ELECTRIC SIGNAL INPUT-TYPE CAPACITY CONTROL DEVICE AND HYDRAULIC FACILITY

摘要

[Object] To provide an electrical signal input type displacement control device capable of reducing pipes to be disposed on a hydraulic equipment, and a hydraulic equipment including the same.;[Means for Achieving the Object] The pump equipment 20 includes two the pump units 22 and 23. Electrical regulators 81 and 82 are disposed for the pump units 22 and 23. In each of the electrical regulators 81 and 82, a solenoid proportional valve 86 changes a supply status of driving oil, having been supplied to an input port thereof, with respect to a pilot piston 85. The pilot piston 85 activates a servo switching valve in accordance with a supply status of the supplied driving oil, and controls a supply status of mechanism driving oil supplied to a servo mechanism. Servo mechanisms 25 and 26 change the capacities of the pump units 22 and 23 in accordance with the supply status of the supplied mechanism driving oil. In the electrical regulators 80 and 81, a driving oil passage 110 for connecting the input port to an inter-pump passage extending between the pump units 22 and 23 is formed.