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    • 6. 发明授权
    • Valve actuator
    • 阀门执行器
    • US5577532A
    • 1996-11-26
    • US273406
    • 1994-07-11
    • Thomas W. Palmer
    • Thomas W. Palmer
    • F15B20/00F16K31/12F16K17/20F16K31/124
    • F15B20/00F16K31/12Y10T137/1987Y10T137/7724Y10T137/7727
    • An actuator has been developed for actuating a valve for controlling fluid flow in a conduit, the actuator having, in one aspect a housing with a main interior housing space, a rod with a mid-portion, a top end and a bottom end, the mid-portion movably disposed in the housing, the bottom end movably extending from the housing and interconnected with the valve, a first piston member secured to the rod and movable in the housing as the rod moves, a second piston member movably disposed in the housing above the first piston member, the second piston member movable to contact the first piston member, first power apparatus for moving the rod to open or close the valve, and second power apparatus for moving the second piston member to contact the first piston member moving the first piston member and the rod to close the valve. In one aspect the rod has a stop shoulder above the first piston member, and the second piston member is movable to contact the stop shoulder to move the rod. Valve systems have been developed which include a valve and such an actuator. Such actuators and systems may employ various structures, housings, and seals and various noted power supplies so that during operation no fluid from within the valve, the actuator, the system, or a flow conduit whose fluid flow is controlled by the valve escapes to the environment.
    • 已经开发了用于致动用于控制管道中的流体流动的阀的致动器,在一个方面,致动器具有主内部容纳空间的壳体,具有中间部分的杆,顶端和底端, 中间部分可移动地设置在壳体中,底端可移动地从壳体延伸并与阀互连;第一活塞构件,当杆移动时固定到杆上并可在壳体中移动;第二活塞构件,可移动地设置在壳体中 在第一活塞构件的上方,能够与第一活塞构件接触的第二活塞构件,用于使杆移动以打开或关闭阀的第一动力装置,以及用于使第二活塞构件移动以接触使第一活塞构件移动的第二活塞构件的第二动力装置 第一活塞构件和杆关闭阀。 在一个方面,杆在第一活塞构件上方具有止动肩部,并且第二活塞构件可移动以接触止动肩部以移动杆。 已经开发了包括阀门和这种致动器的阀门系统。 这样的致动器和系统可以采用各种结构,壳体和密封件以及各种注意的电源,使得在操作期间,流体流动被阀控制的阀,致动器,系统或流动管道内的流体不会泄漏到 环境。
    • 8. 发明授权
    • Valve actuator
    • 阀门执行器
    • US5855226A
    • 1999-01-05
    • US643059
    • 1996-05-02
    • Thomas W. Palmer
    • Thomas W. Palmer
    • F15B9/10F15B13/00F15B13/08F16K31/14
    • F15B13/0871F15B13/0835F15B13/0892F15B9/10Y10T137/87193Y10T137/87225
    • A selector valve system has been invented for selectively operating a motor for selectively actuating a main line valve on a pipeline, gas flowing through the pipeline, the system having, in one aspect, a body, a first poppet valve mounted on a first channel through the body, a second poppet valve mounted in a second channel through the body, a first limit valve for controlling flow of a portion of the gas to the first poppet valve so that upon such gas flowing to the first poppet valve the first poppet valve is actuated to permit gas flow to the motor to open the main line valve, and a second limit valve for controlling flow of a portion of the gas to the second poppet valve so that upon such gas flowing to the second poppet valve the second poppet valve is actuated to permit gas flow to the motor to close the main line valve. In one aspect the poppet valves are O-ring-saving cartridge valves.
    • 已经发明了一种选择阀系统,用于选择性地操作电动机,以选择性地致动管道上的主线阀,流过管道的气体,该系统在一个方面具有主体,第一提升阀安装在第一通道上 主体,安装在通过主体的第二通道中的第二提升阀,第一限位阀,用于控制一部分气体流向第一提升阀的流动,使得当这些气体流到第一提升​​阀时,第一提升阀是 致动以允许气体流动到电动机以打开主线阀;以及第二限制阀,用于控制气体的一部分流向第二提升阀的流动,使得当这种气体流到第二提升阀时,第二提升阀是 致动以允许气体流动到电动机以关闭主管路阀。 在一个方面,提升阀是O形圈节省插销阀。