在多执行机构的电控液压系统中,常常采用并联液控系统。并联液控系统中的34D型电磁阀不宜采用具有H、M、K,X等型的泄荷机能,否则,各执行机构须同时工作方能在液压系统中建立起驱动执行机构的最低压力。采用O型机能的34D电磁阀,若不在主油路并联一只22D泄荷电磁阀,则是一种耗电能的液控系统(参看图1),其状况表现 In multi-actuator electronic control hydraulic system, often using parallel hydraulic control system. 34D solenoid valve in parallel liquid control system should not be used with the H, M, K, X and other types of discharge capacity, otherwise, the implementing agencies must work simultaneously in the hydraulic system to establish the minimum pressure to drive the implementing agencies. The 34D Solenoid Valve with O-type function, if not in parallel with the main oil path 22D discharge solenoid valve, is a power-consuming liquid control system (see Figure 1), the performance of