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公开(公告)号：US20110155250A1
公开(公告)日：2011-06-30
申请号：US12648015
申请日：2009-12-28
CPC分类号： F15B9/03 , F16K31/003 , F16K31/122 , F16K31/1262 , Y10T137/0318 , Y10T137/8225 , Y10T137/8242 , Y10T137/8292
摘要： A hydraulic actuating device for a sliding stem control valve assembly is mounted between a control valve and an actuator housing. The hydraulic actuating device is connected to one of a control valve stem, an actuator stem, and a stem connector and the hydraulic actuating device moves either the control valve stem, the actuator stem, or the stem connector in response to varying hydraulic pressure within the hydraulic actuating device. The hydraulic actuating device may be used to override an actuator of the sliding stem valve during emergency operations, or to provide a backup actuator in the case of a primary actuator malfunction.
摘要翻译： 用于滑杆控制阀组件的液压致动装置安装在控制阀和致动器外壳之间。 液压致动装置连接到控制阀杆，致动器杆和杆连接器中的一个，并且液压致动装置响应于内部的变化的液压压力而移动控制阀杆，致动器杆或杆连接器 液压执行装置。 在紧急操作期间，液压致动装置可用于覆盖滑动阀杆的致动器，或者在主致动器故障的情况下提供备用致动器。
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公开(公告)号：US08714515B2
公开(公告)日：2014-05-06
申请号：US12648015
申请日：2009-12-28
IPC分类号： F16K31/122
CPC分类号： F15B9/03 , F16K31/003 , F16K31/122 , F16K31/1262 , Y10T137/0318 , Y10T137/8225 , Y10T137/8242 , Y10T137/8292
摘要： A hydraulic actuating device for a sliding stem control valve assembly is mounted between a control valve and an actuator housing. The hydraulic actuating device is connected to one of a control valve stem, an actuator stem, and a stem connector and the hydraulic actuating device moves either the control valve stem, the actuator stem, or the stem connector in response to varying hydraulic pressure within the hydraulic actuating device. The hydraulic actuating device may be used to override an actuator of the sliding stem valve during emergency operations, or to provide a backup actuator in the case of a primary actuator malfunction.
摘要翻译： 用于滑杆控制阀组件的液压致动装置安装在控制阀和致动器外壳之间。 液压致动装置连接到控制阀杆，致动器杆和杆连接器中的一个，并且液压致动装置响应于内部变化的液压压力而移动控制阀杆，致动器杆或杆连接器 液压执行装置。 在紧急操作期间，液压致动装置可用于覆盖滑动阀杆的致动器，或者在主致动器故障的情况下提供备用致动器。
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