Excavator control system with oil hybrid power
An oil-liquid mixing and control system technology, applied in the direction of earth mover/shovel, construction, etc., can solve the problems of energy waste, large size of system components, high price, reduce heat generation, simplify system design, and improve recovery efficiency Effect
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[0024] The present invention will be further described below in conjunction with accompanying drawing.
[0025] Such as figure 2 As shown, an oil-hydraulic hybrid excavator control system includes a hydraulic pump 1, an engine 2, a main control valve 3, a boom cylinder 4, a swing motor 5, a swing energy recovery valve 6 and a boom potential energy recovery valve 10, The two oil inlets of the rotary energy recovery valve 6 are respectively connected to the A port and the B port of the rotary motor 5, and the oil outlet of the rotary energy recovery valve 6 is connected to the rotary accumulator 7;
[0026] The oil inlet of the boom potential energy recovery valve 10 is connected with the rodless cavity of the boom cylinder 4, and the oil outlet of the boom potential energy recovery valve 10 is connected with the boom accumulator 8;
[0027] The oil outlets of the slewing accumulator 7 and the boom accumulator 8 are connected with the oil inlet of the energy release control va...
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