用于油流和其中的负载无关的流量控制的液压控制装置是基本上具有平衡活塞的输送流至罐（25）的非压力推导（2），其控制在根据所述负载压力的泵（26）和罐（25）之间的连接。 为了这个目的，平衡活塞（2）在一侧（5）与泵压力和在另一侧（8）的负载压力和施加的弹簧力（10）的力的总和。 当关闭泵（26）和罐（25）之间的低损失自由流动的负载压力是由一个事实，即关闭弹簧力的作用的负载压力时被关闭被保证。 为了这个目的，无论是通过在负载压力切换只有当保持活塞（13），其中所述弹簧（10）的支持弹簧（10）使进入它们的工作位置或弹簧力是由作用在平衡活塞保持笔，其在关断的负载压力 Pumperdruck被作用完全地或部分地补偿。

A hydraulic control device for the load-independent flow control of an oil flow and which is substantially pressure-free derivative of a delivery flow to the tank (25) having a balance piston (2) which controls the connection between the pump (26) and tank (25) in dependence on the load pressure. For this purpose, the balance piston (2) on one side (5) with the pump pressure and on the other side (8) with the sum of the forces from the load pressure and a spring force (10) is acted upon. When the load pressure off a low-loss-free flow between the pump (26) and the tank (25) is to be ensured by the fact that, when switching off the load pressure of the influence of the spring force is turned off. For this purpose, either the spring (10) supported by a holding piston (13), which brings the spring (10) only when switching on the load pressure in their operating position or the spring force is a force acting on the balance piston retaining piston, which at switching off the load pressure to the pump pressure is applied, fully or partially compensated.