WO2024256352A1 - Roue a freinage mixte magnetique/friction pour vehicule, atterrisseur d'aeronef et aeronef equipes d'une telle roue - Google Patents
Roue a freinage mixte magnetique/friction pour vehicule, atterrisseur d'aeronef et aeronef equipes d'une telle roue Download PDFInfo
- Publication number
- WO2024256352A1 WO2024256352A1 PCT/EP2024/065982 EP2024065982W WO2024256352A1 WO 2024256352 A1 WO2024256352 A1 WO 2024256352A1 EP 2024065982 W EP2024065982 W EP 2024065982W WO 2024256352 A1 WO2024256352 A1 WO 2024256352A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wheel
- stator
- rotor
- braking
- axis
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
- B60T8/1703—Braking or traction control means specially adapted for particular types of vehicles for aircrafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/748—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on electro-magnetic brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
- B60T8/325—Systems specially adapted for aircraft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
- F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
- F16D55/36—Brakes with a plurality of rotating discs all lying side by side
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
- F16D63/002—Brakes with direct electrical or electro-magnetic actuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
Definitions
- the present invention relates to the field of braking vehicle wheels such as aircraft wheels.
- the invention applies more particularly to mixed magnetic/friction braking devices, i.e. devices in which a magnetic field and mechanical friction are used simultaneously or selectively to produce a braking force.
- An aircraft wheel typically comprises a rim connected by a web to a hub which is mounted for rotation on an axle carried by a lower end of a landing gear.
- the aircraft wheel is traditionally provided with a braking device to slow and immobilize the aircraft when it is on the ground.
- Friction braking devices comprising a stack of brake disks which is housed in a space extending between the rim and the hub and which comprises an alternation of rotor disks linked in rotation to the wheel and stator disks fixed in rotation relative to the axle.
- the braking device also comprises hydraulic or electromechanical actuators mounted on an actuator-carrying ring and arranged to selectively apply a pressing force on the stack of disks so as to brake the rotation of the wheel.
- Eddy current magnetic braking devices are also known, which are used for braking vehicle wheels and more particularly aircraft wheels.
- the magnetic braking device generally comprises a rotor which is attached to the wheel opposite a stator mounted to slide relative to the axle.
- One of the rotor and the stator is provided with magnets while the other of said rotor and said stator is composed of an electrically conductive material.
- the sliding of the stator is generally subject to hydraulic or electromechanical actuators arranged to selectively bring said stator closer to the rotor so as to generate a braking torque on said rotor and thus brake the rotation of the wheel.
- Document FR-A-3122405 describes such a magnetic braking device.
- eddy current braking devices are not subject to wear, which limits their maintenance and the emission of fine particles.
- eddy current braking devices can only be used when the rotor has a certain speed relative to the stator. It therefore seemed sensible to associate the magnetic braking device with a friction braking device to ensure braking at low speed or when parking.
- the invention results from this work and aims to propose a vehicle wheel with mixed braking which at least partially overcomes the aforementioned drawbacks.
- the invention proposes a braked vehicle wheel mounted for rotation on an axle about an axis, comprising: - a first magnetic braking device, comprising a stator and a rotor arranged to produce between them a magnetic flux capable of generating eddy currents producing a first braking torque of the wheel, one of the stator and the rotor being arranged to move along the axis of rotation of the wheel between a position of free rotation of the wheel and a position of braking of the wheel and to be returned to the position of free rotation by elastic return means;
- a second braking device by friction, comprising a stack of disks comprising at least one stator disk and one rotor disk arranged to rub against each other, producing a second braking torque for the wheel, the stack of disks comprising a rear face axially facing the stator or the rotor arranged to move along the axis of rotation of the wheel;
- At least one actuator arranged to exert on a front face of the stack of disks a pressing force sufficient to force the stator disk and the rotor disk to rub against each other and cause the stator or the rotor to move from the free rotation position to the braking position.
- the pressing force exerted by the actuator is thus capable of simultaneously producing the first braking torque and the second braking torque, such that a single control system makes it possible to control both the first braking device and the second braking device.
- the operation and implementation of the wheel braking system are therefore facilitated and simplified, and the overall volume of said braking system is limited.
- the first braking device is radial flow.
- the wheel comprises an annular rim connected by a web to a hub pivotally received on the axle, the rim delimiting with the web and the hub an annular space in which the first braking device and the second braking device extend.
- the elastic return means comprise at least one spring.
- stator disk and the rotor disk are slidably mounted along the axis of rotation of the wheel on a torsion tube fixed to the axle.
- stator is slidably mounted along the axis of rotation of the wheel on the torque tube.
- the stator carries magnets.
- the actuator is a hydraulic actuator.
- the invention also relates to an aircraft landing gear comprising at least one such wheel.
- the invention also relates to an aircraft comprising at least one such landing gear.
- Figure 1 is a simplified representation of an aircraft comprising braked wheels according to a particular embodiment of the invention
- Figure 2 is an axial sectional view of one of the braked wheels of the aircraft illustrated in Figure 1;
- FIG.3 Figure 3 is an exploded view of the wheel shown in Figure 2.
- the invention is described in application to an aircraft A comprising two main landing gears P which each comprise a leg J having a first end articulated on a structure S of the aircraft A and, opposite, a second end carrying wheels 1 rotating about an axis X on a tubular axle E.
- the main landing gears P are here of the retractable type but the invention is applicable to fixed landing gears, or even to another type of vehicle such as a land vehicle.
- the wheels 1 are said to be “braked”, that is to say equipped with a brake intended to selectively slow down and stop the aircraft A when it is on the ground.
- the following description relates to one of the wheels 1 of the aircraft, the wheels 1 here being identical but may also be different.
- the wheel 1 comprises, as illustrated in FIG. 2, an annular rim 2 connected by a web 3 to a hub 4 pivotally received on the axle E by means of bearings (not shown).
- the rim 2 extends opposite the hub 4 and delimits with said hub 4 an annular space having one end at least partially closed by the web 3 and, opposite, an open end.
- the wheel brake 1 comprises a first radial flux magnetic braking device 10 and a second friction braking device 20.
- the first braking device 10 comprises a fixed rotating element, or stator 11, and a mobile rotating element, or rotor 12.
- the stator 11 and the rotor 12 here respectively have the shape of an annular disk and a crown having central axes merged with the axis X of rotation of the wheel 1.
- the rotor 12 has an outer periphery which includes axial peripheral grooves. 12.1 each receiving an end section of a bar 5 fixed on the inner surface of the rim 2 to ensure rotational coupling of the rotor 12 with the rim 2 around the axis X. Screws (not shown) connect the rotor 12 to the end sections of the bars so that said rotor 12 is fixed relative to the wheel 1.
- the crown forming the rotor 12 is made of an electrically conductive material and comprises an internal periphery defining a main surface 12.2 of the rotor 12. This main surface 12.2 is cylindrical in shape and extends coaxially with the wheel 1.
- the stator 11 has an internal periphery which comprises axial peripheral notches 11.1 each receiving a section of a tenon (not shown) or rib which is integral with the external surface of a torque tube 30 fixed to a collar Ei of the axle E to ensure rotational coupling of the stator 11 with the torque tube 30 around the axis X and translational guidance of said stator 11 on the torque tube 30 along said axis X.
- the disk forming the stator 11 comprises an external periphery provided with a series of permanent magnets 11.3 defining a main surface 11.2 of the stator 11.
- This main surface 11.2 is cylindrical in shape and extends coaxially with the wheel 1 so as to be able to be engaged in the main surface 12.2 of the rotor 12.
- the magnets 11.3 are arranged so as to generate eddy currents in the rotor 12 when the main surface 11.2 of the stator 11 and the main surface 12.2 of the rotor 12 are separated by a small air gap and said rotor 12 pivots relative to said stator 11.
- the tenons form slides allowing the stator 11 to slide along the X axis on the torsion tube 30 between a first position called braking (not illustrated) and a second position called free rotation of the wheel 1 (illustrated in FIG. 2) towards which said stator 11 is returned by helical springs 13 equally distributed around the axis X.
- the stator 11 In the braking position, the stator 11 is brought closer to the rotor 12 to the point that the main surface 11.2 of the stator 11 is engaged in the main surface 12.2 of the rotor 12: the main surfaces 11.2, 12.2 are separated from each other by a first predetermined air gap.
- the stator 11 In the free rotation position, the stator 11 is moved away from the rotor 12 to the point that the main surface 11.2 of the stator 11 is clear of the main surface 12.2 of the rotor 12: the main surfaces 11.2, 12.2 are separated from each other by a second predetermined air gap which is greater than the first air gap. It is understood that in the braking position, the magnets 11.3 of the stator 11 generate in the rotor 12 eddy currents sufficient to generate a braking torque on said rotor 12, and that in the free rotation position, this braking torque is negligible, or even non-existent.
- the second braking device 20 comprises, in a manner known per se, brake discs, including stator discs 21.1, 21.2, 21.3 and rotor discs.
- 22.1, 22.2 extend inside the annular space delimited by the wheel 1 and are here made of carbon or steel.
- 21.1, 21.2, 21.3 have an internal periphery comprising axial peripheral notches 21a each receiving a section of the tenons integral with the external surface of the torque tube 30 to ensure rotational coupling of the stator disks 21.1, 21.2, 21.3 with the torque tube 30 around the axis X.
- the stator disks 21.1, 21.2, 21.3 comprise in particular a first stator disk 21.1 and a last stator disc 21.3 between which extend the rotor discs 22.1, 22.2 and the other stator disc 21.2.
- the last stator disk 21.3 comprises a friction front face which is axially opposite the rotor disk 22.2, and a rear face, opposite the front face, which is axially opposite the stator 11 of the first braking device 10. It is understood that the first braking device 10 is arranged between the web 3 of the wheel 1 and the last stator disk 21.3 of the second braking device 20.
- the rotor disks 22.1, 22.2 have an external periphery comprising axial peripheral notches 22a each receiving a section of the bars 5 fixed on the inner surface of the rim 2 to ensure rotational coupling of the rotor disks 22.1, 22.2 with the rim 2 around the axis X.
- the brake further comprises hydraulic actuators 41 (here four in number) which are carried by an actuator-carrying ring 40 fixed to one end of the torque tube 30.
- the actuators 41 are identical to each other and have centers inscribed on the same circle, the center of which is located on the axis X of rotation of the wheel 1.
- Each of the actuators 41 comprises a piston 41.1 received in a cylindrical cavity 40.1 of the actuator-carrying ring 40.
- the cavities 40.1 are distributed equally around the axis X of rotation of the wheel 1.
- the pistons 41.1 are movable in translation along an axis parallel to the axis X of rotation of the wheel 1 to exert on a front face of the first stator disk 21.1 a sufficient pressing force to:
- the equitable distribution of the actuators 41 around the X axis makes it possible to equitably distribute the press forces exerted by the pistons 41.1 on the first stator disc 21.1 and indirectly on the stator 11.
- the first braking torque and the second braking torque are cumulative.
- the second braking device 20 can be used substantially only when necessary, in particular in speed ranges of the wheel 1 where the first braking device 10 is the least effective, or even at energy levels which require the use of both the first braking device 10 and the second braking device 20, for example during a takeoff interruption also called RTO for “Rejected Take Off”.
- the friction of the disks 21.1, 21.2, 21.3, 22.1, 22.2 causes, in a manner known per se, wear of the various friction faces of the stator disks 21.1, 21.2, 21.3 and of the rotor disks 22.1, 22.2, and therefore a reduction in their thickness.
- This wear can be compensated by a commonly used take-up device so that the actuation stroke, and therefore the actuation time, of the pistons 41.1 is identical with each new braking, throughout the use and wear of the disks 21.1, 21.2, 21.3, 22.1, 22.2.
- the rotor 12 can be integrated into the wheel 1.
- the first magnetic braking device 10 is here radial flux (the stator 11 and the rotor 12 have only axial surfaces as main surfaces 11.2, 12.2), it can also be axial flux (the stator 11 and the rotor 12 have only radial surfaces as main surfaces) or combine radial and axial fluxes.
- the magnets 11.3 can be carried by the rotor 12 instead of the stator 11.
- the stator 11 is then made of or covered with an electrically conductive material.
- Magnets can be permanent magnets, electromagnets, or a combination of both.
- stator 11 and the rotor 12 along the X axis are here achieved by sliding said stator 11 on the torque tube 30, it can also be achieved by sliding said rotor 12 on the rim 2.
- the actuator carrier ring 40 can be fixed directly to the axle E.
- the torque tube 30 can be fixed to the actuator carrier ring 40.
- stator discs 21.1, 21.2, 21.3 and the number of rotor discs 22.1, 22.2 may differ from those described and illustrated.
- stator discs 21.1, 21.2, 21.3 and the rotor discs 22.1, 22.2 are here made of carbon or steel, they can be made of any other material suitable for the intended application.
- the number of actuators 41 may be different from that described and illustrated.
- actuators 41 are here carried by the same actuator-carrying ring 40, they can also be carried directly by the torque tube 30.
- actuators 41 are hydraulic here, they can also be electric, pneumatic, etc.
- the pistons 41.1 of the actuators 41 can be replaced by any other equivalent means capable of ensuring this function.
- the helical springs 13 can be replaced by any elastic return means allowing the stator 11 to be returned to a position of free rotation (gas springs, Belleville type washers, etc.).
- the invention can be used on any type of vehicle, air, land or amphibious.
- the invention can be used for applications other than a vehicle and for example for any equipment, industrial or personal, requiring braking.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Braking Arrangements (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24732455.1A EP4724313A1 (fr) | 2023-06-12 | 2024-06-10 | Roue à freinage mixte magnétique/friction pour véhicule, atterrisseur d'aéronef et aéronef équipés d'une telle roue |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2305938A FR3149589A1 (fr) | 2023-06-12 | 2023-06-12 | Roue à freinage mixte magnétique/friction pour véhicule, atterrisseur d’aéronef et aéronef équipés d’une telle roue |
| FR2305938 | 2023-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024256352A1 true WO2024256352A1 (fr) | 2024-12-19 |
Family
ID=88068909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/065982 Ceased WO2024256352A1 (fr) | 2023-06-12 | 2024-06-10 | Roue a freinage mixte magnetique/friction pour vehicule, atterrisseur d'aeronef et aeronef equipes d'une telle roue |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4724313A1 (fr) |
| FR (1) | FR3149589A1 (fr) |
| WO (1) | WO2024256352A1 (fr) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5154623A (en) * | 1989-08-30 | 1992-10-13 | Isuzu Motors Limited | Eddy current type brake system |
| EP1298343A1 (fr) * | 2001-09-03 | 2003-04-02 | Messier-Bugatti | Dispositif de blocage de sécurité pour équipement électromécanique, et frein de roue d'aéronef équipé d'un tel dispositif |
| US20070284939A1 (en) * | 2006-06-12 | 2007-12-13 | Honeywell International | Aircraft electric brake and generator therefor |
| US20110253833A1 (en) * | 2010-02-16 | 2011-10-20 | Alenia Aeronautica S.P.A. | Brake system for aircraft undercarriage |
| CN103821855A (zh) * | 2014-03-11 | 2014-05-28 | 吉林大学 | 带有无励磁式电磁驻车制动装置的集成式电动轮系统 |
| CN104608921A (zh) * | 2015-01-29 | 2015-05-13 | 广州铁路职业技术学院 | 飞机机轮及助降方法 |
| US20200300310A1 (en) * | 2019-03-22 | 2020-09-24 | Aeroflux Braking Systems Inc. | Axially or radially actuated eddy current brake with integrated friction brake |
| CN111900855A (zh) * | 2020-08-11 | 2020-11-06 | 哈尔滨工业大学 | 复合感应盘高速涡流制动器 |
| FR3122405A1 (fr) | 2021-05-03 | 2022-11-04 | Safran Landing Systems | Dispositif de freinage magnétique à courant de Foucault, roue freinée de véhicule et atterrisseur d’aéronef équipé d’une telle roue |
| FR3122404A1 (fr) * | 2021-05-03 | 2022-11-04 | Safran Landing Systems | Dispositif de freinage magnétique à courant de Foucault, roue freinée de véhicule et atterrisseur d’aéronef équipé d’une telle roue |
| FR3123319A1 (fr) * | 2021-05-31 | 2022-12-02 | Safran Landing Systems | Roue à dispositif de freinage magnétique à courant de Foucault, et atterrisseur d’aéronef équipé d’une telle roue |
| FR3125367A1 (fr) * | 2021-07-14 | 2023-01-20 | Safran Landing Systems | Dispositif de freinage magnétique à courant de Foucault, roue freinée de véhicule et atterrisseur d’aéronef équipé d’une telle roue |
-
2023
- 2023-06-12 FR FR2305938A patent/FR3149589A1/fr active Pending
-
2024
- 2024-06-10 WO PCT/EP2024/065982 patent/WO2024256352A1/fr not_active Ceased
- 2024-06-10 EP EP24732455.1A patent/EP4724313A1/fr active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5154623A (en) * | 1989-08-30 | 1992-10-13 | Isuzu Motors Limited | Eddy current type brake system |
| EP1298343A1 (fr) * | 2001-09-03 | 2003-04-02 | Messier-Bugatti | Dispositif de blocage de sécurité pour équipement électromécanique, et frein de roue d'aéronef équipé d'un tel dispositif |
| US20070284939A1 (en) * | 2006-06-12 | 2007-12-13 | Honeywell International | Aircraft electric brake and generator therefor |
| US20110253833A1 (en) * | 2010-02-16 | 2011-10-20 | Alenia Aeronautica S.P.A. | Brake system for aircraft undercarriage |
| CN103821855A (zh) * | 2014-03-11 | 2014-05-28 | 吉林大学 | 带有无励磁式电磁驻车制动装置的集成式电动轮系统 |
| CN104608921A (zh) * | 2015-01-29 | 2015-05-13 | 广州铁路职业技术学院 | 飞机机轮及助降方法 |
| US20200300310A1 (en) * | 2019-03-22 | 2020-09-24 | Aeroflux Braking Systems Inc. | Axially or radially actuated eddy current brake with integrated friction brake |
| CN111900855A (zh) * | 2020-08-11 | 2020-11-06 | 哈尔滨工业大学 | 复合感应盘高速涡流制动器 |
| FR3122405A1 (fr) | 2021-05-03 | 2022-11-04 | Safran Landing Systems | Dispositif de freinage magnétique à courant de Foucault, roue freinée de véhicule et atterrisseur d’aéronef équipé d’une telle roue |
| FR3122404A1 (fr) * | 2021-05-03 | 2022-11-04 | Safran Landing Systems | Dispositif de freinage magnétique à courant de Foucault, roue freinée de véhicule et atterrisseur d’aéronef équipé d’une telle roue |
| FR3123319A1 (fr) * | 2021-05-31 | 2022-12-02 | Safran Landing Systems | Roue à dispositif de freinage magnétique à courant de Foucault, et atterrisseur d’aéronef équipé d’une telle roue |
| FR3125367A1 (fr) * | 2021-07-14 | 2023-01-20 | Safran Landing Systems | Dispositif de freinage magnétique à courant de Foucault, roue freinée de véhicule et atterrisseur d’aéronef équipé d’une telle roue |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3149589A1 (fr) | 2024-12-13 |
| EP4724313A1 (fr) | 2026-04-15 |
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