuit as well as with the control retraction chamber and the control extension chamber.
  • the servo control includes a hydraulic distributor called "secondary hydraulic distributor" configured to be in fluid communication with a secondary hydraulic circuit as well as with the passivation shrink chamber and the passivation expansion chamber.
  • the secondary hydraulic distributor has a spool configured to be controlled by the hydraulic circuit main, the drawer being in a rest position when the main hydraulic circuit is supplied with hydraulic fluid and in a passivation position when the main hydraulic circuit is not supplied with fluid, the drawer does not put in fluidic communication the hydraulic circuit secondary and the passivation actuator in the idle position, the spool being configured to fluidly connect a secondary supply hydraulic connection of the secondary hydraulic circuit and the passivation extension chamber and to fluidically communicate a hydraulic connection secondary fluidic return circuit of the secondary hydraulic circuit and the passivation shrink chamber to move the passivation rod and the power rod into an end position.
  • drawer designates a movable element for closing or opening "fluidically" the secondary hydraulic distributor.
  • the operating method of the servo control is as follows.
  • the passivation actuator is centered by the elastic system.
  • the movable member of the actuator cylinder can operate in its nominal stroke without being obstructed by the stop.
  • the servo can include a single body.
  • the invention is directed to a rotor provided with a plurality of blades.
  • This rotor then comprises a servocontrol of the type described above, the servocontrol being mechanically connected to each blade.
  • the rotor comprises a set of cyclic plates connected to each blade by a pitch rod.
  • the servocontrol is articulated to said set of cyclic trays.
  • the invention also relates to an aircraft comprising at least one servocontrol of the type described above.
  • the aircraft can comprise such a servocontrol in a rotor of the type described above, or even to maneuver secondary control surfaces drift type, empennage ...
  • the first direction X is called longitudinal.
  • the term "longitudinal" relates to any direction parallel to the first direction X.
  • the second direction Y and the third direction Z are said to be transverse.
  • the term “transversal” and the term “radial” are relative to any direction contained in the plane YZ.
  • the figure 1 presents an aircraft 1 according to the invention partially represented.
  • This aircraft is equipped with a hydraulic system according to a first variant for controlling actuators of this aircraft.
  • the aircraft 1 comprises a rotor 2 carrying a plurality of blades 4.
  • This rotor 2 is for example provided with a hub 3 carrying the blades 4.
  • the hub 3 is then driven in rotation by a box of power transmission via a rotor mast 5.
  • the hydraulic system acts on the pitch control of the blades 4 of the rotor 2.
  • Such a rotor 2 may be a so-called rotor "main rotor” which at least partially ensures the lift or propulsion of the aircraft.
  • This rotor 2 can also be a so-called rotor “rear rotor” participating in controlling the yaw movement of the aircraft.
  • the invention applies to all types of actuators of an aircraft.
  • the hydraulic system comprises at least one servocontrol 20.
  • this hydraulic system comprises three or four servocontrols 20 connected to non-illustrated flight controls of the aircraft.
  • all the servocontrols of the hydraulic system are servocontrols 20 according to the invention.
  • each servocontrol 20 is for example hinged directly, or at least one connecting rod, to a set 6 of cyclic trays or equivalent.
  • Such a set 6 of cyclic plates comprises a non-rotating plate 7 hinged to a fixed compass 11.
  • the set 6 of cyclic trays includes a turntable 8 which is articulated to a rotating compass not shown. This compass is said to "turn” since integral rotation of the rotor mast 5 for example.
  • the turntable 8 is further connected to each blade 4 by a pitch rod 9.
  • non-rotating plate 7 and the turntable 8 are arranged on a ball joint 10 which slides parallel to the rotor mast 5.
  • each servocontrol 20 comprises a jack 22 which is articulated to the set 6 of cyclic trays.
  • This jack 22 may be a high performance cylinder may have hydraulic leaks. Therefore, the hydraulic system may comprise at least one casing 90 to circumscribe the leakage of hydraulic fluid outside of at least one servocontrol 20 according to the invention. At least one servocontrol is arranged at least partially in a casing 90.
  • all the actuating servocontrols of an organ are arranged at least partially in an envelope 90.
  • the envelope 90 may be of the type described in the document FR 3020038 .
  • the servocontrol comprises a jack 22.
  • the jack 22 of a servocontrol 20 comprises a power rod 30 passing through at least one body 25.
  • This power rod 30 carries a control piston 35 per body.
  • Each control piston 35 can slide longitudinally within the corresponding body.
  • Each body 25 and the power rod 30 associated with each control piston respectively form two separate power members 200 which slide relative to each other.
  • These two power members 200 respectively represent a stationary member 202 which is stationary in a reference frame of the servocontrol 20 and a movable member 201 which is movable in longitudinal translation with respect to the stationary member 202.
  • each body 25 and the power rod 30 respectively belong to a stationary member 202 and to a movable member 201, where each body 25 and the power rod 30 respectively belong to a movable member 201 and to a stationary member 202.
  • the figure 2 thus illustrates a single-body fixed-body servocontrol.
  • the servo can include at least one body, and be fixed body (s) or mobile (s).
  • each control piston 35 shares an internal cavity of a body into a control extension chamber 26 and a control retraction chamber 27.
  • the control extension chamber 26 and the control chamber control retraction 27 are in fluid communication with a main hydraulic distributor 75.
  • This main hydraulic distributor 75 may be integral with the cylinder 22, for example a body. In the presence of several bodies, each body can cooperate with its own main hydraulic distributor.
  • the main hydraulic distributor 75 is further connected to a main hydraulic circuit 70.
  • This main hydraulic circuit 70 may comprise a main supply hydraulic connection 71 for conveying a fluid 23 to the main hydraulic distributor 75.
  • This main hydraulic circuit 70 may also have a main fluid return hydraulic connection 72 to extract a fluid 23 from the main hydraulic distributor 75.
  • flight controls 77 connected to the first spool 76 make it possible to control the main hydraulic distributor 75.
  • This main hydraulic distributor 75 then injects on request a fluid 23 into the extension chambers of the jack to extend this jack, or in the chambers retraction of the jack to retract this jack.
  • an on-off valve 73 is arranged on the main hydraulic circuit 70 upstream of the main hydraulic distributor 75.
  • the term "upstream" is to be considered with regard to the direction of routing of the fluid 23 to the main hydraulic distributor 75.
  • the cylinder 22 may have a fluid leak, possibly mastered and predefined.
  • a servocontrol is thus a controlled leakage servocontrol, and can not be likened to a servocontrol having an accidental leak resulting from the wear of joints, for example.
  • no sealing means is for example arranged between the control piston 35 and the corresponding body and between the power rod 30 and each body 25.
  • the jack 22 may comprise a main leakage control means 37 mastered at each interface between a power rod and a body, possibly in particular to prevent the penetration of external particles into the jack 22.
  • This master leakage main means 37 allows a leakage of the fluid contained in a body towards the outside of the cylinder of the servocontrol.
  • Secondary means 36 with controlled leakage can be arranged between at least one body 25 and the control piston 35 sliding in this body. Such secondary means 36 then allows leakage of a hydraulic fluid between the control retraction chamber 27 and the control extension chamber 26 of this body 25.
  • At least one controlled leakage means may comprise a hydrodynamic bearing, or expansion segments.
  • one of the two power members 200 carries at least one stop member 40 and the other power member carries a passivation actuator 50 cooperating with the stop member.
  • the power rod 30 carries the abutment member 40 and a body 25 carries the passivation actuator 50.
  • the passivation actuator 50 is provided with an enclosure 52.
  • the enclosure 52 may be fixed to the movable member 201 or the stationary member 202 of the cylinder 22.
  • the enclosure 52 is attached to at least one body 25.
  • the passivation actuator 50 comprises a passivation rod 56.
  • the passivation rod 56 carries on the one hand a stop 57 which is located outside the enclosure and, on the other hand, a passivation piston 55 movable in longitudinal translation in the chamber 52. Therefore, the passivation rod 56 extends at least longitudinally between the stop 57 and the passivation piston 55.
  • the passivation piston 55 as well as the passivation rod 56 and the stopper 57 may each have annular shapes extending radially about an axis AX.
  • This axis AX is for example merged with a longitudinal axis X along which moves the movable member 201 of the jack 22, and along which extends the power rod 30.
  • the passivation rod 56 takes the form of a hollow cylinder with a circular base.
  • the passivation piston 55 may take the form of a hollow cylinder with a circular base, but thicker than the passivation rod 56 to project radially from the passivation rod.
  • the stop may take the form of an annular disc projecting radially towards the power member provided with the abutment member 40.
  • the stop 57 is separated from the power member 200 provided with each stop member 40 by a transverse clearance 301.
  • the passivation piston 55 can share a recess of the enclosure 52 into a passivation shrink chamber 54 and a passivation extension chamber 53.
  • the passivation shrink chamber 54 and the expansion chamber passivation 53 are filled with a fluid.
  • a first dynamic seal 59 can thus be arranged at each interface between the passivation rod 56 and the enclosure 52.
  • each first dynamic seal 59 can be fixed to the enclosure 52.
  • a second dynamic seal 58 can be arranged between the enclosure 52 and the passivation piston 55.
  • the second dynamic seal 58 can be attached to a slice of the passivation piston 55.
  • the servocontrol 20 may comprise a secondary hydraulic distributor 85.
  • This secondary hydraulic distributor 85 may be integral with the cylinder 22, for example a body or the passivation actuator.
  • This secondary hydraulic distributor 85 is in fluid communication with a secondary hydraulic circuit 80.
  • This secondary hydraulic circuit 80 may comprise a secondary supply hydraulic connection 81 for conveying a fluid 24 to the secondary hydraulic distributor 85.
  • This circuit secondary hydraulic 80 may also include a secondary hydraulic fluid return connection 82 for extracting a fluid 4 from the secondary hydraulic distributor 80.
  • the secondary hydraulic circuit 80 may represent the main hydraulic circuit of a bodies.
  • the secondary hydraulic distributor 85 is in fluid communication as well as the passivation shrinkage chamber 54 and the passivation extension chamber 53.
  • the slide 86 can be controlled by the main hydraulic circuit. Therefore, the slide can extend between a buffer tank 87, connected to the main hydraulic power supply 71, and an elastic member 88.
  • an elastic system 60 is arranged between the passivation piston 55 and the enclosure 52, to tend to maintain the passivation rod 56 in the neutral position POS1 illustrated on the figure 2 .
  • This elastic system 60 may be provided with two elastic members 61, 62 arranged longitudinally on either side of the passivation piston 55.
  • the passivation actuator 50 may comprise a damper 65 which damps a longitudinal displacement of the passivation rod 56.
  • This damper 65 comprises for example at least one rolling orifice 66 placing in fluid communication the expansion chamber from passivation 53 to the passivation shrink chamber 54.
  • the stop 57 is carried by the passivation rod 56.
  • the stop 57 is arranged outside the enclosure 52.
  • the stop 57 is facing longitudinally of each stop member 40 to be able to come into contact. with each stop member 40 in case of failure.
  • the stop member 40 may comprise a first stop face 41 and a second stop face 42.
  • the first stop face 41 and the second stop face 42 are arranged longitudinally on either side of the stop. stop 57 and facing one another.
  • the first abutment face 41 and the second abutment face 42 may be parallel to at least one face of the abutment.
  • the power member 20 provided with the abutment member 40 comprises a first shoulder 43 provided with the first abutment face 41 and a second shoulder 44 provided with the second abutment face 42.
  • the first shoulder 43 and the second shoulder 44 are separated longitudinally by a space 45 in which the stop 57 is positioned.
  • the first shoulder 43 and the second shoulder 44 are carried by the power rod 30.
  • first abutment face 41 can be separated longitudinally from the second abutment face 42 by a length 300 greater than a predetermined displacement range of the movable member 201 out of case of failure.
  • the main supply hydraulic connection 71 feeds the buffer tank 87.
  • the fluid contained in the buffer tank 87 then exerts pressure on the slide 86 to keep the slide in the idle position POS3.
  • the passivation rod 56 is then in a neutral position POS1.
  • the pressure drops in the buffer tank 87.
  • the elastic member 88 then moves the drawer in its POS4 passivation position according to the arrow 102.
  • the passivation extension chamber 53 then fills with fluid, which induces a displacement along the arrow 103 of the passivation rod 56 in an extreme position POS2 extended.
  • the stop 57 comes into contact with the abutment member 40, and in particular its second abutment face 42.
  • the abutment 57 causes the extension of the actuator 22, and keeps the actuator 22 in this position.
  • the servocontrol is favorably a single-body and fixed-body servocontrol, namely a servocontrol comprising a jack provided with a single body.
  • the servo can include at least one body, and be fixed body (s) or mobile (s).
  • the figure 4 presents a servocontrol comprising a jack provided with two fixed bodies.
  • the enclosure of the passivation actuator 50 is secured to a body and cooperates with an abutment member fixed to the power rod 30.
  • the figure 5 presents a servo control comprising a jack provided with a single movable body.
  • the enclosure of the passivation actuator 50 is secured to a body and cooperates with an abutment member 40 fixed to the power rod 30.
  • the figure 6 presents a servo control comprising a jack provided with two movable bodies.
  • the enclosure of the passivation actuator 50 is secured to the power rod 30 and cooperates with an abutment member 40 fixed to a body.
  • the figure 7 presents a servo control comprising a jack provided with a single movable body.
  • the enclosure of the passivation actuator 50 is secured to the power rod 30 and cooperates with an abutment member 40 fixed to a body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Actuator (AREA)
  • Transmission Devices (AREA)

Claims (17)

  1. Servosteuerung (20), die mindestens einen Körper (25) sowie in jedem Körper (25) eine Schubstange (30) und einen Steuerkolben (35) umfasst, wobei die Schubstange (30) der Servosteuerung (20) mit jedem Steuerkolben (35) der Servosteuerung (20) fest verbunden ist,
    wobei der mindestens eine Körper (25) und die Schubstange (30) jeweils zwei Schubelemente (200) bilden, wobei die beiden Schubelemente (200) jeweils ein feststehendes Element (202), das in einem Bezugsrahmen der Servosteuerung (20) feststehend ist, und ein bewegliches Element (201) umfassen, das in Längsrichtung in Bezug auf das feststehende Element (202) beweglich ist, eines der Schubelemente (200) mindestens ein Anschlagelement (40) trägt und das Schubelement, das kein Anschlagelement (40) trägt, ein Passivierungsstellglied (50) trägt, das mit einem Gehäuse (52) versehen ist, wobei das Passivierungsstellglied (50) eine Passivierungsstange (56), die einen Anschlag (57) trägt, und einen Passivierungskolben (55) umfasst, wobei der Passivierungskolben (55) in Längsrichtung in dem Gehäuse (52) beweglich angeordnet ist, wobei ein elastisches System (60) zwischen dem Passivierungskolben (55) und dem Gehäuse (52) angeordnet ist, um dazu zu neigen, die Passivierungsstange (56) in einer neutralen Position (POS1) zu halten, wobei der Anschlag (57) außerhalb des Gehäuses (52) und in Längsrichtung gegenüber jedem Anschlagelement (40) angeordnet ist, um im Falle einer Störung jedes Anschlagelement (40) kontaktieren zu können,
    dadurch gekennzeichnet, dass das Passivierungsstellglied (50) einen Dämpfer (65) umfasst, der eine Längsverschiebung der Passivierungsstange (56) dämpft, wobei der Passivierungskolben (55) eine Passivierungsrückzugskammer (54) und eine Passivierungsausstreckkammer (53) trennt, die im Gehäuse (52) gebildet und mit Fluid gefüllt sind, und der Dämpfer (65) mindestens eine Laminieröffnung (66) aufweist, die die Passivierungsausstrecckammer (53) mit der Passivierungsrückzugskammer (54) verbindet.
  2. Servosteuerung nach Anspruch 1, dadurch gekennzeichnet, dass der mindestens eine Körper (25) und die Schubstange (30) jeweils das feststehende Element (202) und das bewegliche Element (201) bilden, oder dass der mindestens eine Körper (25) und die Schubstange (30) jeweils das bewegliche Element (201) und das feststehende Element (202) bilden.
  3. Servosteuerung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass das Anschlagelement (40) eine erste Anschlagfläche (41) und eine zweite Anschlagfläche (42) aufweist, die in Längsrichtung auf beiden Seiten des Anschlags (57) angeordnet und einander zugewandt sind.
  4. Servosteuerung nach Anspruch 3, dadurch gekennzeichnet, dass das mit dem Anschlagelement (40) versehene Schubelement (200) eine erste Schulter (43), die mit der ersten Anschlagfläche (41) versehen ist, und eine zweite Schulter (44) aufweist, die mit der zweiten Anschlagfläche (42) versehen ist, wobei die erste Schulter (43) und die zweite Schulter (44) in Längsrichtung durch einen Raum (45) getrennt sind, in dem der Anschlag (57) angeordnet ist.
  5. Servosteuerung nach Anspruch 4, dadurch gekennzeichnet, dass die erste Schulter (43) und die zweite Schulter (44) von der Schubstange (30) getragen sind.
  6. Servosteuerung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass die erste Anschlagfläche (41) außer im Falle einer Störung von der zweiten Anschlagfläche (42) in Längsrichtung um eine Länge (300) getrennt ist, die größer ist als ein vorgegebener Verschiebebereich des beweglichen Elements (201).
  7. Servosteuerung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das elastische System (60) zwei elastische Elemente (61, 62) umfasst, die in Längsrichtung auf beiden Seiten des Passivierungskolbens (55) angeordnet sind.
  8. Servosteuerung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Anschlag (57) von dem mit jedem Anschlagelement (40) versehenen Schubelement (200) durch ein Querspiel (301) getrennt ist, um die Bewegung des beweglichen Elements (201) außer im Falle einer Störung nicht zu behindern.
  9. Servosteuerung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Passivierungskolben (55) sowie die Passivierungsstange (56) und der Anschlag (57) jeweils ringförmig ausgebildet sind und sich radial um eine Achse (AX) erstrecken, die mit einer Längsachse (X) übereinfällt, entlang derer sich das bewegliche Element (201) bewegt und sich die Schubstange (30) erstreckt.
  10. Servosteuerung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass keine Dichtungsmittel zwischen dem Steuerkolben (35) und dem entsprechenden Körper sowie zwischen der Schubstange (30) und jedem Körper (25) vorgesehen sind.
  11. Servosteuerung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Gehäuse (52) abgedichtet ist, wobei mindestens ein Dichtungsmittel (58) zwischen dem Gehäuse (52) und dem Passivierungskolben (55) angeordnet ist.
  12. Servosteuerung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Gehäuse (52) an mindestens einem Körper (25) befestigt ist.
  13. Servosteuerung nach einem der Ansprüche 1 bis 12,
    dadurch gekennzeichnet, dass jeder Steuerkolben (35) eine Steuerrückzugskammer (27) und eine Steuerausstreckkammer (26) trennt, die in einem Körper gebildet sind, wobei die Servosteuerung (20) einen Haupthydraulikverteiler (75) umfasst, der konfiguriert ist, um in Fluidverbindung mit einem Haupthydraulikkreis (70) sowie mit der Steuerrückzugskammer (27) und der Steuerausstreckkammer (26) zu stehen, die Servosteuerung einen sekundären Hydraulikverteiler (85) umfasst, der konfiguriert ist, um in Fluidverbindung mit einem sekundären Hydraulickreis (80) sowie mit der Passivierungsrückzugskammer (54) und der Passivierungsausstreckkammer (53) zu stehen, wobei der sekundäre Hydraulikverteiler (85) ein Ventil (86) aufweist, das konfiguriert ist, um durch den Haupthydraulikkreis (70) gesteuert zu werden, wobei sich das Ventil (86) in einer Ruheposition (POS3) befindet, wenn der Haupthydraulikkreis (70) mit Fluid versorgt wird, und sich in einer Passivierungsposition (POS4) befindet, wenn der Haupthydraulikkreis (70) nicht mit Fluid versorgt wird, wobei das Ventil (86) in der Ruheposition (POS3) den sekundären Hydraulikkreis (80) und den Passivierungsantrieb (50) nicht in Fluidverbindung bringt,
    wobei das Ventil (86) konfiguriert ist, um einen sekundären Hydraulikfluidversorgungsanschluss (81) des sekundären Hydraulikkreises (80) und die Passivierungsausstreckkammer (53) fluidisch zu verbinden und einen sekundären Fluidrücklaufhydraulikanschluss (82) des sekundären Hydraulikkreises (80) und die Passivierungsrückzugskammer (54) fluidisch zu verbinden, um die Passivierungsstange (56) und die Schubstange (30) in eine Endstellung zu bewegen.
  14. Servosteuerung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass sie einen einzigen Körper aufweist.
  15. Rotor (2) mit einer Mehrzahl von Blättern (4), dadurch gekennzeichnet, dass der Rotor (2) mindestens eine Servosteuerung nach einem der Ansprüche 1 bis 14 aufweist, wobei die Servosteuerung mechanisch mit jedem Blatt (4) verbunden ist.
  16. Rotor nach Anspruch 15, dadurch gekennzeichnet, dass der Rotor (2) einen Satz von Taumelscheiben (6) umfasst, die mit jedem Blatt (4) durch eine Neigungsstange (9) verbunden sind, wobei die Servosteuerung (20) an dem Satz von Taumelscheiben (6) angelenkt ist.
  17. Luftfahrzeug (1), dadurch gekennzeichnet, dass das Luftfahrzeug (1) mindestens eine Servosteuerung (2) nach einem der Ansprüche 1 bis 14 aufweist.
EP17192728.8A 2016-10-31 2017-09-22 Servosteuerung, entsprechender rotor und entsprechendes luftfahrzeug Active EP3315790B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1601560A FR3058191B1 (fr) 2016-10-31 2016-10-31 Servocommande, rotor et aeronef associes

Publications (2)

Publication Number Publication Date
EP3315790A1 EP3315790A1 (de) 2018-05-02
EP3315790B1 true EP3315790B1 (de) 2019-04-24

Family

ID=58347423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17192728.8A Active EP3315790B1 (de) 2016-10-31 2017-09-22 Servosteuerung, entsprechender rotor und entsprechendes luftfahrzeug

Country Status (3)

Country Link
EP (1) EP3315790B1 (de)
CA (1) CA2980299C (de)
FR (1) FR3058191B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116696890B (zh) * 2023-08-08 2024-04-30 浙江美科斯进出口有限公司 一种四向叉车转向油缸

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB544793A (en) * 1941-02-01 1942-04-28 Edward Dodson Improvements in fluid operated means for controlling apparatus at a distance
GB1230691A (de) * 1968-05-27 1971-05-05
DE102004045011B4 (de) * 2004-09-16 2008-09-25 Liebherr-Aerospace Lindenberg Gmbh Kolbenzylindereinheit
FR3020038A1 (fr) * 2014-04-18 2015-10-23 Airbus Helicopters Systeme hydraulique d'aeronef comprenant au moins une servocommande, rotor et aeronef associes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CA2980299C (fr) 2019-03-12
FR3058191B1 (fr) 2019-12-13
EP3315790A1 (de) 2018-05-02
CA2980299A1 (fr) 2018-04-30
FR3058191A1 (fr) 2018-05-04

Similar Documents

Publication Publication Date Title
US10279894B2 (en) Vortex generator arrangement, flow control system and method for controlling a flow on a rudder surface
EP1571080A1 (de) Aufhängevorrichtung eines Flugzeugtriebwerks an einem Flügelpylon
EP2933186B1 (de) Hydraulisches system eines luftfahrzeugs, das mindestens eine servosteuerung umfasst, sowie entsprechender rotor und entsprechendes luftfahrzeug
FR2992696A1 (fr) Distributeur hydraulique, dispositif de reglage du pas de pales, aeronef muni d'un tel distributeur hydraulique
EP3315790B1 (de) Servosteuerung, entsprechender rotor und entsprechendes luftfahrzeug
EP2930375A1 (de) Ausgleichsschieber der flüssigkeitszufuhr zu den zylinderkörpern einer servosteuerung, die die blätter des rotors eines drehflügelflugzeugs steuern
WO2022189746A1 (fr) Dispositif de calage de pas de pales pour turbomachine et turbomachine le comportant
EP2766612B1 (de) Zweistufiges servoventil und geeignete regelstufe für ein solches servoventil
EP3308026A1 (de) Hydrauliksystem mit entwässerter kammer
EP1995472B1 (de) Mit einer Verschleißwarnungsvorrichtung ausgestatteter Hydraulikverteiler
EP3501980B1 (de) Rotor mit kollektiver blattverstellung, und luftfahrzeug
EP3443266A1 (de) Verbesserte injektoren für eine gasturbinenbrennkammer
EP0359623B1 (de) Hochharmonische Blattverstellungsteuervorrichtung eines Drehflügelflugzeuges
EP3042847B1 (de) Servosteuerung und luftfahrzeug, das mit einer solchen servosteuerung ausgestattet ist
CA2812691C (fr) Dispositif hydraulique d'un dispositif de commande tel qu'un dispositif de changement de pas d'helice
FR2964945A1 (fr) Helice et systeme d'helices contrarotatives comprenant des moyens ameliores de limitation du calage, et turbomachine les comprenant
EP3017210B1 (de) Bremsvorrichtung mit einem kolben mit vollständiger rückstossfunktion
EP2410188B1 (de) Servobetätiger mit maximalkraftmessgerät
FR3054619A1 (fr) Servocommande a stabilisation integree au distributeur pour les commandes de vol d'un aeronef
FR2981684A1 (fr) Systeme de commande d'incidence de pale de turbomachine et turbomachine
FR2961566A1 (fr) Actionneur a verin d'un organe mobile dans une turbomachine
KR102034688B1 (ko) 서보컨트롤, 연관된 로터 및 항공기
FR3056650B1 (fr) Procede de detection de fuite d'une servocommande, et aeronef associe
EP3421311B1 (de) Notbremsvorrichtung mit variablem drehmoment
EP0585189B1 (de) Hydraulisches Hochleistungsstellglied mit Spielregelung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180629

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F15B 9/10 20060101AFI20181030BHEP

Ipc: F15B 20/00 20060101ALI20181030BHEP

Ipc: F15B 15/14 20060101ALI20181030BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20181206

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1124486

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190515

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602017003493

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190424

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190724

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190724

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190725

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1124486

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190824

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602017003493

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

26N No opposition filed

Effective date: 20200127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190922

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190922

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200930

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190424

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20220920

Year of fee payment: 6

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230928

Year of fee payment: 7

Ref country code: DE

Payment date: 20230920

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230927

Year of fee payment: 7

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230922