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    • 2. 发明授权
    • Balanced valve with actuator
    • 平衡阀带执行器
    • US06691980B2
    • 2004-02-17
    • US10190207
    • 2002-07-05
    • Todd W. LarsenThomas M. Bydalek
    • Todd W. LarsenThomas M. Bydalek
    • F16K3102
    • F16K31/0655F16K1/00F16K31/046F16K31/1221
    • The valve device includes a valve body and a bonnet with a fitting clamped therebetween and extending within body and bonnet bores. The fitting and valve body have bore portions with a valve stem extended therein and through a valve seat and having opposite end portions of the same diameters and in fluid sealing relationship with the above bore portions axially opposite the valve seat. The body has inlet and outlet passages opening to the fitting and body bores axially opposite the valve seat and axially intermediate the stem end portions. A sensor is connected to the valve stem and is movable against spring action to move the valve stem to its open position. An actuator, for example an electric motor, is mounted to the bonnet and operable for forcing the sensor to move the valve stem to its valve open position.
    • 阀装置包括阀体和阀盖,其配合件夹在其间并在阀体和阀盖孔内延伸。 配件和阀体具有孔部分,其中阀杆在其中延伸并穿过阀座并且具有与阀座轴向相对的相同直径的相对端部和与上述孔部分的流体密封关系。 主体具有入口和出口通道,其通向与阀座轴向相对的配件和主体孔,并且在杆端部分之间轴向地中间。 一个传感器连接到阀杆上,并且可以克服弹簧作用移动,以将阀杆移动到其打开位置。 致动器(例如电动机)安装在发动机罩上并可操作以迫使传感器将阀杆移动到其阀打开位置。