公开(公告)号：US4422470A

公开(公告)日：1983-12-27

申请号：US394381

申请日：1982-07-01

申请人： Alan D. Jackson ,  Dennis J. Stucky

发明人： Alan D. Jackson ,  Dennis J. Stucky

IPC分类号： F16K39/04 ,  F16K17/34

CPC分类号： F16K39/04 ,  Y10T137/7754 ,  Y10T137/7755 ,  Y10T137/7788

摘要： The invention is an improved pressure compensating flow limiting valve which maintains an optimum performance curve at differing flow rates. The invention is the specific placing of a vent passage in the valve spool immediately downstream of the fluid jet passing across the spool in a metering mode with the vent passage connected to one of the servo chambers which positions the spool. The effect of the exiting fluid jet draws some fluid from the vent passage thereby dropping the pressure level in that servo chamber sufficiently to offset certain dynamic forces on the spool and balance the spring forces on the spool with these forces regardless of the flow rate through the valve.

摘要翻译： 本发明是一种改进的压力补偿限流阀，其在不同流速下保持最佳性能曲线。 本发明是在通过连接到定位卷轴的伺服室中的一个的排气通道连接到通过卷轴的流体射流的紧密下游的阀芯中的通气通道的具体放置。 离开的流体射流的影响从通气通道中吸取一些流体，从而足以使伺服室中的压力水平下降，以抵消阀芯上的某些动态力，并通过这些力平衡阀芯上的弹簧力，而不管流经 阀。

公开(公告)号：US4723476A

公开(公告)日：1988-02-09

申请号：US350679

申请日：1982-02-22

申请人： Dennis J. Stucky

发明人： Dennis J. Stucky

IPC分类号： F15B11/024 ,  F15B13/02 ,  F15B13/042

CPC分类号： F15B13/021 ,  F15B11/024 ,  F15B2011/0243

摘要： A regenerative valve which includes a valve body having a bore therein intersected by first and second control passages connected respectively to a four-way directional control valve; the bore is also intersected by first and second cylinder control cavities connecting with the head end and rod end respectively of a double-acting cylinder; a check valve poppet is seated in said bore blocking flow to the head chamber of the cylinder. A shuttle spool is also positioned in said bore and is movable between a first working position allowing the cylinder to retract its piston and a regeneration position opening flow across the first and second cylinder control cavities while blocking flow to the second control passage. The shuttle spool engages the poppet member in its regeneration position causing the poppet to open a flow path from the first control passage to the first cylinder control cavity and thereby allow regeneration flow.

摘要翻译： 一种再生阀，其包括阀体，阀体具有与分别连接到四通方向控制阀的第一和第二控制通道相交的孔; 孔也与分别与双作用气缸的头端和杆端连接的第一和第二气缸控制腔相交; 止回阀提升阀位于所述孔中，阻塞流到气缸的头部腔室。 梭芯也位于所述孔中，并且可以在允许气缸缩回其活塞的第一工作位置和跨过第一和第二气缸控制腔的再生位置打开流动之间移动，同时阻止流向第二控制通道。 梭阀在其再生位置处接合提升阀构件，从而使提升阀打开从第一控制通道到第一气缸控制腔的流动路径，从而允许再生流动。