Active control system for gas turbine blade tip clearance
    3.
    发明授权
    Active control system for gas turbine blade tip clearance 有权
    燃气轮机叶片间隙主动控制系统

    公开(公告)号:US06401460B1

    公开(公告)日:2002-06-11

    申请号:US09642464

    申请日:2000-08-18

    申请人: John Xia

    发明人: John Xia

    IPC分类号: F02C712

    CPC分类号: F01D11/24

    摘要: A method of actively controlling the clearance between the rotating components and the stationary components of a combustion gas turbine engine includes employing an active control system that controls the temperature of bleed air that is delivered to the stationary and rotating components to control the thermal growth thereof and to avoid a pinch point. The active control system includes one or more sensors and controls the operation of heat sources interposed within the air passages that deliver bleed air to the stationary and rotating components. The heat sources supply heat to the bleed air at specified rates responsive to a correction signal to control the thermal growth of the stationary and rotating components and to control the blade tip

    摘要翻译: 主动控制燃烧燃气涡轮发动机的旋转部件和固定部件之间的间隙的方法包括采用主动控制系统,其控制输送到固定和旋转部件的排出空气的温度以控制其热生长, 避免夹点。 主动控制系统包括一个或多个传感器,并且控制插入到空气通道内的热源的操作,其将放气输送到固定和旋转部件。 热源响应于校正信号以规定的速率向出气提供热量,以控制固定和旋转部件的热生长并且控制叶片尖端