Control device for hydraulic cylinders

摘要

Control device for a hydraulic cylinder, which makes it possible to adjust the piston in the cylinder at high speed without the requirement for a costly variable displacement pump. The control device has an automatic control valve with a spring, a valve spool preloaded by the spring, and a piston for adjusting the valve spool. The hydraulic cylinder is connected to a hydraulic pump via the automatic control valve and a directional control valve (Fig. 4). <IMAGE>