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在比例换向阀上配装三通压力补偿阀和溢流阀,不仅能大大提高比例换向阀的响应频率,使液压系统具有较强的抗负载变化能力,还可降低液压系统在流量调节时的能量损失,使其成为一种节能型比例电磁阀。该节能型比例电磁阀由比例换向阀1、压力补偿阀2、溢流阀3和阀体4组成。压力油经进油口P进入阀体4后,分为3条回路:一条经压力补偿阀2到达阀体4的回油口T,另一条到达比例换向阀1的进油口,第三条油路与阀体4的测压表相连。其中压力补偿阀2的控制油口与比例换向阀1的出油口A连接,比例换向阀1
Proportional directional valve equipped with three-way pressure compensation valve and relief valve, not only can greatly improve the proportional valve response frequency, the hydraulic system has a strong ability to resist load changes, but also reduce the hydraulic system in the flow adjustment When the energy loss, making it an energy-saving proportional solenoid valve. The energy-saving proportional solenoid valve from the proportional valve 1, the pressure compensation valve 2, relief valve 3 and the valve body 4 components. After the pressure oil enters the valve body 4 through the oil inlet P, it is divided into three circuits: one connects to the oil return port T of the valve body 4 via the pressure compensation valve 2 and the other reaches the oil inlet of the proportional valve 1, and the third The oil path is connected to the manometer 4 of the valve body. Wherein the pressure compensation valve 2 and the proportional control valve port 1 proportional valve 1 is connected to the proportional valve 1