另一个液压泵的吸收扭矩在纯液压结构中被高精度地检测并被反馈到一个液压泵侧，从而以良好的精度执行总体扭矩控制并且可以有效地使用原动机的额定输出扭矩。 为了简单起见，主泵202的输出转矩和负载传感驱动压力可以相同，并且主泵202的转矩反馈校正主泵202的排出压力以模拟主泵202的吸收转矩 电路112v和itoque反馈回路的输出转矩减小，并且主泵102的排出流量随着输出压力变高而降低，从而减小最大转矩T12max， 提供了用于控制流量的扭矩反馈活塞112f。 转矩反馈回路112v具有第一可变减压阀112g和第二可变减压阀112q。

Detected by the net hydraulic configuration the absorption torque of the hydraulic pump of the other with good precision and by feeding the oil pressure of one pump side, the whole torque control is performed with high precision, and to take advantage of the nominal output torque of the prime mover is valid. For this purpose, the discharge pressure and the load sensing drive pressure of the main pump (202) is guided, a torque by correcting the discharge pressure of the main pump (202) output such that a characteristic simulating the absorption torque of the main pump 202 a feedback circuit (112v), and the torque feedback, the output voltage is induced in the circuit, the output voltage is higher the main pump 102 to reduce the discharge flow rate of the main pump 102 to decrease the maximum torque (T12max) according to install the torque feedback piston (112f) for controlling the discharge flow rate. Torque feedback circuit (112v) has a first and second variable pressure reducing valve (112g, 112q).