Passive thermostatic bypass flow control for a brush seal application
    1.
    发明授权
    Passive thermostatic bypass flow control for a brush seal application 失效
    被动恒温旁路流量控制用于刷子密封应用

    公开(公告)号:US07445424B1

    公开(公告)日:2008-11-04

    申请号:US11409925

    申请日:2006-04-22

    IPC分类号: F01D11/04

    摘要: In a gas turbine engine having a rim cavity formed between a rotor disk and a stator, and a brush seal or other seal member providing an airflow seal between the stator and a side plate of the rotor disk, a thermally responsive valve device is located in the bypass passage of the stator to form a parallel air flow path with the brush seal. As the brush seal wears and the leakage airflow around the worn brush seal increases, the air flow temperature in the rim cavity would decrease. The thermally responsive valve device would detect the decreasing airflow temperature, and reduce the airflow passing through the bypass passage in order to prevent the temperature of the rim cavity from decreasing. The temperature responsive valve device makes use of a bimetallic valve member that regulates airflow based upon temperature.

    摘要翻译: 在具有形成在转子盘和定子之间的边缘空腔的燃气涡轮发动机中,以及在定子和转子盘的侧板之间提供气流密封的刷密封件或其他密封构件,热响应阀装置位于 定子的旁路通道与刷密封件形成平行的空气流动路径。 当刷子密封件磨损并且磨损的刷密封件周围的泄漏气流增加时,轮辋腔中的空气流动温度将降低。 热响应阀装置将检测气流温度的降低,并且减少通过旁路通道的气流,以防止边缘腔的温度降低。 温度响应阀装置利用基于温度来调节气流的双金属阀构件。

    Apparatus and process for rotor creep monitoring
    2.
    发明授权
    Apparatus and process for rotor creep monitoring 有权
    用于转子蠕变监测的装置和方法

    公开(公告)号:US08770913B1

    公开(公告)日:2014-07-08

    申请号:US12817440

    申请日:2010-06-17

    IPC分类号: F04D27/02

    摘要: An apparatus and a process for measuring rotor creep values for a monolithic rotor of an industrial gas turbine engine in order to determine when creep growth of the rotor has exceeded an allowable limit. One or more critical locations of the rotor are measured for real-time radius, and a CPU having rotor creep deflection model is used to compare the real-time data and determine if the rotor creep is within safe and allowable limits. If the creep is determined to exceed allowable values, then an alarm in initiated or engine shutdown occurs.

    摘要翻译: 用于测量工业燃气涡轮发动机的单片转子的转子蠕变值的装置和方法,以便确定转子的蠕变生长是否已经超过允许极限。 测量转子的一个或多个关键位置用于实时半径,并且使用具有转子蠕变偏转模型的CPU来比较实时数据并确定转子蠕变是否在安全和允许的极限内。 如果蠕变确定超过允许值,则发生启动或发动机关闭时发生报警。