DUMP TRUCK HYDRAULIC DRIVE Russian patent published in 1997 - IPC

FIELD: transport engineering; dump trucks and other mobile vehicles. SUBSTANCE: hydraulic drive of dump truck has platform body lifting single-space hydraulic cylinder controlled by hydraulic distributor, pump with drive from engine through power takeoff case and clutch, pressure transmitter placed in pressure or working hydraulic lines coupled with delivery source cutoff device, tank and return hydraulic line. Hydraulic drive has device to control pump delivery and platform body position pickup, output elements of which are placed in control circuit of working liquid delivery source cutoff device in series with output element of pressure transmitter. EFFECT: enlarged improved reliability of operation. 4 cl, 2 dwg