Fluid valve assembly for seat

Abstract

A fluid valve assembly for a seat comprising a fluid bladder, the fluid valve assembly comprising: a valve housing at least partially defining a first fluid inlet, a first fluid outlet, and a first discharge outlet; a diaphragm is at least partially disposed in the valve housing and configured to flex between a first position and a second position according to a first fluid pressure differential between the first fluid inlet and the first fluid outlet.

Description

Technical Field

[0001] This disclosure generally relates to fluid valve assemblies, including fluid valve assemblies that can be used, for example, in conjunction with a vehicle seat. Attached Figure Description

[0002] While the claims are not limited to the specific examples, an understanding of the various aspects can be gained through the discussion of various examples. The drawings are not necessarily drawn to scale, and certain features may be enlarged or obscured to better illustrate and explain the innovative aspects of the examples. Furthermore, the exemplary examples described herein are not exhaustive or, in other words, not limiting, and the embodiments are not limited to the precise forms and constructions shown in the drawings or disclosed in the following detailed description. Exemplary examples are described in detail with reference to the following drawings: Figure 1 This is a schematic side view that generally illustrates an embodiment of a seat assembly including a valve assembly in accordance with the teachings of this disclosure.

[0003] Figure 2 This is a perspective view that generally illustrates an embodiment of a valve assembly according to the teachings of this disclosure.

[0004] Figure 3 This is a cross-sectional perspective view generally illustrating an embodiment of a valve assembly according to the teachings of this disclosure, which along... Figure 2 Line III-III is cut off, with the diaphragm body in the default position.

[0005] Figure 4 It generally illustrates the teachings of this disclosure. Figure 3 A cross-sectional view of an embodiment of a valve assembly, wherein the diaphragm body is in an extended position.

[0006] Figure 5 and Figure 6 This is a perspective view that generally illustrates an embodiment of a diaphragm according to the teachings of this disclosure.

[0007] Figure 7 This is a cross-sectional perspective view that generally shows an embodiment of a valve assembly according to the teachings of this disclosure.

[0008] Figure 8 and Figure 9 This is a cross-sectional view that generally shows an embodiment of a diaphragm according to the teachings of this disclosure.

[0009] Figure 10 This is a perspective view that generally illustrates an embodiment of a valve assembly according to the teachings of this disclosure.

[0010] Figure 11 This is a cross-sectional perspective view that generally shows an embodiment of a valve assembly according to the teachings of this disclosure.

[0011] Figure 12 This is a perspective view that generally illustrates an embodiment of a diaphragm according to the teachings of this disclosure.

[0012] Figure 13 This is a perspective view that generally illustrates an embodiment of a valve assembly according to the teachings of this disclosure.

[0013] Figure 14 This is an exploded perspective view generally illustrating an embodiment of a valve assembly according to the teachings of this disclosure.

[0014] Figure 15 This is a perspective view that generally illustrates an embodiment of a diaphragm according to the teachings of this disclosure.

[0015] Figure 16 This is a perspective view generally illustrating an embodiment of a second housing member in accordance with the teachings of this disclosure.

[0016] Figure 17 This is a cross-sectional perspective view that generally shows an embodiment of a valve assembly according to the teachings of this disclosure.

[0017] Figure 18 It is roughly shown Figure 17 A cross-sectional perspective view of a portion of an embodiment of the valve assembly.

[0018] Figures 19-21 This is a cross-sectional view that generally shows an embodiment of a valve assembly according to the teachings of this disclosure.

[0019] Figure 22 and Figure 23 This is a cross-sectional view that generally shows an embodiment of a valve assembly according to the teachings of this disclosure.

[0020] Figure 24 This is an exploded perspective view generally illustrating an embodiment of a valve assembly according to the teachings of this disclosure.

[0021] Figure 25 and Figure 26 This is a cross-sectional view that generally shows an embodiment of a valve assembly according to the teachings of this disclosure.

[0022] Figure 27 and Figure 28 This is a cross-sectional view that generally shows an embodiment of a valve assembly according to the teachings of this disclosure.

[0023] Figure 29 This is a perspective view that generally illustrates an embodiment of a diaphragm according to the teachings of this disclosure.

[0024] Figure 30 and Figure 31 This is a cross-sectional view that generally shows an embodiment of a valve assembly according to the teachings of this disclosure.

[0025] Figure 32 This is a perspective view that generally illustrates an embodiment of a diaphragm according to the teachings of this disclosure.

[0026] Figure 33 This is a cross-sectional perspective view that generally shows an embodiment of a diaphragm according to the teachings of this disclosure.

[0027] Figure 34 This is a perspective view that generally illustrates an embodiment of a diaphragm according to the teachings of this disclosure. Detailed Implementation

[0028] Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the various described embodiments. However, it will be apparent to those skilled in the art that the various described embodiments can be practiced without these specific details. In other instances, well-known methods, procedures, components, circuits, and networks have not been described in detail so as not to unnecessarily obscure aspects of the embodiments.

[0029] refer to Figure 1 The seat assembly 20 is shown in a vehicle 22 and includes a seat 30, a bladder assembly 32 (e.g., a fluid bladder assembly), a valve assembly 34 (e.g., a fluid valve assembly), and an electronic controller 36. The valve assembly 34 is fluidly connected to a fluid source 38. The valve assembly 34 at least partially controls the flow of fluid (e.g., air) from the fluid source 38 to inflate the bladder assembly 32, and the flow of fluid exiting the bladder assembly 32 to vent it. The valve assembly 34 is fluidly connected to the bladder assembly 32, for example, via one or more fluid conduits 40 (e.g., pipes, tubes, hoses, passages, manifolds, etc.). The seat 30 includes a seat base 50 and a seat back 52, such as one connected (e.g., rotatably connected) to the seat base 50 via an adjuster 54. The seat back 52 is shown having a headrest 56. The bladder assembly 32 includes one or more fluid bladders 70, such as those disposed at least partially in the seat 30, in one or both of the seat base 50 or the seat back 52. Fluid source 38 is configured to output fluid (e.g., air) to valve assembly 34 via one or more fluid conduits 42 (e.g., pipes, tubes, hoses, passages, manifolds, etc.). Fluid source 38 includes, for example, one or more of a pump, compressor, tank fluidly connected to an external fluid source, or source valve assembly fluidly connected to an external fluid source. Electronic controller 36 is configured to at least partially control the operation of fluid source 38, such as in response to inputs from the occupant of seat 30 (e.g., for massage, lumbar support, side support, or other adjustments).

[0030] refer to Figure 2The diagram shows the valve housing 80 of the valve assembly 34. The valve housing 80 at least partially defines a fluid inlet 82, a fluid outlet 84, and a discharge outlet 86. The fluid inlet 82 is configured for connection, such as via one or more fluid conduits 42, to a fluid source 38 (…). Figure 1 Fluid connection. Fluid outlet 84 is configured for fluid connection with one or more bladders 70 of bladder assembly 32. Figure 1 The outlet 86 is fluidly connected to the ambient air. The valve body 80 includes a first end 80A and a second end 80B. The fluid inlet 82 is located at the first end 80A. The fluid outlet 84 is located at the second end 80B.

[0031] refer to Figure 3 and Figure 4 A cross-sectional view of valve assembly 34 includes a valve housing 80 and a diaphragm 100 at least partially disposed within the valve housing 80. The valve housing 80 defines a discharge port 88 and a discharge port 90 fluidly connected to a discharge outlet 86. The valve housing 80 is shown having a first housing member 110 and a second housing member 112 cooperating to define a fluid chamber 120. The diaphragm 100 is at least partially disposed within the fluid chamber 120 and divides the fluid chamber 120 into a first segment 122 and a second segment 124. At least when the diaphragm 100 is in a position other than a second position, the discharge port 88 is fluidly connected to the second segment 124 and fluidly connected to the discharge outlet 86. The discharge port 90 is directly fluidly connected to a fluid outlet 84. For example, the fluid outlet 84 has a cylindrical configuration, and the discharge port 90 is located in the middle section of the fluid outlet 84.

[0032] A first housing member 110 and a second housing member 112 define a discharge chamber 126 that fluidly connects a discharge port 88 and a discharge port 90 to a discharge outlet 86. A damper 128 is optionally disposed in the discharge chamber 126, at least partially disposed between the discharge port 88 and the discharge outlet 86 and / or at least partially disposed between the discharge port 90 and the discharge outlet 86, for example, to limit the sound generated by the fluid flowing out of the discharge port 88 and / or the discharge port 90.

[0033] Diaphragm 100 is configured to be used in, for example Figure 3 The first position shown is similar to, for example, Figure 4The diaphragm 100 flexes between the first and second positions shown. In the first position, the diaphragm 100 restricts fluid flow from fluid inlet 82 to fluid outlet 84. In the second position, the diaphragm 100 allows fluid flow from fluid inlet 82 to fluid outlet 84 and restricts fluid flow from fluid outlet 84 to discharge outlet 86. For example, in the second position, the diaphragm 100 at least partially blocks flow from fluid outlet 84 (e.g., during venting) into the second section 124 of fluid chamber 120, which at least partially blocks the flow path from fluid outlet 84 through the second section 124 and discharge port 88 to discharge chamber 126 and discharge outlet 86. The diaphragm 100 flexes between the first and second positions according to a fluid pressure differential across the diaphragm 100, such as the fluid pressure differential between a first fluid pressure at fluid inlet 82 and a second fluid pressure at fluid outlet 84.

[0034] refer to Figure 5 and Figure 6 The diaphragm 100 includes a flange 140, a body 142, and a flexible arm 144, the flexible arm extending between the flange and the body 142 and connecting the flange and the body. The flange 140 is fixedly connected to the valve housing 80. Figure 3 For example, flange 140 is clamped between portions of the first housing member 110 and the second housing member 112. Figure 3 This prevents the flange 140 from moving when the diaphragm 100 flexes between the first and second positions. In the illustrated example, the diaphragm 100 includes a circular configuration having a flange 140 including an annular configuration and a body 142 including a cylindrical configuration. Optionally, the diaphragm 100 includes a non-circular configuration, such as an elliptical configuration, or a non-uniform shape with curvature, to allow the diaphragm to flex between the first and second positions. The body 142 defines a through-hole 146 extending therethrough. The flexible arm 144 includes a folded configuration that provides a U-shaped cross-sectional shape open away from the fluid outlet 84. Figure 3 The portions of the body 142 and the flexible arm 144 are radially spaced relative to the centerline of the body 142 through the through-hole 146, such that the diaphragm 100 defines a channel 148 opening toward the second end 80B. Figure 6 () Figure 3 The body 142 includes a first body surface 150. Figure 5 ) and a second body surface 152 that is parallel to and opposite to the first body surface 150. Figure 6 The first body surface 150 faces the first end 80A. Figure 3 The second body surface 152 faces the second end 80B. Figure 3 ).

[0035] Refer again Figure 3The valve housing 80 includes a first contact surface 160 and a second contact surface 162. A first housing member 110 includes the first contact surface 160. A second housing member 112 includes the second contact surface 162. The first contact surface 160 includes, for example, an annular protrusion extending toward the second end 80B. The second contact surface 162 is located at the inner end of the fluid outlet 84 and faces the first end 80A. In a first position of the diaphragm 100, a first body surface 150 contacts the first contact surface 160, thereby restricting and / or preventing fluid flow through the diaphragm 100 (e.g., through the through-hole 146) and / or between the first section 122 and the second section 124 or the fluid outlet 84. Figure 4 In the second position of the diaphragm 100 shown, the second body surface 152 contacts the second contact surface 162, thereby restricting and / or preventing fluid flow, such as from the fluid inlet 82 (e.g., during filling) and from the first fluid outlet (e.g., for venting), into the second section 124. Optionally, the valve assembly 34 includes a spring 170 disposed in the second section 124 and biasing the diaphragm 100 toward the first position. In the illustrated example, the spring 170 comprises a helical spring disposed at least partially around the body 142 and at least partially disposed in the channel 148. For example, the spring 170 applies a spring force toward the base 172 of the body 142 toward the first end 80A, thereby biasing the diaphragm 100 toward the first position. Alternatively or additionally, the diaphragm 100 (e.g., the flexible arm 144) is prestressed to bias the diaphragm 100 toward the first position.

[0036] When the first fluid pressure at fluid inlet 82 (e.g., in the first section 122) exceeds a threshold sufficiently higher than the second fluid pressure at fluid outlet 84 (e.g., in the second section 124) to overcome the spring force of spring 170 and / or the prestress of flexible arm 144, diaphragm 100 moves from the first position to the second position or toward the second position. For example, when fluid source 38 ( Figure 3 When fluid is supplied to fluid inlet 82, a first fluid pressure accumulates in the first section 122 and overcomes the force of spring 170 and / or the prestress of flexible arm 144. When the first fluid pressure drops below a threshold, such as when fluid source 38 ( Figure 1 When fluid supply to fluid inlet 82 is stopped, diaphragm 100 moves to a first position or toward a first position.

[0037] The discharge port 90 is configured to allow fluid to flow independently of the diaphragm 100 from the fluid outlet 84 (e.g., from one or more bladders 70 fluidly connected thereto) to the discharge outlet 86. For example, in all positions of the diaphragm 100, including a second position where the diaphragm 100 restricts or prevents flow from the fluid outlet 84 (e.g., directly) into the second segment 124, the discharge port 90 is fluidly connected to the fluid outlet 84. Fluid flow through the discharge port 90 facilitates a reduction in fluid pressure at the fluid outlet 84 when the body 142 is in the extended position, thereby reducing the differential pressure across the body 142, and facilitates movement of the body 142 toward a default position, which allows for a greater volume of flow (e.g., faster venting) from the fluid outlet 84 to the discharge outlet 86. Such a discharge port configuration allows one or more bladders 70 to vent passively and may be referred to as a permanent venting configuration. For example, valve assembly 34 allows one or more bladders 70 to vent when fluid source 38 is not supplying fluid to fluid inlet 82, and does not actively remove fluid from one or more bladders 70 (e.g., does not apply a vacuum to fluid inlet 82) or actively fluidly connect one or more bladders 70 to ambient air. This passive venting allows for less complex, lighter, more compact, and / or lower power consumption designs.

[0038] refer to Figures 7-9 The valve housing 80 optionally includes a discharge passage 180, such as replacing the discharge port 90. Figure 3 and Figure 4 () or as a supplement to the discharge port. The second contact surface 162 at least partially defines the discharge channel 180. For example, the second contact surface 162 is configured as an annular protrusion extending toward the first end 80A, and the discharge channel 180 is configured as a radially extending recess in the second contact surface 162. At the first position of the diaphragm ( Figure 7 and Figure 8 The body 142 is spaced apart from the contact surface 162, and fluid can flow into the second section 124 through the discharge passage 180 and the gap between the second body surface 152 and the second contact surface 162 via the fluid outlet 84, flow through the second section 124, flow through the discharge port 88, flow through the discharge chamber 126, and exit the valve housing 80 through the discharge outlet 86 for venting. In another embodiment, the discharge passage 180 is provided via an increased surface roughness of the second contact surface 162 and / or the second body surface 152.

[0039] At the second position of diaphragm 100 ( Figure 9The second body surface 152 contacts some or most of the second contact surface 162, but is offset from the surface of the discharge passage 180, such that the fluid outlet 84 is fluidly connected to the second section 124. The discharge passage 180 fluidly connects the fluid outlet 84 to the discharge outlet 86 via the second section 124, the discharge port 88, and the discharge chamber 126. For example, with the body 142 in the extended position, fluid indicated by arrow 130 can flow from the fluid inlet 82 through the body 142 and through the fluid outlet 84 for filling, or fluid indicated by arrow 132 can flow from the fluid outlet 84 through the discharge passage 180, through the second section 124, through the discharge port 88, through the discharge chamber 126, and through the discharge outlet 86 to exit the valve body 80 for venting. For example, the discharge passage 180 facilitates reducing the fluid pressure at the fluid outlet 84 when the body 142 is in the extended position, thereby reducing the differential pressure across the body 142 and facilitating the movement of the body 142 toward the default position, such as to provide automatic and passive venting (e.g., permanent venting).

[0040] refer to Figure 10 and Figure 11 The valve housing 80 optionally includes a plurality of fluid inlets 200, a plurality of fluid outlets 202, and a plurality of fluid chambers 204. Figure 11 The housing 110 and multiple discharge outlets 206 are also present. For example, multiple fluid inlets 200 include fluid inlet 82 (e.g., a first fluid inlet), a second fluid inlet 210, a third fluid inlet 212, a fourth fluid inlet 214, and / or a fifth fluid inlet 216, and multiple fluid outlets 202 include fluid outlet 84 (e.g., a first fluid outlet), a second fluid outlet 220, a third fluid outlet 222, a fourth fluid outlet 224, and / or a fifth fluid outlet 226. Optionally, the first housing member 110 and the second housing member 112 are laser welded together.

[0041] refer to Figure 11 The plurality of fluid chambers 204 include, for example, fluid chambers 120 (e.g., a first fluid chamber), a second fluid chamber 230, a third fluid chamber 232, a fourth fluid chamber 234, and / or a fifth fluid chamber 236 that are separate from each other (e.g., not fluidly connected). A first housing member 110 includes a plurality of fluid inlets 200. A second housing member 112 includes a plurality of fluid outlets 202. The first housing member 110 and the second housing member 112 cooperate to at least partially define the plurality of fluid chambers 204.

[0042] The second housing component 112 includes a plurality of discharge outlets 206 fluidly connected to corresponding fluid chambers 204. For example, the plurality of discharge outlets 206 include discharge outlet 86 (e.g., a first discharge outlet), a second discharge outlet 240 fluidly connected to a second fluid chamber 230, a third discharge outlet 242 fluidly connected to a third fluid chamber 232, a fourth discharge outlet 244 fluidly connected to a fourth fluid chamber 234, and / or a fifth discharge outlet 246 fluidly connected to a fifth fluid chamber 236.

[0043] The diaphragm 100 is at least partially disposed in a plurality of fluid chambers 204. The diaphragm 100 includes a plurality of bodies 250 and a plurality of flexible arms 252 that flexibly connect the bodies 250 to the flange 140, such that the bodies 250 are movable between a default (e.g., retracted) position and an extended position (e.g., via flexure of the flexible arms 252). For example, the plurality of bodies 250 include a body 142 (e.g., a first body) disposed in a fluid chamber 120, a second body 260 disposed in a second fluid chamber 230, a third body 262 disposed in a third fluid chamber 232, a fourth body 264 disposed in a fourth fluid chamber 234, and / or a fifth body 266 disposed in a fifth fluid chamber 236. The plurality of flexible arms 252 include a flexible arm 144 (e.g., a first flexible arm) that flexibly connects a body 142 to a flange 140, a second flexible arm 270 that flexibly connects a second body 260 to a flange 140, a third flexible arm 272 that flexibly connects a third body 262 to a flange 140, a fourth flexible arm 274 that flexibly connects a fourth body 264 to a flange 140, and / or a fifth flexible arm 276 that flexibly connects a fifth body 266 to a flange 140. The diaphragm 100 may optionally be configured as a single integral component. Each of the bodies 250 is configured to move between a default position and an extended position (e.g., via deflection of the corresponding flexible arm 252) based on the pressure differential between the respective fluid inlet 200 and fluid outlet 202 and independently of the pressure differentials in the other bodies 250 and other fluid chambers 204. For example, fluid inlet 200, fluid outlet 202, fluid chamber 204, discharge outlet 206, and the body 250 and flexible arm 252 of diaphragm 100 define corresponding independently operable valves 280, 282, 284, 286, and 288 of valve assembly 34. In a first position, body 250 contacts first housing member 110, thereby restricting and / or preventing fluid flow from fluid inlet 200 to fluid outlet 202. In a second position, body 250 contacts fluid outlet 202 to facilitate flow from fluid inlet 200 to fluid outlet 202. One or more of valves 280-288 may be as follows: Figure 3 and Figure 4The configuration shown (e.g., with a corresponding discharge port, such as discharge port 90) and / or one or more of valves in valves 280-288 may be as follows: Figures 7-9 The configuration shown (e.g., with a corresponding exhaust channel, such as exhaust channel 180) includes five valves 280-288, but may include other numbers of valves.

[0044] exist Figure 12 The diagram shows a perspective view of a diaphragm 100 including a flange 140, a body 250, and flexible arms 252. The flange 140 includes circular segments 300-308 connected to each of the flexible arms 252, and rectangular segments 310-316 connecting the circular segments 300-308.

[0045] The diaphragm 100 includes multiple positions corresponding to the positions of the bodies 142. For example, a first position of the diaphragm 100 includes all bodies 142 in a default position. A second position of the diaphragm 100 includes the first bodies 142 in an extended position and bodies 260-266 in the default position. A third position of the diaphragm 100 includes the first bodies 142 and the second bodies 260 in the extended positions and bodies 262-266 in the default positions. The diaphragm 100 flexes from the first position to the second position according to a first pressure difference in the first fluid chamber 120, and flexes from the second position to the third position according to a second pressure difference in the second fluid chamber 260. The second pressure difference is independent of the first pressure difference.

[0046] refer to Figure 13 The perspective view shows what can be used as Figure 1 Valve assembly 1034 is a valve assembly 34. Valve assembly 1034 includes a valve housing 1080, a fluid inlet 1082, and a plurality of fluid outlets 1084. Fluid inlet 1082 is configured for fluid connection, such as via fluid conduit 42, to a fluid source 38. Fluid outlets 1084 are configured for fluid connection, such as via fluid conduit 40, to a corresponding fluid sac 70. Sac 70 includes sacs 70A-E and sacs 72A-E, each of which may include one or more sacs. In the illustrated example, fluid outlet 1084 includes a pair of first fluid outlets 1218A and 1220A fluidly connected to bladders 70A and 72A, a pair of second fluid outlets 1218B and 1220B fluidly connected to bladders 70B and 72B, a pair of third fluid outlets 1218C and 1220C fluidly connected to bladders 70C and 72C, a pair of fourth fluid outlets 1218D and 1220D fluidly connected to bladders 70D and 72D, and a pair of fifth fluid outlets 1218E and 1220E fluidly connected to bladders 70E and 72E.

[0047] refer to Figure 14An exploded perspective view shows valve assembly 1034, wherein valve housing 1080 includes a first housing member 1110, a second housing member 1112, and a third housing member 1114. The first housing member 1110 includes a fluid inlet 1082 and a plurality of fluid outlets 1084. The first housing member 1110 at least partially defines a plurality of fluid chambers 1204, each fluid chamber being fluidly connected to a corresponding pair of fluid outlets 1084. For example, fluid chambers 1204 include a first fluid chamber 1204A, a second fluid chamber 1204B, a third fluid chamber 1204C, a fourth fluid chamber 1204D, and / or a fifth fluid chamber 1204E. Valve assembly 1034 includes a diaphragm 1100 partially disposed in each of the fluid chambers 1204. Valve assembly 1034 optionally includes a plurality of springs 1170, such as springs 1170A-E, biasing the diaphragm 1100 toward a first position.

[0048] refer to Figure 15 The perspective view shows a diaphragm 1100. The diaphragm 1100 includes a flange 1140, a plurality of bodies 1142, and a plurality of flexible arms 1144 that flexibly connect the bodies 1142 to the flange 1140, allowing the bodies 1142 to move between a default position and an extended position. The bodies 1142 include portions disposed in corresponding fluid chambers 1204 (…). Figure 14 The first body 1142A, the second body 1142B, the third body 1142C, the fourth body 1142D, and / or the fifth body 1142E are included. The flexible arm 1144 includes a first flexible arm 1144A flexibly connecting the first body 1142A to the flange 1140, a second flexible arm 1144B flexibly connecting the second body 1142B to the flange 1140, a third flexible arm 1144C flexibly connecting the third body 1142C to the flange 1140, a fourth flexible arm 1144D flexibly connecting the fourth body 1142D to the flange 1140, and / or a fifth flexible arm 1144E flexibly connecting the fifth body 1142E to the flange 1140. Each body 1142 includes a through-hole 1146 for fluid flow. Flange 1140 includes a plurality of flange apertures 1154, such as first, second, third, fourth, and fifth flange apertures 1154A-E. Flange 1140 is disposed (e.g., fixedly clamped) between a first housing member 1110 and a second housing member 1112. Figure 14 )between.

[0049] The diaphragm 1100 includes multiple positions corresponding to the positions of the bodies 1142. For example, a first position of the diaphragm 1100 includes all bodies 1142 in a default position. A second position of the diaphragm 1100 includes a first body 1142A in an extended position and bodies 1142B-E in a default position. A third position of the diaphragm 1100 includes the first and second bodies 1142A-B in extended positions and bodies 1142C-E in a default position.

[0050] refer to Figure 16 The perspective view shows the second housing member 1112. The second housing member 1112 covers and partially defines the fluid chamber 1204. Figure 14 The second housing member 1112 includes each body 1142 for the diaphragm 1100. Figure 15 The first contact surface 1160. For example, the first contact surface 1160 includes first contact surfaces 1160A-E, which are configured to extend into the fluid chamber 1120. Figure 14 The circular protrusion in the body 1142 contacts the first body surface 1150A-E of the body 1142 when the body 1142 is in the default position. Figure 14 The second housing component 1112 includes a plurality of fluid channels 1300, the plurality of fluid channels including a first fluid channel 1300A, a second fluid channel 1300B, a third fluid channel 1300C, a fourth fluid channel 1300D and / or a fifth fluid channel 1300E.

[0051] refer to Figure 17 The cross-sectional view shows valve assembly 1034. Fluid inlet 1082 includes a first inlet section 1310 that extends from valve housing 1080 for use with fluid source 38, such as via one or more fluid conduits 42. Figure 1 The fluid inlet 1082 includes a second inlet section 1312 that extends in the valve housing 1080 (e.g., the first housing member 1110) from the first inlet section 1310 to a first flange orifice 1154A of the diaphragm 1100. The first flange orifice 1154A is at least partially aligned with a first fluid passage 1300A of the second housing member 1112, which is fluidly connected to a first fluid chamber 1204A, such that the first inlet section 1310 is fluidly connected to the first fluid chamber 1204A via the second inlet section 1312, the first flange orifice 1154A, and the first fluid passage 1300A. The valve housing 1080 includes a discharge port 1090 that is fluidly connected to the first inlet section 1310 (e.g., directly). In the example shown, the first inlet section 1310 and the second inlet section 1312 are perpendicular to each other, but other configurations are possible.

[0052] Valve housing 1080 (e.g., first housing member 1110) includes a plurality of outlet manifolds 1320, including first, second, third, fourth, and fifth outlet manifolds 1320A-E. The outlet manifolds 1320 extend into fluid chamber 1204 and provide second contact surfaces 1162, such as second contact surfaces 1162A-E. Springs 1170 are partially disposed around the respective body 1142 and outlet manifolds 1320.

[0053] Diaphragm 1100 divides each fluid chamber in fluid chamber 1204 into a first segment 1230 (such as first segment 1230A-E) and a second segment 1232 (such as second segment 1232A-E). The first segment 1230 is disposed between diaphragm 1100 and second housing member 1112. The second segment 1232 is disposed between diaphragm 1100 and first housing member 1110. The size (e.g., volume) of the first segment 1230 and the second segment 1232 varies depending on the position of body 1142. For example, the first segment 1230 is smaller in the default position than in the extended position, and the second segment 1232 is larger in the default position than in the extended position.

[0054] Valve housing 1080 includes a plurality of discharge outlets 1206, such as discharge outlets 1206A-E. Discharge outlets 1206 are fluidly connected to a corresponding fluid chamber 1204 (e.g., second section 1232) and to the exterior of valve housing 1080 (e.g., ambient air) to discharge fluid, such as fluid from bladder 70, from valve housing 1080 for venting. In the default position of body 1142, fluid outlet 1084 is fluidly connected to discharge outlet 1206 via second section 1232, which allows bladder 70 to vent by allowing fluid to flow from bladder 70 into valve housing 1080, through fluid outlet 1084, through fluid chamber 1204, and out of valve housing 1080 through discharge outlet 1206. At the extended position of the body 1142, the body 1142 restricts or prevents fluid flow from the fluid outlet 1084 into the second section 1232, which restricts or prevents fluid flow from the fluid outlet 1084 to the discharge outlet 1206.

[0055] refer to Figure 18 Provided Figure 17The enlarged portion shows the fluid flow (arrow 1314) from fluid source 38 through one or more fluid conduits 40, through a first inlet section 1310, through a second inlet section 1312, through a flange orifice 1154A, through a first fluid passage 1300A, and into a first section 1204A of the first fluid chamber 1230A. Fluid continues to flow into the first section 1230A, and when the fluid pressure exceeds a threshold, the first body 1142A will move toward an extended position. Figure 18 Also shown are fluid outlets 1218A and 1220A (e.g., from...). Figure 13 The fluid flow (arrow 1316) of the bladders 70A and 72A shown enters the second section 1232A of the first fluid chamber 1204A through the first outlet manifold 1320A, exits the valve housing 1080 through the discharge outlet 1206A.

[0056] refer to Figure 19 The diagram shows a cross-sectional view taken through the first fluid chamber 1204A, a pair of first fluid outlets 1218A, 1220A, and a first outlet manifold 1320A. The valve housing 1080 (e.g., first housing member 1110) includes a first connection passage 1322A. The first outlet manifold 1320A is fluidly connected to the pair of first fluid outlets 1218A, 1220A and the first connection passage 1322A. With the first body 1142A in its default position, the fluid source 38 ( Figure 1 The first body 1142A is activated to provide fluid into the first section 1230A of the first fluid chamber 1204A, where fluid pressure accumulates in the first section 1230A, and when the fluid pressure exceeds a threshold, the first body 1142A moves from the default position to the extended position.

[0057] refer to Figure 20 In the extended position, the first body 1142A connects the first outlet manifold 1320A to the fluid source 38 ( Figure 19 The fluid is fluidly connected such that fluid flows into the first outlet manifold 1320A through the through-hole 1146 of the first body 1142A, and reaches (i) a pair of first fluid outlets 1218A, 1220A through the first outlet manifold 1320A. Figure 19 ) to inflate the corresponding capsules 70A, 70B of the capsule assembly 32. Figure 19(ii) enters the first connection passage 1322A, as indicated by arrow 136. The first connection passage 1322A extends at least partially from the first outlet manifold 1320A through the valve housing 1080 (e.g., the first housing member 1110) to the second flange orifice 1154B, which is at least partially aligned with and fluidly connected to the second fluid passage 1300B, which is fluidly connected to the second fluid chamber 1204B. For example, when the first body 1142A is in the extended position, the fluid source 38 is fluidly connected to the second fluid chamber 1204B. When the bladders 70A, 70B ( Figure 19 When filled with fluid, the first fluid outlets 1218A and 1220A provide less flow resistance compared to the second fluid chamber 1204B (e.g., due to the prestress of the spring 1170B and / or the second flexible arm 1144B). Figure 17 And most of the fluid from the first outlet manifold 1320A flows into the first fluid outlets 1218A and 1220A.

[0058] Once the 70A, 70B ( Figure 19 When the second body 1142B is in the first position, fluid pressure builds up in the first connection passage 1322A until the pressure threshold is met, and then the second body 1142B moves toward the extended position, allowing fluid to flow through the through-hole 1146 of the second body 1142B and into the second outlet manifold 1320B to fill the bladders 72A, 72B that are fluidly connected to a pair of second fluid outlets 1218A, 1220A. This allows the second body 1142B to be indirectly fluidly connected to and receive fluid from the fluid source 38. When the second body 1142B is in the first position, fluid pressure builds up in the first section 1230B until the pressure threshold is met, and then the second body 1142B moves toward the extended position, allowing fluid to flow through the through-hole 1146 of the second body 1142B and into the second outlet manifold 1320B to fill the bladders 72A, 72B that are fluidly connected to a pair of second fluid outlets 1218A, 1220A. Figure 19 For each subsequent fluid chamber 1204C-E, diaphragm body 1142C-E, and paired fluid outlets 1218C-E and 1220C-E, the corresponding process is repeated to sequentially fill the grouped bladders 70C-E and 72C-E. For example, filling bladder 70 includes first filling bladders 70A and 72A (e.g., to a threshold level), then filling bladders 70B and 72B, then filling bladders 70C and 72C, then filling bladders 70D and 72D, and then filling bladders 70E and 72E, which provides a wave effect during filling.

[0059] Such as Figure 21Generally shown, with all sacs 70 filled to the threshold level and fluid supplied by fluid source 38, all bodies 1142 are positioned in the extended position. In this configuration, all sacs 70 are fluidly connected to fluid source 38. Figure 13 ).

[0060] In order to make sac 70 ( Figure 19 ) Release, fluid source 38 ( Figure 19 The supply of fluid to fluid inlet 1082 is stopped, and the fluid in the first fluid chamber 1204A (e.g., in the first section 1230A), as indicated by arrow 1328, flows back through the first fluid passage 1300A, through the flange orifice 1154A, through the second inlet section 1312, into the first inlet section 1310, and exits the valve housing 1080 through the discharge port 1090. This flow through the discharge port 1090 reduces the fluid pressure in the first section 1230A to below a threshold, which allows the prestress of the spring 1170A and / or the first flexible arm 1144A to move the first body 1142A from the extended position toward the default position. The first body 1142A, moved out of the extended position, fluidly connects the first outlet manifold 1320A to the discharge outlet 1206A to allow the bladders 70A, 72A ( Figure 19 In addition to venting through the discharge port 1090, venting also occurs through the discharge outlet 1206A. Moving the first body 1142A out of its extended position also fluidly connects the first section 1230B of the second fluid chamber 1204B to the discharge outlet 1206A, which reduces the fluid pressure in the first section 1230B below a threshold and allows the prestress of the spring 1170B and / or the second flexible arm 1144B to move the second body 1142B from its extended position toward its default position to open the discharge outlet 1206B and allow the bladders 70B, 72B ( Figure 19 ) venting. This process continues, wherein each body 1142C-E moves out of its extended position to open the corresponding discharge outlet 1206C-E, so that the paired capsules 70C-E, 72C-E ( Figure 19 The bladder is vented and allows adjacent bodies 1142C-E to move out of their extended positions. This process provides the bladder 70 in the same sequence as the filling. Figure 19 The successive release of bladders provides a wave-like filling-draining pattern. For example, bladders 70A and 70B ( Figure 19 First fill and first release, and sac 70E, 72E ( Figure 19 Finally, it is filled and finally discharged. Valve assembly 1034 is shown as having five fluid chambers 1120, but may include other numbers of fluid chambers.

[0061] refer to Figure 22 The perspective view shows what can be used as Figure 1Valve assembly 2034 is a valve assembly 34. Valve assembly 2034 includes a valve housing 2080, a fluid inlet 2082, a fluid outlet 2084, and a discharge outlet 2086. Fluid inlet 2082 is configured for fluidly connecting valve housing 2080 to a fluid source 38, such as via fluid conduit 42. Fluid outlet 2084 is configured for fluidly connecting valve housing 2080 to one or more fluid sacs 70, such as via fluid conduit 40. Discharge outlet 2086 fluidly connects valve housing 2080 to a relatively low fluid pressure region, such as ambient air.

[0062] Valve housing 2080 at least partially defines a fluid chamber 2120 fluidly connected to a fluid inlet 2082, a fluid outlet 2084, and a discharge outlet 2086. Valve assembly 2034 includes a diaphragm 2100 disposed in the fluid chamber 2120, and a wall 2400 (e.g., an inner wall, plate, etc.) dividing the fluid chamber 2120 into a first segment 2230 and a second segment 2232. The first segment 2230 is fluidly connected to the fluid inlet 2082. The second segment 2232 is fluidly connected to the fluid outlet 2084 and the discharge outlet 2086. The wall 2400 includes one or more fluid passages 2402 extending through the wall 2400. The diaphragm 2100 is coupled to (e.g., fixed to) the wall 2400.

[0063] The diaphragm 2100 includes a base 2420 and a flexible dome 2422 extending from the base 2420. The base 2420 is coupled to the wall 2400, and the flexible dome 2422 is disposed in a second segment 2232. The flexible dome 2422 may... Figure 22 The first position shown is... Figure 23 The flexing occurs between the second positions shown. Figure 22 In the first position shown (e.g., the default position), the flexible dome 2422 covers the set of fluid passages 2402, thereby restricting or preventing fluid flow from the fluid inlet 2082 to the fluid outlet 2084 or discharge outlet 2086, and from the fluid outlet 2084 or discharge outlet 2086 back to the fluid inlet 2082. In the first position, the diaphragm 2100 does not restrict the fluid between the fluid outlet 2084 and the fluid inlet 2082, allowing the bladder 70 to vent via fluid flow from the bladder 70 through the fluid outlet 2084 into the second section 2232, through the second section 2232 to the discharge outlet 2086, and exiting the valve assembly 2034 through the discharge outlet 2086. In the first position, the flexible dome 2422 includes, for example, a first U-shaped cross-sectional shape opening toward the wall 2400, and the outer edge 2424 (e.g., an annular edge) of the flexible dome 2422 contacts the wall 2400 radially outward of the set of fluid passages 2402. The flexible dome 2422 is prestressed toward the first position.

[0064] exist Figure 23 In the second position shown (e.g., the extended position), the flexible dome 2422 flexes away from the wall 2400 such that the flexible dome 2422 does not substantially restrict fluid flow from the fluid inlet 2082 to the fluid outlet 2084, thereby allowing the bladder 70 to be filled. In the second position, the outer edge 2424 contacts the valve housing 1080 such that the discharge outlet 2086 is covered, and fluid flow from the fluid inlet 2082 and the fluid outlet 2084 into the discharge outlet 2086 is restricted or prevented, thereby restricting or preventing the bladder 70 from venting via the discharge outlet 2086.

[0065] The flexible dome 2422 flexes between a first position and a second position according to the fluid pressure in the first section 2230. For example, when the fluid pressure in the first section 2230 is at or below a pressure threshold, the flexible dome 2422 remains in the first position or flexes to or toward the first position. When the fluid pressure in the first section 2230 exceeds the pressure threshold, the flexible dome 2422 flexes to or toward the second position. The pressure threshold corresponds to a fluid pressure sufficient to overcome the spring force or prestress of the flexible dome 2422 (e.g., a pressure differential across the flexible dome 2422). The fluid source 38 is configured to supply fluid exceeding the pressure threshold to the first section 2230, causing the flexible dome 2422 to move to or toward the second position and inflate the bladder 70.

[0066] With the diaphragm 2100 in the second position, at least one of the valve housing 2080 or the diaphragm 2100 provides a discharge passage 2180 at the contact area between the valve housing 2080 and the diaphragm 2100. The discharge passage 2180 is provided, for example, as a recess in the valve housing 2080, via a protrusion of the diaphragm 2100 (e.g., which spaces adjacent portions of the diaphragm 2100 from the surface of the valve housing 2080), via an increased surface roughness of the valve housing 2080, via an increased surface roughness of the diaphragm 2100, or a combination thereof. With the flexible dome 2422 in the second position, the discharge passage 2180 allows at least a certain amount of fluid to flow from the bladder 70 to the discharge outlet 2086 to facilitate the release of the bladder 70 (e.g., automatic release). For example, when fluid source 38 is not supplying fluid, and when flexible dome 2422 is in the second position, fluid flows from bladder 70 through discharge channel 2180 to discharge outlet 2086, which continues to reduce the fluid pressure in first section 2230 until the spring force or prestress of flexible dome 2422 causes flexible dome 2422 to flex back to the first position.

[0067] refer to Figure 24 The perspective view shows what can be used as Figure 1Valve assembly 3034 is a valve assembly 34. Valve assembly 3034 includes a valve housing 3080, a fluid inlet 3082, and a fluid outlet 3084. Fluid inlet 3082 is configured for fluidly connecting valve housing 3080 to a fluid source 38, such as via fluid conduit 42. Fluid outlet 3084 is configured for fluidly connecting valve housing 3080 to one or more corresponding fluid sacs 70, such as via fluid conduit 40. Valve housing 3080 includes a first housing member 3110, a second housing member 3112, a diaphragm 3100, and a wall 3400 (e.g., an inner wall, plate, etc.). Optionally, valve assembly 3034 includes a set of one or more inserts 3430.

[0068] refer to Figure 25 and Figure 26 A first housing member 3110 and a second housing member 3112 at least partially define a fluid chamber 3120 fluidly connected to a fluid inlet 3082 and a fluid outlet 3084. A diaphragm 3100 is disposed in the fluid chamber 3120, and a wall 3400 divides the fluid chamber 3120 into a first segment 3230 and a second segment 3232. The first segment 3230 is fluidly connected to the fluid inlet 3082. The second segment 3232 is fluidly connected to the fluid outlet 3084. The wall 3400 includes one or more fluid passages 3402 extending through the wall 3400. The diaphragm 3100 is coupled to (e.g., fixed to) the wall 3400.

[0069] The diaphragm 3100 includes a base 3420 and a flexible dome 3422 extending from the base 3420. The base 3420 is coupled to the wall 3400, and the flexible dome 3422 is disposed in a second segment 3232. The flexible dome 3422 may be Figure 25 The first position shown is... Figure 26 The flexing occurs between the second positions shown. Figure 25 In the first position shown (e.g., the default position), the flexible dome 3422 covers a first subset 3404 of the set of fluid passages 3402, such as a first fluid passage 3406, thereby restricting or preventing fluid flow from fluid inlet 3082 through the first fluid passage 3406 to fluid outlet 3084, and fluid flow from fluid outlet 3084 through the first fluid passage 3406 to fluid inlet 3082. In the first position, the flexible dome 3422 includes, for example, a first U-shaped cross-sectional shape opening toward the wall 3400, and the outer edge 3424 (e.g., an annular edge) of the flexible dome 3422 contacts the wall 3400 radially outward of the first subset 3404 of the set of fluid passages 3402. The flexible dome 3422 is prestressed toward the first position.

[0070] exist Figure 26In the second position shown (e.g., the extended position), the flexible dome 3422 flexes away from the wall 3400 such that the flexible dome 3422 does not substantially restrict fluid flow from the fluid inlet 3082 through the first fluid passage subset 3404 to the fluid outlet 3084, thereby allowing the filling of the bladder 70. In the second position, the flexible dome 3422 includes, for example, a second U-shaped cross-sectional shape open away from the wall 3400, and the outer edge 3424 is spaced apart from the wall 3400.

[0071] The flexible dome 3422 flexes between a first position and a second position according to the fluid pressure in the first section 3230 (e.g., compared to the fluid pressure in the second section 3232). For example, when the fluid pressure in the first section 3230 is at or below a pressure threshold, the flexible dome 3422 remains in the first position or flexes to or toward the first position. When the fluid pressure in the first section 3230 exceeds the pressure threshold, the flexible dome 3422 flexes to or toward the second position. The pressure threshold corresponds to a fluid pressure sufficient to overcome the spring force or prestress of the flexible dome 3422 (e.g., a pressure differential across the flexible dome 3422). The fluid source 38 is configured to supply fluid exceeding the pressure threshold to the first section 3230, causing the flexible dome 3422 to move to or toward the second position and inflate the bladder 70.

[0072] The second fluid pathway subset 3408 of the set of fluid pathways 3402 includes a second fluid pathway 3410. The second fluid pathway subset 3408 is configured to allow fluid to flow through the wall 3400 at a non-zero rate, regardless of the position of the diaphragm 3100. Optionally, a porous medium 3412 (such as those present in the set of inserts 3430) Figure 24 The diaphragm 3100 is configured in the second fluid passage subset 3408 to control the flow rate. When the fluid source 38 supplies fluid to the fluid inlet 3082, fluid flows into the first fluid passage subset 3404 and the second fluid passage subset 3408. The fluid flows through the second fluid passage subset 3408 to the fluid outlet 3084 (e.g., immediately). Once the pressure threshold is reached, the fluid flows from the first fluid passage subset 3404 and the second fluid passage subset 3408 to the fluid outlet 3084. When the fluid source 38 does not supply fluid to the fluid inlet 3082, fluid from the bladder 70 flows into the fluid outlet 3084 and through the second fluid passage subset 3408, while the diaphragm 3100 restricts or prevents fluid flow through the first fluid passage subset 3404, causing the discharge rate to be slower than the filling rate. Optionally, in the reverse configuration, fluid source 38 is fluidly connected to fluid outlet 3084, and bladder 70 is fluidly connected to fluid inlet 3082, such as to provide slower filling and faster venting.

[0073] refer to Figure 27 and Figure 28 The cross-sectional view shows what can be used as Figure 1 Valve assembly 4034 is a valve assembly 34. Valve assembly 4034 includes a valve housing 4080, a fluid inlet 4082, a fluid outlet 4084, and a discharge outlet 4086. Fluid inlet 4082 is configured to connect valve housing 4080 to fluid source 38 and / or fluid conduit 42. Figure 1 Fluid connection. Fluid outlet 4084 is configured to connect valve housing 4080 to one or more corresponding fluid sacs 70 and / or fluid conduits 40. Figure 1 Fluid connection. The outlet 4086 fluidly connects the valve body 4080 to a low-pressure fluid region such as ambient air. The valve body 4080 is optionally provided with a pipe configuration.

[0074] Valve housing 4080 at least partially defines a fluid chamber 4120 fluidly connected to a fluid inlet 4082 and a fluid outlet 4084. Valve assembly 4034 includes a diaphragm 4100 disposed within the fluid chamber 4120 and dividing the fluid chamber 4120 into a first segment 4230 and a second segment 4232. The first segment 4230 is fluidly connected to the fluid inlet 4082. The second segment 4232 is fluidly connected to the fluid outlet 4084. Diaphragm 4100 is coupled to (e.g., fixed to) valve housing 4080.

[0075] The diaphragm 4100 includes a flange 4140, a body 4142, and a flexible arm 4144 that flexibly connects the body 4142 to the flange 4140. The flange 4140 is coupled (e.g., fixed) to the valve housing 4080. The flexible arm 4144 is configured to flex to allow the body 4142 to move within the fluid chamber 4120.

[0076] Diaphragm 4100 can be used Figure 27 The first position shown is... Figure 28 The flexing occurs between the second positions shown. Figure 27 In the first position shown (e.g., the default position), the body 4142 is offset from the discharge outlet 4086 and does not restrict the fluid flow from the fluid outlet 4084 to the discharge outlet 4086, such as to facilitate the flow of fluid from the bladder 70 ( Figure 1 The flexible arm 4144 is prestressed toward the first position.

[0077] exist Figure 28 In the second position shown (e.g., the extended position), the flexible arm 4144 flexes toward the fluid outlet 4084, which causes the body 4142 to be positioned such that the body 4142 covers the discharge outlet 4086, thereby restricting or preventing fluid flow, such as from the fluid inlet 4082 or the fluid outlet 4084, into the discharge outlet 4086.

[0078] The diaphragm 4100 flexes between a first position and a second position based on a fluid pressure differential across the diaphragm 4100, such as across the flexible arm 4144. For example, when the fluid pressure in the first section 4230 is at or below a pressure threshold, the diaphragm 4100 remains in the first position or flexes to or toward the first position. When the fluid pressure in the first section 4230 exceeds the pressure threshold, the diaphragm 4100 flexes to or toward the second position. The pressure threshold corresponds to a fluid pressure sufficient to overcome the spring force or prestress of the flexible arm 4144 (e.g., a pressure differential across the flexible arm 4144). Fluid source 38 ( Figure 1 The diaphragm 4100 is configured to supply fluid exceeding a pressure threshold to the first section 4230, causing the diaphragm 4100 to move to or toward the second position and inflate the bladder 70. Figure 1 ).

[0079] With the diaphragm 4100 in the second position, at least one of the valve housing 4080 or the diaphragm 4100 provides a discharge passage 4180 at or near the discharge outlet 4086, in the contact area between the valve housing 4080 and the diaphragm 2100. The discharge passage 4180 is provided, for example, as a recess in the valve housing 4080, via a protrusion of the diaphragm 4100 (e.g., which spaces adjacent portions of the diaphragm 4100 from the surface of the valve housing 4080), via an increased surface roughness of the valve housing 4080, via an increased surface roughness of the diaphragm 4100, or a combination thereof. With the diaphragm 4100 in the second position, the discharge passage 4180 allows at least a certain amount of fluid to flow from the bladder 70 through the fluid outlet 4084 to the discharge outlet 4086 to facilitate the release of the bladder 70 (e.g., automatic release). For example, when fluid source 38 is not supplying fluid, and when diaphragm 4100 is in the second position, fluid flows from bladder 70 into fluid outlet 4084, through discharge channel 4180, and to discharge outlet 4086. This continues to reduce the fluid pressure in the first section 4230 until the spring force or prestress of diaphragm 4140 causes diaphragm 4140 to flex back to the first position (e.g., for automatic passive venting).

[0080] refer to Figure 29The perspective view shows a diaphragm 4100 having a flange 4140, a body 4142, and a flexible arm 4144. In the illustrated example, the body 4142 includes a first body segment 4150 and a second body segment 4152. The first body segment 4150 extends from the flexible arm 4144 to the second body segment 4152. The second body segment 4152 has a rectangular configuration with a larger radial extent compared to the first body segment 4150. The flexible arm 4144 includes a first arm segment 4460, a second arm segment 4462, and a third arm segment 4464, extending radially outward from the flange 4140 in a three-point star configuration. A fluid passage 4466 is disposed between the flexible arm 4144 and the flange 4140. Fluid can flow through the fluid passage 4466 at all locations of the diaphragm 4100.

[0081] refer to Figure 30 It shows that in Figure 27 The image shows a cross-sectional view of valve assembly 4034 taken at line XXX-XXX. Valve housing 4080 includes a first channel 4470 and / or a second channel 4472. Body 4142 (e.g., a second body segment 4152) is partially disposed in the first channel 4470 and the second channel 4472, such as to guide movement of body 4142 and / or restrict or prevent rotation of body.

[0082] refer to Figure 31 It shows that in Figure 28 A cross-sectional view of valve assembly 4034 taken at line XXXI-XXXI. Discharge outlet 4086 includes four discharge outlet portions 4480, 4482, 4484, and 4486 extending from channels 4470 and 4472 through valve housing 4080. Diaphragm 4100 is shown in a second position, and body 4142 blocks discharge outlet portions 4480, 4482, 4484, and 4486, thereby restricting or preventing fluid flow through discharge outlet portions 4480, 4482, 4484, and 4486.

[0083] The diaphragm 4100 can be a single, integral component. Alternatively, such as Figure 32 As generally shown, the diaphragm 4100 is optionally configured as a two-part assembly. With the two-part assembly, the flange 4140 and the flexible arm 4144 are integrally formed as a first part 4500, and the body 4142 is formed as a second part 4502 configured to be partially inserted into and engaged with the first part 4500.

[0084] refer to Figure 33 The flexible arm 4144 of the diaphragm 4100 may include more than three arm segments, such as four arm segments, including arm segments 4460-4464 that partially define four fluid passages 4466 and a fourth arm segment 4468.

[0085] refer to Figure 34 The flexible arm 4144 of the diaphragm 4100 may include an annular structure (e.g., instead of including multiple arm segments), and the through orifice 4146 may extend through the flexible arm 4144 and the body 4142.

[0086] Using each of valve assemblies 34, 1034, 2034, 3034, and 4034, fluid can be supplied to a fluid inlet to inflate one or more bladders, and fluid can be automatically and passively discharged from one or more bladders to vent them. For example, venting of bladder 70 can be performed without a discharge actuator.

[0087] In some instances, a valve assembly may include a combination of some or all of the elements of valve assemblies 34, 1034, 2034, 3034, and 4034, which are not mutually exclusive. For example, a single valve assembly or a single seat assembly may include all valve assemblies 34, 1034, 2034, 3034, and 4034 fluidly coupled to a corresponding sub-mass of bladder 70.

[0088] This disclosure includes the following non-limiting embodiments: A fluid valve assembly for a seat including a fluid bladder, the fluid valve assembly comprising: a valve housing defining at least partially a first fluid inlet, a first fluid outlet, and a first discharge outlet; and a diaphragm disposed at least partially in the valve housing and configured to flex between the first position and the second position according to a first fluid pressure differential between the first fluid inlet and the first fluid outlet; wherein in the first position, the diaphragm restricts fluid flow from the first fluid inlet to the first discharge outlet and the first fluid outlet; and in the second position, the diaphragm allows flow from the first fluid inlet to the first fluid outlet and restricts fluid flow from the first fluid outlet to the first discharge outlet.

[0089] According to any of the preceding embodiments of the fluid valve assembly, in the first position, the first discharge outlet and the first fluid outlet are fluidly connected; and in the second position of the diaphragm, the diaphragm restricts the flow between the first fluid outlet and the first discharge outlet.

[0090] According to any of the preceding embodiments of the fluid valve assembly, wherein the diaphragm includes: a flange fixedly coupled to the valve housing; a body including a through orifice; and a flexible arm extending between the flange and the body and connecting the flange and the body.

[0091] According to any of the foregoing embodiments, the fluid valve assembly includes a spring that is at least partially disposed around the body and biases the diaphragm toward the first position.

[0092] According to any of the preceding embodiments of the fluid valve assembly, wherein the valve housing defines a first discharge port and a first exhaust port; and wherein the first exhaust port is fluidly connected to the first fluid outlet and the first discharge outlet.

[0093] According to any of the preceding embodiments of the fluid valve assembly, wherein the valve housing defines a discharge passage provided via at least one of a recess, a protrusion, or an increased surface roughness.

[0094] According to any of the preceding embodiments of the fluid valve assembly, wherein at the first and second positions of the diaphragm, the discharge passage fluidly connects the first fluid outlet to the first discharge outlet.

[0095] According to any of the preceding embodiments of the fluid valve assembly, wherein the valve housing includes a contact surface; in the second position, the diaphragm contacts the contact surface; and the contact surface at least partially defines the discharge passage.

[0096] According to any of the foregoing embodiments, the fluid valve assembly is configured as a permanent vent valve to allow the fluid bladder to vent when the diaphragm is in the first position.

[0097] According to any of the foregoing embodiments of the fluid valve assembly, wherein the valve housing includes a first housing member coupled to a second housing member; the first housing member and the second housing member cooperate to at least partially define a first fluid chamber; the diaphragm is at least partially disposed in the first fluid chamber; in a first position, the diaphragm contacts a first contact surface of the first housing member such that fluid flow through the diaphragm is restricted; and in a second position, the diaphragm contacts a second contact surface of the second housing member such that fluid flow to the first discharge outlet is restricted.

[0098] According to any of the foregoing embodiments of the fluid valve assembly, wherein the valve housing further defines a second fluid inlet, a second fluid outlet, and a second discharge outlet; the first housing member and the second housing member cooperate to define a second fluid chamber separate from the first fluid chamber; the diaphragm includes a first arm and a first body at least partially disposed in the first fluid chamber, and a second arm and a second body at least partially disposed in the second fluid chamber; and the diaphragm is configured to flex between a second position and a third position according to a second fluid pressure differential between the second fluid inlet and the second fluid outlet, the second fluid pressure differential being independent of the first fluid pressure differential.

[0099] In the fluid valve assembly according to any of the foregoing embodiments, the diaphragm is an integral component.

[0100] According to any of the foregoing embodiments, the fluid valve assembly includes: the valve housing including a first housing member coupled to a second housing member; the first housing member and the second housing member cooperating to at least partially define a first fluid chamber and a second fluid chamber; the diaphragm including a first body at least partially disposed in the first fluid chamber and a second body at least partially disposed in the second fluid chamber; the first fluid chamber including a first segment and a second segment separated by the diaphragm; at a first position of the diaphragm, a second segment of the first fluid chamber is fluidly coupled to a first fluid outlet; the valve housing defines a second fluid outlet; at the first position of the diaphragm, the second fluid chamber is fluidly coupled to the second fluid outlet; and at a second position of the diaphragm, the first fluid outlet is fluidly coupled to a first fluid inlet, and the second fluid chamber is fluidly coupled to the first fluid outlet.

[0101] According to any of the preceding embodiments of the fluid valve assembly, wherein at a first position of the diaphragm, the first body and the second body are configured in a default configuration; at a second position of the diaphragm, the first body is in an extended position and the second body is configured in the default configuration; and at a third position of the diaphragm, the second body is configured in an extended configuration to fluidly connect the second fluid outlet to the first fluid inlet via a through-hole of the first body and the first fluid outlet.

[0102] According to any of the preceding embodiments of the fluid valve assembly, wherein at a first position of the diaphragm, the first fluid outlet and a first section of the second fluid chamber are fluidly connected to the first discharge outlet.

[0103] A vehicle seat assembly includes: a fluid valve assembly according to any of the foregoing embodiments; and the fluid bladder fluidly connected to the first fluid outlet.

[0104] According to any of the foregoing embodiments of the fluid valve assembly, wherein: the valve housing at least partially defines a plurality of fluid outlets including the first fluid outlet, a plurality of discharge outlets including the first discharge outlet, and a plurality of fluid chambers, each of the plurality of fluid chambers being fluidly connected to at least one of the plurality of fluid outlets and at least one of the plurality of discharge outlets; and the diaphragm is partially disposed in each of the plurality of fluid chambers to sequentially fluidly connect the fluid outlets of the plurality of fluid outlets to the first fluid inlet and to sequentially discharge from the plurality of fluid outlets.

[0105] A vehicle seat assembly includes: a fluid valve assembly according to any of the foregoing embodiments; and a plurality of fluid bladders, each of the plurality of fluid bladders being fluidly connected to a corresponding fluid outlet of the plurality of fluid outlets for successive filling and permanent deflating.

[0106] A fluid valve assembly for a seat including a fluid bladder, the fluid valve assembly comprising: a valve housing that at least partially defines a fluid chamber, a fluid inlet, and a fluid outlet; a diaphragm disposed in the valve housing and configured to flex between a first position and a second position according to a fluid pressure differential between the fluid inlet and the fluid outlet; and a plate disposed in the valve housing and dividing the fluid chamber into a first segment and a second segment, the plate defining a first fluid passage and a second fluid passage; wherein in the first position, the diaphragm restricts fluid flow through the first fluid passage; in the second position, the diaphragm allows flow from the fluid inlet through the first fluid passage to the fluid outlet; and the second fluid passage is configured to allow a first flow velocity in a first direction toward the fluid outlet and a second flow velocity less than the first flow velocity in a second direction toward the fluid inlet.

[0107] The fluid valve assembly according to any of the preceding claims further includes a porous material disposed in the second fluid passage.

[0108] An electronic controller configured to control the operation of any of the foregoing embodiments.

[0109] According to any of the preceding embodiments, the electronic controller controls the operation by controlling a fluid source to supply fluid to inflate the bladder and controlling the fluid source to stop supplying fluid, and wherein a valve assembly automatically deflates the bladder.

[0110] A non-transitory computer-readable storage medium having a computer program encoded thereon for controlling the operation of any of the foregoing embodiments.

[0111] According to any of the foregoing embodiments, the storage medium wherein controlling the operation includes controlling a fluid source to supply fluid to inflate the bladder and controlling the fluid source to stop supplying fluid, and wherein a valve assembly automatically deflates the bladder.

[0112] In examples, a controller (e.g., electronic controller 36) may include an electronic controller and / or an electronic processor, such as a programmable microprocessor and / or a microcontroller. In embodiments, the controller may include, for example, an application-specific integrated circuit (ASIC) and / or an embedded controller. The controller may include a central processing unit (CPU), memory (e.g., a non-transitory computer-readable storage medium), and / or input / output (I / O) interfaces. The controller may be configured to perform various functions, including those described in more detail herein, wherein appropriate programming instructions and / or code are embodied in software, hardware, and / or other media. In embodiments, the controller may include multiple controllers. In embodiments, the controller may be connected to a display, such as a touchscreen display.

[0113] Various examples / implementations are described herein with reference to various devices, systems, and / or methods. Numerous specific details are set forth to provide a thorough understanding of the overall structure, function, manufacture, and use of the examples / implementations as described in the specification and illustrated in the accompanying drawings. However, those skilled in the art will understand that the examples / implementations can be practiced without such specific details. In other instances, well-known operations, components, and elements have not been described in detail so as not to obscure the examples / implementations described in the specification. Those skilled in the art will understand that the examples / implementations described and illustrated herein are non-limiting examples, and therefore it will be appreciated that the specific structural and functional details disclosed herein may be representative and do not necessarily limit the scope of the embodiments.

[0114] Throughout this specification, references to "example," "in an example," "using an example," "in the illustrated example," "various embodiments," "using an embodiment," "in an embodiment," "an embodiment," "using some constructions," "in some constructions," etc., indicate that a particular feature, structure, or characteristic described in connection with an example / embodiment is included in at least one embodiment. Therefore, the appearance of the phrases "example," "in an example," "using an example," "in the illustrated example," "in various embodiments," "using an embodiment," "in an embodiment," "an embodiment," "using some constructions," "in some constructions," etc., in various places throughout this specification does not necessarily all refer to the same embodiment. Furthermore, specific features, structures, and / or characteristics can be combined in any suitable manner in one or more examples / embodiments. Therefore, a particular feature, structure, or characteristic shown or described in connection with one embodiment / example can be combined, in whole or in part, with features, structures, functions, and / or characteristics of one or more other embodiments / examples without limitation, provided that such combination is not illogical or ineffective. Moreover, many modifications can be made to adapt a particular situation or material to the teachings of this disclosure without departing from the scope of this disclosure. The word "exemplary" is used herein to mean "used as a non-limiting example."

[0115] It should be understood that references to a single element are not necessarily so limited unless the context explicitly indicates otherwise, and may include one or more of such elements. Any directional references (e.g., addition, subtraction, up, down, upward, downward, left, right, left to right, top, bottom, above, below, vertical, horizontal, clockwise, and counterclockwise) are used only for identification purposes to help the reader understand this disclosure and do not impose limitations, particularly regarding limitations on the location, orientation, or use of the examples / embodiments.

[0116] "One or more" includes functions performed by a single element, functions performed by more than one element (e.g., in a distributed manner), several functions performed by a single element, several functions performed by several elements, or any combination of the foregoing. In the context of, for example, "at least one of A, B, and C" or "at least one of A, B, or C," the term "at least one of..." includes only A, only B, only C, or any combination or subset of A, B, and C, including any combination or subset of one or more A's, one or more B's, and one or more C's. A "set" of elements may include any number of one or more elements.

[0117] Although the terms first, second, etc., are used in some instances herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the various described embodiments. Both the first element and the second element are elements, but they are not the same element.

[0118] The terminology used in the description of the various described embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various described embodiments and in the appended claims, the singular forms “a”, “an”, and “described” are intended to include the plural forms as well, unless the context clearly indicates otherwise. The term “and / or” as used herein refers to and covers any and all possible combinations of one or more associated listed items. The use of “and” and “or” should be interpreted broadly (e.g., considered as “and / or”). For example, but not limited to, the use of “and” does not necessarily require all listed elements or features, and the use of “or” is inclusive unless such a construction would be illogical. The terms “includes,” “including,” “comprises,” and / or “comprising”, when used in this specification, specify the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof.

[0119] The use of anagrams (e.g., attachment, connection, link, etc.) should be interpreted broadly and may include intermediate members between component connections, relative movement between components, direct connections, indirect connections, fixed connections, movable connections, operable connections, indirect contact, and / or direct contact. Therefore, an anagram does not necessarily mean that two components are directly connected / linked and fixed to each other. Connections of electrical components (if any) may include mechanical connections, electrical connections, wired connections, and / or wireless connections, etc. The use of “e.g.” and “such as” in the specification should be interpreted broadly and is intended to provide non-limiting examples of embodiments of this disclosure, and this disclosure is not limited to such examples.

[0120] Although processes, systems, and methods may be described in this paper in combination with one or more steps in a particular sequence, such methods may be practiced using steps in different orders, using some steps performed simultaneously, using additional steps, and / or using steps with omitted descriptions.

[0121] As used herein, depending on the context, the term "if" may optionally be interpreted as meaning "when," "at," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if [the condition or event] is detected" may optionally be interpreted as meaning "when determination," "in response to determination," "when [the condition or event] is detected," or "in response to the detection of [the condition or event]."

[0122] All matters contained in the above description or shown in the accompanying drawings should be interpreted as illustrative rather than restrictive. Changes in detail or structure may be made without departing from this disclosure.

Claims

1. A fluid valve assembly for a seat including a fluid bladder, the fluid valve assembly comprising: A valve housing that at least partially defines a first fluid inlet, a first fluid outlet, and a first discharge outlet; A diaphragm, at least partially disposed in the valve housing and configured to flex between a first position and a second position according to a first fluid pressure differential between the first fluid inlet and the first fluid outlet; In the first position, the diaphragm restricts fluid flow from the first fluid inlet to the first discharge outlet and the first fluid outlet; and In the second position, the diaphragm allows flow from the first fluid inlet to the first fluid outlet and restricts fluid flow from the first fluid outlet to the first discharge outlet.

2. The fluid valve assembly of claim 1, wherein in the first position, the first discharge outlet and the first fluid outlet are fluidly connected; and At the second position of the diaphragm, the diaphragm restricts the flow between the first fluid outlet and the first discharge outlet.

3. The fluid valve assembly of claim 1, wherein the diaphragm comprises: A flange that is fixedly connected to the valve housing; The body including the through-hole; as well as A flexible arm extends between the flange and the body and connects the flange and the body.

4. The fluid valve assembly of claim 3, wherein the fluid valve assembly includes a spring that is at least partially disposed around the body and biases the diaphragm toward the first position.

5. The fluid valve assembly of claim 4, wherein the valve housing defines a first discharge port and a first outlet port; and The first discharge port is fluidly connected to the first fluid outlet and the first discharge outlet.

6. The fluid valve assembly of claim 3, wherein the valve housing defines a discharge passage provided via at least one of a recess, a protrusion, or an increased surface roughness.

7. The fluid valve assembly of claim 6, wherein at the first and second positions of the diaphragm, the discharge passage fluidly connects the first fluid outlet to the first discharge outlet.

8. The fluid valve assembly of claim 7, wherein the valve housing includes a contact surface; At the second position, the diaphragm contacts the contact surface; and The contact surface at least partially defines the emission channel.

9. The fluid valve assembly of claim 1, wherein the fluid valve assembly is configured as a permanent vent valve to allow the fluid bladder to vent when the diaphragm is in the first position.

10. The fluid valve assembly of claim 1, wherein the valve housing includes a first housing member coupled to a second housing member; The first housing member and the second housing member cooperate to at least partially define the first fluid chamber; The diaphragm is at least partially disposed in the first fluid chamber; At the first position, the diaphragm contacts the first contact surface of the first housing member, thereby restricting fluid flow through the diaphragm; and In the second position, the diaphragm contacts the second contact surface of the second housing member, thereby restricting fluid flow to the first discharge outlet.

11. The fluid valve assembly of claim 10, wherein the valve housing further defines a second fluid inlet, a second fluid outlet, and a second discharge outlet; The first housing member and the second housing member cooperate to define a second fluid chamber that is separate from the first fluid chamber; The diaphragm includes a first arm and a first body at least partially disposed in the first fluid chamber, and a second arm and a second body at least partially disposed in the second fluid chamber; and The diaphragm is configured to flex between a second position and a third position according to a second fluid pressure differential between the second fluid inlet and the second fluid outlet, the second fluid pressure differential being independent of the first fluid pressure differential.

12. The fluid valve assembly of claim 11, wherein the diaphragm is an integral component.

13. The fluid valve assembly of claim 1, wherein: The valve housing includes a first housing component connected to the second housing component; The first housing member and the second housing member cooperate to at least partially define the first fluid chamber and the second fluid chamber; The diaphragm includes a first body at least partially disposed in the first fluid chamber and a second body at least partially disposed in the second fluid chamber; The first fluid chamber includes a first section and a second section separated by the diaphragm; At the first location of the diaphragm, the second section of the first fluid chamber is fluidly connected to the first fluid outlet; The valve housing defines a second fluid outlet; At a first position of the diaphragm, the second fluid chamber is fluidly connected to the second fluid outlet; and At the second position of the diaphragm, the first fluid outlet is fluidly connected to the first fluid inlet, and the second fluid chamber is fluidly connected to the first fluid outlet.

14. The fluid valve assembly of claim 13, wherein at the first position of the diaphragm, the first body and the second body are configured in a default configuration; At the second position of the diaphragm, the first body is in an extended position, and the second body is configured in the default configuration; and At the third position of the diaphragm, the second body is configured in an extended configuration to fluidly connect the second fluid outlet to the first fluid inlet via a through-hole in the first body and the first fluid outlet.

15. The fluid valve assembly of claim 14, wherein at a first location of the diaphragm, the first fluid outlet and a first section of the second fluid chamber are fluidly connected to the first discharge outlet.

16. A vehicle seat assembly, comprising: The fluid valve assembly according to claim 1; as well as The fluid bag is fluidly connected to the first fluid outlet.

17. The fluid valve assembly of claim 1, wherein: The valve housing at least partially defines a plurality of fluid outlets including the first fluid outlet, a plurality of discharge outlets including the first discharge outlet, and a plurality of fluid chambers, each of the plurality of fluid chambers being fluidly connected to at least one of the plurality of fluid outlets and at least one of the plurality of discharge outlets; and The diaphragm is partially disposed in each of the plurality of fluid chambers to sequentially fluidly connect the fluid outlets of the plurality of fluid outlets to the first fluid inlet and to sequentially discharge the plurality of fluid outlets.

18. A vehicle seat assembly, comprising: The fluid valve assembly according to claim 17; as well as Multiple fluid bladders, each fluid bladder being fluidly connected to a corresponding fluid outlet among the multiple fluid outlets for sequential filling and permanent venting.

19. A fluid valve assembly for a seat including a fluid bladder, the fluid valve assembly comprising: A valve housing that at least partially defines a fluid chamber, a fluid inlet, and a fluid outlet; A diaphragm disposed in the valve housing and configured to flex between a first position and a second position according to the fluid pressure difference between the fluid inlet and the fluid outlet; as well as A plate, disposed in the valve housing and dividing the fluid chamber into a first section and a second section, the plate defining a first fluid passage and a second fluid passage; In the first position, the diaphragm restricts fluid flow through the first fluid passage; In the second position, the diaphragm allows flow from the fluid inlet through the first fluid passage to the fluid outlet; and The second fluid passage is configured to allow a first flow rate in a first direction toward the fluid outlet and a second flow rate less than the first flow rate in a second direction toward the fluid inlet.

20. The fluid valve assembly of claim 19, further comprising a porous material disposed in the second fluid passage.

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