公开(公告)号：US5038813A

公开(公告)日：1991-08-13

申请号：US526460

申请日：1990-05-21

申请人： David E. Rossow

发明人： David E. Rossow

IPC分类号： F15B11/068

CPC分类号： F15B11/068 ,  F15B2211/30525 ,  F15B2211/40515 ,  F15B2211/40584 ,  F15B2211/41509 ,  F15B2211/428 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/6051 ,  F15B2211/71 ,  Y10T137/2562

摘要： A device is provided for controlling the initial pressurization of a pneumatic system having a pressure supply line with an inlet end and a tail end and at least one pneumatic actuator in the system. The device includes a pneumatic valve having a first and second inlet port and an outlet port. The valve is movable between a first position in which a first fluid passageway connects the first inlet port to the outlet port, and a second position in which a second fluid passageway connects the second inlet port to the outlet port. A user variable orifice is connected in series between the source of pneumatic pressure and the first inlet while the source is fluidly connected directly to the second inlet. Similarly, the outlet from the valve is connected to the inlet end of the pressure supply line of the pneumatic system. A biasing member urges the valve towards its first position while a pneumatic switch switches the valve to its second position whenever the pressure at the tail end of the pressure supply line exceeds a user selected pressure.

摘要翻译： 提供一种用于控制具有具有入口端和尾端的压力供应管线和系统中的至少一个气动致动器的气动系统的初始加压的装置。 该装置包括具有第一和第二入口和出口的气动阀。 所述阀可在其中第一流体通道连接到所述第一入口与所述出口之间的第一位置和第二流体通道将所述第二入口连接到所述出口端的第二位置之间移动。 用户可变节流孔串联连接在气压源和第一入口之间，同时源直接流体地连接到第二入口。 类似地，来自阀的出口连接到气动系统的压力供应管线的入口端。 当压力供应管线的尾端处的压力超过用户选择的压力时，偏压构件将阀门推向其第一位置，而气动开关将阀门切换到其第二位置。