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105 条记录 (耗时 0.045 秒)

    Low leakage snout sealing system
    24.
    发明授权
    Low leakage snout sealing system 失效
    低泄漏口密封系统

    公开(公告)号：US06454270B1

    公开(公告)日：2002-09-24

    申请号：US09737088

    申请日：2000-12-14

    申请人： Wei-Ming Chi ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe ,  Mark Arne Florin ,  Mahmut Faruk Aksit

    发明人： Wei-Ming Chi ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe ,  Mark Arne Florin ,  Mahmut Faruk Aksit

    IPC分类号： F16J1508

    CPC分类号： F16J15/28

    摘要： A low leakage sealing system is provided between a steam pipe and a housing comprised of a pair of shells and a nozzle box movable relative to one another. The sealing system includes large and small diameter sealing rings engaging the pipe and shells or nozzle box and a secondary sealing element disposed between the sealing rings and one of the pipe and shells or nozzle box. The sealing elements comprise frustoconical elements having curved end surfaces forming primary seals with the sealing rings and the housing. In another form, the sealing system includes annular carrier elements having radially opening cavities for receiving sealing rings engageable with the pipe and housing, respectively. The carrier elements are axially spaced from a plurality of sealing rings to provide the low leakage sealing system.

    摘要翻译： 在蒸汽管和由一对壳体组成的壳体和可相对于彼此移动的喷嘴箱之间提供低泄漏密封系统。 密封系统包括与管和壳或喷嘴箱接合的大直径和小直径的密封环，以及设置在密封环与管和壳或喷嘴箱中的一个之间的次级密封元件。 密封元件包括具有弯曲端面的截头圆锥元件，其形成具有密封环和壳体的主密封。 在另一种形式中，密封系统包括具有径向开口腔的环形载体元件，用于接收分别与管道和壳体接合的密封环。 载体元件与多个密封环轴向间隔开以提供低泄漏密封系统。

    Positive biased packing ring brush seal combination
    25.
    发明授权
    Positive biased packing ring brush seal combination 有权
    正偏压填料环刷密封组合

    公开(公告)号：US06250641B1

    公开(公告)日：2001-06-26

    申请号：US09199730

    申请日：1998-11-25

    申请人： Osman Saim Dinc ,  Norman Arnold Turnquist ,  Robert Harold Cromer ,  George Ernest Reluzco ,  Christopher Edward Wolfe

    发明人： Osman Saim Dinc ,  Norman Arnold Turnquist ,  Robert Harold Cromer ,  George Ernest Reluzco ,  Christopher Edward Wolfe

    IPC分类号： F16J15447

    CPC分类号： F16J15/442 ,  F16J15/3288 ,  F16J15/4472

    摘要： Circumferentially extending sealing segments (45) are disposed about a rotary component (16) and have seal face (34) carrying a plurality of labyrinth seal teeth (36) and a brush seal (37). The segments are movable between large and small clearance positions relative to the rotor at start-up and steady-state operating conditions, respectively. In one form, springs (31) bias the segments radially outwardly at start-up and steam pressure displaces the segments to the small clearance positions at steady-state operations. In a further embodiment, springs bias the segment for movement to the small clearance position, the extent of movement being determined by thermal expansion of centering rings mounting the segments to the stationary components.

    摘要翻译： 周向延伸的密封段（45）围绕旋转部件（16）设置并且具有承载多个迷宫式密封齿（36）和刷密封件（37）的密封面（34）。 分段在启动和稳态运行条件下分别相对于转子在大间隙位置和小间隙位置之间可移动。 在一种形式中，弹簧（31）在启动时径向向外偏压节段，并且在稳态操作时，蒸汽压将段移动到小间隙位置。 在进一步的实施例中，弹簧偏置该段用于移动到小间隙位置，移动的程度由通过将段安装到固定部件的定心环的热膨胀来确定。

    Self-centering brush seal
    26.
    发明授权
    Self-centering brush seal 失效
    自定心刷密封

    公开(公告)号：US06168162A

    公开(公告)日：2001-01-02

    申请号：US09129335

    申请日：1998-08-05

    申请人： George Ernest Reluzco ,  Donald Ernest Woodmansee ,  Osman Saim Dinc ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

    发明人： George Ernest Reluzco ,  Donald Ernest Woodmansee ,  Osman Saim Dinc ,  Norman Arnold Turnquist ,  Christopher Edward Wolfe

    IPC分类号： F16J1102

    CPC分类号： F16J15/3288 ,  Y10S277/926

    摘要： A self-centering brush seal is disposed in an annular groove formed in a stationary component about a rotatable component, the stationary and rotatable components having a common axis. The brush seal includes a plurality of bristles projecting into sealing engagement with the rotating component. The brush seal has a radial clearance in the groove enabling the brush seal for free-floating radial excursions within the groove to maintain concentricity with the rotary component notwithstanding deviation of the axis of rotation of the rotating component relative to the axis of the fixed component. In another form, the brush seal comprises a plurality of arcuate segments having a helical coil spring biasing the segments for radial movement enabling the tips of the bristles to seal against the rotatable component. In a further embodiment, leaf springs bias each segment to maintain its bristles in engagement with the rotatable component. In a still further embodiment, the seal segments are pressure balanced in a radial direction with an O-ring seal sealing high and low pressure regions on opposite sides of the segments.

    摘要翻译： 自定心刷密封件设置在围绕可旋转部件形成在固定部件中的环形槽中，固定和可旋转部件具有公共轴线。 刷密封包括突出成与旋转部件密封接合的多个刷毛。 刷密封件在槽中具有径向间隙，使得刷密封件能够在凹槽内自由浮动的径向偏移，以保持与旋转部件的同心度，尽管旋转部件的旋转轴线相对于固定部件的轴线的偏离。 在另一种形式中，刷子密封件包括多个弧形段，其具有螺旋螺旋弹簧，所述螺旋弹簧偏置所述段用于径向移动，使得刷毛的尖端能够密封抵靠可旋转部件。 在另一实施例中，板簧对每个片段进行偏置以保持其刷毛与可旋转部件接合。 在又一个实施例中，密封段在径向方向上被压力平衡，O形环密封件密封了段的相对侧上的高压区域和低压区域。

    Brush seal segment
    27.
    发明授权
    Brush seal segment 失效
    刷子密封段

    公开(公告)号：US6105966A

    公开(公告)日：2000-08-22

    申请号：US131485

    申请日：1998-08-10

    申请人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  George Ernest Reluzco ,  Robert Harold Cromer ,  David Robert Skinner ,  Christopher Edward Wolfe

    发明人： Norman Arnold Turnquist ,  Osman Saim Dinc ,  George Ernest Reluzco ,  Robert Harold Cromer ,  David Robert Skinner ,  Christopher Edward Wolfe

    IPC分类号： F01D11/02 ,  F01D1/00 ,  F01D25/24 ,  F16J15/22 ,  F16J15/32 ,  F16J15/447

    CPC分类号： F16J15/3288

    摘要： A brush seal segment useful, when circumferentially arrayed with other such segments, to seal the gap between a rotor and a surrounding casing of a rotary machine such as a steam turbine. An annular backing plate has a rim radially-inwardly bounding together upstream-facing and downstream-facing surfaces. Canted bristles abut the upstream-facing surface. The rim is designed to allow the bristles to recover from a rotor rub. In one design, the rim acts as a labyrinth-seal tooth and is shaped to deform, under a radial force, longitudinally away from the upstream-facing surface. In another design, the rim has a more-inwardly projecting second portion near a radially-aligned edge, and only this second portion acts as a labyrinth-seal tooth.

    摘要翻译： 当用其它这种部分周向排列时，用于密封旋转机器（例如蒸汽轮机）的转子和周围壳体之间的间隙的刷密封段是有用的。 环形背板具有径向向内限定在一起的面向上游和下游的表面的边缘。 鬃毛紧靠着面向上游的表面。 轮辋旨在使刷毛从转子摩擦中恢复。 在一种设计中，轮辋用作迷宫式密封齿并且成形为在径向力作用下纵向远离上游侧表面变形。 在另一种设计中，轮辋在径向对齐的边缘附近具有更向内突出的第二部分，并且仅该第二部分用作迷宫式密封齿。

    Anti-hysteresis brush seal
    29.
    发明授权
    Anti-hysteresis brush seal 失效
    抗滞后刷密封

    公开(公告)号：US5961280A

    公开(公告)日：1999-10-05

    申请号：US928114

    申请日：1997-09-12

    申请人： Norman Arnold Turnquist ,  Christopher Edward Wolfe ,  Osman Saim Dinc

    发明人： Norman Arnold Turnquist ,  Christopher Edward Wolfe ,  Osman Saim Dinc

    IPC分类号： F16J15/32 ,  F04D29/08

    CPC分类号： F16J15/3292

    摘要： A brush seal which, among other applications, may be used for sealing a steam leakage gap between a steam turbine rotor and a steam turbine casing. A brush seal backing plate has a surface which includes adjacent first and second areas. First and second bristle packets contact and generally cover, respectively, the first and second areas. A first anti-hysteresis plate is positioned between and contacts the first and second bristle packets, is aligned generally perpendicular to the backing plate, and is proximate and generally spaced apart from the backing plate. The anti-hysteresis plate restores the bristles which would otherwise become set in a non-sealing position against the backing plate because of transient events such as thermal differential growth or relative movement of the rotor and casing.

    摘要翻译： 除了其它应用之外，刷密封可用于密封蒸汽涡轮机转子和汽轮机壳体之间的蒸汽泄漏间隙。 刷密封背板具有包括相邻的第一和第二区域的表面。 第一和第二刷毛包分别接触并通常分别覆盖第一和第二区域。 第一抗滞后板定位在第一和第二刷毛包之间并且与第一和第二刷毛包接触，大体上垂直于背板排列，并且与背板接近并且大体间隔开。 抗滞后板恢复刷毛，否则由于瞬时事件（例如热差增长或转子和壳体的相对运动）而将背对板设置在非密封位置。