feedthrough assembly

Abstract

A feedthrough assembly for a bulkhead for mobile and static engine components. The feedthrough assembly can be configured to include a flexible bellows that allows for movement and sealing of the engine components relative to the bulkhead. In one aspect, a flexible bellows spherical element can be provided in the feedthrough assembly. In another aspect, a flexible bellows bellows element can be provided in the feedthrough assembly. These flexible bellows elements can have a plurality of bellows sections that include bellows sections having different stiffnesses. The bellows sections can be configured to allow for movement of the shaft relative to the bulkhead, including lateral deflection and tilt.

Description

Technical Field

[0001] Some embodiments relate to feedthrough assemblies, including firewalls and bulkhead feedthrough (BFT) assemblies. Further embodiments relate to bulkhead feedthrough sealing assemblies for moving and static engine components. Background Technology

[0002] Complex mechanical equipment in aircraft, such as aircraft engines, typically has components or parts that are transferred from one section of the machine to another via partitions. These partitions act as internal firewalls, protecting the aircraft's occupants and sensitive parts of the mechanical equipment in emergency situations.

[0003] To accommodate components or parts, bulkheads require bulkhead feedthrough (BFT) assemblies that allow components or parts to pass through the bulkhead without compromising its integrity as a firewall; these are also known as pass-through components. BFT assemblies may be required to comply with fire safety regulations under laws such as those in the United States under U.S. 14 CFR (“Applicable to Engines and Propellers”), particularly Parts 23 (“Installation in Small Aircraft”), 25 (“Installation in Transport Class Aircraft”), and 33 (“Airworthiness Standard: Aircraft Engines”).

[0004] In addition to fire resistance requirements, BFT assemblies must also accommodate the movement of components or parts. Moving components or parts (such as, for example, actuators (etc.)) may require sliding back and forth and / or rotating via partitions to engage moving parts on either side. Static components or parts (such as, for example, conduits (etc.)) may be subjected to vibrational movement due to the operation of mechanical equipment. Other types of movement include, but are not limited to, tilting and translation. Summary of the Invention

[0005] According to an embodiment, a feedthrough assembly for a partition includes a channel configured to extend through the partition and allow a member to pass through the channel from a first side of the partition to a second side of the partition. The feedthrough assembly also includes at least one convolutional section extending around an end of the channel, wherein the convolutional section is configured to allow lateral deflection and tilting of the member.

[0006] Additional features, advantages, and embodiments of this disclosure will be apparent from the following detailed description, drawings, and claims. Furthermore, it will be understood that both the foregoing summary and the following detailed description are intended to provide further explanation and not to limit the scope of the disclosure as claimed.

[0007] Technical Solution 1. A feedthrough assembly for a partition, the feedthrough assembly comprising:

[0008] A channel, configured to extend through the partition and allow a member to pass through the channel from a first side of the partition to a second side of the partition; and

[0009] At least one spiral section extends around the end of the channel, wherein the spiral section is configured to allow lateral deflection and tilting of the member.

[0010] Technical Solution 2. The feedthrough assembly according to any of the foregoing technical solutions, wherein the spiral section is a first spiral section, the end of the channel is disposed on a first side of the partition, the feedthrough assembly includes a second spiral section extending around another end of the channel disposed on a second side of the partition, and the second spiral section is configured to cooperate with the first spiral section to allow lateral deflection and tilting of the component.

[0011] Technical Solution 3. The feedthrough assembly according to any of the foregoing technical solutions, wherein the at least one spiral section is configured to allow the member to move relative to the partition by at least one of compression and expansion of at least a portion of the spiral section, and

[0012] The portion of the spiral section includes at least one flexible member and a plurality of non-flexible members, and the compression and expansion of the portion of the spiral section includes the movement of the at least one flexible member and the non-flexible members.

[0013] Technical Solution 4. A feedthrough assembly according to any of the foregoing technical solutions, wherein the at least one flexible member is a bending member, and the movement of the at least one flexible member includes a change in the radius of curvature of the bending member, and

[0014] The non-flexible component of the spiral section is a straight component, and the movement of the non-flexible component includes a change in the distance between at least two straight components.

[0015] Technical Solution 5. The feedthrough assembly according to any of the foregoing technical solutions, wherein the lateral deflection is a movement of the member within the channel in any direction perpendicular to the long axis of the channel, and

[0016] The tilting is the movement of the component that causes it to pass through the partition at an oblique angle relative to the surface of the partition.

[0017] Technical Solution 6. The feedthrough assembly according to any of the foregoing technical solutions, wherein the movement of the member relative to the partition includes at least one of the member sliding through the channel, the member rotating axially, and the member vibrating in the channel.

[0018] Technical Solution 7. A feedthrough assembly according to any of the foregoing technical solutions, wherein the partition is a fire barrier, and the swivel section applies a force to connect the member to the channel to prevent the path used to allow fire to pass through the partition from opening during the movement of the member relative to the partition, and

[0019] When the component is installed in the partition, the spiral section is in a compressed state, and the compressed state applies a force to connect the component to the channel.

[0020] Technical Solution 8. The feedthrough component according to any of the foregoing technical solutions further includes:

[0021] A spherical segment that surrounds the channel; and

[0022] A ring-shaped seat section is positioned to surround the spherical section and configured to allow the spherical section to rotate in any direction.

[0023] The tilt is a first tilt, and the spherical section is configured to allow the member to tilt relative to the partition by rotating within the seat ring section.

[0024] Technical Solution 9. The feedthrough component according to any of the foregoing technical solutions further includes:

[0025] A first flexible element, in an annular shape and positioned to surround the seat ring section on the first side of the partition; and

[0026] A second flexible element, in an annular shape and positioned to wrap around the seat ring section on the second side of the partition.

[0027] The first flexible element and the second flexible element are connected to each other using a plurality of flanges attached to the partition, and

[0028] The lateral deflection is a first lateral deflection, and both the first flexible element and the second flexible element are configured to allow a second lateral deflection of the member relative to the partition, and the second lateral deflection is the lateral sliding of the feedthrough assembly in any direction along the partition.

[0029] Technical Solution 10. The feedthrough assembly according to any of the foregoing technical solutions further includes a dry film lubricant applied to the inner surface of the seat ring section, wherein the dry film lubricant is at least one selected from polytetrafluoroethylene (PTFE), graphite, and molybdenum disulfide.

[0030] Technical Solution 11. The feedthrough assembly according to any of the foregoing technical solutions, wherein the winding section is a first winding section, the lateral deflection is a first lateral deflection, and the tilt is a first tilt, and the feedthrough assembly further comprises:

[0031] A second, annular spiral section extends around the first spiral section, wherein the second spiral section is configured to allow movement of the member relative to the partition, and

[0032] The movement of the component relative to the partition, permitted by the second swirling section, includes a second lateral deflection and a second tilt.

[0033] Technical Solution 12. The feedthrough assembly according to any of the foregoing technical solutions, wherein the end of the channel is disposed on a first side of the partition, and the feedthrough assembly further comprises:

[0034] A third spiral section extends around the other end of the channel located on the second side of the partition, wherein the third spiral section is configured to cooperate with the first spiral section to allow a first lateral deflection and a first tilt of the member; and

[0035] A fourth spiral section extends around the third spiral section, wherein the fourth spiral section is configured to cooperate with the second spiral section to allow a second lateral deflection and a second tilt of the member.

[0036] Technical Solution 13. The feedthrough assembly according to any of the foregoing technical solutions, wherein the second lateral deflection is the movement of the member within the channel in any direction perpendicular to the long axis of the channel, and

[0037] The second tilt is a movement of the member that causes it to pass through the partition at an oblique angle relative to the surface of the partition.

[0038] Technical Solution 14. The feedthrough assembly according to any of the foregoing technical solutions, wherein the second spiral section is configured to allow the member to move relative to the partition by at least one of compression and expansion of at least a portion of the second spiral section.

[0039] Technical Solution 15. The feedthrough component according to any of the foregoing technical solutions, wherein the first winding section has a thickness of 20 mm, the second winding section has a thickness of 50 mm, and the other sections of the feedthrough component have a thickness greater than 50 mm.

[0040] Technical Solution 16. The feedthrough assembly according to any of the foregoing technical solutions, wherein the feedthrough assembly is manufactured using electroforming technology, and the feedthrough assembly is composed of at least one of nickel and a high-strength nickel alloy.

[0041] Technical Solution 17. The feedthrough assembly according to any of the foregoing technical solutions further includes a dry film lubricant applied to the inner surface of the channel, wherein the dry film lubricant is at least one selected from polytetrafluoroethylene (PTFE), graphite, and molybdenum disulfide.

[0042] Technical Solution 18. The feedthrough assembly according to any of the foregoing technical solutions, wherein the component includes at least one of a moving shaft, a rotating shaft, a control rod, an actuator, a static conduit, a cable, a pipe, a conduit, a fuel line, wire, and a wire harness.

[0043] Technical Solution 19. The feedthrough assembly according to any of the foregoing technical solutions, wherein the spiral section has a thickness ranging from ten millimeters (mm) to sixty millimeters, and other sections of the feedthrough assembly have a thickness greater than that of the spiral section.

[0044] Technical Solution 20. The feedthrough component according to any of the foregoing technical solutions, wherein the winding section has a periodic profile shape, and the periodic profile shape is one of a wavy profile, a corrugated U-shaped profile, a Z-shaped profile, and a corrugated Ω-shaped profile. Attached Figure Description

[0045] The features and advantages described above, as well as other features and advantages, will become apparent from the following more particular description of various exemplary embodiments as illustrated in the accompanying drawings, wherein similar reference numerals generally indicate elements that are identical, functionally similar, and / or structurally similar.

[0046] Figure 1 An example of an aircraft engine according to an embodiment of this disclosure is shown.

[0047] Figure 2 A portion of an engine having a diaphragm feedthrough assembly is shown according to an embodiment of the present disclosure.

[0048] Figure 3A A cross-sectional view of a prior art diaphragm feedthrough assembly with a ball bearing for accommodating a moving shaft is shown.

[0049] Figure 3B A perspective view showing a stuck rod passing through a bearing in a prior art feedthrough assembly.

[0050] Figure 4A An exploded view of a prior art diaphragm feedthrough assembly with overlapping seals for accommodating static conduits is shown.

[0051] Figure 4B An opening in a prior art baffle feed assembly is shown, which allows fire to pass through the baffle.

[0052] Figure 5A A perspective view of a diaphragm feedthrough assembly including a spherical element having a spiral section, according to an embodiment of the present disclosure.

[0053] Figure 5B Show Figure 5A The cross-sectional view of the diaphragm feeder shown is taken along line 5B-5B.

[0054] Figure 6A A perspective view of a spherical element according to an embodiment of the present disclosure is shown.

[0055] Figure 6B Show Figure 6A A perspective sectional view of a spherical element.

[0056] Figure 6C Show Figure 6A The cross-sectional view of the spherical element shown is taken along line 6C-6C.

[0057] Figure 7A The wavy profile of a spiral section according to an embodiment of the present disclosure is shown.

[0058] Figure 7B The diagram shows the corrugated U-shaped profile of a spiral section according to an embodiment of the present disclosure.

[0059] Figure 7C The diagram shows the corrugated Ω-shaped profile of a spiral section according to an embodiment of the present disclosure.

[0060] Figure 8A A perspective view of a partition feedthrough assembly according to another embodiment of the present disclosure is shown.

[0061] Figure 8B Show Figure 8A The cross-sectional view of the diaphragm feeder shown is taken along line 8B-8B.

[0062] Figure 9 This invention illustrates a dry film lubricant according to another embodiment of the present disclosure. Figure 8A The cross-sectional view of the diaphragm feeder shown is taken along line 8B-8B.

[0063] Figure 10A Another embodiment according to this disclosure is shown. Figure 5A The diagram shows a cross-sectional view of the diaphragm feeder assembly taken along line 5B-5B.

[0064] Figure 10B This invention illustrates a dry film lubricant according to another embodiment of the present disclosure. Figure 5A The enlarged cross-sectional view of the diaphragm feeder shown is taken along line 5B-5B. Detailed Implementation

[0065] Various embodiments are discussed in detail below. Although specific embodiments are discussed, this is for illustrative purposes only. Those skilled in the art will recognize that other components and constructions can be used without departing from the spirit and scope of this disclosure.

[0066] This disclosure and various embodiments relate to diaphragm feedthrough (BFT) assemblies (also referred to as feedthroughs). These BFT assemblies can be applied across a wide range of technologies and industries. Various embodiments can be described herein in the context of aero-engines and aircraft mechanics.

[0067] To comply with fire regulations and function properly, existing BFT assemblies have very tight manufacturing tolerances, which complicates assembly and can lead to component jamming and / or seal leakage over time due to wear. Therefore, there remains a need for improved feedthrough assemblies, including firewall and partition feedthrough (BFT) assemblies. Various embodiments described herein and illustrated in the figures include BFT assemblies that allow components or parts to pass through partitions without compromising the integrity of the partitions. Various components or parts can include moving parts such as actuators and shafts, as well as static (non-moving) parts such as conduits, cables, and / or pipes. BFT assemblies accommodate the degrees of freedom and movement of components or parts without compromising functionality. In some embodiments, this can be accomplished using a spiral structure, which provides flexibility and adaptability to the BFT assembly, as described in more detail herein.

[0068] refer to Figure 1 An example of an aircraft engine 100 according to an embodiment of the present disclosure is shown. Types of such engines include turboprop engines, turbofan engines, turbines, and turbojet engines. The aircraft engine 100 has multiple high-pressure and / or high-temperature components, including a turbine 105, a combustor 110, a fuel system 115, and a compressor 120. Some or all of these components are located in different sections of the aircraft engine 100, separated by exemplary partitions 125, 130 that act as fire barriers and partition walls. The aircraft engine 100 also includes exemplary components 135a and 135b that need to be moved or pass through partitions 125, 130 without compromising the integrity of partitions 125, 130. Exemplary components 135a, 135b may include moving parts, such as rotating shafts, control levers, and actuators, and may include static (non-moving) conduits, such as cables, pipes, conduits, fuel lines, wires, and wiring harnesses.

[0069] exist Figure 2 An example of a portion of engine 200 is shown. This portion of engine 200 includes a partition feeder 205 for a firewall partition 210. As shown, the partition feeder 205 may include an actuated control lever 215 passing through the firewall partition 210. The actuated control lever 215 connects an actuation point 220 on one side of the firewall partition 210 to a bell crank assembly 225 on the other side. As the bell crank assembly 225 moves, the actuated control lever 215 also slides back and forth. The actuated control lever 215 passes through the partition feeder 205, which must allow for sliding movement of the actuated control lever and any vibratory, tilting, and translational movements that may occur during operation of engine 200. In addition to moving shafts (such as the actuated control lever 215), there are also numerous static rods and conduits that also pass through various partitions. Figure 1 or Figure 2 Engines of the type shown may have up to fifty such feeders for both moving and stationary components. Each of these feeders may be required to meet fire safety standards and / or requirements. In some instances, such as in the United States, aircraft engine 100 would need to meet 14 CFR fire safety regulations, according to Parts 23, 25, and 33. To address fire safety, tight manufacturing tolerances are required to achieve precise fits and allow for relative movement.

[0070] In existing technology, ball bearing sliding joints are used to achieve relative movement and meet fire resistance requirements in order to enable the conduit to move like an actuator rod, but this is subject to limitations such as jamming. Figure 3AAn example of a partition feedthrough (BFT) assembly 300 is shown, which has a bearing 305 that is solid, rigid, and non-flexible to accommodate a moving shaft 310. The BFT assembly 300 occupies and seals a circular opening in a partition 315. The moving shaft 310 passes through the bearing 305, which is held in place by a race 320 that allows the bearing 305 to rotate in any direction, however, the amount of rotation is limited by the shaft 310 and the partition 315. The race 320 is fastened to the partition 315 by a mounting flange 325 that overlaps with both the partition 315 and the race 320 on its respective sides. The mounting flange 325 is bolted together with the race 320 in direct contact with the partition 315 but not with the partition 315. Instead, a sliding cap 330 is located between the mounting flange 325 and the partition 315. The sliding cap 330 has a U-shaped cross-section that overlaps with the partition 315 on its two sides. The sliding cap 330 is annular in shape, wherein its inner radius is larger than the inner radius of the central portion of the mounting flange 325, which is also annular. This difference leaves a gap 332 in which the BFT assembly 300 (bearing, race, and flange) can slide as a whole in a lateral direction perpendicular to the partition. As indicated by directional arrow 335, during the lateral sliding movement of the BFT assembly 300, the mounting flange 325 can slide past the sliding cap 330 and be mounted to the partition 315.

[0071] Continue to refer to Figure 3A The multiple degrees of freedom (DOF) used to accommodate the motion of axis 310 are discussed. This motion can be described relative to coordinate system 331, in which the X-axis runs along the length of axis 310, and the YZ plane is the plane of partition 315. The motion of axis 310 (e.g., actuator rod, such as...) Figure 2 In the case of the actuator rod depicted, the moving shaft 310 moves back and forth along the X-axis (translation "UX" along X) and / or spins (rotation "ROTX" around X). Additionally, the bearing 305 allows tilting motion of the shaft 310 (rotation "ROTY" around Y and rotation "ROTZ" around Z, or any combination thereof). Finally, the sliding cap 330 allows planar movement within the gap 332 along the partition 315 (translation "UY" along Y and translation "UZ" along Z, or any combination thereof). Vibrational motion may also occur, which can be a minute combination of all the aforementioned degrees of freedom.

[0072] The challenge with this prior art assembly is that it requires tight manufacturing tolerances (e.g., on the order of 0.2 mm) and surface finishes to achieve the required fit of shaft 310 within the bearing, allowing movement along the aforementioned degrees of freedom. Failure to meet these manufacturing tolerances, as well as misalignment or other variations during the installation of BFT assembly 300, could cause shaft 310 to jam inside bearing 305 during movement, or similarly, sliding cap 330 to jam inside mounting flange 325. Surface contamination of sliding parts can also cause the engine to jam during field operation. Figure 3B An example of shaft 310 being stuck within bearing 305 is shown. Other possible failure modes include bearing 305 being stuck within bearing race 320 and sliding cap 330 being stuck within flange 325.

[0073] Now, referring to existing technologies Figure 4A An exploded view of a partition feedthrough (BFT) assembly 400 is shown. The BFT assembly 400 is shown with overlapping seals 405 and retaining plates 410 to accommodate a static conduit 415. Multiple overlapping seals 405 and retaining plates 410 are required to meet fire safety standards despite the absence of anticipated movement of the static conduit 415. One limitation of the BFT assembly 400 is that the overlapping seals 405 and retaining plates 410 add weight. Another is that manufacturing tolerances and assembly variations can lead to misalignment, allowing fire to penetrate through its path of entry 420, such as... Figure 4B As shown in the diagram.

[0074] These and other problems of the prior art can be overcome through various embodiments. BFT components can be configured to include flexible elements (e.g., spiral segments) that adapt to motion and / or movement associated with BFT. These embodiments and configurations simplify assembly, reliably accommodate tight manufacturing tolerances, and reliably compensate for wear during use and / or due to wear.

[0075] Furthermore, these embodiments and configurations simplify the BFT assembly by reducing the number of components, resulting in fewer moving parts, lighter weight, and smaller volume. These embodiments are capable of having adaptive configurations that allow and / or permit movement along all and / or all of the required degrees of freedom (i.e., ROTX, ROTY, ROTZ, UX, UY, and UZ). For example, various embodiments allow and / or permit movement without the occurrence of sliding body / moving part jamming or flame path openings as described in the prior art, as referenced above. Figure 3A , Figure 3B , Figure 4A as well as Figure 4B As described.

[0076] An example of an electroformed baffle feeder assembly using flexible spiral sections to facilitate movement and maintain the integrity of the fire barrier is now described. Other embodiments are also apparent, such as embodiments not manufactured using electroforming and embodiments having more or fewer spiral sections as described below. Various components or parts referred to above as components 135a, 135b can pass through the baffle feeder assembly. The embodiments are applicable to baffle feeders for moving shafts (such as rotating shafts, control rods, and actuators) and for static (non-moving) conduits (such as cables, pipes, conduits, fuel lines, wires, and harnesses). Although the term “shaft” may be used in the description and with reference to the drawings, the term “shaft” can still be understood to include any and all types of moving shafts and static conduits that will be used with the baffle feeder assembly.

[0077] Now for reference Figure 5A According to some embodiments, a perspective view of a partition feedthrough (BFT) assembly 500 is shown. The BFT assembly 500 generally includes a shaft 510, a channel 512, winding sections 515 and 517, a seat ring 520, and flexible spring elements 525 and 527 (channel 512, winding section 515, and flexible spring element 527 are not shown in the diagram). Figure 5A The spherical element 505 is shown in the diagram. The BFT assembly 500 is assembled or mounted to the partition 530 to allow the shaft 510 to pass through. A cross-sectional view of the BFT assembly 500 is shown in the diagram. Figure 5B The image is shown as a cut-off point along line 5B-5B, which shows all of these elements. This movement of axis 510 can be described relative to coordinate system 531, in which the X-axis runs along the length of axis 510 and the YZ plane is the plane of partition 530.

[0078] The spherical element 505 may include a channel 512 and spiral sections 515, 517. The channel 512 may be oriented along the diameter of the spherical element 505, and the remainder of the spherical element 505 may be hollow rather than solid. The shaft 510 is received by the channel 512 through openings at both ends 513, 514. The channel 512 contacts the circumference of the shaft 510 along its entire length. The shaft 510 may be movable into and out of the channel 512 (e.g., UX, as indicated by arrow 532). The shaft 510 may be rotatable within the channel 512 (e.g., ROTX, as indicated by curved arrow 533). The channel 512 extends through the spherical element 505 and is surrounded by a hollow space disposed between the wall of the channel 512 and the outer wall defining the outer surface of the spherical element 505, as referenced below. Figure 6A , Figure 6B as well as Figure 6C As discussed in more detail.

[0079] The two spiral sections 515 and 517 surround the openings at the two ends 513 and 514 of the channel 512. (Reference) Figure 7A , Figure 7B as well as Figure 7C The more detailed description of the spiral sections 515, 517 allows them to be constructed as flexible, elastic, expandable, and / or compressible, at least due to their thickness, profile shape, and material. The spiral sections 515, 517 act as compression springs oriented perpendicular to the channel 512. The spiral sections 515, 517 can have a natural (uncompressed) state, resulting in the channel 512 having a smaller diameter than the diameter of the shaft 510 through which it is intended to pass. Consequently, the spiral sections 515, 517 can preferably be mounted to the shaft 510 in a partially compressed state. The compressed state of the spiral sections 515, 517, due to the constant force applied by them, creates a tight seal and clamping around the shaft 510, as one or both spiral sections attempt to expand to their natural uncompressed state. This constant force connects the wall of the channel 512 of the spherical element 505 to the shaft 510. This connection prevents openings, gaps, or separation between the shaft 510 and the spherical element 505 during the movement of the shaft 510, which allows paths across the partition 530 (such as unintended paths that could cause a fire) to pass through the partition 530. Due to the flexibility and elasticity of the spiral sections 515, 517, the spiral sections 515, 517 are adapted to be assembled with variations and provide additional degrees of freedom for the movement of the shaft 510 (e.g., UX, UY, UZ, ROTX, ROTY, ROTZ, and combinations thereof).

[0080] For example, the deflection of shaft 510 (e.g., UY, UZ and any combination thereof, as indicated by arrow 534) is facilitated by: (1) the two spiral segments 515, 517 being further compressed toward the deflection direction on one side of shaft 510; and (2) the two spiral segments 515, 517 simultaneously and correspondingly expanding away from the deflection direction on the opposite side of shaft 510.

[0081] As another example, the tilting of shaft 510 (e.g., ROTY, ROTZ, and any combination thereof, as indicated by curved arrow 535) is facilitated by: (1) a portion of the spiral section 515 being further compressed at one end of the channel on one side of shaft 510 in the direction of tilting movement; (2) a portion of the spiral section 515 being expanded at that end of the channel 512 on one side of shaft 510 in the opposite direction of tilting movement; (3) a portion of another spiral section 517 being expanded at the other end of the channel on one side of shaft 510 in the direction of tilting movement; and (4) a portion of another spiral section 517 being further compressed at the other end of the channel 512 on one side of shaft 510 in the opposite direction of tilting movement.

[0082] A spherical element 505 is located within a seat ring 520, which allows the spherical element 505 to rotate freely in any direction, thus providing additional rotational degrees of freedom (e.g., ROTX, ROTY, ROTZ, and any combination thereof). The BFT assembly 500 further includes two flexible spring elements 525, 527 having annular shapes and configured to surround the seat ring 520. Figure 5B As shown, the flexible spring elements 525 and 527 are positioned opposite each other. The flexible spring elements 525 and 527 are narrower around their perimeter and are positioned on either side of the partition 530. Therefore, except at the perimeter, the distance between the flexible spring elements 525 and 527 is wider than the width of the partition 530, wherein the narrowing results in a distance slightly smaller than the width of the partition 530. The flexible spring elements 525 and 527 are mounted in a compressed state, such that they apply pressure to the partition 530. As shown, the partition 530 is clamped on either side by the flexible spring elements 525 and 527, held by the compressive force applied to the partition 530 due to its narrower perimeter.

[0083] Flexible spring elements 525 and 527 overlap with partition 530 on each side and can be disposed between flanges 536, 537, and 539. The overlapping layers of flanges 536, 537, and 539 and flexible spring elements 525 and 527 can be bolted together using bolts 540 to hold them together. Flanges 536, 537, and 539 can be configured to cooperate with seat ring 520. As shown, seat ring 520 can be positioned in an annular recess in flanges 536, 537, and 539.

[0084] In some embodiments, such as Figure 5A As shown, flanges 536, 537, and 539 can be configured as semicircular plates extending annularly by 180 degrees. In the case of semicircular plates, the halves overlap at the split joint 542 to ensure fire resistance and tortuous path for flames. In some embodiments, this configuration facilitates mounting the BFT assembly 500 onto the partition 530.

[0085] The radius of flange 537 (in this embodiment, between flexible spring elements 525, 527) can be smaller than the radius of the opening in partition 530, thus leaving a gap 545 that allows partition feedthrough assembly 500 to slide perpendicularly to partition 530 as a whole. As indicated by arrow 546, this sliding movement provides additional translational degrees of freedom (e.g., UY, UZ, and any combination thereof). This movement has a maximum range equal to the size of the gap 545 between flange 537 and partition 530.

[0086] In addition to the degrees of freedom UX, UY, UZ, ROTX, ROTY, and ROTZ, the spiral sections 515 and 517 and the flexible spring elements 525 and 527 also allow the shaft 510 and the BFT assembly 500 to vibrate as a whole. These vibrational movements can be combinations of minute amounts of all the aforementioned degrees of freedom.

[0087] Now for reference Figure 6A According to an embodiment of this disclosure, a perspective view of a spherical element 600 is shown. The spherical element 600 can be included in a spherical feedthrough assembly similar to the spherical feedthrough assembly previously shown and described with respect to the BFT assembly 500 and the spherical element 505.

[0088] The spherical element 600 has a spherical housing 602. In embodiments in which the spherical element 600 is manufactured using an electroforming process, one or more slots 605 in the spherical housing 602 serve as pathways for dissolving a consumable mandrel during manufacturing, and have cutout shapes designed to provide the additional benefit of weight reduction without sacrificing strength or integrity.

[0089] The spherical housing 602 also has a receiving shaft (such as, as referenced above). Figure 5A and Figure 5B The described axis 510) has channel 610. This channel 610 is similar to the one referenced above. Figure 5B The channel 512 shown and described extends over the full diameter of the spherical element 600.

[0090] Figure 6B Show Figure 6A The diagram shows a cross-sectional view of the spherical element 600. This cross-sectional view shows a hollow space 611 between the spherical shell 602 and the inner surface 612 of the channel 610. The hollow space 611 can extend circumferentially around the channel 610. The hollow space can be defined by the inner surface 612 of the channel 610, the spherical shell 602, and the spiral sections 615, 617. The cross-sectional view also shows that the circular ends 613, 614 of the channel 610 are each circumferentially surrounded by the spiral sections 615, 617.

[0091] Figure 6C Show along Figure 6B The cross-section is taken by line 6C-6C. A slot 605 in the spherical shell 602 opens into the hollow space 611. Swirling sections 615 and 617 are disposed between the spherical shell 602 and the inner surface 612 of the channel 610. In some embodiments, the material thickness of the swing sections 615 and 617 is thinner than that of the spherical shell 602 and / or the inner surface 612 of the channel 610. Some embodiments of the swing sections 615 and 617 are referenced. Figure 7A , Figure 7B as well as Figure 7CAnd a more detailed description.

[0092] The spiral sections 615 and 617 are flexible and mounted in a compressed state around an axis (not shown). Any surface contamination or openings caused by wear at the sliding surfaces between the spiral sections 615 and 617 and the axis in the channel 610 are compensated for by recovering from the compressed state of the spiral sections 615 and 617, which remain in constant contact with the axis during translational and rotational movements (e.g., UX and ROTX). The compressed state of the spiral sections 615 and 617 can also be used to abut the contacting spherical element 600 against the axis described above. Figure 5B The seat ring 520 described and shown is similar to the surrounding seat ring (not shown) pressed to further prevent any openings in the partition feed assembly during the rotation of the spherical element 600 (e.g., ROTX, ROTY, ROTZ, and combinations thereof).

[0093] Exemplary parameters for the feedthrough assembly may include the profile shape, the thickness of the spiral sections 615, 617, and the number of spiral sections 615, 617. Each of these parameters affects the flexibility of the spiral sections 615, 617 and / or the overall range of motion allowed by the BFT assembly 500 as a whole.

[0094] The spiral sections 615 and 617 can include various configurations and shapes. In one aspect, in some embodiments, the spiral sections 615 and 617 can have a periodic profile shape relative to their profile shape. Exemplary periodic profile shapes are as follows: Figure 7A The wavy profile 705 is shown. Alternatively, in other respects, the spiral sections 615, 617 can have different shape profiles, including as shown in the figure. Figure 7B The wavy U-shaped profile 710 shown is as follows Figure 7C The corrugated Ω-shaped profile 715 is shown. Other possible profiles are envisioned, including triangular and accordion-style bellows (not shown).

[0095] exist Figure 7A , Figure 7B as well as Figure 7CIn the examples shown, each profile can have flexible portions (e.g., curved sections 720, 722, 724) where the material bends during compression and expansion. For example, compression of the spiral sections 615, 617 reduces the radius of curvature of these curved sections 720, 722, 724, and expansion increases that radius. Each profile can also have non-flexible portions (e.g., straight sections 725, 727, 729) where the material moves intact during compression and expansion. For example, compression of the spiral sections brings these straight sections 725, 727, 729 closer together, and expansion moves them apart. The profile shape can be configured to define the range of these movements. For example, an embodiment with respect to the wavy profile 705 can have greater compressibility than an embodiment with respect to the corrugated U-shaped profile 710, and an embodiment with respect to the corrugated Ω-shaped profile 715 can have less compressibility than the corrugated U-shaped profile.

[0096] For any given profile, the number of each type of segment (flexible or non-flexible) can also determine the range of motion. Increasing the number of curved segments 720, 722, 724, for example, increases the maximum possible tilt angle, but at the cost of potentially reducing the amount of deflection, because curved segments 720, 722, 724 can have a minimum radius beyond which they cannot be further compressed.

[0097] Regarding thickness, in some embodiments, the spiral sections 615, 617 can have a different thickness than other parts of the feedthrough assembly (such as the spherical housing 602 of the spherical element 600 and / or the inner surface 612 of the channel 610). In some embodiments, for example, the spiral sections 615, 617 have a thickness between ten millimeters (mm) and sixty millimeters (mm). Greater thickness results in greater stiffness, which leads to less compressibility, and thinner thickness results in less stiffness, which leads to greater compressibility.

[0098] As noted above, Figure 5A and Figure 5B The BFT assembly 500 depicted uses a single pair of spiral sections 515, 517 with a spherical element 505 at both ends 513, 514 of the channel 512 for the shaft 510. The paired spiral sections 515, 517 provide both translational and rotational degrees of freedom, and the spherical element 505 provides an additional rotational degree of freedom. In some embodiments, additional spiral sections can be added, making the spherical element 505 somewhat unnecessary.

[0099] Now for reference Figure 8AAccording to an embodiment of this disclosure, a perspective view of a septum feedthrough (BFT) assembly 800 having two pairs of spiral sections 805, 807, 810, and 812 is shown. Spiral sections 805 and 810 are located on one side of a septum 815, and spiral sections 807 and 812 are located on the opposite side of the septum 815. Although spiral sections 807 and 812 are... Figure 8A The perspective view is obscured, and all four spiral segments 805, 807, 810, and 812 are still along... Figure 8A The line 8B-8B is cut off. Figure 8B The cross-sectional view shows the two sides of the partition 815.

[0100] The diaphragm feedthrough assembly 800 has a means of receiving a shaft 825 (such as, as referenced above). Figure 5A and Figure 5B And the described axis 510) channel 820.

[0101] BFT assembly 800 is assembled or mounted to partition 815 to allow shaft 825 to pass through. This movement of shaft 825 can be described relative to coordinate system 826, where the X-axis is along the length of shaft 825 and the YZ plane is the plane of partition 815.

[0102] Channel 820 receives shaft 825 through openings at each of ends 828, 829. Channel 820 is similar to that referenced above. Figure 5B , Figure 6A , Figure 6B as well as Figure 6C Channels 512 and 610 are shown and described. Channel wall 827 contacts the circumference of shaft 825 along its length. Shaft 825 is not only movable into and out of channel 820 (e.g., UX), but also rotatable within channel 820 (e.g., ROTX).

[0103] Figure 8B A cross-sectional view of the BFT assembly 800 is shown, wherein the ends 828 and 829 of the channel 820 are circumferentially surrounded by spiral sections 805 and 807, respectively. The BFT assembly 800 also has shields 830 and 832 on both sides of the partition 815. Spiral sections 805 and 807 are disposed between the channel wall 827 and the shields 830 and 832. On one side of the partition 815, shield 830 is disposed between spiral section 805 and spiral section 810. Similarly, on the other side of the partition 815, shield 832 is disposed between spiral section 807 and spiral section 812.

[0104] Beyond the spiral sections 810 and 812, the diaphragm feedthrough assembly 800 has sleeves 835 and 837 extending further along the diaphragm 815. Sleeves 835 and 837 are bolted together by a plurality of bolts 840 through the diaphragm 815, which holds the BFT assembly 800 in place. When the BFT assembly 800 is fastened to the diaphragm 815 in place by the bolts 840 such that the channel wall 827 contacts the shaft 825 along its length, there is no gap between the diaphragm 815 and the channel wall 827. When fastened in place, the internal volume of the BFT assembly 800 is divided into two hollow sections 842 and 844 on either side of the diaphragm.

[0105] In some embodiments, the BFT component 800 can be of a uniform configuration. In some embodiments, such as Figure 8A As shown, the spiral sections 805, 807, 810, 812, shields 830 and 832, and sleeves 835 and 837 can be configured as semicircular halves extending annularly by 180 degrees. The semicircular halves overlap at the split connection 845 to ensure fire resistance and a tortuous path for the flame. In some embodiments, this configuration facilitates the mounting of the BFT assembly 800 onto the partition 815.

[0106] The first pair of spiral sections 805, 807 at the end of channel 820 provide a full set of rotational and translational degrees of freedom for axis 825. These degrees of freedom include sliding along UX as indicated by arrow 851, lateral deflection along UY and UZ as indicated by arrow 852, axial rotation ROTX as indicated by curved arrow 853, tilting ROTY and ROTZ as indicated by curved arrow 854, and combinations thereof.

[0107] The second pair of spiral sections 810, 812 provides an additional set of rotational and translational degrees of freedom for axis 825. These degrees of freedom include lateral deflections UY and UZ as indicated by arrow 855, tilting ROTY and ROTZ as indicated by curved arrow 856, and combinations thereof, which are separate from and independent of the degrees of freedom provided by the first pair of spiral sections 805, 807.

[0108] In addition to the degrees of freedom UX, UY, UZ, ROTX, ROTY, and ROTZ, the spiral sections 805, 807, 810, and 812 also allow the shaft 825 and the BFT assembly 800 to vibrate as a whole. These vibrational movements can be combinations of minute amounts of all the aforementioned degrees of freedom.

[0109] In some embodiments, the second pair of spiral segments 810, 812 have higher stiffness than the first pair of spiral segments 805, 807 adjacent to the channel 820. This higher stiffness can be achieved by having a different profile shape, number of spirals, thickness, or combination thereof relative to the first pair of spiral segments 805, 807. Consequently, the range of motion provided can be less or greater than that from the first pair of spiral segments 805, 807 adjacent to the channel 820, depending on their relative stiffness and length.

[0110] In some embodiments, the winding sections 805 and 807 are not exactly a pair, but have different thicknesses, numbers of windings, and / or profile shapes relative to each other. In some embodiments, the winding sections 810 and 812 are not exactly a pair, but have different thicknesses, numbers of windings, and / or profile shapes relative to each other. Therefore, in some embodiments, any two or more of the winding sections 805, 807, 810, and 812 may be different from each other.

[0111] exist Figure 8B In the example, the first pair of spiral sections 805, 807 have three spirals, and the second pair of spiral sections 810, 812 have five spirals, wherein the second pair of spiral sections 810, 812 has a greater thickness than the first pair of spiral sections 805, 807. As a result, the tilting range from the second pair of spiral sections 810, 812 will be greater because there are more curved sections to compress and expand. However, the tilting motion will be reduced to a minimum on the first pair of spiral sections 805, 807 adjacent to the shaft 825 before the second pair of spiral sections 810, 812 are engaged to allow for an additional tilting range. This example illustrates that, in some embodiments, the additional range of motion provided by the second pair of spiral sections 810, 812 is an extension of the range provided by the first pair of spiral sections 805, 807. If an even greater range is required, embodiments with three or more pairs of spiral segments can be used, wherein different thicknesses, profile shapes, and numbers of spirals are required to achieve the desired range of motion and stiffness. In various embodiments, additional pairs of spiral segments can be located between the first two pairs (e.g., in shields 830, 832), outside the two pairs (e.g., in sleeves 835, 837), or any combination of both. Furthermore, in some embodiments, multiple shields and / or sleeves may be present between pairs of spiral segments.

[0112] like Figure 8B As shown, the two pairs of spiral sections 805, 807 and 810, 812 have a U-shaped profile 710, the first pair of spirals (adjacent to the channel) has an optimal thickness of 20 mm, and the second pair has an optimal thickness of 50 mm.

[0113] The advantage of BFT assembly 800 over the prior art or some embodiments (such as BFT assembly 500 described above) is that it does not contain additional components such as flanges, seat rings, sliding caps, spring elements, etc. In comparison, for Figure 3A The prior art partition feedthrough assembly 300 described herein has a total volume of approximately 0.5 cubic inches and a weight of approximately 0.15 pounds. (See reference...) Figure 8A and Figure 8B The described diaphragm feedthrough assembly 800 can have a volume of approximately 0.1 cubic inches and a weight of 0.3 pounds, representing significant savings in size and weight while providing improved reliability and fire protection. Some embodiments are up to five times lighter and have lower costs due to reductions in certain aspects, relaxed manufacturing tolerances, and simplified mechanisms compared to prior art designs.

[0114] Some embodiments may also employ a protective wear coating on some or all of the sliding surfaces of the feedthrough assembly. Examples of usable dry film lubricants include polytetrafluoroethylene (PTFE), graphite, and molybdenum disulfide. For example, Figure 9 Shown as referenced above Figure 8A and Figure 8B The described BFT assembly 800 is similar to the BFT assembly 900. According to an embodiment of this disclosure, a dry film lubricant 905 is applied to the inner surface 910 of the channel 915 of the BFT assembly 900.

[0115] As another example, Figure 10A Shown as referenced above Figure 5A and Figure 5B The described BFT assembly 500 is similar to the BFT assembly 1000. According to another embodiment of this disclosure, a dry film lubricant 1005 is applied to the inner surface 1010 of the channel 1015 of the BFT assembly 1000, a second dry film lubricant 1020 is applied between the seat ring 1025 and the spherical element 1030, and a third dry film lubricant 1035 is applied between the paired flexible spring elements 1040, 1042 and the partition 1050. Any combination of the dry film lubricants 1005, 1020, and 1035 can be used, and these dry film lubricants 1005, 1020, and 1035 can be the same as or different from each other.

[0116] Figure 10BA close-up view of the spherical element 1030 is shown, wherein a shaft 1045 is positioned within a channel 1015. In some embodiments, according to embodiments of this disclosure, the shaft 1045 can also be coated or covered with a wear sleeve 1055 to reduce friction and improve sealing. In some embodiments, the shaft 1045 is made of a wear-resistant material, such as Nitronic™ alloys. Nitronic is a trademark name for a batch of nitrogen-strengthened stainless steel alloys. These are austenitic stainless steels (e.g., Nitronic 60).

[0117] Figure 10A Also illustrated Figure 5B Another example of an embodiment of the BFT assembly is shown, in which flexible spring elements 1040, 1042 are stacked on one side of partition 1050, thus requiring only two flanges 1060, 1065 for assembly. In this scenario, the flexible spring elements 1040, 1042 have a smaller radius than the partition opening, thereby providing the clearance 1070 necessary for sliding movement. The advantages of this construction (relative to the one referenced above)... Figure 5B The described BFT component 500 includes reduced weight and assembly complexity.

[0118] In some embodiments, at least a portion of the BFT assembly is manufactured using electroforming, a technique that combines ease of assembly with lower cost and lighter weight. The electroforming process provides high precision and is more economical than other manufacturing methods.

[0119] Electroforming is a metal forming process used to create metal objects by electrodeposition on a model called a mandrel. The outer surface of the mandrel forms the inner surface of the desired shape. The process involves passing direct current through an electrolyte containing the metal salt being electroformed. The anode is the solid metal being electroformed, and the cathode is the mandrel onto which the electroformed material is electroplated (deposited). The process continues until the desired electroformed thickness is achieved. The mandrel is then removed by physical separation, melting or dissolving it. The surfaces of the finished portions that are in close contact with the mandrel (e.g., the channels of a feeder) are finely replicated relative to the original and do not undergo the shrinkage typically experienced in casting metal objects in a foundry or with tool marks from milling.

[0120] As a result of the electroforming process, the UX and ROTX movements of the shaft are smooth because there are no cracks or other irregularities during such movements that would cause friction and damage to the shaft. This allows for a high-quality fit between the shaft and the channel without requiring high manufacturing tolerances and helps prevent the shaft from getting stuck in the channel.

[0121] Candidate materials used in the electroforming process (particularly for (but not limited to) the winding sections and channels) include nickel or its high-strength alloys. The electroforming process facilitates variable stiffness and thickness of the winding sections relative to other parts of the diaphragm feedthrough assembly. Consumable mandrels are made of materials such as aluminum or other compatible, soluble, and easily machinable metals. Aluminum is advantageous because it provides very easy machinability and is thus able to dissolve from the electroformed material in sodium hydroxide. In other embodiments, other manufacturing methods may also be used to manufacture at least portions of the diaphragm feedthrough assembly, including deep drawing, cold forming (rolling), stamping, and hydroforming. In some embodiments, other parts and components of the assembly are made of steel, ferrochrome (R), or other suitable metals that meet fire resistance, vibration, and wear requirements.

[0122] Further aspects of this disclosure are provided by the subject matter of the following terms.

[0123] A feedthrough assembly for a partition includes: a channel configured to extend through the partition and allow a member to pass through the channel from a first side of the partition to a second side of the partition; and at least one spiral section extending around an end of the channel, wherein the spiral section is configured to allow lateral deflection and tilting of the member.

[0124] Any feedthrough assembly as described in the foregoing clauses, wherein the spiral section is a first spiral section, the end of the channel is disposed on a first side of the partition, the feedthrough assembly includes a second spiral section extending around another end of the channel disposed on a second side of the partition, and the second spiral section is configured to cooperate with the first spiral section to allow lateral deflection and tilting of the member.

[0125] Any feedthrough assembly as described in the foregoing clauses, wherein a first spiral section extends circumferentially around the end of the channel located on a first side of the partition, and a second spiral section extends circumferentially around the other end of the channel located on a second side of the partition.

[0126] Any feedthrough assembly as described in the foregoing clauses, wherein at least one swivel section is configured to allow movement of the member relative to the diaphragm by at least one of compression and expansion of at least a portion of the swivel section.

[0127] Any feedthrough assembly as described in the foregoing clauses, wherein a portion of the swirl section comprises at least one flexible member and a plurality of non-flexible members, and compression and expansion of the portion of the swirl section comprises movement of at least one flexible member and non-flexible members.

[0128] Any feedthrough assembly as described in the foregoing clauses, wherein at least one flexible member is a bending member, and movement of at least one flexible member includes a change in the radius of curvature of the bending member.

[0129] Any feedthrough assembly as described in the foregoing clauses, wherein the non-flexible member of the spiral section is a straight member, and movement of the non-flexible member includes a change in the distance between at least two straight members.

[0130] Any feedthrough assembly as described in the foregoing clauses, wherein lateral deflection is a movement of the member within the channel in any direction perpendicular to the long axis of the channel.

[0131] Any feedthrough assembly as described in the foregoing clauses, wherein tilting is a movement of the member that causes the member to pass through the partition at an oblique angle relative to the surface of the partition.

[0132] Any feedthrough assembly as described in the foregoing clauses, wherein movement of the component relative to the partition includes sliding of the component through the channel.

[0133] Any feedthrough assembly as described in the foregoing clauses, wherein the movement of the member relative to the partition includes axial rotation of the member.

[0134] Any feedthrough assembly as described in the foregoing clauses, wherein the movement of the member relative to the partition includes the vibratory movement of the member in the channel.

[0135] Any feedthrough assembly as described in the foregoing clauses, wherein the partition is a fire barrier and the swivel section applies a force to connect the member to the channel to prevent the path used to allow fire to pass through the partition from opening during the movement of the member relative to the partition.

[0136] Any feedthrough assembly as described in the foregoing clauses, wherein, when mounted together with the component in the partition, the swirl section is in a compressed state, the compressed state applying a force that connects the component to the channel.

[0137] Any feedthrough assembly described in the foregoing clauses further includes: a spherical section that surrounds the channel; and an annular seat ring section positioned to surround the spherical section and configured to allow the spherical section to rotate in any direction, wherein the tilt is a first tilt, and the spherical section is configured to allow a second tilt relative to the partition by rotating the member within the seat ring section.

[0138] Any feedthrough assembly described in the foregoing clauses further includes: a first flexible element in an annular shape and positioned to surround a seat ring section on a first side of the partition, and a second flexible element in an annular shape and positioned to surround a seat ring section on a second side of the partition, wherein the first and second flexible elements are connected to each other by a plurality of flanges coupled to the partition, and wherein the lateral deflection is a first lateral deflection, and both the first and second flexible elements are configured to allow a second lateral deflection of the member relative to the partition, and the second lateral deflection is a lateral sliding of the feedthrough assembly in any direction along the partition.

[0139] Any feedthrough assembly described in the foregoing clauses further includes a dry film lubricant applied to the inner surface of the seat ring section, wherein the dry film lubricant is at least one selected from polytetrafluoroethylene (PTFE), graphite, and molybdenum disulfide.

[0140] Any feedthrough assembly as described in the foregoing clauses, wherein the swirl section is a first swirl section, the lateral deflection is a first lateral deflection, and the tilt is a first tilt, and the feedthrough assembly further includes a second swirl section of an annular shape extending around the first swirl section, wherein the second swirl section is configured to allow movement of a member relative to a partition, and wherein the movement of the member relative to the partition allowed by the second swirl section includes a second lateral deflection and a second tilt.

[0141] Any feedthrough assembly as described in the foregoing clauses, wherein the end of the channel is disposed on a first side of the partition, and the feedthrough assembly further includes: a third spiral section extending around the other end of the channel disposed on a second side of the partition, wherein the third spiral section is configured to cooperate with the first spiral section to allow a first lateral deflection and a first tilt of the member; and a fourth spiral section extending around the third spiral section, wherein the fourth spiral section is configured to cooperate with the second spiral section to allow a second lateral deflection and a second tilt of the member.

[0142] Any feedthrough assembly as described in the foregoing clauses, wherein a first spiral section extends circumferentially around the end of the channel located on a first side of the partition, a third spiral section extends circumferentially around the other end of the channel located on a second side of the partition, a second spiral section extends circumferentially around the first spiral section, and a fourth spiral section extends circumferentially around the third spiral section.

[0143] Any feedthrough assembly as described in the foregoing clauses, wherein the second lateral deflection is the movement of the member within the channel in any direction perpendicular to the long axis of the channel.

[0144] Any feedthrough assembly as described in the foregoing clauses, wherein the second tilt is a movement of the member relative to the surface of the partition at an oblique angle through the partition.

[0145] Any feedthrough assembly as described in the foregoing clauses, wherein the second spiral section is configured to allow movement of the member relative to the partition by at least one of compression and expansion of at least a portion of the second spiral section.

[0146] Any feedthrough assembly as described in the foregoing clauses, wherein the second winding section has a greater stiffness than the first winding section.

[0147] Any feedthrough assembly described in the foregoing clauses, wherein the first spiral section has a thickness of 20 mm, the second spiral section has a thickness of 50 mm, and the other sections of the feedthrough assembly have a thickness greater than 50 mm.

[0148] Any feedthrough assembly as described in the foregoing clauses, wherein the feedthrough assembly comprises two segments, wherein each segment comprises half of a channel, half of a first spiral segment, and half of a second spiral segment, wherein one segment partially overlaps with the other segment.

[0149] Any feedthrough assembly as described in the foregoing clauses, wherein the feedthrough assembly is manufactured using electroforming technology and is composed of at least one of nickel and a high-strength nickel alloy.

[0150] Any feedthrough assembly described in the foregoing clauses further includes a dry film lubricant applied to the inner surface of the channel, wherein the dry film lubricant is at least one selected from polytetrafluoroethylene (PTFE), graphite, and molybdenum disulfide.

[0151] Any feedthrough assembly as described in the foregoing clauses, wherein the components include at least one of a moving shaft, a rotating shaft, a control rod, an actuator, a static conduit, a cable, a tube, a pipe, a fuel line, wire, and a wiring harness.

[0152] Any feedthrough assembly as described in the foregoing clauses, wherein the winding section has a thickness ranging from ten millimeters (mm) to sixty millimeters.

[0153] Any feedthrough assembly as described in the foregoing clauses, wherein other sections of the feedthrough assembly have a thickness greater than that of the winding section.

[0154] Any feedthrough assembly described in the foregoing clauses, wherein the swirl section has a periodic profile shape, and the periodic profile shape is one of a wavy profile, a corrugated U-shaped profile, a Z-shaped profile, and a corrugated Ω-shaped profile.

[0155] A feedthrough assembly for a partition includes: a channel having a first end and a second end, wherein the channel is configured to extend through the partition and to allow a member to pass through the channel from a first side of the partition to a second side of the partition; a first spiral section extending circumferentially around the first end of the channel on the first side of the partition; and a second spiral section extending circumferentially around the second end of the channel on the second side of the partition, wherein the first and second spiral sections are configured to allow movement of the member relative to the partition, and wherein the movement of the member relative to the partition allowed by the first and second spiral sections includes lateral deflection and tilting.

[0156] Any feedthrough assembly described in the foregoing clauses further includes: a third spiral section of an annular shape that surrounds the first spiral section; and a fourth spiral section of an annular shape that surrounds the second spiral section, wherein each of the third and fourth spiral sections is configured to allow movement of a member relative to a partition, wherein the lateral deflection is a first lateral deflection, the tilt is a first tilt, and wherein the movement of the member relative to the partition allowed by the third and fourth spiral sections includes a second lateral deflection and a second tilt.

[0157] While the foregoing description relates to certain embodiments, it should be noted that other variations and modifications will be readily apparent to those skilled in the art and can be made without departing from the spirit or scope of this disclosure. Furthermore, features described in conjunction with one embodiment may be used in conjunction with other embodiments, even if not expressly stated above.

Claims

1. A feedthrough assembly for a partition, the feedthrough assembly comprising: A channel, configured to extend through the partition and allow a component to pass through the channel from a first side of the partition to a second side of the partition; as well as At least one spiral section extends around the end of the channel, wherein the spiral section is configured to allow lateral deflection and tilting of the member; Wherein, the at least one spiral section is configured to allow the member to move relative to the partition by at least one of compression and expansion of at least a portion of the at least one spiral section, and The at least one spiral section includes at least one flexible member and a plurality of non-flexible members, and the compression and expansion of the at least one spiral section includes the movement of the at least one flexible member and the non-flexible members.

2. The feedthrough component according to claim 1, wherein, The spiral section is a first spiral section, the end of the channel is disposed on a first side of the partition, the feedthrough assembly includes a second spiral section extending around another end of the channel disposed on a second side of the partition, and the second spiral section is configured to cooperate with the first spiral section to allow lateral deflection and tilting of the member.

3. The feedthrough component according to claim 1, wherein, The at least one flexible member is a bending member, and the movement of the at least one flexible member includes a change in the radius of curvature of the bending member. The non-flexible component of the spiral section is a straight component, and the movement of the non-flexible component includes a change in the distance between at least two straight components.

4. The feedthrough component according to claim 1, wherein, The lateral deflection is the movement of the component within the channel in any direction perpendicular to the long axis of the channel, and The tilting is the movement of the component that causes it to pass through the partition at an oblique angle relative to the surface of the partition.

5. The feedthrough component according to claim 1, wherein, The movement of the component relative to the partition includes at least one of the following: the component sliding through the channel, the component rotating axially, and the component vibrating in the channel.

6. The feedthrough component according to claim 1, wherein, The partition is a fire barrier, and the swivel section applies a force to connect the member to the channel to prevent the path used to allow fire to pass through the partition from opening during the movement of the member relative to the partition. When the component is installed in the partition, the spiral section is in a compressed state, and the compressed state applies a force to connect the component to the channel.

7. The feedthrough assembly according to claim 1, further comprising: A spherical segment that surrounds the channel; as well as A ring-shaped seat section is positioned to surround the spherical section and configured to allow the spherical section to rotate in any direction. The tilt is a first tilt, and the spherical section is configured to allow the member to tilt relative to the partition by rotating within the seat ring section.

8. The feedthrough assembly according to claim 7, further comprising: A first flexible element in an annular shape and positioned to wrap around the seat ring section on the first side of the partition; as well as A second flexible element, in an annular shape and positioned to wrap around the seat ring section on the second side of the partition. The first flexible element and the second flexible element are connected to each other using a plurality of flanges attached to the partition, and The lateral deflection is a first lateral deflection, and both the first flexible element and the second flexible element are configured to allow a second lateral deflection of the member relative to the partition, and the second lateral deflection is the lateral sliding of the feedthrough assembly in any direction along the partition.

9. The feedthrough assembly of claim 7, further comprising a dry film lubricant applied to the inner surface of the seat ring section, wherein, The dry film lubricant is selected from at least one of polytetrafluoroethylene, graphite, and molybdenum disulfide.

10. The feedthrough component according to claim 1, wherein, The winding section is a first winding section, the lateral deflection is a first lateral deflection, and the tilt is a first tilt, and the feedthrough assembly further includes: A second, annular spiral section extends around the first spiral section, wherein the second spiral section is configured to allow movement of the member relative to the partition, and The movement of the component relative to the partition, permitted by the second swirling section, includes a second lateral deflection and a second tilt.

11. The feedthrough assembly according to claim 10, wherein, The end of the channel is disposed on the first side of the partition, and the feedthrough assembly further includes: A third spiral section extends around the other end of the channel located on the second side of the partition, wherein the third spiral section is configured to cooperate with the first spiral section to allow a first lateral deflection and a first tilt of the member; and A fourth spiral section extends around the third spiral section, wherein the fourth spiral section is configured to cooperate with the second spiral section to allow a second lateral deflection and a second tilt of the member.

12. The feedthrough assembly according to claim 10, wherein, The second lateral deflection is the movement of the member within the channel in any direction perpendicular to the long axis of the channel, and The second tilt is a movement of the member that causes it to pass through the partition at an oblique angle relative to the surface of the partition.

13. The feedthrough assembly according to claim 10, wherein, The second spiral section is configured to allow the member to move relative to the partition by at least one of compression and expansion of at least a portion of the second spiral section.

14. The feedthrough assembly according to claim 10, wherein, The first winding section has a thickness of 20 mm, the second winding section has a thickness of 50 mm, and the other sections of the feedthrough assembly have a thickness greater than 50 mm.

15. The feedthrough assembly according to claim 1, wherein, The feedthrough assembly is manufactured using electroforming technology and is composed of at least one of nickel and a high-strength nickel alloy.

16. The feedthrough assembly of claim 1, further comprising a dry film lubricant applied to the inner surface of the channel, wherein, The dry film lubricant is selected from at least one of polytetrafluoroethylene, graphite, and molybdenum disulfide.

17. The feedthrough assembly according to claim 1, wherein, The component includes at least one of a moving shaft, a rotating shaft, a control rod, an actuator, and a static conduit.

18. The feedthrough component according to claim 1, wherein, The spiral section has a thickness ranging from 10 mm to 60 mm, and the other sections of the feedthrough assembly have a thickness greater than that of the spiral section.

19. The feedthrough assembly according to claim 1, wherein, The spiral section has a periodic profile shape, and the periodic profile shape is one of a wavy profile, a wavy U-shaped profile, a Z-shaped profile, and a wavy Ω-shaped profile.

Images