公开(公告)号：US20060214379A1

公开(公告)日：2006-09-28

申请号：US11360831

申请日：2006-02-23

申请人： Brian James ,  John Schroeder ,  Rome Richardson ,  Lannie Dietle

发明人： Brian James ,  John Schroeder ,  Rome Richardson ,  Lannie Dietle

IPC分类号： F16J15/34

CPC分类号： F16J15/3208 ,  F16J15/166 ,  F16J15/3236 ,  F16J15/3244

摘要： A composite, dynamic seal suitable for use in a high temperature environment and method of making same. The dynamic seal includes a resilient, generally ring-shaped seal body having a first layer formed of a first resilient sealing material and a second layer formed of a second resilient sealing material. The first and second layers are preferably molded and cured together simultaneously and chemically cross-linked to each other. The first resilient sealing material is selected for its wear resistant dynamic properties and the second resilient sealing material is selected for its compression set resistant properties. Preferably, the first resilient sealing material is tetrafluoroethylene and propylene copolymer and the second resilient sealing material is fluorocarbon rubber. The first and second resilient sealing materials have compatible cure systems, preferably peroxide cure systems.

摘要翻译： 适用于高温环境的复合动态密封及其制造方法。 动态密封件包括具有由第一弹性密封材料形成的第一层和由第二弹性密封材料形成的第二层的弹性的大致环形的密封体。 第一层和第二层优选同时模塑并固化在一起，并彼此化学交联。 选择第一种弹性密封材料的耐磨动态性能，并且选择第二种弹性密封材料用于其抗压缩变形性能。 优选地，第一弹性密封材料是四氟乙烯和丙烯共聚物，第二弹性密封材料是碳氟橡胶。 第一和第二弹性密封材料具有相容的固化体系，优选过氧化物固化体系。

公开(公告)号：US20060214380A1

公开(公告)日：2006-09-28

申请号：US11386209

申请日：2006-03-22

申请人： Lannie Dietle ,  John Schroeder

发明人： Lannie Dietle ,  John Schroeder

IPC分类号： F16J15/32

CPC分类号： F16J15/324 ,  F16J15/3208 ,  F16J15/3236 ,  F16J15/3244

摘要： A hydrodynamically lubricating geometry for the generally circular dynamic sealing lip of rotary seals that are employed to partition a lubricant from an environment. The dynamic sealing lip is provided for establishing compressed sealing engagement with a relatively rotatable surface, and for wedging a film of lubricating fluid into the interface between the dynamic sealing lip and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or the counter-clockwise direction. A wave form incorporating an elongated dimple provides the gradual convergence, efficient impingement angle, and gradual interfacial contact pressure rise that are conducive to efficient hydrodynamic wedging. Skewed elevated contact pressure zones produced by compression edge effects provide for controlled lubricant movement within the dynamic sealing interface between the seal and the relatively rotatable surface, producing enhanced lubrication and low running torque.

公开(公告)号：US20070205563A1

公开(公告)日：2007-09-06

申请号：US11649693

申请日：2007-01-04

申请人： Lannie Dietle ,  John Schroeder

发明人： Lannie Dietle ,  John Schroeder

IPC分类号： F16J15/32

CPC分类号： F16J15/3236 ,  F16J15/3244 ,  F16J15/3268

摘要： A hydrodynamic sealing assembly including a first component having first and second walls and a peripheral wall defining a seal groove, a second component having a rotatable surface relative to said first component, and a hydrodynamic seal comprising a seal body of generally ring-shaped configuration having a circumference. The seal body includes hydrodynamic and static sealing lips each having a cross-sectional area that substantially vary in time with each other about the circumference. In an uninstalled condition, the seal body has a length defined between first and second seal body ends which varies in time with the hydrodynamic sealing lip cross-sectional area. The first and second ends generally face the first and second walls, respectively. In the uninstalled condition, the first end is angulated relative to the first wall and the second end is angulated relative to the second wall. The seal body has a twist-limiting surface adjacent the static sealing lip. In the uninstalled condition, the twist-limiting surface is angulated relative to the peripheral wall and varies along the circumference. A seal body discontinuity and a first component discontinuity mate to prevent rotation of the seal body relative to the first component.

摘要翻译： 一种流体动力学密封组件，包括具有第一和第二壁的第一部件和限定密封槽的周壁，具有相对于所述第一部件的可旋转表面的第二部件，以及包括大致环形结构的密封体的流体动力密封件， 圆周 密封体包括流体动力和静态密封唇缘，每个唇部具有在周边上彼此基本上彼此变化的横截面面积。 在卸载状态下，密封体具有在第一和第二密封体端部之间限定的长度，其在流体动力学密封唇的横截面积上随时间而变化。 第一和第二端分别大致面对第一和第二壁。 在卸载状态下，第一端相对于第一壁成角度，并且第二端相对于第二壁成角度。 密封体具有邻近静密封唇的扭曲限制表面。 在卸载状态下，扭曲限制表面相对于周壁成角度，并沿圆周变化。 密封体不连续性和第一部件不连续配合以防止密封体相对于第一部件旋转。

公开(公告)号：US20050093246A1

公开(公告)日：2005-05-05

申请号：US10982821

申请日：2004-11-05

申请人： Lannie Dietle ,  John Schroeder ,  Manmohan Kalsi ,  Patricio Alvarez

发明人： Lannie Dietle ,  John Schroeder ,  Manmohan Kalsi ,  Patricio Alvarez

IPC分类号： F16J15/00 ,  F16J15/32

CPC分类号： F16J15/008 ,  F16J15/3208 ,  F16J15/3244

摘要： A rotary shaft sealing assembly in which a first fluid is partitioned from a second fluid in a housing assembly having a rotary shaft located at least partially within. In one embodiment a lip seal is lubricated and flushed with a pressure-generating seal ring preferably having an angled diverting feature. The pressure-generating seal ring and a hydrodynamic seal may be used to define a lubricant-filled region with each of the seals having hydrodynamic inlets facing the lubricant-filled region. Another aspect of the sealing assembly is having a seal to contain pressurized lubricant while withstanding high rotary speeds. Another rotary shaft sealing assembly embodiment includes a lubricant supply providing a lubricant at an elevated pressure to a region between a lip seal and a hydrodynamic seal with a flow control regulating the flow of lubricant past the lip seal. The hydrodynamic seal may include an energizer element having a modulus of elasticity greater than the modulus of elasticity of a sealing lip of the hydrodynamic seal.

摘要翻译： 一种旋转轴密封组件，其中第一流体与具有至少部分位于其中的旋转轴的壳体组件中的第二流体隔开。 在一个实施例中，唇形密封件被润滑并用具有成角度的转向特征的压力产生密封环冲洗。 压力产生密封环和流体动力密封件可用于限定润滑剂填充区域，其中每个密封件具有面向润滑剂填充区域的流体动力入口。 密封组件的另一方面是具有密封件以容纳加压润滑剂，同时承受高转速。 另一个旋转轴密封组件的实施例包括润滑剂供应，该润滑剂供应通过调节润滑剂流过​​唇形密封件的流动控制，在升高的压力下提供唇缘密封件和流体动力密封件之间的区域。 流体动力密封件可以包括具有大于流体动力密封件的密封唇的弹性模量的弹性模量的增力元件。

公开(公告)号：US20070013143A1

公开(公告)日：2007-01-18

申请号：US11488746

申请日：2006-07-18

申请人： John Schroeder ,  Jeffrey Gobeli ,  Lannie Dietle

发明人： John Schroeder ,  Jeffrey Gobeli ,  Lannie Dietle

IPC分类号： F16J15/32

CPC分类号： F16J15/3208 ,  F16J15/061 ,  F16J15/3212 ,  F16J15/3236

摘要： A preferred embodiment of a sealing assembly for partitioning a first fluid from a second fluid includes a first machine component defining a seal groove adjoined to a pocket recess and a second machine component having a relatively rotatable surface. A rotary seal is in sealing engagement with the first and second machine components. The rotary seal includes a seal body of generally ring-like construction. The seal body has a predetermined modulus of elasticity and defines a dynamic sealing lip having a dynamic sealing surface. The seal body has an annular recess defining a plurality of retaining ridges and retaining depressions. The annular recess has a first volume in an uninstalled condition and a compressed volume when the rotary seal is in sealing engagement with the first and second machine components. An energizer element is positioned in the annular recess and engages the plurality of retaining ridges and depressions in the annular recess. The energizer element has a modulus of elasticity that is different than the predetermined modulus of elasticity of the seal body. The energizer element has a volume in the compressed condition that is no greater than the compressed volume of the annular recess. An anti-rotation projection engages the seal body and extends from the seal body into the pocket recess of the first machine component.

摘要翻译： 用于从第二流体分隔第一流体的密封组件的优选实施例包括限定与凹穴相邻的密封槽的第一机器部件和具有相对可旋转表面的第二机器部件。 旋转密封件与第一和第二机器部件密封接合。 旋转密封件包括大致环形结构的密封体。 密封体具有预定的弹性模量并限定具有动态密封表面的动态密封唇。 密封体具有限定多个保持脊和保持凹陷的环形凹部。 当旋转密封件与第一和第二机器部件密封接合时，环形凹部具有处于卸载状态的第一容积和压缩体积。 激励元件定位在环形凹部中并与环形凹部中的多个保持脊和凹​​陷接合。 增能元件的弹性模量与密封体的预定的弹性模量不同。 激发元件具有不大于环形凹部的压缩体积的压缩状态的体积。 防旋转突起接合密封体并从密封体延伸到第一机器部件的凹槽中。

公开(公告)号：US6036192A

公开(公告)日：2000-03-14

申请号：US250528

申请日：1999-02-16

申请人： Lannie Dietle ,  Manmohan Singh Kalsi

发明人： Lannie Dietle ,  Manmohan Singh Kalsi

IPC分类号： F16J15/18 ,  F16J15/16 ,  F16J15/32

CPC分类号： F16J15/164 ,  F16J15/3244

摘要： A hydrodynamically lubricated squeeze packing type rotary shaft seal suitable for lubricant retention and environmental exclusion which incorporates one or more resilient protuberances which and cooperate with the gland walls to hold the seal straight in its installation groove in unpressurized and low pressure lubricant retention applications thereby preventing skew-induced wear caused by impingement of abrasive contaminants present in the environment, and which also serve as radial bearings to prevent tipping of the seal within its installation gland. Compared to prior art, this invention provides a dramatic reduction of seal and shaft wear in abrasive environments and provides a significant increase in seal life.

摘要翻译： 一种流体动力学润滑的挤压包装型旋转轴密封，适用于润滑剂保留和环境排除，其包含一个或多个弹性突起，其与压盖壁配合，以在非加压和低压润滑剂保持应用中将密封件直接保持在其安装槽中，从而防止扭曲 由环境中存在的研磨性污染物的冲击引起的磨损，并且也用作径向轴承，以防止密封件在其安装压盖内倾倒。 与现有技术相比，本发明大大减少了磨蚀环境中的密封和轴磨损，并且显着提高了密封寿命。

公开(公告)号：US5230520A

公开(公告)日：1993-07-27

申请号：US851532

申请日：1992-03-13

申请人： Lannie Dietle ,  Jeffrey D. Gobeli

发明人： Lannie Dietle ,  Jeffrey D. Gobeli

IPC分类号： E21B4/00 ,  E21B10/22 ,  E21B10/25 ,  F16J15/16 ,  F16J15/32

CPC分类号： E21B10/25 ,  E21B4/003 ,  F16J15/164 ,  F16J15/324

摘要： A hydrodynamically lubricated squeeze packing type rotary shaft with a cross-sectional geometry suitable for pressurized lubricant retention is provided which, in the preferred embodiment, incorporates a protuberant static sealing interface that, compared to prior art, dramatically improves the exclusionary action of the dynamic sealing interface in low pressure and unpressurized applications by achieving symmetrical deformation of the seal at the static and dynamic sealing interfaces. In abrasive environments, the improved exclusionary action results in a dramatic reduction of seal and shaft wear, compared to prior art, and provides a significant increase in seal life.The invention also increases seal life by making higher levels of initial compression possible, compared to prior art, without compromising hydrodynamic lubrication; this added compression makes the seal more tolerant of compression set, abrasive wear, mechanical misalignment, dynamic runout, and manufacturing tolerances, and also makes hydrodynamic seals with smaller cross-sections more practical.In alternate embodiments, the benefits enumerated above are achieved by cooperative configurations of the seal and the gland which achieve symmetrical deformation of the seal at the static and dynamic sealing interfaces. The seal may also be configured such that predetermined radial compression deforms it to a desired operative configuration, even through symmetrical deformation is lacking.

摘要翻译： 提供了具有适于加压润滑剂保留的横截面几何形状的流体动力学润滑的挤压包装型旋转轴，其在优选实施例中包含突出的静态密封界面，与现有技术相比，显着地改善了动态密封的排除作用 通过在静态和动态密封界面处实现密封件的对称变形，在低压和非加压应用中的界面。 在磨蚀性环境中，与现有技术相比，改进的排除动作导致密封件和轴磨损的显着减少，并且提供密封寿命的显着增加。 本发明还通过与现有技术相比可以实现更高水平的初始压缩而不损害流体动力润滑来增加密封寿命; 这种增加的压缩使得密封件更容忍压缩永久变形，磨损磨损，机械失准，动态跳动和制造公差，并且还使得具有较小横截面的流体动力学密封更实用。 在替代实施例中，通过在静态和动态密封界面处实现密封件的对称变形的密封件和密封件的协作构造来实现上述列举的优点。 密封件也可以被构造成使得预定的径向压缩将其变形到期望的操作构型，即使缺少对称变形也是如此。

公开(公告)号：US06685194B2

公开(公告)日：2004-02-03

申请号：US09834330

申请日：2001-04-12

申请人： Lannie Dietle ,  Manmohan S. Kalsi ,  Jeffrey D. Gobeli

发明人： Lannie Dietle ,  Manmohan S. Kalsi ,  Jeffrey D. Gobeli

IPC分类号： F16J1532

CPC分类号： F16J15/3244

摘要： A hydrodynamically lubricating seal has a generally circular seal body defining a static sealing surface and having a dynamic sealing lip projecting from the seal body for establishing sealing relation with a relatively rotatable surface. When compressed against a relatively rotatable surface, dynamic sealing lip defines a hydrodynamic geometry which wedges a film of lubricating fluid into the interface between the seal and the relatively rotatable surface in response to relative rotation. The dynamic sealing lip geometry maintains interfacial contact pressure within the dynamic sealing interface for efficient hydrodynamic lubrication and environmental exclusion, which enhances lubrication and environmental exclusion while permitting relatively high initial compression and relatively low torque. In abrasive environments, the improved exclusionary action results in a dramatic reduction of seal and shaft wear, compared to prior art, and provides a significant increase in seal life. The invention also increases seal life by making higher levels of initial compression possible, compared to prior art, without compromising hydrodynamic lubrication. This added compression makes the seal more tolerant of compression set, abrasive wear, mechanical misalignment, dynamic runout and manufacturing tolerances.

摘要翻译： 流体动力学润滑密封件具有限定静态密封表面的大致圆形的密封体，并且具有从密封体突出的动态密封唇，用于与相对可旋转的表面建立密封关系。 当相对于相对旋转的表面压缩时，动态密封唇限定了响应于相对旋转将润滑流体膜楔入密封件和相对可旋转表面之间的界面的流体动力学几何形状。 动态密封唇几何形状保持动态密封界面内的界面接触压力，以实现有效的流体动力学润滑和环境排除，从而增强润滑和环境排除，同时允许相对较高的初始压缩和相对较低的扭矩。在磨蚀性环境中，改进的排除动作导致 与现有技术相比，密封和轴的磨损大大降低，并且密封寿命显着增加。 本发明通过与现有技术相比可以实现更高水平的初始压缩而不损害流体动力学润滑来提高密封寿命。 这种增加的压缩使得密封件更容忍压缩永久变形，磨损磨损，机械失准，动态跳动和制造公差。

公开(公告)号：US5738358A

公开(公告)日：1998-04-14

申请号：US582086

申请日：1996-01-02

申请人： Manmohan S. Kalsi ,  Lannie Dietle

发明人： Manmohan S. Kalsi ,  Lannie Dietle

IPC分类号： F16J15/16 ,  F16J15/32

CPC分类号： F16J15/166 ,  F16J15/164 ,  F16J15/3224 ,  Y10S277/926

摘要： A hydrodynamically lubricated interference type rotary shaft seal suitable for environmental exclusion and high pressure lubricant retention which incorporates composite multiple modulus construction and a non-planar flexible environmental edge heel geometry which cooperate to resist high pressure extrusion damage while minimizing interfacial contact pressure and accommodating radial shaft motion.

摘要翻译： 适用于环境排除和高压润滑剂保留的流体动力学润滑干扰式旋转轴密封，其结合复合多模量结构和非平面柔性环境边缘跟部几何形状，其协同以抵抗高压挤压损伤，同时最小化界面接触压力并容纳径向轴 运动。

公开(公告)号：US5195754A

公开(公告)日：1993-03-23

申请号：US702839

申请日：1991-05-20

申请人： Lannie Dietle

发明人： Lannie Dietle

IPC分类号： E21B4/00 ,  F16C33/76

CPC分类号： E21B4/003 ,  F16C33/76

摘要： A sealing and lubrication assembly for rotating shafts intended for operation in an abrasive environment and wherein the rotary shaft may have lateral translation or excursion during its rotation. A housing receives the rotary shaft in bearing supporting relation and defines a lubricant chamber about the shaft. A seal carrier is movably positioned about the rotary shaft and has non-rotatable articulating or laterally translating relation with the housing. A high pressure rotary shaft seal is supported by the seal carrier and maintains bearing and sealing engagement with the rotary shaft during its lateral translation or excursion. The seal carrier is hydraulic force balanced and thus is not subject to pressure induced loads that might otherwise interfere with its articulation or lateral translation.

摘要翻译： 一种用于旋转轴的密封和润滑组件，用于在研磨环境中操作，并且其中旋转轴在其旋转期间可能具有侧向平移或偏移。 壳体接收轴承支撑关系中的旋转轴并围绕轴限定润滑剂室。 密封载体围绕旋转轴可移动地定位，并且与壳体具有不可旋转的铰接或横向平移关系。 高压旋转轴密封件由密封载体支撑，并在其横向平移或偏移期间保持与旋转轴的轴承和密封接合。 密封载体是液压力平衡的，因此不会受到可能干扰其铰接或侧向平移的压力引起的负载。