Braking device having mutually connected non-adjacent hydraulic actuators, a braked wheel, a landing gear and an aircraft provided with such a device

Abstract

The invention relates to a braking device (1) for a vehicle wheel (103), the braking device (1) comprising a stack of discs (2) including at least one rotor disc (21) and one stator disc (2.2), and an actuating assembly (5) for exerting a pressing force on the stack of discs (2), the actuating assembly (5) comprising an actuator carrier crown (6) coaxial with the stack of discs (2), hydraulic actuators (7) mounted side by side on the actuator carrier crown (6), and a hydraulic circuit (8) for connecting the actuators (7) to at least one hydraulic supply source (9), the hydraulic circuit (8) comprising at least two first sections (10) for connecting two of the actuators (7), referred to as head actuators, to the supply source (9), and second sections (11) connecting the actuators (7) in pairs so that the hydraulic circuit (8) supplies all the actuators (7), the actuators (7) of each pair of actuators (7) connected to one another by one of the second sections (11) being non-adjacent to one another.

Description

[0001] BRAKING DEVICE HAVING NON-ADJACKET HYDRAULIC ACTUATORS LINKED TO EACH OTHER, BRAKED WHEEL, LANDING AIRCRAFT AND AIRCRAFT EQUIPPED WITH SUCH A DEVICE.

[0002] The present invention relates to the field of braking of vehicle wheels such as aircraft wheels.

[0003] BACKGROUND OF THE INVENTION

[0004] An aircraft generally includes landing gear having one end connected to the aircraft fuselage and one end fitted with a shaft on which a wheel fitted with a braking device is pivotally mounted.

[0005] The braking device includes at least one stack of discs (including rotor discs rotationally linked to the wheel and stator discs rotationally linked to the shaft), an actuator-carrying ring rotationally linked to the shaft, and actuators mounted in the actuator-carrying ring to exert a pressing force on the stack of discs and thus generate a braking torque on the wheel.

[0006] It is common for the actuators to be linear hydraulic actuators supplied with hydraulic pressure by a power source, usually a pump. These actuators are generally connected in series to the power source by conduits, allowing them to be actuated simultaneously.

[0007] A schematic representation of such a device is shown in Figure 1. The device comprises six actuators distributed into two groups of adjunct actuators A1, A2, A3, hydraulically connected in series by a hydraulic circuit, namely a first actuator A1 connected to the power source by a first section of hydraulic circuit, a second actuator A2 connected by a second section of hydraulic circuit to the first actuator A1, a third actuator A3 connected to the second actuator A2 by a third section of hydraulic circuit. It appears that the actuation of the braking device causes significant vibrations.

[0008] SUBJECT OF THE INVENTION

[0009] The invention aims in particular to improve the system mentioned above in order to reduce vibrations during braking.

[0010] SUMMARY OF THE INVENTION

[0011] For this purpose, the invention provides a vehicle wheel braking device comprising a stack of discs, including at least one rotor disc and one stator disc, and an actuation assembly for exerting a pressing force on the stack of discs, the actuation assembly comprising an actuator-carrying ring coaxial with the stack of discs, hydraulic actuators mounted side-by-side on the actuator-carrying ring, and a hydraulic circuit for connecting the actuators to at least one hydraulic power source, the hydraulic circuit comprising at least two first sections for connecting two of the actuators, called head actuators, to the power source and second sections connecting the actuators in pairs so that the hydraulic circuit supplies all the actuators, in this device the actuators of each pair of actuators connected to each other by one of the second sections are non-adjunct to each other.

[0012] Surprisingly, it has emerged that the two-to-two linkage of non-adj acent actuators makes it possible to reduce vibrations compared to the braking devices of the prior art.

[0013] The invention also relates to a wheel, a landing gear, and an aircraft incorporating such a device. According to optional features, used individually or in whole or in part in any technically feasible combination:

[0014] - the hydraulic circuit comprises a first branch and a second branch which are separated from each other and which each include one of the first sections and one of the second sections;

[0015] - the actuators powered by the first branch are arranged on one side of a median plane of the actuator-carrying ring and the actuators powered by the second branch are arranged on a second side of said plane, symmetrically with respect to the actuators powered by the first branch;

[0016] - each of the actuators powered by the first branch is arranged between two of the actuators powered by the second branch;

[0017] - the actuators powered by the second branch are arranged in a non-symmetrical manner with respect to the actuators powered by the first branch;

[0018] - the hydraulic circuit is supplied by two hydraulic power sources, each connected to one of the branches;

[0019] - The actuator-carrying ring is manufactured using an additive manufacturing method.

[0020] The invention also relates to a braked wheel comprising such a braking device, a lander equipped with such a braked wheel, and an aircraft comprising at least one such lander.

[0021] Other features and advantages of the invention will become apparent from the following description of particular, non-limiting embodiments of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Reference will be made to the attached drawings, among which:

[0023] [Fig. 1] is a schematic view of an actuator-carrying ring of a braking device carrying hydraulic actuators according to an arrangement known from the prior art;

[0024] [Fig. 2] is an elevational view of an aircraft having landing gear equipped with braked wheels according to the invention;

[0025] [Fig. 3] is a half-sectional view of a braked wheel equipped with a braking device according to the invention;

[0026] [Fig. 4] is a schematic view of an actuator-carrying ring according to the invention comprising six actuators;

[0027] [Fig. 5] is a schematic view of an actuator-carrying ring according to the invention comprising twelve actuators;

[0028] [Fig. 6a] is a schematic view of the actuator-carrying ring of figure 4, comprising a hydraulic circuit linking the six different actuators according to a pattern corresponding to a first embodiment;

[0029] [Fig. 6b] is a schematic view of the actuator-carrying ring of Figure 4, comprising a hydraulic circuit linking the six different actuators in a pattern corresponding to a second embodiment;

[0030] [Fig. 6c] is a schematic view of the actuator-carrying ring of figure 4, comprising a hydraulic circuit linking the six different actuators in a pattern corresponding to a third embodiment;

[0031] [Fig. 6d] is a schematic view of the actuator-carrying ring of Figure 4, comprising a hydraulic circuit connecting the six different actuators in a pattern corresponding to a fourth embodiment.

[0032] [Fig. 6e] is a schematic view of the actuator-carrying ring of figure 4, comprising a hydraulic circuit linking the six different actuators in a pattern corresponding to a fifth embodiment;

[0033] [Fig. 6f] is a schematic view of the actuator-carrying ring of Figure 4, comprising a hydraulic circuit linking the six different actuators in a pattern corresponding to a sixth embodiment;

[0034] [Fig. 6g] is a schematic view of the actuator-carrying ring of Figure 4, comprising a hydraulic circuit linking the six different actuators in a pattern corresponding to a seventh embodiment;

[0035] [Fig. 6h] is a schematic view of the actuator-carrying ring of Figure 4, comprising a hydraulic circuit linking the six different actuators in a pattern corresponding to an eighth embodiment;

[0036] [Fig. 7a] is a schematic view of the actuator-carrying ring of Figure 5, comprising a hydraulic circuit connecting the twelve different actuators according to a pattern corresponding to a ninth embodiment; [Fig. 7b] is a schematic view of the actuator-carrying ring of Figure 5, comprising a hydraulic circuit connecting the twelve different actuators according to a pattern corresponding to a tenth embodiment; [Fig. 7c] is a schematic view of the actuator-carrying ring of Figure 5, comprising a hydraulic circuit connecting the twelve different actuators according to a pattern corresponding to an eleventh embodiment; [Fig. 7d] is a schematic view of the actuator-carrying ring of Figure 5, comprising a hydraulic circuit connecting the twelve different actuators according to a pattern corresponding to a twelfth embodiment.

[0037] DETAILED DESCRIPTION OF THE INVENTION With reference to Figures 2 and 3, the invention is described in application to an aircraft 100 comprising main landing gear having legs 101 having one end articulated to a structure of the aircraft 100 and opposite a free end provided with an axle 102 on which wheels 103 are pivotally mounted about a main axis X of rotation defined by the axle 102.

[0038] Each wheel 103 comprises a rim 103.1 carrying a tire 103.2, a hub 103.3 extending coaxially to the rim 103.1 defining with it an annular space 103.4, and a disc 103.5 connecting the hub 103.3 to the rim 103.1.

[0039] Each of the 103 wheels is equipped with a braking device generally designated as 1.

[0040] Each braking device 1 comprises a stack of discs 2 housed in the annular space 103.4. The stack of discs 2 comprises alternating rotor discs 2.1 rotationally connected to the rim 103.1 and stator discs 2.2 carried by a torsion tube 3 and rotationally connected to it. The two end discs of the stack of discs 2 are stator discs 2.2. The torsion tube 3, coaxial with the axle 103, extends around the hub 103.3 and has one end fixed to a flange 4 of the axle 102 and an opposite end free, forming a stop for the stack of discs 2.

[0041] The braking device 1 further comprises an actuation assembly 5 having a ring 6 with actuators having an inner circumference pivotally engaged on the torsion tube 3 (or the flange 4 of the axle 102) and further comprising a connecting portion 6.1 which receives a lug 101.1 extending outward from the leg 101 to oppose rotation of the ring 6 around the axle 102 during braking. The actuation assembly 5 also includes actuators 7 mounted on the ring 6 in receiving portions 6.2, and provided with movable pushrods arranged to exert, via a support plate, an axial pressing force on the stack of discs 2 parallel to the X-axis. The ring 6 and the stack of discs 2 are thus both coaxial with respect to the X-axis.

[0042] The actuators 7 are hydraulic actuators, controllable between two operating states: a first active braking state in which the pushrods are extended and a second inactive braking state in which the pushrods are retracted. These actuators 7 are mounted side-by-side on the ring 6, in a substantially circular arrangement around the X-axis with a regular distribution. A hydraulic circuit 8 is present in the ring 6 to connect the actuators 7 to at least one hydraulic power supply 9.

[0043] For clarity of description, the actuators 7 are numbered sequentially in a clockwise direction around the X-axis. Referring to Figures 4 and 5, which represent the two architectures presented in the following embodiments, an origin point 0 and 0' is positioned for each of them, located on an upper part of the ring 6, on a vertical axis (when the landers are deployed) and radial to the X-axis. The vertical axis and the X-axis define a median plane of the ring 6. The ascending numbering of the actuators 7 begins with the first actuator 7 closest to the origin point 0 or 0' in a clockwise direction; this actuator 7 is then actuator 7.1. The adjacent actuator 7 in the clockwise direction is actuator 7.2, the next is actuator 7.3, and so on.

[0044] Thus, in the first eight embodiments described below we find six actuators 7.1, 7.2, 7.3 (all three located on a first side of the median plane), 7.4, 7.5 and 7.6 (all three located on a second side of the median plane) and in the last four embodiments we find twelve actuators 7.1', 7.2', 7.3', 7.4', 7.5', 7.6' (all six located on a first side of the median plane), 7.7', 7.8', 7.9', 7.10', 7.11', 7.12' (all six located on a second side of the median plane).

[0045] The different embodiments of the hydraulic circuit 8 connecting the actuators 7 to each other and to the hydraulic power source 9 are shown in Figures 6 for the six-actuator version and in Figures 5 and 7 for the twelve-actuator version.

[0046] In each of the embodiments, the hydraulic circuit 8 includes, among the actuators 7, actuators 7 designated "head actuators", which are directly connected hydraulically to the hydraulic supply source 9 by first sections 10 of the hydraulic circuit 8. The actuators 7 of the hydraulic circuit 8 are connected to each other by second sections 11, two actuators 7 connected to each other then form a pair of actuators 7.

[0047] In all embodiments it is envisaged that the crown 6 is manufactured using an additive manufacturing process allowing the design of the complex shapes of the hydraulic circuit 8.

[0048] The first eight embodiments illustrated in Figures 6a to 6h comprise a single hydraulic power source 9 connected via a tee fitting and two initial sections 10 (or primary sections) to two main actuators 7. Actuators 7 not directly connected to the pressure source via a primary section are connected in pairs by a secondary section. In these embodiments, the hydraulic circuit 8 comprises a first branch and a second branch, which are separated from each other, and each of which includes one of the first two sections 10 of the hydraulic circuit 8 as well as two secondary sections. The secondary sections comprise at least one second section 11 and optionally a third section 12. Each second section 11 connects two non-adjunct actuators 7, and each third section 12 connects two adjunct actuators 7.

[0049] Referring to Figure 6a in the first embodiment, the hydraulic power supply 9 is connected to the two main actuators 7, which are actuators 7.1 and 7.6. Actuator 7.1 is connected to actuator 7.4 by a second section 11, and actuator 7.4 is itself connected to actuator 7.2 by another second section 11. Actuator 7.6 is connected by a second section 11 to actuator 7.3, which is itself connected to actuator 7.5 by yet another second section 11. A first branch is then defined by one of the first two sections 10, the main actuator 7.1, and actuators 7.4 and 7.2 connected by second sections 11. A second branch is then defined by the other of the first two sections 10, the main actuator. 7.6, and actuators 7.3 and 7.5 connected by second sections 11.Once again, for the sake of clarity, we present this first embodiment in the form of a list showing each branch, in which the 7 actuators are cited in order of connection starting with the head actuator:.

[0050] *** First branch:

[0051] Actuator 7.1;

[0052] Actuator 7.4;

[0053] Actuator 7.2;

[0054] *** Second branch:

[0055] Actuator 7.6;

[0056] Actuator 7.3;

[0057] Actuator 7.5.

[0058] And from here on, we will describe the following embodiments in this way.

[0059] With reference to Figure 6b and according to the second embodiment, the general architecture of the crown 6 is similar to that of the previous embodiment, and the hydraulic circuit 8 of this embodiment has the following form:

[0060] *** First branch:

[0061] Actuator 7.1;

[0062] Actuator 7.5;

[0063] Actuator 7.3;

[0064] *** Second branch:

[0065] Actuator 7.6;

[0066] Actuator 7.2;

[0067] Actuator 7.4.

[0068] With reference to Figure 6c and according to the third embodiment, the general architecture of the crown 6 is also similar to that of the previous embodiments, and the hydraulic circuit 8 of this embodiment has the following form:

[0069] *** First branch:

[0070] Actuator 7.1;

[0071] Actuator 7.3;

[0072] Actuator 7.5;

[0073] *** Second branch:

[0074] Actuator 7.6;

[0075] Actuator 7.4;

[0076] Actuator 7.2.

[0077] With reference to figure 6d and according to the fourth embodiment, the general architecture of the crown 6 is still similar to that of the previous embodiments, and the hydraulic circuit 8 of this embodiment has the following form:

[0078] *** First branch:

[0079] Actuator 7.1;

[0080] Actuator 7.5;

[0081] Actuator 7.4;

[0082] *** Second branch:

[0083] Actuator 7.6;

[0084] Actuator 7.2;

[0085] Actuator 7.3.

[0086] With reference to Figure 6e and according to the fifth embodiment, the general architecture of the crown 6 is still similar to that of the previous embodiments, and the hydraulic circuit 8 of this embodiment has the following form:

[0087] First branch:

[0088]

[0089] Actuator 7.3;

[0090] Actuator 7.2; Actuator 7.1;

[0091] *** Second branch:

[0092] Actuator 7.4;

[0093] Actuator 7.5;

[0094] Actuator 7. 6.

[0095] With reference to Figure 6f and according to the sixth embodiment, the general architecture of the crown 6 is still similar to that of the previous embodiments, and the hydraulic circuit 8 of this embodiment has the following form:

[0096] *** First branch:

[0097] Actuator 7.3;

[0098] Actuator 7.1;

[0099] Actuator 7.2;

[0100] *** Second branch:

[0101] Actuator 7.4;

[0102] Actuator 7.6;

[0103] Actuator 7.5.

[0104] With reference to Figure 6g and according to the seventh embodiment, the general architecture of the crown 6 is still similar to that of the previous embodiments, and the hydraulic circuit 8 of this embodiment has the following form:

[0105] *** First branch:

[0106] Actuator 7.2;

[0107] Actuator 7.3;

[0108] Actuator 7.1;

[0109] *** Second branch:

[0110] Actuator 7.5;

[0111] Actuator 7.4;

[0112] Actuator 7. 6. With reference to Figure 6h and according to the eighth embodiment, the general architecture of the ring 6 is still similar to that of the previous embodiments, and the hydraulic circuit 8 of this embodiment has the following form:

[0113] *** First branch:

[0114] Actuator 7.1;

[0115] Actuator 7.5;

[0116] Actuator 7.3;

[0117] *** Second branch:

[0118] Actuator 7.6;

[0119] Actuator 7.4;

[0120] Actuator 7.2.

[0121] It should be noted that:

[0122] - in figures 6a, 6b, 6c, 6h, the hydraulic circuit 8 includes only one type of secondary section, namely second sections 11 since in these embodiments there are no actuators adj acents to each other in the pairs of actuators connected by the secondary sections;

[0123] - in figures 6d, 6e, 6f, 6g, the hydraulic circuit 8 comprises the two types of secondary section, namely second sections 11 forming pairs of actuators connected together which are not adjoining each other and third sections 12 forming pairs of actuators connected together which are adjoining each other.

[0124] With reference to figure 7a according to the ninth embodiment, the hydraulic circuit 8 of the braking device 1 has two hydraulic sub-circuits 8' each connected to a hydraulic power source 9 and each having two branches. Therefore, the two hydraulic power sources 9 are connected by first sections 10 each to two head actuators 7', which are actuators 7.1' and 7.11' for the first of the two hydraulic power sources 9, and 7.2' and 7.12' for the second of the two hydraulic power sources 9. Actuator 7.1' is connected to actuator 7.3' by a second section 11, and actuator 7.3' is itself connected to actuator 7.5' by another second section 11. Actuator 7.11' is connected by a second section 11 to actuator 7.9', which is itself connected to actuator 7.7' by another second section 11. Actuator 7.2' is connected to actuator 7.4' by a second section 11, and the actuator 7.4' is itself connected to the actuator 7.6' by another second section 11. The actuator 7.12' is connected by a second section 11 to the actuator 7.10', itself connected to the actuator 7.8' by another second section 11. At the level of the first of the two hydraulic supply sources 9, a first branch includes one of the first two sections 10, the head actuator 7.1', and the actuators 7.3' and 7.5' connected by second sections 11; and a second branch includes the other of the first two sections 10, the head actuator 7.11', and the actuators 7.9' and 7.7' connected by second sections 11. At the level of the second of the two hydraulic supply sources 9, a first branch includes one of the first two sections 10, the head actuator 7.2', and the actuators 7.4' and 7.6' connected by second sections 11 and a second branch includes the other of the first two sections 10, the head actuator 7.12', and the actuators 7.10' and 7.8' connected by second sections 11.

[0125] Once again, for the sake of clarity, we present this ninth embodiment in the form of a list showing each branch, in which the actuators 7' are cited in order of connection starting with the head actuator:

[0126] - At the level of the first power supply:

[0127] *** First branch:

[0128] Actuator 7.1';

[0129] Actuator 7.3';

[0130] Actuator 7.5';

[0131] *** Second branch:

[0132] Actuator 7.11';

[0133] Actuator 7.9';

[0134] Actuator 7.7';

[0135] - Regarding the second power supply:

[0136] *** First branch:

[0137] Actuator 7.2';

[0138] Actuator 7.4';

[0139] Actuator 7. 6';

[0140] *** Second branch:

[0141] Actuator 7.12';

[0142] Actuator 7.10';

[0143] Actuator 7.8'.

[0144] With reference to Figure 7b and according to the tenth embodiment, the general architecture of the crown 6 is similar to that of the previous embodiment, and the hydraulic circuit 8 of this embodiment has the following form:

[0145] - At the first power supply:*** First branch:

[0146] Actuator 7.5';

[0147] Actuator 7.3';

[0148] Actuator 7.1';

[0149] *** Second branch:

[0150] Actuator 7.7';

[0151] Actuator 7.9';

[0152] Actuator 7.11';

[0153] - Regarding the second power supply:

[0154] *** First branch:

[0155] Actuator 7. 6';

[0156] Actuator 7.4';

[0157] Actuator 7.2';

[0158] *** Second branch:

[0159] Actuator 7.8';

[0160] Actuator 7.10';

[0161] Actuator 7.12'.

[0162] With reference to figure 7c and according to the eleventh embodiment, the general architecture of the crown 6 is similar to that of the previous embodiment, and the hydraulic circuit 8 of this embodiment has the following form:

[0163] - At the level of the first power supply:

[0164] *** First branch:

[0165] Actuator 7.1';

[0166] Actuator 7.9';

[0167] Actuator 7.5';

[0168] *** Second branch:

[0169] Actuator 7.11';

[0170] Actuator 7.3'; Actuator 7.7';

[0171] - Regarding the second power supply:

[0172] *** First branch:

[0173] Actuator 7.2';

[0174] Actuator 7.10';

[0175] Actuator 7. 6';

[0176] *** Second branch:

[0177] Actuator 7.12';

[0178] Actuator 7.4';

[0179] Actuator 7.8'.

[0180] With reference to figure 7d and according to the twelfth embodiment, the general architecture of the crown 6 is similar to that of the previous embodiment, and the hydraulic circuit 8 of this embodiment has the following form:

[0181] - At the level of the first power supply:

[0182] *** First branch:

[0183] Actuator 7.3';

[0184] Actuator 7.1';

[0185] Actuator 7.5';

[0186] *** Second branch:

[0187] Actuator 7.9';

[0188] Actuator 7.11';

[0189] Actuator 7.7';

[0190] - Regarding the second power supply:

[0191] *** First branch:

[0192] Actuator 7.4';

[0193] Actuator 7.2';

[0194] Actuator 7. 6';

[0195] *** Second branch: Actuator 7.10';

[0196] Actuator 7.12';

[0197] Actuator 7.8'.

[0198] It will be noted that in figures 7a, 7b, 7c, 7d, the hydraulic circuit 8 includes only one type of secondary section, namely second sections 11, since in these embodiments there are no actuators adj acents to each other in the pairs of actuators connected by the secondary sections.

[0199] In the fifth, sixth, seventh, ninth, tenth, and twelfth embodiments, the actuators 7, 7' powered by the first branch are arranged on the first side of the median plane of the actuator-carrying ring 6, and the actuators 7, 7' powered by the second branch are arranged on the second side of said plane. Furthermore, in all embodiments between the first and seventh, the positioning of the actuators 7, 7' powered by the second branch is symmetrical with respect to that of the actuators 7, 7' powered by the first branch, with the median plane of the actuator-carrying ring 6 as the plane of symmetry.

[0200] In the second and eighth embodiments, each of the actuators 7, 7' powered by the first branch is arranged between two of the actuators 7, 7' powered by the second branch.

[0201] In the eighth, ninth, tenth, eleventh, and twelfth embodiments, the actuators 7, 7' powered by the second branch are arranged asymmetrically with respect to the actuators 7, 7' powered by the first branch. However, for embodiments with two hydraulic power sources, the two sub-circuits 8', each powered by a hydraulic power source 9, are arranged with respect to each other in central symmetry with an angular offset around the X-axis.

[0202] Of course, the invention is not limited to the embodiment described but encompasses any variant falling within the scope of the invention as defined by the claims.

[0203] In particular, although a limited number of different hydraulic circuit patterns are described, every other possible combination of connection between actuators is considered.

[0204] Although in the described embodiments one or two hydraulic supplies and two branches are shown, the number of branches and supplies may vary.

[0205] The number of actuators may differ from that indicated: it may be higher or lower, even or odd.

Claims

DEMANDS 1. Braking device (1) of a wheel (103) of a vehicle, comprising a stack of discs (2) of which at least one rotor disc (2.1) and one stator disc (2.2), and an actuation assembly (5) for exerting a pressing force on the stack of discs (2), the actuation assembly (5) comprising an actuator-carrying ring (6) coaxial with the stack of discs (2), hydraulic actuators (7) mounted side-by-side on the actuator-carrying ring (6), and a hydraulic circuit (8) for connecting the actuators (7) to at least one hydraulic power source (9), the hydraulic circuit (8) comprising at least two first sections (10) for connecting two of the actuators (7), referred to as head actuators, to the hydraulic power source (9) and second sections (11) connecting the actuators (7) in pairs so that the hydraulic circuit (8) supplies all the actuators (7), characterized in that the actuators (7) of each pair of actuators (7) connected together by one of the second sections (11) are non-adjunct to each other.

2. Device f according to claim 1, wherein the hydraulic circuit (8) comprises a first branch and a second branch which are separated from each other and which each comprise one of the first sections (10) and of the second sections (11).

3. Device f according to claim 2, wherein the actuators (7) powered by the first branch are arranged on a first side of a median plane of the actuator-carrying ring (6) and the actuators (7) powered by the second branch are arranged on a second side of said plane, symmetrically with respect to the actuators (7) powered by the first branch.

4. Device f according to claim 2, wherein each of the actuators (7) supplied by the first branch is arranged between two of the actuators (7) supplied by the second branch.

5. Device f according to claim 2, wherein the actuators (7) supplied by the second branch are arranged non-symmetrically with respect to the actuators (7) supplied by the first branch.

6. Device f according to any one of claims 2 to 5, wherein the hydraulic circuit (8) is supplied by two hydraulic power sources (9) each connected to one of the branches.

7. Device f according to any one of the preceding claims wherein the ring (8) carrying actuators is manufactured according to an additive manufacturing method.

8. Braked wheel (103) comprising a braking device (1) according to one of the preceding claims.

9. Aircraft landing gear equipped with a braked wheel (103) according to claim 8.

10. Aircraft (100) comprising at least one landing gear according to claim 9.

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