Pressure actuated brush seal
    31.
    发明授权
    Pressure actuated brush seal 失效
    压力驱动刷密封

    公开(公告)号:US06505834B1

    公开(公告)日:2003-01-14

    申请号:US09682965

    申请日:2001-11-02

    IPC分类号: F16T1546

    摘要: An embodiment providing a seal assembly for turbomachinery for controlling flow of a fluid medium in a fluid path comprises a casing having an internal pressure load path and a seal carrier chamber. A movable seal carrier is disposed within the seal carrier chamber and interposed between the pressure load path and an external flow path. In addition, a pressure selecting apparatus is coupled to the pressure load path to control flow therethrough. Moreover, the position of the movable seal carrier moves in response to a pressure differential determined by the pressure selecting apparatus between the pressure load path and the external flow path.

    摘要翻译: 提供用于涡轮机械的密封组件的实施例用于控制流体路径中的流体介质的流动包括具有内部压力负载路径和密封载体室的壳体。 可移动密封载体设置在密封载体室内并且插入在压力负载路径和外部流动路径之间。 此外,压力选择装置联接到压力负载路径以控制流过其中的流量。 此外,可移动密封载体的位置响应于压力选择装置在压力负载路径和外部流动路径之间确定的压差而移动。

    Actuating seal carrier for a turbine and method of retrofitting
    32.
    发明授权
    Actuating seal carrier for a turbine and method of retrofitting 失效
    用于涡轮机的致动密封载体和改装方法

    公开(公告)号:US06502823B1

    公开(公告)日:2003-01-07

    申请号:US09683277

    申请日:2001-12-07

    IPC分类号: F01D1102

    摘要: A seal assembly is provided for a rotary machine wherein the rotary machine comprises a rotor and a casing. The rotor comprises a generally longitudinally-extending axis wherein the casing is generally coaxially aligned with the axis. The casing circumferentially surrounds and is radially spaced apart from the rotor wherein the casing comprises an inner circumferential channel generally coaxially aligned with the rotor. The seal assembly comprises a plurality of seal segments disposable in a circumferential array in the channel so as to be movable between radially inward and radially outward positions. In addition, the seal assembly comprises a plurality of displacement apparatuses comprising at least one fluid inlet and configured for urging apart the seal segments upon introduction of a fluid medium in the fluid inlet. Each of the seal segments comprises an end having at least one of the displacement apparatuses circumferentially disposed thereon.

    摘要翻译: 为旋转机器提供密封组件,其中旋转机器包括转子和壳体。 转子包括大致纵向延伸的轴线,其中壳体大致与轴线同轴对准。 壳体周向地包围并且与转子径向间隔开,其中壳体包括通常与转子同轴对准的内周通道。 密封组件包括在通道中以周向排列的一次性的多个密封段,以便能够在径向向内和径向向外的位置之间移动。 此外,密封组件包括多个位移装置,其包括至少一个流体入口并且构造成用于在将流体介质引入流体入口时推压密封段。 每个密封段包括具有周向设置在其上的位移设备中的至少一个的端部。