利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.01 秒)

    Seal assembly for hydraulic pump output shaft
    1.
    发明申请
    Seal assembly for hydraulic pump output shaft 审中-公开
    液压泵输出轴密封组件

    公开(公告)号：US20060188381A1

    公开(公告)日：2006-08-24

    申请号：US11124468

    申请日：2005-05-06

    申请人： Mingfong Hwang ,  Cynthia Byers ,  William Ryan ,  Daniel Birchak

    发明人： Mingfong Hwang ,  Cynthia Byers ,  William Ryan ,  Daniel Birchak

    IPC分类号： F01C1/02

    CPC分类号： F04B1/0448 ,  F04C15/0038

    摘要： A seal assembly for a hydraulic pump is provided. The assembly includes a spacer ring, a rotor having a first side and a second side, the first side engaging the spacer ring, and a spring-loaded face seal having a face in contact with the rotor second side, where the face seal is configured to supply a force against the rotor sufficient to cause the face seal face to sealingly engage the rotor second side.

    摘要翻译： 提供了一种用于液压泵的密封组件。 所述组件包括间隔环，具有第一侧和第二侧的转子，所述第一侧与所述间隔环接合;以及弹簧加载的面密封件，其具有与所述转子第二侧接触的面，所述面密封件被配置 向转子提供足以使面密封面密封地接合转子第二侧的力。

    Seal for sealing an incompressible fluid between a relatively stationary seal and a movable member
    2.
    发明授权
    Seal for sealing an incompressible fluid between a relatively stationary seal and a movable member 失效
    用于在相对固定的密封件和可动构件之间密封不可压缩流体的密封件

    公开(公告)号：US5558341A

    公开(公告)日：1996-09-24

    申请号：US371283

    申请日：1995-01-11

    申请人： Alan D. McNickle ,  Mingfong Hwang ,  Adam N. Pope

    发明人： Alan D. McNickle ,  Mingfong Hwang ,  Adam N. Pope

    IPC分类号： F16J15/34

    CPC分类号： F16J15/3488

    摘要： A seal structure is provided having a configuration with a very small seal gap between a relatively stationary seal member and a complementary surface on a movable (rotatable) member (such as a rotating shaft) adjacent to which the stationary seal member is mounted. The stationary seal member is movable toward and away from the movable seal member so as to vary the seal gap therebetween. The seal is effective in applications where an incompressible fluid is provided on the high pressure side of the stationary seal member so that leakage along the seal gap is of an incompressible fluid into a lower pressure region on the other side of the seal gap. A sealing dam is provided on the stationary seal member on its sealing face adjacent the low pressure end of the seal gap. A plurality of elongated pads are formed on the sealing surface of the stationary seal member on the high pressure side of the sealing dam, extending perpendicularly to the direction of leakage flow along the seal gap. Lift pockets are formed in predetermined pads and positioned such that fluid is forced into the pocket by the velocity shearing gradient between the movable and stationary members to generate an increased pressure in the pockets to move the stationary seal member away from the movable member to increase the seal gap between the two. The lift pocket is of a depth sufficient, in the event of wear of the lift pocket surface, to result in a pressure increase in the lift pocket as a consequence of its reduction in depth to move the seal member away from the movable member, thereby causing the seal gap to become self-regulating in size. Several embodiments and modifications are presented.

    摘要翻译： 提供一种密封结构，其具有在相对固定的密封构件和与固定密封构件相邻的可移动（可旋转的）构件（例如旋转轴）上的互补表面之间具有非常小的密封间隙的构造。 固定密封构件能够朝向和远离可移动密封构件移动，以便改变它们之间的密封间隙。 密封件在固定密封构件的高压侧设置有不可压缩流体的应用中是有效的，使得沿着密封间隙的泄漏是不可压缩的流体进入密封间隙的另一侧的较低压力区域。 在与密封间隙的低压端相邻的密封面上的固定密封构件上设置密封堤。 在密封坝的高压侧的固定密封构件的密封面上形成有多个细长的垫，与密封间隙的泄漏方向垂直。 提升袋形成在预定的垫中并且定位成使得流​​体通过可移动和静止构件之间的速度剪切梯度被迫进入袋中，以在袋中产生增加的压力，以使固定的密封构件远离可动构件移动以增加 两者之间的密封差距。 升降口袋的深度足以在升降口袋表面磨损的情况下，由于其深度减小而使密封构件远离可动构件而导致提升口袋中的压力增加，从而 导致密封间隙自动调节。 呈现了几个实施例和修改。

    Seal pressure vent system for a waterjet apparatus
    4.
    发明授权
    Seal pressure vent system for a waterjet apparatus 失效
    用于喷水装置的密封压力通风系统

    公开(公告)号：US07361068B2

    公开(公告)日：2008-04-22

    申请号：US11444088

    申请日：2006-05-31

    申请人： Mingfong Hwang ,  Arun Kumar ,  Albert G. Selder ,  William A. Facinelli ,  Louie T. Gaines

    发明人： Mingfong Hwang ,  Arun Kumar ,  Albert G. Selder ,  William A. Facinelli ,  Louie T. Gaines

    IPC分类号： B63H11/00 ,  B63H11/103

    CPC分类号： B63H11/08 ,  B63H23/321 ,  B63H2011/081 ,  B63H2023/327 ,  F04D29/106

    摘要： A seal pressure vent system for a waterjet propulsion apparatus including a water intake section and a pumping unit. The pumping unit is designed such that in operation the seal pressure vent system provides a fluidic path for the flow of high pressure water away from a lip seal assembly toward a near ambient pressure region. The seal vent system includes a plurality of fluid passageways formed in a stator structure in conjunction with a water barrier ring, a tail cone including an extended flange, or a modified stator web structure.

    摘要翻译： 一种用于包括进水部分和抽水单元的水射流推进装置的密封压力通气系统。 泵送单元被设计成使得在操作中，密封压力通风系统提供用于将高压水流从唇形密封组件朝向接近环境压力区域流动的流体路径。 密封通气系统包括与防水环结合的定子结构中形成的多个流体通道，包括延伸凸缘的尾锥或改进的定子腹板结构。

    Seal pressure vent system for a waterjet apparatus
    6.
    发明申请
    Seal pressure vent system for a waterjet apparatus 失效
    用于喷水装置的密封压力通风系统

    公开(公告)号：US20070281560A1

    公开(公告)日：2007-12-06

    申请号：US11444088

    申请日：2006-05-31

    申请人： Mingfong Hwang ,  Arun Kumar ,  Albert G. Selder ,  William A. Facinelli ,  Louie T. Gaines

    发明人： Mingfong Hwang ,  Arun Kumar ,  Albert G. Selder ,  William A. Facinelli ,  Louie T. Gaines

    IPC分类号： B63H11/00

    CPC分类号： B63H11/08 ,  B63H23/321 ,  B63H2011/081 ,  B63H2023/327 ,  F04D29/106

    摘要： A seal pressure vent system for a waterjet propulsion apparatus including a water intake section and a pumping unit. The pumping unit is designed such that in operation the seal pressure vent system provides a fluidic path for the flow of high pressure water away from a lip seal assembly toward a near ambient pressure region. The seal vent system includes a plurality of fluid passageways formed in a stator structure in conjunction with a water barrier ring, a tail cone including an extended flange, or a modified stator web structure.

    摘要翻译： 一种用于包括进水部分和抽水单元的水射流推进装置的密封压力通气系统。 泵送单元被设计成使得在操作中，密封压力通风系统提供用于将高压水流从唇形密封组件朝向接近环境压力区域流动的流体路径。 密封通气系统包括与防水环结合的定子结构中形成的多个流体通道，包括延伸凸缘的尾锥或改进的定子腹板结构。

    Shaft oil purge system
    7.
    发明申请
    Shaft oil purge system 有权
    轴油清洗系统

    公开(公告)号：US20060267290A1

    公开(公告)日：2006-11-30

    申请号：US11134177

    申请日：2005-05-20

    申请人： Doug Spencer ,  Mohsiul Alam ,  Mingfong Hwang

    发明人： Doug Spencer ,  Mohsiul Alam ,  Mingfong Hwang

    IPC分类号： F16J15/00

    CPC分类号： F01D25/183 ,  F01D11/02 ,  F02C7/28

    摘要： A shaft oil purge system comprises an entrance seal, an exit seal and a buffer air flow. The entrance seal comprises a circumferential carbon seal running on an inner shaft and another carbon seal running on an outer shaft. The exit seal comprises a labyrinth seal positioned on the inner shaft and towards the exit end of the annulus between the shafts. An abradable material filled groove positioned radially outward from the exit seal allows the inner shaft to rub without compromising the integrity of the outer shaft. The buffer air flow enters the annulus from a cavity at the entrance seal, purges oil from the annulus and improves the efficiency of the seals.

    摘要翻译： 轴油清洗系统包括入口密封件，出口密封件和缓冲空气流。 入口密封件包括在内轴上延伸的圆周碳密封件和在外轴上运行的另一碳密封件。 出口密封件包括位于内轴上并且朝向轴之间的环空的出口端的迷宫式密封件。 从出口密封件径向向外定位的可磨损材料填充槽允许内轴摩擦而不损害外轴的完整性。 缓冲空气流从入口密封件的空腔进入环形空间，从环形空气中清除油脂并提高密封件的效率。

    Hydrodynamic lift seal for use with compressible fluids
    8.
    发明授权
    Hydrodynamic lift seal for use with compressible fluids 有权
    用于可压缩流体的流体动力升降密封

    公开(公告)号：US6145843A

    公开(公告)日：2000-11-14

    申请号：US175870

    申请日：1998-10-19

    申请人： Mingfong Hwang

    发明人： Mingfong Hwang

    IPC分类号： F16J15/44 ,  F16J15/30

    CPC分类号： F16J15/442

    摘要： This invention discloses a completely different hydrodynamic gas seal configuration from both the Rayleigh bearing and other prior art. Instead of the shallow, wide, and short single pocket geometry for the Rayleigh bearing, and instead of the multiple depth grooves of the other prior art teachings, the hydrodynamic seal in this invention has a sealing face with lift pockets therein that are deep (normally in the range of about 0.010 inches to about 0.025 inches deep), narrow, long, multiple, coextensive, parallel, and single-depth. This invention incorporates the same basic hydraulic principle of generating pressure rise by the shearing gradient between the rotating shaft and stationary carbon elements, and therefore produces a force which is opposite in direction to the rubbing force generated by the ambient pressure drop across the seal. In this invention the forces are more evenly balanced across the axial face of the seal ring segments, thereby accommodating any conicity of the shaft race. Seals of both the circumferential type and the face type are provided. Furthermore, the lift pockets are of a depth sufficient that, in the event of wear of the sealing face, an increase in pressure in the lift pockets occurs as a consequence of the reduction in depth to move the seal member away from the rotating shaft, thereby causing the seal gap to be self-regulating in size.

    摘要翻译： 本发明公开了与瑞利轴承和其它现有技术两者完全不同的流体动力气密封构造。 代替瑞利轴承的浅的，宽的和短的单个袋形几何形状，并且代替其它现有技术教导的多个深度凹槽，本发明中的流体动力学密封件具有密封面，其中提升凹穴是深的（通常 在约0.010英寸至约0.025英寸深的范围内），窄，长，多重，共同延伸，平行和单一深度。 本发明包括通过旋转轴和固定碳元素之间的剪切梯度产生压力升高的相同的基本液压原理，因此产生与通过密封件的环境压降产生的摩擦力相反的方向的力。 在本发明中，力在密封环段的轴向面上更均匀地平衡，由此容纳轴座的任何锥度。 提供周向型和面型的密封。 此外，升降口具有足够的深度，使得在密封面磨损的情况下，由于使密封构件远离旋转轴的深度减小，提升袋中的压力增加， 从而导致密封间隙的尺寸自调节。