• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SPHERE FLANGE JOINT. According to one embodiment, a flange joint (10) for joining a first tube (12) to a second tube (14) includes an adapter (20) coupled to the first tube. The adapter includes a convex surface (24). The flange joint also includes a gasket (30) with a first concave surface (34) and a second convex surface (36). The first concave surface of the gasket is engaged in a manner compatible with the convex surface of the adapter. The second convex surface is engaged in a manner compatible with the second tube. The gasket [and supported on the first tube. The flange gasket also includes a clamp (40) which includes a concave surface (80) which is engaged in a manner compatible with the second tube to secure the gasket to the adapter.
    公开号:BR112012007072B1
    申请号:R112012007072-0
    申请日:2010-09-29
    公开日:2020-12-01
    发明作者:Jason Drost；Robert Schellin
    申请人:Cummins Ip, Inc；
    IPC主号:
    专利说明:

    REFERENCE REFERENCE TO RELATED ORDER
    The present application claims the benefit of provisional US patent application no. 61 / 246,842, filed on September 29, 2009, which is incorporated herein by way of reference. Field
    The present disclosure relates to flange joints to join two components together, and more particularly to spherical flange joints to join two components together while accommodating angular misalignment between the two components. Background
    Flange joints are widely used to couple two components together. Generally, each component includes a fixed or integral flange. The component flanges are joined and clamped together to form a joint using various techniques. A conventional technique includes securing the flanges together using a fixture. Often, a sealing element, such as a gasket, is positioned between the flanges to prevent material from passing between the flanges. In certain automotive applications, flange-type gaskets couple opposing tubes together to contain a material flow, such as air, discharge, etc., therefore, a gasket is used to seal the flange-type gasket to prevent leakage of the flowing material. through the tubes.
    Many conventional flange joints fail to accommodate angular misalignment between coupled components. Typically, typical flange joints are designed to couple only coaxially aligned or parallel components together. However, in certain automotive applications, coupling to tubes intentionally or unintentionally misaligned (ie, not coaxial or parallel) may be desirable. For example, discharge tubes may be intentionally misaligned to avoid or make room for other components in the system dump or other automotive system. Alternatively, discharge tubes may be unintentionally misaligned due to manual error when coupling the tubes together. Most conventional flange-type joints would not work properly to properly attach components intentionally or unintentionally misaligned.
    Some conventional joints have been designed to accommodate angular misalignment between coupled components. Although such joints can provide at least some partial coupling of misaligned components, these joints generally fail to provide an adequate seal between the components to prevent material from leaking through the joint. In addition, certain of these conventional joints can accommodate only less than desirable misalignment.
    Certain typical flange-type joints for coupling components together are often susceptible to undesirable back pressure increases in the components, which can clog the system and result in undesirable consequences. Such increases in counter-pressure can be caused when one component has a significantly reduced internal dimension (for example, diameter) compared to the internal dimension of the other component.
    In addition, many typical flange-type gaskets that employ a gasket are difficult to assemble and fail to ensure adequate sealing. For example, gaskets on typical joints are manually held in place during joint assembly, especially in vertically oriented applications. In addition, gaskets, which must be centered in relation to the components, are prone to displacement out of the center with the components during and after installation. In addition, most gaskets used in conventional flange-type gaskets fail to accommodate variances in component size, which can lead to improper packing seating and leakage. summary
    The subject of the present application was developed in response to the present state of the art, and in particular, in response to problems and needs in the technique that have not yet been fully resolved by currently available flange joints. Accordingly, the subject of the present application has been developed to provide a spherical flange joint, and associated apparatus and systems, which overcome at least some disadvantages of the prior art flange type joints.
    According to one embodiment, a flange joint for joining a first tube to a second tube includes an adapter coupled to the first tube. The adapter includes a convex surface. The flange joint also includes a gasket with a first concave surface and a second convex surface. The first concave surface of the gasket is interlockable in a way that matches the convex surface of the adapter. The second convex surface is interlockable in a way that matches the second tube. The gasket is supported on the first tube. The flange joint also includes a clamp that includes a concave surface that can be joined in conjunction with the second tube to fix the gasket to the adapter.
    In some implementations, the convex surface of the flange joint adapter includes a first radius of curvature, the first concave surface of the gasket includes a second radius of curvature, the second convex surface of the gasket includes a third radius of curvature, and the concave surface of the clamp includes a fourth radius of curvature. The first radius of curvature can be equal to the second radius of curvature, the first and second radii of curvature can be individually smaller than the third radius of curvature, and the third radius of curvature can be less than the fourth radius of curvature.
    According to certain implementations, the convex surface of the flange joint adapter is a first convex surface and the adapter further includes a second convex surface. In addition, the concave surface of the clamp can be a first concave surface with the clamp including a second concave surface. The second concave surface of the clamp can be engaged in a manner compatible with the second convex surface of the adapter. A radius of curvature for the first convex surface of the adapter may be less than a radius of curvature for the second convex surface of the adapter in some implementations. In specific implementations, a radius of curvature of the first concave surface of the clamp can be equal to a radius of curvature of the second concave surface of the clamp.
    The flange joint clamp can be symmetrical in cross section in certain implementations. The gasket may include a ridge that is formed on at least one of the first concave and second convex surfaces of the gasket. According to some implementations, the adapter includes a hollow interior. The adapter can also have a cross section generally in V shape.
    In some implementations, the flange gasket has a substantially annular shape that defines a central opening. The gasket may further include a plurality of tabs extending at least partially into the opening. The adapter, gasket and clamp can be configured to join the first and second tubes when the first and second tubes are angularly misaligned to a predetermined angle. The predetermined angle can be approximately 2 degrees in certain implementations.
    In another embodiment, a tube assembly includes a first tube that includes a first end portion, and a second tube that includes an extended end portion that has a curved wall with a specific curvature. The tube assembly also includes an adapter attached to the first pipe. The adapter can include a curved surface with a curvature that corresponds to the specific curvature. In addition, the tube assembly includes a gasket positioned between the curved wall of the extended end portion and the curved surface of the adapter. The gasket has a curvature that corresponds to the specific curvature and the gasket is supported on the first tube. The tube assembly can also include a clamp that includes a curved surface with a curvature that corresponds to the specific curvature. The clamp can be tightened to secure the curved wall of the extended end portion against the gasket and the gasket against the curved surface of the adapter.
    The tube assembly gasket may have a substantially annular shape that defines a central opening slightly larger than an outer periphery of the first tube. The gasket may include at least one set of opposing tabs extending at least partially into the opening where a maximum distance between the opposing tabs is less than a diameter of the first tube. The gasket can form a seal between the adapter and the extended end of the second tube where the seal is kept
    when the second tube is misaligned in relation to the second tube. The gasket can extend radially outwardly from the first tube to approximately a periphery of the radially outermost adapter.
    In certain implementations, the tube assembly further includes an annular reinforcement ring positioned between the extended end portion of the second tube and clamp. The tube assembly may include an annular reinforcement ring coupled to an external surface of the clamp. According to some implementations, the adapter can be formed in a wall of the first tube.
    According to yet another embodiment, a spherical joint assembly includes a first end portion of a first tube where the first end portion has an unstretched end. The spherical joint assembly also includes a second end portion of a second tube. The extreme portion includes an enlarged end that has an inner surface with a first radius of curvature and an outer surface with a second radius of curvature. The second extreme portion further includes a step adjacent to the enlarged end. In addition, the ball joint assembly includes an adapter that is attached to the first end portion. The adapter includes a first curved surface with a third radius of curvature and a second curved surface with a fourth radius of curvature different from the third radius of curvature. The ball joint assembly also includes a gasket positioned between the widened end of the second end portion and the first curved surface of the adapter. The gasket is supported by the first extreme portion of the first tube and has an inner surface with the third radius of curvature and an outer surface with the first radius of curvature. The inner surface of the gasket matches the first curved surface of the adapter and the outer surface of the gasket matches the inner surface of the extended end portion. The gasket may further include a raised ridge which seals the enlarged end of the second end portion sealingly. Additionally, the spherical joint assembly includes a clamp that has a symmetrical V band with first and second curved surfaces. The first curved surface of the V band has the second radius of curvature and the second curved surface of the V band has the fourth radius of curvature. The first curved surface of the V-band matches the outer surface of the extended portion and the second curved surface of the V-band matches the second curved surface of the adapter.
    Reference throughout this specification to characteristics, advantages or similar language does not indicate that all characteristics and advantages that can be realized with the theme of the present disclosure must be or are in any single modality. Instead, the language referring to the characteristics and advantages is understood to mean that a specific characteristic, advantage or aspect described in relation to a modality is included in at least one modality of the present disclosure. Thus,
    discussion of aspects and advantages, and similar language, throughout this descriptive report may, but not necessarily, refer to the same modality.
    In addition, the aspects, advantages and features described in the subject of the present disclosure can be combined in any appropriate way in one or more modalities. A person skilled in the relevant technique will recognize that the topic can be put into practice without one or more of the specific characteristics or advantages of a specific modality. In other cases, additional features and advantages may be recognized in certain modalities that may not be present in all modalities. These characteristics and advantages will become more completely evident from the following description, or can be learned by practicing the theme as explained below. Brief description of the drawings
    In order that the advantages of the theme can be more fully understood, a more specific description of the subject briefly described above will be made by reference to specific modalities that are illustrated in the attached drawings. The understanding that these drawings represent only typical modalities of the material and should not, therefore, be considered as limiting its scope, the material will be described and explained with additional specificity and detail through the use of the drawings, in which:
    Figure 1 is a cross-sectional side view of a tube assembly with a spherical flange joint according to an embodiment;
    Figure 2 is a cross-sectional side view of the spherical flange joint in Figure 1;
    Figure 3 is a cross-sectional side view of an adapter of a spherical flange joint according to an embodiment;
    Figure 4 is a front view of a gasket of a spherical flange joint according to an embodiment;
    Figure 5 is a side view in cross section of a flanged end of a tube according to an embodiment;
    Figure 6 is a cross-sectional side view of a clamp of a spherical flange joint according to an embodiment;
    Figure 7 is a side view in cross section of a tube assembly with a spherical flange joint having an adapter integrated in a tube of the assembly according to an embodiment; and
    Figure 8 is a cross-sectional side view of a tube assembly with a spherical flange joint having reinforcement elements according to an embodiment. Detailed Description
    Reference throughout this specification to “a modality”. Or similar language means that a specific aspect, structure or characteristic described in relation to the modality is included in at least one modality of the present disclosure. Appearances of the phrase “in a modality” and similar language throughout this specification may, however, not necessarily refer to the same modality. Similarly, the use of the term "implementation" means an implementation having a specific aspect, structure or characteristic described with respect to one or more modalities of the present disclosure, however, in the absence of an express correlation to indicate otherwise, an implementation may be associated with one or more modalities.
    In addition, the aspects, structures or characteristics described in the subject described herein can be combined in any appropriate way in one or more embodiments. In the following description, numerous specific details are provided, such as examples of controls, structures, devices, algorithms, programming, software modules, user selections, hardware modules, hardware circuits, hardware chips, etc., to provide a complete understanding of subject modalities. A person skilled in the relevant technique will recognize, however, that the matter can be put into practice without one or more of the specific details, or with other methods, components, materials, and so on. In other cases, well-known structures, materials or operations are not shown or described in detail to avoid obscuring aspects of the revealed matter.
    Figure 1 represents an embodiment of a spherical flange joint 10 coupling a first tube 12 to a second tube 14. The spherical flange joint 10 is configured to retain an enlarged end portion 18 of the second tube 14 in relation to the first tube 12 and provide a sealed coupling between the first and second tubes. More specifically, the spherical flange joint 10 facilitates a sealed engagement between the first and second tube 12, 14 even with the second tube 14 oriented at an angle p with respect to the first tube. The angle p is defined as the angle between a central axis 50 of the first tube 12 and a central axis 52 of the second tube 14. The angle p can be any of several angles. In a specific implementation, the angle p is between zero degrees and approximately two degrees. However, in some implementations, the angle p is greater than approximately two degrees.
    The spherical flange gasket 10 includes an adapter 20, a gasket 30, and a clamp 40. The adapter 20 is attached to an extreme portion 16 of the first tube 12 around a periphery of the first tube. In some implementations, adapter 20 is attached to end portion 16 by welding the adapter to end portion. According to certain implementations, the adapter 20 is attached to the extreme portion 16 using other attachment techniques, such as adhesion, connection or attachment. The gasket 30 is supported on an outer surface of the end portion 16 of the first tube 12 and positioned between the adapter 20 and the extended end portion 18. The clamp 40 is positioned around the extended end portion 18, adapter 20 and gasket 30 in such a way. so that at least a portion of the extended end portion, adapter and clamp is positioned between the clamp. The clamp 40 includes a clamping mechanism 48 operable to clamp the clamp against the extended end portion 18 and adapter 20. The clamping of the clamping mechanism 48 against the extended end portion 18 and adapter 20 causes the extended end portion and adapter tighten against packing 30 in this way to form a seal. Generally, the extended end portion 18, adapter 20, gasket 30 and clamp 40 include matched curved surfaces that allow the extended end portion 18, adapter 20 and gasket 30 to be tightened together to form a seal even if the second tube 14 is misaligned with the first tube 12.
    With reference to figure 2, the adapter 20 is attached to the extreme portion 16 of the first tube 12 just upstream from a downstream end 60 of the first tube. The section of the first tube 12 between the adapter 20 and the downstream end 60 defines a shoulder 62. The adapter 20 has a substantially angular shape and is generally V-shaped in cross section (see, for example, figure 3). In other words, in certain implementations, the adapter 20 can be described as having a substantially triangular cross-section, but with a hollow interior 23 (for example, having a similar cross-sectional shape as a cone). The hollow interior of adapter 20 results in weight savings and thus a reduction in induced stresses in joint 10 and tubes 12, 14. In some embodiments, adapter 20 does not have a hollow interior.
    The adapter 20 includes two external contact surfaces (for example, external) inclined with respect to the central geometrical axis 50 of the first tube 12. As shown in figures 2 and 3, the external contact surfaces include an upstream surface 22 and a surface downstream 24. Preferably, the upstream and downstream surfaces 22, 24 respectively form the same included angle with respect to the central geometric axis 50.Each of the upstream and downstream surfaces 22, 24 are convex (for example, rounded or curved upstream and downstream surfaces 22, 24 define respective curves having any of several radii. In some implementations, the radii of each curve can be between approximately 90 mm and approximately 110 mm. Preferably, the respective curves defined by the upstream and downstream surfaces 22, 24 have different radii to facilitate the use of a symmetrical clamp 40 as will be explained in more detail below. In specific implementations, the upstream surface 22 has a radius that is greater than the radius of the downstream surface 24 approximately by combined thicknesses of the gasket 30 and the enlarged end portion 18 of the second tube 14.
    As discussed above, the adapter 20 can be attached to the outer surface of the end portion 16 using any of several fixation techniques, such as welding, adhesion, fixation and the like. In addition, adapter 20 can be made of any of several rigid materials, such as metal and metal alloys, composites, ceramics, etc. adapter 20 includes at least one fixing surface 21 which is supported by and contacts the extreme portion 16 of the first tube 12. Using welding techniques, the adapter 20 is welded to the extreme portion 16 on or adjacent to the fixing surfaces 21. For therefore, the thickness of the adapter 20 on the fixing surfaces 21 is large enough to support a robust weld between the adapter 20 and the end portion 16, as well as to avoid breaking of the adapter 20 along the fixing surfaces 21. Alternative to be formed separately the adapter 20 and fixing it to the tube 12 is a separate and future process, the adapter can be integrated into the extreme portion of a tube to form a monolithic one-piece structure with the tube. For example, according to an embodiment shown in figure 7, an adapter 100 is integrated into an extreme portion 110 of a tube 120. In certain implementations, such as the illustrated implementation, adapter 100 is formed on the wall of the first tube 120. For therefore, adapter 100 can be the same thickness as the wall of the first tube 120. adapter 100 can include the same curved surfaces as adapter 20 and be used with the same gasket, extended end portion and clamp as adapter 20 to form a spherical flange joint. In certain cases, the integrated adapter 100 can reduce the manufacturing costs associated with a joint compared to the adapter 20.
    The gasket 30 is positioned between the downstream surface 24 of the adapter 20 and the extended end portion 18 of the second tube 14. The gasket 30 has a substantially annular shape (see figure 4) with a central opening 32 through which the end portion 16 of the first tube 12 extends. The gasket 30 includes upstream and downstream surfaces 34, 36, respectively (see, for example, figure 2). The upstream surface 34 is concave (for example, rounded or curved inward) and the downstream surface 36 is convex. Each of the upstream and downstream surfaces 34, 36 of the gasket 30 defines a respective curve having a radius corresponding to the radius of the surface downstream 24 of the adapter 20. In other words, the radius of the upstream surface 34 of the gasket 30 is approximately equal to the downstream surface 24 of the adapter 20 and the radius of the downstream surface 36 of the gasket is approximately equal to the radius of the surface upstream of the gasket plus the thickness of the gasket.
    When assembled, as shown in Figure 2, the gasket 30 forms the same included angle with respect to the central geometric axis 50 as the downstream surface 24 of the adapter 20. Thus, the concave upstream surface 34 of the gasket 30 engages in a compatible manner or snugly receives the convex downstream surface 24 of adapter 20. In other words, the concave upstream surface 34 rests substantially level against the convex downstream surface 24.
    Referring again to Figure 4, the gasket 30 includes a plurality of tongues 38 formed around a periphery of the opening 32. The tongues 38 are configured to properly position, center and at least partially secure the gasket 30 on the
    end portion 16 of first tube 12. In certain implementations, opening 32 has a diameter that is slightly larger than an outside diameter of end portion 16 to reduce or eliminate interference between the opening and the end portion, which can be caused by variance of manufacture resulting from the manufacture of the first tube 12 and / or gasket 30. The tabs 38 extend into the opening 32 such that the distance between opposing tabs is less than the outside diameter of the extreme portion 16.
    Therefore, when placed around the end portion 16, the tabs 38 are interfered with by the end portion 16 (for example, they deform, flex or deflect when positioned around the end portion). The interference forces between the tabs 38 and the extreme portion 16 act to ensure retention, positioning and proper centering of the gasket 30 in relation to the extreme portion even with manufacturing variance in the first tube 12 and / or gasket (see figure two). The gasket 30 rests against and is supported by the extreme portion 16 of the first tube 12, more specifically the shoulder 62 of the first tube, such that the gasket remains in place during assembly of the joint 10, for horizontal, vertical or other installations . In this way, a user or installer does not need to manually hold the gasket 30 in place during assembly of the gasket 10. The support and retention of the gasket 30 using the shoulder 62 of the first tube 12 thus provides a safer and more robust assembly than if the gasket was supported and retained only by the adapter 20.
    Additionally, in certain implementations, as the gasket 30 is supported directly by the first tube 12, the gasket substantially covers the entire upstream surface 24 of the adapter 20 from the downstream fixing surface 21 to almost an external periphery of the adapter. In this way, no portion of the upstream surface 24 is exposed to the extended end portion 18. Therefore, the extended end portion 18 is prevented from contacting and potentially damaging the adapter 20 during or after assembly.
    The gasket 30 is configured to provide a seal between the adapter 20 and the extended end portion 18 of the second tube 14. In certain implementations, the gasket 30 is made of a flexible material, such as rubber, foam, silicone, polymers, graphite and the like . In some implementations, the flexible material is deformable, compressible and / or elastic. As the clamp 40 is tightened, the gasket 30 presses and at least partially deforms against the adapter 20 and the extended end portion 18 to create a seal or barrier between the adapter and the extended end portion. In other words, the gasket 30 promotes the elimination of openings between the gasket, adapter 20 and extended extreme portion 18. However, inconsistencies caused during manufacturing can create variances in adapter 20, gasket 30 and / or extended extreme portion 18, which can lead to wider openings between the gasket and the adapter and / or extended end portion. For this purpose, the gasket 30 may, in certain implementations, include a raised annular ridge 39 (e.g., protuberance) formed on the downstream surface 36 of the gasket (see, for example, figures 2 and 4). The annular ridge 39 is configured to ensure that a seal is created between the gasket 30 and the extended end portion 18 in the event that the adapter 20 or extended end portion is non-uniform, or has inconsistencies or manufacturing variances. In other embodiments, the gasket 30 may include a high annular ridge on the upstream surface 34 instead of or in addition to the high annular ridge 39 on the downstream surface 36.
    With reference to figure 5, the extended end portion 18 of the second tube 14 includes enlarged surfaces upstream and downstream 70, 72, respectively and a step 74. The extended surface upstream 70 is concave and the extended surface downstream 72 is convex . The upstream widened surface 70 of the extended end portion 18 defines a curve having a radius corresponding to the radius of the upstream convex surface 36 of the gasket 30. In other words, the radius of the upstream extended surface 70 of the extended end portion 18 is approximately equal at the downstream surface 36 of the gasket 30 and the radius of the extended surface downstream 72 of the extended extreme portion is approximately equal to the radius of the surface upstream of the extended extreme portion plus the thickness of the extended extreme portion.
    When assembled, the upstream enlarged surface 70 of the extended end portion 18 engages in a compatible manner or neatly receives the convex downstream surface 36 of the gasket 30. Consequently, the upstream concave upstream surface 70 rests substantially level against the downstream surface. convex 36. In the event that the upstream enlarged surface 70 does not sit flush against the convex downstream surface 36 of the gasket 30 due to manufacturing abnormalities, or otherwise, the annular ridge 39 of the gasket is configured to ensure that a seal is created between the gasket 30 the enlarged extreme portion 18.
    Step 74 of the extended end portion 18 facilitates the coupling and misalignment of the second tube 14 to the first tube 12 where the outer diameter of the second tube is equal to or similar to the outer diameter of the first tube. In other words, even if the outer diameters of the first and second tubes 12, 14 are the same, the second tube can still be axially misaligned with and sealed to the first tube due to step 74. Generally, the inner diameter of a tube is directly proportional to the outer diameter of a tube. In other words, the greater or lesser the outer diameter of a tube, the greater or lesser, respectively, the inner diameter of the tube. Therefore, as the joint 10 facilitates the coupling and misalignment of tubes having similar external diameters, the joint also facilitates the coupling and misalignment of tubes having similar internal diameters, which corresponds to a decrease in pressure drop across the tubes compared to diameters different internal.
    With reference to figure 6, the clamp 40 includes a substantially annular V-band 42 and tension strip 44. The V-band 42 and tension strip 44 cooperatively induce the extended end portion 18 against the gasket 30 and adapter 20, as well as the adapter against the gasket 30. The tension strip 44 can be adjusted using a clamping mechanism 48 (see figure 1) to tighten the V-band 42 against the extended end portion 18, gasket 30 and adapter 20, which finally forms the joint between the first and second tubes 12, 14. The V-band 42 includes two inclined walls 45, 46 each having inner and outer surfaces 80, 82. At least one, and preferably both, inner surfaces 80 are concave and defines a curve having the same radius as the enlarged downstream surface 72, which corresponds to the radii of the downstream surfaces 36, 24 of the gasket 30 and adapter 20, respectively. In this way, any of the concave inner surfaces 80 can engage in a compatible manner or receive the enlarged convex downstream surface 72 of the second tube 14. In other words, a concave inner surface 80 of the clamp 40 can substantially support against the enlarged surface. downstream convex 72.
    The other of the inner surfaces 80 (i.e., the inner surface not engaged in a manner compatible with the enlarged downstream surface 72) is configured to engage in a compatible manner or to receive the upstream surface 22 of adapter 20 in place. As discussed above, the the upstream surface 22 of the adapter 20 has a slightly larger radius than the downstream surface 24. More specifically, in some embodiments, the radius of the upstream surface 22 is approximately equal to the radius of the enlarged surface downstream 72 of the second tube 14. As the surfaces to which the inner surfaces 80 of the V-band 42 are interchangeable in a compatible manner have the same radius, the inner surfaces 80 can also have the same radius, which allows the clamp 40 to be symmetrical. The provision of a symmetrical clamp 40 can eliminate installation and time errors commonly associated with clamps having designated and differently configured upstream and downstream sides.
    As discussed above, the radii of the curved matched surfaces correspond to each other and can be the same in certain embodiments. In addition, the radii can be different based on the diameters of the first and second tubes 12, 14. For example, for tubes having a first diameter (eg 10.16 cm), the radius of the surface downstream 24 of the adapter 20 can have a first dimension (for example, 90 mm). In contrast, for tubes having a second diameter (for example, 12.7 cm), the radius of the surface downstream 24 of the adapter 20 may have a second dimension (for example, 110 mm) different from the first dimension. In this way, joint 10 allows similar misalignment capacity for tubes of different size.
    Referring to figure 8, a gasket 200 is shown which is similar to the gasket except that adapter 210 does not have a hollow interior and gasket 200 includes annular reinforcement aspects or rings 220, 230. Reinforcement aspect 220 is positioned between a extended end portion 240 of a downstream pipe and a clamp 250. Reinforcement aspect 220 may have a curvature corresponding to the curvature of the extended end portion 240 and clamp 250. More specifically, the reinforcement aspect has an upstream surface with a radius of curvature that is equal to the radius of curvature of a surface downstream of the extreme widened portion of 240, and a downstream surface with a radius of curvature that is equal to the radius of curvature of an upstream surface or internal clamp 250. In certain implementations, the reinforcement aspect 220 is made of a rigid material. The reinforcement aspect 230 can be integrated in the clamp 250 or fixed to an external surface of the clamp. Reinforcement aspects 220, 230 provide stress reduction and additional strength for joint 200.
    Although the above description uses descriptive terms such as "upstream" or "downstream", such descriptions relate to the specific orientation of the joint 10 in the modalities illustrated in relation to a flow of fluid through the tubes. A person of ordinary skill in the art will recognize in view of this disclosure that the descriptive terms can be reversed if the orientation of the joint 10 or the direction of flow is reversed.
    权利要求:
    Claims (20)
    [0001]
    1. A tube assembly comprising: a first tube; and a flange joint comprising: an adapter coupled to the first tube, the adapter and the first tube being formed separately; a gasket; and a clamp; CHARACTERIZED in that the adapter comprises a convex upstream surface having a first radius of curvature and a convex downstream surface having a second radius of curvature different from the first radius of curvature; the gasket comprises a first concave surface and a second convex surface, the first concave surface of the gasket being engaged in a manner compatible with the convex downstream surface of the adapter, and the second convex surface capable of being engaged in a manner compatible with a second pipe, wherein the gasket is capable of being supported on the first tube; and the clamp comprises an inner surface capable of being engaged in a manner compatible with the convex upstream surface of the adapter and with the second tube for fixing the gasket to the convex downstream surface of the adapter, the inner surface being concave.
    [0002]
    2. Tube assembly according to claim 1, CHARACTERIZED in that the first gasket surface comprises a third radius of curvature, the second convex surface of the gasket comprises a fourth radius of curvature, and the inner surface of the clamp comprises a fifth radius of curvature, and the second radius of curvature is equal to the third radius of curvature, the second and third radii of curvature, each being less than the fourth radius of curvature, and the fourth radius of curvature being less than the fifth radius of curvature.
    [0003]
    3.Pipe assembly, according to claim 1, CHARACTERIZED by the fact that the flange joint is for joining the first pipe to the second pipe.
    [0004]
    4.Pipe assembly, according to claim 1, CHARACTERIZED by the fact that the interior surface of the clamp is concave.
    [0005]
    5. Tube assembly according to claim 1, CHARACTERIZED by the fact that the first concave surface of the gasket and the second convex surface of the gasket are opposite.
    [0006]
    6. Tube assembly, according to claim 1, CHARACTERIZED by the fact that the clamp is symmetrical in cross section.
    [0007]
    7. Tube assembly according to claim 1, CHARACTERIZED by the fact that the gasket comprises a groove formed in at least one of the first concave surface and the second convex surface of the gasket.
    [0008]
    8. Tube assembly according to claim 1, CHARACTERIZED by the fact that the adapter comprises a hollow interior.
    [0009]
    9. Tube assembly according to claim 8, CHARACTERIZED by the fact that the adapter has a general V-shaped cross section.
    [0010]
    10. Tube assembly according to claim 1, CHARACTERIZED by the fact that the gasket has an annular shape that defines a central opening, and the gasket comprises a plurality of tabs that extend at least partially into the opening.
    [0011]
    11. Tube assembly according to claim 1, CHARACTERIZED by the fact that the adapter, gasket and clamp are configured to join the first and second tubes when the first and second tubes are angularly misaligned to a predetermined angle.
    [0012]
    12. Tube assembly according to claim 11, CHARACTERIZED by the fact that the predetermined angle is 2 degrees.
    [0013]
    Tube assembly according to claim 1, characterized in that it further comprises the second tube: the first tube comprises a first end portion; the second tube comprises an enlarged end portion having a curved wall with a specific curvature; a convex downstream surface of the adapter has a curvature corresponding to the specific curvature; the gasket is positioned between the curved wall of the enlarged end portion and the convex downstream surface of the adapter, the gasket has a corresponding curvature with the specific curvature, the gasket is supported on the first tube; and the inner surface of the clamp has a curvature corresponding to the specific curvature, the clamp being pinchable to fix the curved wall of the enlarged end portion against the gasket and the gasket against the convex downstream surface of the adapter.
    [0014]
    14. Tube assembly according to claim 13, CHARACTERIZED by the fact that the gasket has an annular shape that defines a central opening slightly larger than an outer periphery of the first tube, and the gasket comprises at least one set of flaps opposite sides that extend at least partially into the opening, a maximum distance between the opposite flaps being less than a diameter of the first tube.
    [0015]
    15. Tube assembly according to claim 13, CHARACTERIZED by the fact that the gasket forms a seal between the adapter and the enlarged end portion of the second tube, and the seal is maintained when the second tube is misaligned with respect to the second pipe.
    [0016]
    16. Tube assembly according to claim 13, CHARACTERIZED in that the gasket extends radially outwardly from the first tube to an outermost radial periphery of the adapter.
    [0017]
    17. Tube assembly according to claim 13, CHARACTERIZED in that it further comprises an annular reinforcement ring positioned between the enlarged end portion of the second tube and the clamp.
    [0018]
    18. Tube assembly according to claim 13, CHARACTERIZED by the fact that it also comprises an annular reinforcement ring coupled to an outer surface of the clamp.
    [0019]
    19. Tube assembly according to claim 13, CHARACTERIZED by the fact that the adapter is formed in a wall of the first tube.
    [0020]
    A tube assembly according to claim 1, CHARACTERIZED by: the first end portion has a non-enlarged end; the enlarged end portion of the second tube having an inner surface with a third radius of curvature and an outer surface with a fourth radius of curvature, the second end portion still comprising a step adjacent the enlarged end; the adapter is coupled to the first end portion, the gasket positioned being supported by the first end portion of the first tube, the first concave surface of the gasket forming an inner surface with the second radius of curvature and the second convex surface of the gasket forming a surface outer with the third radius of curvature, the inner surface coupling with the convex downstream surface of the adapter and the outer surface coupling with the inner surface of the enlarged end portion, the gasket further comprises a raised crest engaging sealable to the enlarged end of the second end portion; the clamp comprises a symmetrical V band, the inner surface of the clamp comprises a first curved surface of the V band and the second curved surface of the V band, the first curved surface having the fourth radius of curvature and the second curved surface having the first radius of curvature, and the first curved surface of the V-band couplings engages with the outer surface of the enlarged end portion and the second curved surface of the V-band couplings engages with the second curved surface of the adapter.
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    同族专利:
    公开号 | 公开日
    EP2483587B1|2018-04-18|
    WO2011041448A2|2011-04-07|
    EP2483587A2|2012-08-08|
    CN104964111B|2017-12-12|
    CN102713395A|2012-10-03|
    US20110074150A1|2011-03-31|
    CN104964111A|2015-10-07|
    US20180149295A1|2018-05-31|
    US9909698B2|2018-03-06|
    BR112012007072A2|2016-04-19|
    CN102713395B|2015-05-27|
    EP2483587A4|2013-10-23|
    WO2011041448A3|2011-10-06|
    US10900596B2|2021-01-26|
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-03-19| B06T| Formal requirements before examination|
    2020-01-14| B07A| Technical examination (opinion): publication of technical examination (opinion)|
    2020-06-09| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2020-09-24| B09A| Decision: intention to grant|
    2020-12-01| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 01/12/2020, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US24684209P| true| 2009-09-29|2009-09-29|
    US61/246.842|2009-09-29|
    PCT/US2010/050771|WO2011041448A2|2009-09-29|2010-09-29|Spherical flange joint|
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