Hydraulic control circuit for hydrodynamic signal processing

摘要

A hydraulic control circuit (10) for hydrodynamic signal processing is proposed, which can be used in a hydraulic lifting gear control device with fully hydraulic signal processing in a bridge circuit. An adjustable, hydraulic resistor (12) is designed with a slot-like throttle aperture (21) increasing the lift, and coupled to a piston (22) of a displacement cylinder (24) so that in addition to a change in pressure as a function of the resistance, in the event of a sudden input signal an additional change in pressure is produced as a function of the volume change in the displacement cylinder. Pressure changes in the same direction accumulate in the control connection (18) and lead to an improved dynamic response of an assigned control circuit. <IMAGE>