| 摘要 |
An electric hydraulic type active load simulator is provided to reduce energy waste generated in a hydraulic circuit of a conventional active load simulator since a dual hydraulic pump is operated by an electric motor only when generation of the load is needed. An electric hydraulic type active load simulator includes a load generating unit(40). The load generating unit includes first and second hydraulic discharge lines(55,56), first and second hydraulic suction lines(53,54), and first and second return lines(57,58) arranged between a testing actuator(41) and a fluid tank(52) by the medium of a dual hydraulic pump(50). A direction changing valve(59), a variable diaphragm valve(43), a pilot check valve(44), a relief valve(45) are arranged to control the flow direction, pressure, velocity or the like of hydraulic pressure of each line. |
