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卡特彼勒中型液压挖掘机的泵调节中都使用动力切换压力(简称为Ps压力),柴油机和泵控制器通过调节到Ps控制阀的电流以调节泵调节器的Ps压力,从而控制泵的输出流量,实现柴油机和泵的功率匹配。一、工作原理卡特彼勒320C型挖掘机配用3066T型柴油机,带动3个液压泵,即先导泵、左泵和右泵。左、右泵旋转方向相反,都有一个工作原理相同的调节器,可根据输送到调节器的压力以调节泵的斜盘角度,改变泵的排量和输出流量。输送到调节器的压
Caterpillar Medium Hydraulic Excavators use power switching pressure (referred to simply as Ps pressure) in their pump adjustments, and the diesel and pump controls regulate the pump's Ps pressure by adjusting the current to the Ps control valve Flow, to achieve diesel and pump power matching. First, the working principle Caterpillar 320C excavator equipped with 3066T diesel engine, driven by three hydraulic pumps, the pilot pump, left pump and right pump. Left and right pumps rotate in the opposite direction and have a regulator that works the same, adjusting the pump swashplate angle based on the pressure delivered to the regulator to change the pump displacement and output flow. The pressure delivered to the regulator