Hydraulic system of industrial vehicle

• Main Authors: FUJIMOTO YUUSUKE, MATSUO MASAHIRO, KODERA HIROYASU, MIKI TAKASHI
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2024
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; DREDGING; FIXED CONSTRUCTIONS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; FOUNDATIONS; HAULING; HEATING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; HYDRAULIC ENGINEERING; HYDRAULICS OR PNEUMATICS IN GENERAL; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIFTING; LIGHTING; MECHANICAL ENGINEERING; MOTOR VEHICLES; PERFORMING OPERATIONS; SOIL SHIFTING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TRAILERS; TRANSPORTING; WEAPONS

A hydraulic system (1) is provided with: a variable displacement steering pump (21) that supplies a hydraulic fluid to a steering actuator (11); a variable capacity type loading/unloading pump (31) for supplying the operating fluid to the at least one loading/unloading actuator (12); a converging line (71) branched from the diverting supply line (22) and connected to the loading/unloading supply line (32); and a priority valve (72) provided in the merging line (71). The hydraulic system (1) is further provided with: a loading/unloading regulator (5) that inputs a loading/unloading request command pressure and that increases the capacity of the loading/unloading pump (31) as the loading/unloading request command pressure increases; and a steering regulator (4) in which the higher one of the steering request command pressure and the loading/unloading request command pressure is input as a signal pressure, and the capacity of the steering pump (21) increases as the signal pressure increases. 液压系统(1)包括：向转向致动器(11)