Control valve arrangement consisting of two control blocks for several hydraulic drives, in particular of mobile machines

摘要

To control the pressure-medium paths of two pressure-medium sources to several hydraulic drives, control valves are provided which have a third operating position for the pressureless circulation of the pressure medium and the circulation passages of which are connected to a non-return valve and a directional control valve. The third operating position serves to connect both pressure-medium sources in parallel to one drive when required. By the housing element which accommodates the directional control valve and the non-return valve being fitted between two control valves, a space-saving type of construction is obtained in which additional lines are dispensed with. <IMAGE>