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发明公开
CN101649850A 用于控制调节驱动装置的位置调节器的阀装置和方法 无效 - 撤回

用于控制调节驱动装置的位置调节器的阀装置和方法
摘要：
本发明涉及用于控制由位置调节器(1)进行压力介质加载的调节驱动装置(3)的阀装置和方法，该调节驱动装置能由调节驱动装置的工作接头(A)用压力介质加载，该压力介质能通过供压接头(P)输送至位置调节器，设置用于在供给压力失效时闭锁调节驱动装置(3)的机构。用于在供给压力失效时闭锁调节驱动装置(3)的机构包括设置在位置调节器(1)的工作接头(A)的区域内的预控制的闭锁阀(5)，当供给压力下降到确定的第一临界值以下时，该闭锁阀通过一个与位置调节器(1)的供压接头(P)连接的并且由此压力控制的预控制阀结构(6)占据闭锁位置。
摘要（英）：

A valve device and method for the activation of an actuating drive, which can be acted upon with a pressure medium by a position controller. The position controller can be acted upon by a working connection of the actuating drive with a pressure medium which can be delivered to the position controller via a feed pressure connection. The valve device includes means for blocking the actuating drivein the event of a failure of the feed pressure. The blocking means includes a pilot-controlled shut-off valve which is arranged in the region of the working connection of the position controller, anda pilot control valve arrangement connected to the feed pressure connection of the position controller to control pressure of the feed pressure connection and cause the pilot-controlled shut-off valveto assume a shut-off position when the feed pressure falls below a defined first limit value.

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