液压泵(马达)产品出厂前必须进行性能试验,试验压力为其额定压力的1.3倍,试验流量应等于或大于泵的额定流量,试验是在超载条件下进行的,对高压、大流量的泵如果用节流阀或溢流阀作为负载建立系统压力则其消耗功率是十分可观的,可达几十甚至上百千瓦,而这些能量大部分又白白的损失掉,使液压系统发热,油温升高。如能将这部分能量加以回收利用,转化为有用功,则 Hydraulic pump (motor) products must be carried out before the performance test, the test pressure of 1.3 times its rated pressure, the test flow should be equal to or greater than the rated flow of the pump, the test is carried out under overload conditions, the high pressure, high flow pump If the throttle or relief valve as a load to establish system pressure, then the power consumption is considerable, up to dozens or even hundreds of kilowatts, and most of these energy losses in vain, so that the hydraulic system heat, oil temperature Rise. If this part of the energy can be recycled, into useful work, then