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公开(公告)号：US6079945A
公开(公告)日：2000-06-27
申请号：US967640
申请日：1997-11-10
CPC分类号： F01D11/005 , F16J15/3288
摘要： A brush seal, which may be used in gas or steam turbine rotor applications, includes a packet of bristles attached to a seal housing. A seal member is slideably-attached to the seal housing, has a planar first surface portion parallel to, and slideably in contact with, a first surface of the seal housing, and has a planar second surface portion which is parallel to, and slideably in contact with, a first side of the bristle packet. A mechanical spring is positioned in compression between the seal housing and the seal member.
摘要翻译： 可用于气体或汽轮机转子应用中的刷子密封件包括附接到密封壳体的刷毛包。 密封构件可滑动地附接到密封壳体，具有与密封壳体的第一表面平行并可滑动地接触的平面第一表面部分，并且具有平坦的第二表面部分，其平行于并可滑动地 与刷毛包的第一面接触。 机械弹簧被定位在密封壳体和密封构件之间的压缩中。
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公开(公告)号：US06439844B1
公开(公告)日：2002-08-27
申请号：US09733293
申请日：2000-12-11
IPC分类号： F01D1112
CPC分类号： F01D5/225 , F05D2240/56 , F16J15/3288 , F16J15/442
摘要： The adjoining edges of bucket covers are sealed one to the other. A brush seal projecting from a stationary shroud overlies the bucket covers. A joint at which the adjacent covers sealingly engage each other precludes radial outflow of high pressure fluid into bristles of the brush seal, preventing radial and axial deflection of the bristles and consequent failure of the bristles. The joints between the covers may comprise lap or tongue-and-groove joints.
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公开(公告)号：US5941685A
公开(公告)日：1999-08-24
申请号：US950082
申请日：1997-10-14
CPC分类号： F01D11/127 , F01D11/001 , F01D5/225 , F16J15/3288 , F05D2240/56
摘要： A brush seal which, among other applications, may be used for sealing a steam leakage gap between the shrouded free end of steam-turbine buckets of a steam-turbine rotor and a circumferentially surrounding steam-turbine stator. In a first embodiment, an unflexed brush seal includes bristles having a generally straight first portion secured to a backing plate and a coextensive and generally straight second portion with a free end. The second portion makes a greater angle, than that of the first portion, with respect to a directed reference line. In a second embodiment, the first and second portions are curved, wherein a tangent line to the second portion makes a greater angle than a tangent line to the first portion.
摘要翻译： 除了其它应用之外，可以使用刷密封件，其用于密封蒸汽涡轮机转子的蒸汽涡轮机叶片的被覆盖的自由端与周向周围的汽轮机定子之间的蒸汽泄漏间隙。 在第一实施例中，非弯曲的刷子密封件包括具有固定到背板的大致直的第一部分和具有自由端的共同延伸且大致直的第二部分的刷毛。 与第一部分相比，第二部分相对于定向参考线具有更大的角度。 在第二实施例中，第一和第二部分是弯曲的，其中与第二部分相切的切线比与第一部分的切线更大的角度。
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54.发明授权Method and apparatus for eliminating thermal bowing and axial thrust loads of steam turbine rotors 有权用于消除汽轮机转子的热弯曲和轴向推力的方法和装置公开(公告)号：US06517314B1
公开(公告)日：2003-02-11
申请号：US09985638
申请日：2001-11-05
申请人： Mark Edward Burnett , Norman Arnold Turnquist , Christopher Edward Wolfe , Bruce William Brisson , Fredrick George Baily , David Alan Caruso
发明人： Mark Edward Burnett , Norman Arnold Turnquist , Christopher Edward Wolfe , Bruce William Brisson , Fredrick George Baily , David Alan Caruso
IPC分类号： F01D1100
CPC分类号： F01D11/001 , F05D2240/56 , F16J15/3288
摘要： In a steam turbine, a combined brush and labyrinth seal is provided between a diaphragm web and axial projecting platforms on bucket dovetails at a location spaced radially outwardly of the outer diameter of the rotor. The downstream axially adjacent bucket dovetails also have platforms serving as complementary sealing surfaces to labyrinth teeth formed on the web. By locating the combined labyrinth and brush seal radially outwardly of the outer diameter of the shaft, thermal bowing of the rotor is eliminated. By providing backup labyrinth seals at the same radial location, axial thrust loads are eliminated in the event of brush seal failure.
摘要翻译： 在蒸汽涡轮机中，组合的刷子和迷宫式密封件设置在隔膜腹板和铲斗燕尾形的轴向突出平台之间，位于与转子外径径向向外的位置处。 下游轴向相邻的铲斗燕尾形还具有用作形成在腹板上的迷宫齿的互补密封表面的平台。 通过将组合的迷宫和刷子密封件定位在轴的外径的径向外侧，消除了转子的热弯曲。 通过在相同的径向位置提供备用迷宫式密封，在刷密封故障的情况下，轴向推力负载被消除。
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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。
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公开(公告)号：US20140001893A1
公开(公告)日：2014-01-02
申请号：US13538197
申请日：2012-06-29
申请人： Jeremy Daniel Van Dam , Norman Arnold Turnquist , Tsarafidy Raminosoa , Manoj Ramprasad Shah , Xiaochun Shen
发明人： Jeremy Daniel Van Dam , Norman Arnold Turnquist , Tsarafidy Raminosoa , Manoj Ramprasad Shah , Xiaochun Shen
IPC分类号： H02K9/00
CPC分类号： F03B3/103 , F03B13/02 , F04D13/0646 , F24T10/20 , H02K1/20 , H02K5/12 , H02K5/1285 , H02K5/132 , H02K5/20 , H02K7/088 , H02K7/14 , H02K7/1823 , H02K9/19 , H02K16/00 , H02K21/22 , H02K2213/12 , Y02E10/14 , Y02E10/223
摘要： An electric machine is presented. The electric machine includes a hollow rotor; and a stator disposed within the hollow rotor, the stator defining a flow channel. The hollow rotor includes a first end portion defining a fluid inlet, a second end portion defining a fluid outlet; the fluid inlet, the fluid outlet, and the flow channel of the stator being configured to allow passage of a fluid from the fluid inlet to the fluid outlet via the flow channel; and wherein the hollow rotor is characterized by a largest cross-sectional area of hollow rotor, and wherein the flow channel is characterized by a smallest cross-sectional area of the flow channel, wherein the smallest cross-sectional area of the flow channel is at least about 25% of the largest cross-sectional area of the hollow rotor. An electric fluid pump and a power generation system are also presented.
摘要翻译： 介绍了电机。 电机包括中空转子; 以及设置在所述中空转子内的定子，所述定子限定流动通道。 中空转子包括限定流体入口的第一端部，限定流体出口的第二端部; 定子的流体入口，流体出口和流动通道被配置为允许流体经由流动通道从流体入口流体到流体出口; 并且其中所述中空转子的特征在于中空转子的最大横截面面积，并且其中所述流动通道的特征在于所述流动通道的最小横截面面积，其中所述流动通道的最小横截面面积在 至少占中空转子最大横截面面积的25％。 还提出了电动液压泵和发电系统。
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公开(公告)号：US08113771B2
公开(公告)日：2012-02-14
申请号：US12408236
申请日：2009-03-20
CPC分类号： F16J15/445 , F01D11/025 , F05D2240/70
摘要： A spring assembly for a retractable turbine rotor seal supported in an arcuate segment may include in one embodiment a first radially inner restraining plate having a lower surface adapted to engage a surface of a turbine stator, and a flat upper surface provide with an upstanding hub; a second radially outer restraining plate having a flat lower surface and an upper surface adapted to engage a surface of the arcuate segment, the radially outer restraining plate formed with an opening receiving the upstanding hub; and at least one spring telescoped over the upstanding hub and exerting a radially outward biasing force on the second radially outer restraining plate, and adapted to exert a radially outward retracting force on the arcuate segment.
摘要翻译： 支撑在弧形段中的用于可伸缩涡轮机转子密封件的弹簧组件可以包括在一个实施例中，第一径向内部约束板具有适于接合涡轮机定子的表面的下表面，并且平坦的上表面提供直立的毂; 第二径向外约束板，其具有平坦的下表面和适于接合所述弓形段的表面的上表面，所述径向外限制板形成有接收所述直立毂的开口; 并且至少一个弹簧套叠在直立毂上并在第二径向外限制板上施加径向向外的偏置力，并且适于在弓形段上施加径向向外的缩回力。
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公开(公告)号：US20110135445A1
公开(公告)日：2011-06-09
申请号：US12630886
申请日：2009-12-04
申请人： Norman Arnold Turnquist , Keith Michael Parker , Xiaoqing Zheng , Rodrigo Rodriguez Erdmenger , Robbert Christiaan Pannekeet , Alexander Kimberley Simpson , Biao Fang
发明人： Norman Arnold Turnquist , Keith Michael Parker , Xiaoqing Zheng , Rodrigo Rodriguez Erdmenger , Robbert Christiaan Pannekeet , Alexander Kimberley Simpson , Biao Fang
CPC分类号： F16J9/20 , F05B2220/301 , F16J15/324
摘要： A pressure balance seal includes a sealing surface facing an inward radial direction, and a stator interface comprising at least one surface interfacing with a stator. The pressure balance seal further includes a friction reducing feature. The friction reducing feature includes a cavity on the sealing surface. The cavity is configured to receive a fluid such that a normal force acting on the pressure balance seal is counterbalanced by a force generated by a pressure of the fluid.
摘要翻译： 压力平衡密封件包括面向内径向的密封表面，以及包括与定子相连接的至少一个表面的定子界面。 压力平衡密封件还包括摩擦减小特征。 摩擦减小特征包括在密封表面上的空腔。 空腔构造成接收流体，使得作用在压力平衡密封件上的法向力由流体的压力产生的力抵消。
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公开(公告)号：US07651101B2
公开(公告)日：2010-01-26
申请号：US11871501
申请日：2007-10-12
IPC分类号： F16J15/447
CPC分类号： F16J15/3292 , F01D11/003 , F01D11/02 , F05D2250/12 , F05D2250/13 , F05D2250/70 , Y10T29/4932
摘要： A shaft seal serves to reduce leakage between a rotating shaft and a static shell. The shaft seal includes a plurality of compliant plate members, each having a root and a tip. The compliant plate members are secured to the static shell at their root in facing relation. The tips of the compliant plate members define a sealing ring between the static shell and the rotating shaft. An axial flow resistance member is disposed within the compliant plate members and serves as a barrier to axial leakage flow between the compliant plate members.
摘要翻译： 轴密封件用于减少旋转轴和静态外壳之间的泄漏。 轴封包括多个柔性板构件，每个具有根部和尖端。 柔性板构件在其根部处以面对关系固定到静态壳体上。 柔性板构件的尖端在静态壳和旋转轴之间限定密封环。 轴向阻力构件设置在柔性板构件内并用作在柔性板构件之间的轴向泄漏流动的障碍。
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公开(公告)号：US20080107525A1
公开(公告)日：2008-05-08
申请号：US11591567
申请日：2006-11-02
申请人： William Edward Adis , Norman Arnold Turnquist , Sean Douglas Feeny , Shorya Awtar , Jason P. Mortzheim
发明人： William Edward Adis , Norman Arnold Turnquist , Sean Douglas Feeny , Shorya Awtar , Jason P. Mortzheim
CPC分类号： F16J15/3292
摘要： A shaft seal reduces leakage between a rotating shaft and a stator. The shaft seal includes a plurality of plate members attached to the stator in facing relation. The plate members define a sealing ring between the stator shell and the rotating shaft. A thickness of the plate members tapers from thick to thin from a stator end to a rotating shaft end. In this manner, with the more tightly packed tips of the plate members, axial leakage is reduced by tapering the plate members so that the plate roots are thicker than the plate tips.
摘要翻译： 轴封可减少旋转轴和定子之间的泄漏。 轴封包括以面对关系附接到定子的多个板构件。 板构件在定子壳和旋转轴之间限定密封环。 板构件的厚度从定子端到旋转轴端从厚到浅逐渐变细。 以这种方式，随着板构件的更紧密堆积的尖端，通过使板构件逐渐变细使得板根比板尖更厚而减小轴向泄漏。
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