Hydraulic system for battery-operated electric load conveying vehicle has hydraulic unit acting as pump and motor coupled to electrical unit acting as motor and generator

摘要

The hydraulic system has lifting cylinders for vertical movement of a load reception device, connected in circuit with a hydraulic unit (1), acting as a pump during the lifting movement and as a motor during the lowering movement, coupled to an electrical machine (2), acting as a motor during the lifting movement and as a generator during the lowering movement. The hydraulic line (6) contains a control valve (9) for controlling the lifting drive and a flow regulator (14).