Dual gimbal vibration reduction system

Abstract

A dual deflection ring system includes a pair of components that rotate relative to one another about an axis of rotation. One or more deflection rings are disposed between the components. The one or more deflection rings include two sets of pockets configured to provide two grades of compressibility in series between the components. The two sets of pockets project radially with respect to the axis of rotation and are compressible between the components.

Description

Technical Field

[0001] This disclosure relates to noise, vibration, and harshness (NVH) in rotating machinery and systems, and more specifically, to reducing NVH by using a deflectable ring disposed between two relatively rotating components, such as a shaft and a housing in a vehicle transmission. Background Technology

[0002] In a rotating system, one component (such as a shaft) rotates relative to another component (such as a housing). In some cases, both components can rotate, such as when a shaft is housed in a hollow shaft. Examples of rotating systems include mechanical transmissions, electric motors, pumps, and other machines. In a rotating system, NVH (Noise, Vibration, and Harshness) can be generated due to several factors. For example, meshing gears may be attached to a rotating shaft, generating gear noise. Additionally, shaft movement may occur during rotation due to factors such as deflection, clearance, and load. The generated NVH can be transmitted through components connected to or in contact with the source component. Transmission to other components can amplify the NVH.

[0003] The goal is to mitigate and minimize NVH (Noise, Vibration, and Harshness) to increase the lifespan of rotating systems and avoid unpleasant sensations for people, such as equipment operators. In the case of automobiles (such as passenger vehicles), occupants of moving vehicles will likely experience NVH at least to some extent. In some cases, NVH can become uncomfortable at different speeds, thus the aim is to avoid it. In some situations, NVH is mitigated by creating a sound barrier to block transmission to unwanted destinations. In others, it can be minimized with extremely tight tolerances, which can be complex and difficult to maintain. The aim is to minimize NVH in rotating systems in an efficient and effective manner.

[0004] Furthermore, other desirable features and characteristics of this disclosure will become apparent from the accompanying drawings and the foregoing technical and background information, as well as from the following detailed description and the appended claims. Summary of the Invention

[0005] In some embodiments, a dual deflection ring system includes a first component and a second component, wherein these components rotate relative to each other about a rotation axis. At least one deflection ring is disposed between these components and includes two sets of pockets configured to provide two levels of compressibility in series between the components. The two sets of pockets project radially relative to the rotation axis and are compressible between the first and second components.

[0006] In an additional embodiment, the at least one deflection ring includes an inner deflection ring and an outer deflection ring, wherein the outer deflection ring is positioned radially outward relative to the inner deflection ring, wherein the first set of pockets is defined by the outer deflection ring, and the second set of pockets is defined by the inner deflection ring.

[0007] In an additional embodiment, a reaction ring is disposed between the inner deflection ring and the outer deflection ring, wherein the reaction ring is substantially incompressible.

[0008] In an additional embodiment, the reaction ring includes at least one limiter shaped as a radial protrusion on the reaction ring, the radial protrusion being configured to limit compression of the inner deflection ring and the outer deflection ring.

[0009] In an additional embodiment, the reaction ring is positioned radially outward relative to the outer deflection ring.

[0010] In an additional embodiment, the reaction ring is disposed between the inner deflection ring and the outer deflection ring.

[0011] In an additional embodiment, the first component includes a shaft, and the second component includes a housing, and the dual deflection ring system includes a bearing disposed between the shaft and the housing, wherein the at least one deflection ring is disposed between the bearing and the housing.

[0012] In an additional embodiment, the at least one deflection ring includes an inner deflection ring and an outer deflection ring, the outer deflection ring being positioned radially outward relative to the inner deflection ring, a first set of pockets being defined by the outer deflection ring, and a second set of pockets being defined by the inner deflection ring, the reaction ring being positioned radially between the inner deflection ring and the outer deflection ring, and the reaction ring comprising a series of discrete enlarged masses.

[0013] In an additional embodiment, the at least one deflection ring includes an inner deflection ring and an outer deflection ring, the outer deflection ring being disposed radially outward relative to the inner deflection ring, a first set of pockets being defined by the outer deflection ring, and a second set of pockets being defined by the inner deflection ring, a first reaction ring being disposed radially between the inner deflection ring and the outer deflection ring, and a second reaction ring being disposed radially outward relative to the outer deflection ring.

[0014] In an additional embodiment, the at least one deflection ring includes only one deflection ring, wherein the one deflection ring includes both a first set of pockets and a second set of pockets, the first set of pockets protruding in a radially inward direction and the second set of pockets protruding in a radially outward direction, and the first set of pockets and the second set of pockets are radially offset.

[0015] In some other embodiments, the first component and the second component rotate relative to each other about a rotation axis. An inner deflection ring is disposed between the first component and the second component. An outer deflection ring includes a second set of pockets projecting radially relative to the rotation axis. The outer deflection ring is disposed between the inner deflection ring and the second component. The first set of pockets and the second set of pockets are compressible between the first component and the second component.

[0016] In an additional embodiment, the inner deflection ring includes a first set of pockets that project radially relative to the axis of rotation, wherein the first set of pockets includes a first number of pockets, and the second set of pockets includes a second number of pockets, wherein the first number of pockets is equal to the second number of pockets.

[0017] In an additional embodiment, a reaction ring is disposed between the inner deflection ring and the outer deflection ring, wherein the reaction ring is substantially incompressible.

[0018] In an additional embodiment, the reaction ring includes a pair of limiters shaped as radially extending protrusions configured to limit compression of the inner deflection ring and the outer deflection ring.

[0019] In an additional embodiment, the reaction ring is positioned radially outward relative to the outer deflection ring and abuts against the second component.

[0020] In an additional embodiment, the reaction ring is disposed between the inner deflection ring and the outer deflection ring.

[0021] In an additional embodiment, the outer deflection ring is positioned radially outward relative to the inner deflection ring, the reaction ring is positioned radially between the inner and outer deflection rings, and the reaction ring comprises a series of discrete enlarged masses.

[0022] In an additional embodiment, the outer deflection ring is positioned radially outward relative to the inner deflection ring, the first reaction ring is positioned radially between the inner deflection ring and the outer deflection ring, and the second reaction ring is positioned radially outward relative to the outer deflection ring.

[0023] In an additional embodiment, the inner deflection ring does not include a pocket and includes a mass sufficient to reduce vibration transmission between the first and second components.

[0024] In some additional embodiments, the dual deflection ring system for a vehicle includes a transmission. The transmission includes a shaft, a housing, and a bearing supporting the shaft on the housing. The shaft is configured to rotate about a rotation axis relative to the housing. An inner deflection ring includes a first set of pockets projecting radially relative to the rotation axis, the inner deflection ring being disposed radially between the bearing and the housing. An outer deflection ring includes a second set of pockets projecting radially relative to the rotation axis, the outer deflection ring being disposed radially between the inner deflection ring and the housing. The first set of pockets and the second set of pockets are compressible between the first component and the second component. Attached Figure Description

[0025] Exemplary embodiments will be described below in conjunction with the following figures, wherein the same numerals denote the same elements, and wherein:

[0026] Figure 1 These are schematic diagrams of a vehicle having a propulsion system including a transmission, according to various embodiments;

[0027] Figure 2 According to various embodiments Figure 1 A schematic partial cross-sectional view of the transmission;

[0028] Figure 3 According to various embodiments Figure 2 A schematic partial cross-sectional view of the selection features of the transmission;

[0029] Figure 4 According to various embodiments Figure 1 A partial perspective view of a portion of the deflection ring of the transmission;

[0030] Figure 5 According to various embodiments Figure 1 A perspective view of the reaction ring of the transmission;

[0031] Figure 6 According to various embodiments Figure 1 A schematic partial cross-sectional view of the dual deflection ring damping system area of ​​the transmission;

[0032] Figure 7 It is a limiter according to various embodiments Figure 1 A schematic partial cross-sectional view of the dual deflection ring damping system of the transmission;

[0033] Figure 8 It is based on various embodiments having a tunable mass block Figure 1 A schematic partial cross-sectional view of the dual deflection ring damping system of the transmission;

[0034] Figure 9It is according to various embodiments having a second reaction ring Figure 1 A schematic partial cross-sectional view of the dual deflection ring damping system of the transmission;

[0035] Figure 10 It is based on various embodiments and has an external reaction ring. Figure 1 A schematic partial cross-sectional view of the dual deflection ring damping system of the transmission;

[0036] Figure 11 This is a schematic partial axial cross-sectional view of a dual deflection ring vibration reduction system according to various embodiments;

[0037] Figure 12 It is a reaction ring with a bidirectional limiter according to various embodiments. Figure 1 A schematic partial cross-sectional view of the dual deflection ring damping system of the transmission;

[0038] Figure 13 According to various embodiments Figure 12 A schematic partial axial cross-section of a dual-deflection ring vibration reduction system;

[0039] Figure 14 It is according to various embodiments having a deflection loop Figure 1 A schematic partial cross-sectional view of the dual yaw ring damping system of the transmission; and

[0040] Figure 15 According to various embodiments Figure 14 Axial cross-sectional view of the double deflection ring vibration reduction system. Detailed Implementation

[0041] The following detailed description is exemplary in nature only and is not intended to limit application and use. Furthermore, it is not intended to be bound by any express or implied theory set forth in the foregoing technical field, background art, summary of the invention, or the following detailed description.

[0042] As disclosed herein, the rotating system includes a dual deflection ring damping system. While damping is mentioned, as used herein, vibration is an abbreviation for NVH (Noise, Vibration, and Harshness), and therefore vibration can represent or be equivalent to NVH. The dual deflection aspect can be achieved by two deflectable rings, or by a single deflectable ring having dual deflection features for vibration isolation. In some embodiments, a reaction ring with optional mass features may be included for a second layer of vibration isolation. In additional embodiments, a deflection limiter may be included to protect the deflectable ring from over-deflection. In a specific embodiment, the dual deflection ring damping system may be disposed between a pair of components (such as a rotating shaft and a non-rotating housing). In a more specific embodiment, the dual deflection ring damping system may be disposed between the housing and the outer ring of a bearing supporting the rotating shaft on the housing.

[0043] A dual-deflection ring vibration damping system in series provides two deflectable rings to achieve lower stiffness and can include features to prevent exceeding the rings' load capacity. Lower stiffness helps reduce NVH (noise, vibration, and harshness) in the system (including through impedance mismatch) and allows for a wider range of tolerances and clearances while (multiple) rings operate within their elastic limits. High-load protection can be achieved by using deflection limiters to ensure operation remains within the elastic limits.

[0044] Reference Figure 1 In some embodiments, the dual deflection ring damping system 36 may be included in the vehicle 16. The vehicle 16 may be any of several different types of land, sea, or air vehicles, and in some embodiments, may be, for example, any configuration of a passenger vehicle. Figure 1 As shown, vehicle 16 includes a body 17, wheels 18, and a propulsion system 19, which may include any combination of an engine and / or an electric motor. Propulsion system 19 may include a transmission 20. In various embodiments, vehicle 16 may be coupled with… Figure 1 The differences are shown. For example, in some embodiments, the number of wheels 18, the drive shaft, and / or the style of the body 17 may differ. Figure 1 In the illustrated embodiment, the propulsion system 19 provides torque to drive the wheels 18 and is configured as a rotational system including a dual yaw ring damping system 36. The dual yaw ring damping system 36 may be located at any of a plurality of locations within the vehicle 16.

[0045] Reference Figure 2An application example is shown as a portion of a transmission 20, which includes a number of components including a shaft 22 supported on a housing 24. The shaft 22 rotates within the housing and drives at least one gear 26, which may be a source of NVH (noise, vibration, and harshness). The transmission 20 includes a bearing 28 that rotatably supports the shaft 22 on the housing 24. In this embodiment, the bearing 28 includes an inner ring 30 that engages with the shaft 22, an outer ring 32 that engages with the housing 24, and a number of balls 34 that engage between the inner ring 30 and the outer ring 32. The NVH transmission path through the transmission 20 is from the source at the gear 26, through the shaft 22, the inner ring 30, the balls 34, the outer ring 32, and the intermediate dual deflection ring damping system 36, to the housing 24. The dual deflection ring damping system 36 and its components surround the outer ring 32 and the shaft 22. The dual deflection ring damping system 36 is configured to interrupt the NVH path to reduce transmission to the housing 24, thus limiting or preventing amplification such as that caused by the housing 24. In other embodiments, the rotating system may be a device other than the transmission 20, and / or the supports disposed between the relatively rotating components may be other types of bearings or bearing surfaces. Including a dual deflection ring damping system 36 between the relatively rotating components adds benefits such as damping and can create impedance mismatch to provide greater resistance to NVH transmission. Impedance as used herein is an indication of the degree to which a component or assembly resists NVH transmission.

[0046] exist Figure 3 In the illustrated embodiment, the dual deflection ring damping system 36 is disposed between the outer ring 32 and the housing 24. The shaft 22 and housing 24 generally include components that allow relative rotation between them, with the dual deflection ring damping system 36 disposed therebetween; for the purposes of this disclosure, these components are used as non-limiting examples. A bearing 28 is disposed between the shaft 22 and the housing 24. Figure 3 As shown, the dual deflection ring damping system 36 includes three rings, each disposed within a gap space 46: an inner deflection ring 40, an outer deflection ring 42, and a reaction ring 44. The gap space 46 is an annular opening within the housing 24. Because the dual deflection ring damping system 36 includes deflection features, the tolerance and applicable clearance between the outer ring 32 and the housing 24 may be wider than in other cases. The inner deflection ring 40 surrounds and is adjacent to or abuts against the outer ring 32, while the outer deflection ring 42 surrounds and is adjacent to or abuts against the housing 24. The reaction ring 44 is disposed between the inner deflection ring 40 and the outer deflection ring 42 (in the radial direction).

[0047] In this embodiment, the inner deflection ring 40 includes twenty-nine radially inwardly projecting pockets 50, and the outer deflection ring 42 includes twenty-nine radially inwardly projecting pockets 52. Radially inwardly means that the pockets 50 and 52 are formed as cup-shaped recesses extending radially inward toward the center 54 and toward the outer ring 32. Although twenty-nine pockets 50, 52 are shown, the number may vary depending on the application; however, in this embodiment, both the inner deflection ring 40 and the outer deflection ring 42 include the same number. The pockets 50 and 52 are radially aligned, meaning that each pocket 50 and pocket 52, as shown, are centered on a common radial line (such as a reference radial line 56 extending from the center 54), but the position may change during operation. The reference radial line 56 extends radially. See also... Figure 4 A perspective view of a portion of the outer deflection ring 42 is shown, comprising a circular strip-shaped body 58 in which pockets 52 are formed. The pockets 50 and 52 are formed features that can take various customized shapes to exhibit desired compressibility under the load of the application using the pockets 50 and 52. Apart from the formed pockets 52, the outer deflection ring 42 is a substantially circular, thin strip structure.

[0048] exist Figure 3 The diagram also shows that the inner deflection ring 40 is not a closed loop, but has ends 60 and 62, with a gap 64 between ends 60 and 62. Similarly, the outer deflection ring 42 includes ends 66 and 68, with a gap 70 formed between ends 66 and 68. The reaction ring 44 is also not formed as a complete ring, but is separated by ends 72 and 74 forming the gap 76. Although the gaps 64, 70, and 76 are in... Figure 3 The center is shown as radially aligned, but it is understood that this is not necessarily the case when assembling the transmission 20, and that these gaps can move independently around the center 54 during operation of the transmission 20.

[0049] Reference Figure 5 A perspective view of the reaction ring 44 is shown. The reaction ring 44 is circular and has a gap 76 formed by the ends 72, 74. The gap 76 forms an angle 78 with respect to the rotation center line 80, such that the gap 76 is inclined on the reaction ring 44 to avoid step alignment with the gaps 64, 70. When standing upright alone before being assembled into the transmission 20, the gap 76 can be closed with the ends 72, 74 in contact with each other. Accordingly, the reaction ring 44 includes holes 82, 84 for inserting a tool for expansion during assembly.

[0050] Reference Figure 6During assembly, the outer deflection ring 42 is placed in the clearance space 46, which includes an annular groove formed radially outward in the housing 24 between the shoulders 86, 88. During insertion, the outer deflection ring 42 can be compressed to close the clearance 70. Then, the reaction ring 44 is similarly inserted, followed by the inner deflection ring 40. The bearing 28, having an outer ring 32, is then inserted axially into the annular groove 90, such that the outer ring 32 is arranged radially inward from the two shoulders 86, 88. The open ring 92 is then inserted into the groove 94 to hold the bearing 28 in place, which also holds the double deflection ring damping system 36 in place. The shaft 22 can then be inserted through the bearing 28 during subsequent assembly.

[0051] In operation, the NVH experienced by bearing 28 is transmitted to the dual deflection ring damping system 36. Pockets 50 and 52 allow deflection of the inner deflection ring 40 and the outer deflection ring 42 to attenuate NVH. A reaction ring 44 provides a rigid structure for the inner deflection ring 40 and the outer deflection ring 42 to generate a reaction. Furthermore, the reaction ring may include added mass to provide a second layer of attenuation. As a result, the dual deflection ring damping system 36 modifies the NVH transmission path between bearing 28 and housing 24. Transmission can be reduced through damping and impedance modification mechanisms. Impedance modification refers to the dual deflection ring damping system 36 being able to create an impedance mismatch between bearing 28 and housing 24. The tandem dual deflection feature achieves lower stiffness without reducing the ring load capacity. Lower stiffness helps reduce NVH in the system and provides a certain level of control over the housing shoulder clearance while the rings operate within their elastic range. The elastic deformation of the inner deflection ring 40 and the outer deflection ring 42 is achieved by a distance 96 between the bearing 28 and the shoulders 86, 88, which allows the outer ring 32 to move radially until contact is made. Once the outer ring 32 contacts the shoulders 86, 88, further deformation of the inner deflection ring 40 and the outer deflection ring 42 is prevented, thus providing an overcompression protection mechanism to ensure that the inner deflection ring 40 and the outer deflection ring 42 remain in their elastic state.

[0052] Reference Figure 7Additional deformation limiting features are shown. The reaction ring 44 includes limiters 100 and 102. Limiters 100 and 102 limit the deflection of the inner deflection ring 40 and the outer deflection ring 42. Limiters 100 and 102 can be used on the basis of shoulders 86 and 88, or as alternatives thereto. Deformation is accomplished by the compliance of pockets 50 and 52. Further deformation is prevented when limiters 100 and 102 are pressed between the body 58 of the outer deflection ring 42 and the body 104 of the inner deflection ring 40. In this embodiment, the reaction ring 44 includes two limiters 100 and 102 disposed at opposite axial ends of the reaction ring 44. Limiters 100 and 102 are formed as annular expansions at the axial ends of the reaction ring 44. Limiter 100 is radially disposed between the annular edge 106 of the outer deflection ring 42 and the annular edge 108 of the inner deflection ring 40. The limiter 102 is radially disposed between the annular edge 110 of the outer deflection ring 42 and the annular edge 112 of the inner deflection ring 40.

[0053] Reference Figure 8 The formation of the inner deflection ring 40 and Figure 3 Similarly, it has radially inwardly projecting pockets 50. The outer deflection ring 42 is formed with pockets 52, which are formed as radially outwardly projecting features. Pockets 50 and 52 comprise a common total number, and each pocket 50 is radially aligned with pocket 52. As a result, edge 106 approaches edge 108 at reaction ring 44, and edge 110 approaches edge 112 at reaction ring 44. This forms a series of cavities 114 within which reaction ring 44 comprises a series of discrete masses 116, which are enlarged and substantially thicker (in the radial direction) than the body of reaction ring 44 outside the masses 116. As a result, reaction ring 44 has a relatively thin band-like structure in which the masses 116 form mutually spaced capsule-like enlargements around the band-like shape. The size of each mass 116 is adapted to one cavity 114, limiting the offset of pockets 50 and 52 within their elastic range. Mass 116 is shown as a solid structure, but in other embodiments it may be a hollow structure with a certain level of compressibility. Mass 116 may take various shapes and may include mass functions to produce an additional level of NVH attenuation to the dual deflection ring damping system 36, exceeding the attenuation provided by the compressibility of the inner deflection ring 40 and the outer deflection ring 42.

[0054] Mass 116 can be tuned to provide an optimal level of attenuation. For example, the generated vibrations can be analyzed, and the resonant frequency can be identified. Mass 116 can be configured with its own resonant characteristics such that the excitation frequency of the gearbox 20 is higher than the resonant frequency of mass 116. As a result, there is an even higher level of attenuation beyond that provided by the compressibility of the inner deflection ring 40 and the outer deflection ring 42 and the resulting impedance mismatch.

[0055] Reference Figure 9 The configuration of the dual deflection ring vibration reduction system 36 is similar to Figure 8 The configuration is similar, but a portion of the mass of the reaction ring 44 is moved from the mass block 116 to the body 118 of the reaction ring 44 itself, and the strip portion is formed of a thicker material. This configuration provides greater tunability benefits for addressing specific NVH sources. Furthermore, the second reaction ring 120 is radially included outside the outer deflection ring 42. The second reaction ring 120 provides additional benefits such as reduced wear on the outer deflection ring 42 and improved functionality.

[0056] like Figure 10 As shown, the reaction ring 44 can be disposed outside the deflection rings 40 and 42, and is arranged radially outward from the outer deflection ring 42. The pockets 50 and 52 are as follows... Figure 8 The edges 106 and 108 protrude in the opposite radial direction, as in the example. Edges 106 and 108 contact each other, as in the example of edges 110 and 112. As in other embodiments, pockets 50 and 52 are deflectable and arranged in series; in this embodiment, the edge regions support each other. The reaction ring 44 is arranged radially outward from the outer deflection ring 42 and can reduce wear on the outer deflection ring 42 by providing a smaller corrosive contact area, such as due to its ability to rotate at least slightly within the gap space 46. The reaction ring 44 includes restraints 100 and 102, which in this embodiment are formed as radially inwardly projecting annular enlargements at the axial ends of the reaction ring 44 to contact the outer deflection ring 42 at its edges 106 and 110 to limit deformation. Figure 11 This is an axial cross-sectional view of the embodiment, showing the inner deflection ring 40, the reaction ring 44, and the outer deflection ring 42. The pocket 50 of the inner deflection ring 40 protrudes radially inward, while the pocket 52 of the outer deflection ring 42 protrudes radially outward. The reaction ring 44 is formed of a relatively thin material and does not provide a significant increase in mass. Therefore, HVH attenuation is primarily provided by the inner deflection ring 40 and the outer deflection ring 42. Making the pockets 50, 52 protrude in opposite radial directions maximizes the available radial deformation; therefore, in many applications, the mass attenuation of a second layer may not be necessary.

[0057] Figure 12The cross-section of the embodiment includes an inner deflection ring 40, an outer deflection ring 42, and a reaction ring 44 disposed between the inner deflection ring 40 and the outer deflection ring 42. The pocket 50 of the inner deflection ring 40 protrudes radially outward, while the pocket 52 of the outer deflection ring 42 protrudes radially inward. As a result, edges 106 and 108 are separated from each other, and edges 110 and 112 are also separated from each other. The reaction ring 44 includes restraints 100 and 102 at its axial ends. The restraints 100 and 102 are annular and protrude radially inward and radially outward from the body 118 of the reaction ring 44. Providing the radially inward and outward protruding restraints 100 and 102 allows the pockets 50 and 52 to be formed deeper, such as... Figure 13 As shown in the figure, the number of pockets 50 matches the number of pockets 52, and each pocket 50 is radially aligned with a pocket 52. Forming deeper pockets 50, 52 can provide greater deflection and increased attenuation.

[0058] Reference Figure 14 and Figure 15 In this embodiment, the reaction ring 44 may be omitted, and a single deflection ring 122 may be included. For example... Figure 14 As shown, a radially outward-protruding pocket 52 is shown in the background of the cross-section, and a radially inward-protruding pocket 50 is shown on the line of the cross-section. Figure 15 It has been confirmed that the radially outward-projecting pockets 52 are staggered around the deflection ring 122 with the radially inward-projecting pockets 50, and the pockets 50, 52 are radially offset from each other. This radial offset means that no pocket 50 is on the same radial line as a pocket 52. Including both radially outward-projecting pockets 52 and radially inward-projecting pockets 50 on a single deflection ring 122 provides a simplified form of the dual deflection ring damping system 36. The alternation of the inward and outward pockets 50, 52 eliminates the need for a reaction ring and is useful in lightly loaded applications where lower stiffness is preferred or where deflection limitation can be provided by the shoulders 86, 88.

[0059] In embodiments, the inner deflection ring 40 and the outer deflection ring 42 may be made of a material that is easily formed into an annular shape with shaped pockets (such as stamped steel), or may be made of other materials having a spring stiffness suitable for applications where pockets 50, 52 are elastically compressible. The reaction ring 44 may be made of a relatively dense material (such as steel), or may be made of an elastic material such as an elastomer, polymer, or composite material. In embodiments, the reaction ring 44 may be made of a substantially incompressible material (such as steel, other metals, or other rigid materials). Substantially incompressible means that the reaction ring 44 is made of a rigid base material structure such as steel and does not include features (such as pockets) to increase the compressibility of the base material structure. When limiters 100, 102 are included, the limiters 100, 102 may be made of incompressible materials (such as steel or other metals).

[0060] Therefore, the rotating system includes a dual-deflection ring damping system. The dual deflection aspect can be achieved through two deflectable rings, or through a single deflectable ring with dual deflection features for NVH isolation. In some embodiments, a reaction ring with optional mass may be included for a second layer of NVH isolation. Deflection limiters may be included to protect the deflectable ring from over-deflection.

[0061] Although at least one exemplary embodiment has been presented in the foregoing detailed description, it should be understood that numerous variations exist. It should also be understood that the exemplary embodiments or multiple exemplary embodiments are merely examples and are not intended to limit the scope, applicability, or configuration of this disclosure in any way. Rather, the foregoing detailed description will provide those skilled in the art with a convenient roadmap for implementing the exemplary embodiments or multiple exemplary embodiments. It should be understood that various changes may be made to the function and arrangement of the elements without departing from the scope of this disclosure as set forth in the appended claims and their legal equivalents.

Claims

1. A dual-deflection-loop system, comprising: First component; The second component, wherein the first component and the second component rotate relative to each other about a rotation axis; At least one deflection ring disposed between the first component and the second component, the at least one deflection ring including two sets of pockets, the two sets of pockets including a first set of pockets and a second set of pockets, the two sets of pockets being configured to provide two levels of compressibility in series between the first component and the second component; and A reaction ring, wherein the reaction ring is incompressible. The two sets of pockets protrude radially relative to the axis of rotation and are compressible between the first component and the second component.

2. The dual deflection loop system according to claim 1, wherein, The at least one deflection ring includes an inner deflection ring and an outer deflection ring, wherein the outer deflection ring is positioned radially outward relative to the inner deflection ring, wherein the first set of pockets is defined by the outer deflection ring, and the second set of pockets is defined by the inner deflection ring.

3. The dual deflection loop system according to claim 2, wherein, The reaction ring is disposed between the inner deflection ring and the outer deflection ring.

4. The dual deflection loop system according to claim 2, wherein, The reaction ring includes at least one limiter formed as a radial protrusion on the reaction ring, the radial protrusion being configured to limit compression of the inner deflection ring and the outer deflection ring.

5. The dual deflection loop system according to claim 4, wherein, The reaction ring is positioned radially outward relative to the outer deflection ring.

6. The dual deflection loop system according to claim 4, wherein, The reaction ring is disposed between the inner deflection ring and the outer deflection ring.

7. The dual deflection loop system according to claim 1, wherein, The first component includes a shaft, and the second component includes a housing, and the dual deflection ring system includes a bearing disposed between the shaft and the housing, wherein the at least one deflection ring is disposed between the bearing and the housing.

8. A dual-deflection-loop system, comprising: First component; The second component, wherein the first component and the second component rotate relative to each other about a rotation axis; At least one deflection ring disposed between the first component and the second component, the at least one deflection ring including two sets of pockets, the two sets of pockets including a first set of pockets and a second set of pockets, the two sets of pockets being configured to provide two levels of compressibility in series between the first component and the second component; and The reaction ring, wherein: The at least one deflection ring includes an inner deflection ring and an outer deflection ring. The outer deflection ring is positioned radially outward relative to the inner deflection ring. The first set of pockets is defined by the outer deflection ring, and the second set of pockets is defined by the inner deflection ring. The reaction ring is positioned radially between the inner deflection ring and the outer deflection ring, and The reaction ring comprises a series of discrete, enlarged masses.

9. A dual-deflection-loop system, comprising: First component; The second component, wherein the first component and the second component rotate relative to each other about a rotation axis; At least one deflection ring disposed between the first component and the second component, the at least one deflection ring including two sets of pockets, the two sets of pockets including a first set of pockets and a second set of pockets, the two sets of pockets being configured to provide two levels of compressibility in series between the first component and the second component; and First reaction ring and second reaction ring, wherein: The at least one deflection ring includes an inner deflection ring and an outer deflection ring. The outer deflection ring is positioned radially outward relative to the inner deflection ring. The first set of pockets is defined by the outer deflection ring, and the second set of pockets is defined by the inner deflection ring. The first reaction ring is positioned radially between the inner deflection ring and the outer deflection ring, and The second reaction ring is positioned radially outward relative to the outer deflection ring.

10. A dual-deflection-loop system, comprising: First component; The second component, wherein the first component and the second component rotate relative to each other about a rotation axis; and At least one deflection ring is disposed between the first component and the second component, the at least one deflection ring including two sets of pockets, the two sets of pockets including a first set of pockets and a second set of pockets, the two sets of pockets being configured to provide two levels of compressibility in series between the first component and the second component, wherein: The at least one deflection ring includes only one deflection ring, wherein the one deflection ring includes both the first set of pockets and the second set of pockets. The first set of pockets protrudes in the radially inward direction. The second set of pockets protrudes radially outward, and The first set of pockets is radially offset from the second set of pockets.

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