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1. 发明授权

US4722507A Piston sealing ring apparatus 失效
标题翻译：活塞密封圈装置
公开(公告)号：US4722507A
公开(公告)日：1988-02-02
申请号：US908443
申请日：1986-09-17
申请人： Rudolf Lindackers , Willy V. D. Weydt
发明人： Rudolf Lindackers , Willy V. D. Weydt
IPC分类号： F16K31/363 , F16J9/10 , F16J15/16 , F16J15/18 , F16J15/56 , F16K41/02 , F16K41/08 , F16K31/44 , F16J1/06
CPC分类号： F16J15/164 , F16J15/186 , F16J15/56 , Y10T137/86734 , Y10T137/86799 , Y10T137/86807
摘要： A sealing ring device is provided for a fluid valve having a piston (2) reciprocating within a cylinder (1), wherein the piston (2) includes a valve cone (2c) adapted to contact a valve seat (11). In order to seal the inner space of the cylinder (1) located behind the piston (2) from an inlet/outlet passageway (A), a resilient sealing ring (5) is disposed in an annular groove (4) opening into the cylinder (1) around the rear end (2a) of the piston (2). A press ring (7), which extends above the rear end (2a) of the piston (2), contains the sealing ring (5) in the annular groove (4). A spring element (8) rests on the press ring (7). A piston rod (3) is guided in slidable manner through the piston (2). A stop (9) is attached to the rod (3) above the rear end (2a) and opposite the top side of the spring element (8). Downward movement of the rod (3) past the end position of piston (2) causes the stop (9) to compress the spring element (8), and the resulting force is transferred by the press ring (7) to the sealing ring (5) to expand the sealing ring (5) against the piston (2) and the cylinder (1).
摘要翻译：为具有在气缸（1）内往复运动的活塞（2）的流体阀提供密封环装置，其中活塞（2）包括适于接触阀座（11）的阀锥（2c）。为了从入口/出口通道（A）密封位于活塞（2）后面的气缸（1）的内部空间，弹性密封环（5）设置在通向气缸的环形槽（4）中（1）围绕活塞（2）的后端（2a）。在活塞（2）的后端（2a）上方延伸的压环（7）在环形槽（4）中包含密封环（5）。弹簧元件（8）位于压环（7）上。活塞杆（3）以可滑动的方式被引导通过活塞（2）。止动件（9）在后端（2a）的上方与弹簧元件（8）的上侧相对地安装在杆（3）上。杆（3）向下移动超过活塞（2）的端部位置使得止动件（9）压缩弹簧元件（8），并且所产生的力被压环（7）传递到密封环 5）将密封环（5）膨胀到活塞（2）和气缸（1）上。

2. 发明授权

US4505188A Pneumatic actuator 失效
标题翻译：气动执行器
公开(公告)号：US4505188A
公开(公告)日：1985-03-19
申请号：US504964
申请日：1983-06-16
申请人： Willy V. D. Weydt , Ulrich Hannen , Herbert Paetzel
发明人： Willy V. D. Weydt , Ulrich Hannen , Herbert Paetzel
IPC分类号： F15B15/10 , F16K31/126 , F01B19/02 , F16F1/06
CPC分类号： F15B15/10
摘要： A pneumatic positioner with a casing composed of a shell-like bottom part and a shell-like cover part. A membrane plate, is connected through a gas-tight membrane with the side walls of the casing so as to be movable back and forth in the casing in the direction of a drive spindle which is disposed in sealing relationship through the bottom part of the casing. In the bottom part and/or in the cover part, there are arranged one or more gas-conducting connecting pieces. In the casing there are arranged coil springs for producing biasing or restoring forces. These springs abut, on the one hand, the membrane plate and, on the other hand, the bottom part or cover part. On the membrane plate of one embodiment there is provided for each coil spring at least two supporting surfaces which present different spacings from a plane perpendicular to the direction of motion of the drive spindle and upon which the coil springs are replaceably disposed. In this manner it is possible to vary the restoring forces, without its being necessary to change either the number of coil springs or the spring constant of the coil springs then in use.
摘要翻译：一种气动定位器，其具有由壳状底部和壳状盖部构成的壳体。膜片通过气密膜与壳体的侧壁连接，以便能够沿壳体沿壳体的底部的密封关系设置的驱动心轴的方向前后移动。在底部和/或盖部中布置有一个或多个气体导电连接件。在壳体中设置有用于产生偏置或恢复力的螺旋弹簧。这些弹簧一方面与隔板相接触，另一方面与底部或盖部相接。在一个实施例的膜板上，为每个螺旋弹簧提供至少两个支撑表面，其与垂直于驱动主轴的运动方向的平面呈现不同的间隔，螺旋弹簧可更换地布置在该平面上。以这种方式，可以改变恢复力，而不需要改变线圈弹簧的数量或螺旋弹簧的弹簧常数然后在使用中。

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