Fluidic actuator for application inside turbomachinery
    42.
    发明申请
    Fluidic actuator for application inside turbomachinery 有权
    用于涡轮机械内部的流体致动器

    公开(公告)号:US20080098884A1

    公开(公告)日:2008-05-01

    申请号:US11588952

    申请日:2006-10-27

    IPC分类号: F16J15/18

    摘要: Disclosed is an actuator that includes a cylinder having an input port, a piston disposed at least partially inside of the cylinder, and one or more piston rings disposed in a circumferential piston ring groove or grooves. The actuator also includes at least one spring, inserted into the circumferential piston ring groove adjacent to the one or more piston rings and a high pressure side of said piston ring. The spring preloads the one or more piston rings to seal between a low pressure face of the one or more piston rings and a low pressure face of the circumferential piston ring groove. The invention also includes a method for moving an adjustable seal in a radial direction using the piston-ring sealed actuator. The method includes moving the adjustable seal in an axial direction, breaking a primary axial contact between the adjustable seal and a primary sealing face.

    摘要翻译: 公开了一种致动器,其包括具有输入端口的气缸,至少部分地设置在气缸内部的活塞以及设置在周向活塞环槽或凹槽中的一个或多个活塞环。 致动器还包括至少一个弹簧,其插入到与一个或多个活塞环相邻的圆周活塞环槽和所述活塞环的高压侧。 弹簧预加载一个或多个活塞环以在一个或多个活塞环的低压面和周向活塞环槽的低压面之间进行密封。 本发明还包括使用活塞环密封的致动器沿径向移动可调节密封件的方法。 该方法包括沿轴向方向移动可调节密封件,从而破坏可调节密封件与主密封面之间的主轴向接触。

    Shaft seal using shingle members
    43.
    发明申请
    Shaft seal using shingle members 失效
    轴密封采用瓦楞构件

    公开(公告)号:US20080061513A1

    公开(公告)日:2008-03-13

    申请号:US11519044

    申请日:2006-09-12

    IPC分类号: F16J15/44

    摘要: A shaft seal reduces leakage between a rotating shaft such as a rotor and a stator. The shaft seal or shingle seal includes a plurality of compliant-plate members attached to the stator in facing relation. The compliant-plate members define a sealing ring between the stator and the rotating shaft. Each of the compliant-plate members includes a plurality of shingles, where adjacent compliant-plate members are disposed relative to each other such that the shingles are at least partially staggered in a direction of axial leakage.

    摘要翻译: 轴密封件减少诸如转子的旋转轴和定子之间的泄漏。 轴封或瓦片密封件包括以面对关系附接到定子的多个柔性板构件。 柔性板构件在定子和旋转轴之间限定密封环。 每个柔性板构件包括多个带状件,其中相邻的柔性板构件相对于彼此设置,使得带状板在轴向泄漏的方向上至少部分地交错。

    Method and apparatus for turbomachine active clearance control
    44.
    发明授权
    Method and apparatus for turbomachine active clearance control 有权
    用于涡轮机主动间隙控制的方法和装置

    公开(公告)号:US07125223B2

    公开(公告)日:2006-10-24

    申请号:US10675364

    申请日:2003-09-30

    IPC分类号: F01D11/22 F01D11/16

    摘要: An apparatus for providing active clearance control between blade tips and seals in a turbomachine comprising: a first stator carrier segment, with stator seals centripetally disposed on it; a second stator carrier segment located along a same circumference as the first stator carrier segment, also with stator seals centripetally disposed on it; a shell that adjustably houses the first stator carrier segment and the second carrier segment; at least one displacement apparatus in operable communication with at least one stator carrier segment and configured to position the at least one stator carrier segment to provide active clearance control to the stator seals disposed on the at least one stator carrier segment.

    摘要翻译: 一种用于在涡轮机中的叶片尖端和密封之间提供主动间隙控制的装置,包括:第一定子承载段,定子密封件向心地设置在其上; 沿与第一定子承载段相同的圆周定位的第二定子载体段,其中定子密封件向心地设置在其上; 壳体,其可调节地容纳所述第一定子承载段和所述第二载体段; 至少一个位移设备,其与至少一个定子承载段可操作地连通并且被配置为定位所述至少一个定子承载段,以对设置在所述至少一个定子承载段上的所述定子密封件提供主动间隙控制。

    Method and apparatus for rotary machine vibration control
    45.
    发明授权
    Method and apparatus for rotary machine vibration control 失效
    旋转机械振动控制方法及装置

    公开(公告)号:US06920794B2

    公开(公告)日:2005-07-26

    申请号:US10065346

    申请日:2002-10-07

    摘要: A vibration control system for a rotary machine having a rotor, includes a sensor disposed within the rotary machine for sensing vibration of the rotor, a vibration damping device disposed within the rotary machine for imparting a reaction force to the rotor, and a controller arranged in operable communication with the sensor and the vibration damping device. The controller is adapted to receive a sensor signal from the sensor and to send a control signal to the vibration damping device for damping the vibration of the rotor.

    摘要翻译: 一种用于具有转子的旋转机械的振动控制系统,包括设置在旋转机器内用于感测转子振动的传感器,设置在旋转机械内的用于向转子施加反作用力的减振装置,以及布置在 与传感器和减振装置的可操作的通信。 控制器适于接收来自传感器的传感器信号,并将控制信号发送到减震装置,以阻尼转子的振动。

    Bucket tip brush seals in steam turbines and methods of installation
    47.
    发明授权
    Bucket tip brush seals in steam turbines and methods of installation 失效
    蒸汽涡轮机中的铲头刷密封件和安装方法

    公开(公告)号:US06431827B1

    公开(公告)日:2002-08-13

    申请号:US09741742

    申请日:2000-12-21

    IPC分类号: F01D1108

    摘要: A diaphragm has an annular groove formed of deep and shallow grooves with the deep groove opening into the shallow groove. A combination spill strip/brush seal is disposed in the groove. The brush seal comprises a pair of flexible bars secured to the proximal ends of the brush bristles by welding and is received in the shallow groove and a recess in an axial face of the spill strip. The spill strip has base portions extending into the deep groove. The combination spill strip/brush seal is secured in the annular groove by peening material of the diaphragm into the spill strip/brush seal combination. The brush seal may be used with different diameters of spill strips and diaphragm grooves.

    摘要翻译: 隔膜具有由深而浅的槽形成的环形槽,深槽通向浅槽。 组合式溢流条/刷密封件设置在凹槽中。 刷子密封件包括通过焊接固定到刷毛的近端的一对柔性杆,并且容纳在浅槽中和在溢出条的轴向面中的凹部。 溢出带具有延伸到深槽中的基部。 通过将隔膜的材料喷丸到溢流带/刷子密封组合中,组合的溢出带/刷子密封件固定在环形槽中。 刷密封件可以与不同直径的溢流带和隔膜槽一起使用。

    Arrangement and method for accurately radially locating a turbine brush seal
    48.
    发明授权
    Arrangement and method for accurately radially locating a turbine brush seal 失效
    涡轮刷密封的精确径向定位的布置和方法

    公开(公告)号:US06261057B1

    公开(公告)日:2001-07-17

    申请号:US09412072

    申请日:1999-10-04

    IPC分类号: F01D500

    摘要: An arrangement and method for accurately radially locating a brush seal relative to a rotor provides a labyrinth seal segment having a slot open toward the rotor and defining an interior ledge facing away from the rotor, a brush seal segment inserted in the slot and having an exterior shoulder facing toward the rotor and overlying the interior ledge of the labyrinth seal segment such that the brush seal segment can move radially relative to the labyrinth seal segment and rotor and the shoulder of the brush seal segment can move toward and away from the interior ledge of the labyrinth seal segment, and set screws tightened into spaced apart threaded holes in the labyrinth seal segment forcing the shoulder of the brush seal segment against the ledge of the labyrinth seal segment so as to prevent radial floating of the brush seal segment relative to the labyrinth seal segment.

    摘要翻译: 用于相对于转子精确地径向定位刷子密封件的布置和方法提供了一种迷宫式密封件,其具有朝向转子敞开的狭槽,并限定了背向转子的内部凸缘,插入槽中的刷子密封件段 肩部朝向转子并且覆盖迷宫式密封段的内部凸缘,使得刷密封段可相对于迷宫式密封段和转子径向移动,并且刷式密封段的肩部可以朝向和远离内部凸缘 迷宫式密封段和固定螺丝拧紧在迷宫密封段中的间隔开的螺纹孔中,迫使刷子密封段的肩部抵靠迷宫式密封段的凸缘,以防止刷密封段相对于迷宫的径向漂浮 密封段。

    Positive biased packing ring brush seal combination
    49.
    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

    IPC分类号: F16J15447

    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
    50.
    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

    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。