| 摘要 |
PURPOSE: An oil-hydraulic circuit for an excavator equipped with a hammer device is provided to control of the output flux of a hydraulic pump by sensing the temperature of the hammer device. CONSTITUTION: An oil-hydraulic circuit for an excavator equipped with a hammer device comprises a first hydraulic pump(10), a second hydraulic pump, an oil temperature detector(32), a pump discharge flow rate control valve(40) and a controller(34). The oil temperature detector is located one side of a hydraulic tank(27). The pump discharge flow rate control valve is connected to one side of the first hydraulic pump. |
