Rotary decelerating and braking energy recovery system of hydraulic excavator
A technology for braking energy recovery and hydraulic excavators, which is applied to earth movers/shovels, construction, etc., can solve the problem of increased engine load changes of excavators, affecting the operating habits and work efficiency of operators, and reducing engine output. minor issues
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[0019] as attached figure 1As shown, the outlet of the hydraulic pump 17 communicates with the oil inlet port of the multi-way valve 21, the first pilot oil port of the multi-way valve 21 communicates with the second outlet of the pilot oil circuit control handle 14, and the second pilot oil port of the multi-way valve 21 The oil port communicates with the first outlet of the pilot oil circuit control handle 14; the first oil outlet of the multi-way valve 21 communicates with the first inlet of the first hydraulic control reversing valve 9 and the outlet of the first one-way valve 7 respectively, The oil outlet of the first hydraulically controlled reversing valve 9 is connected with the inlet of the rotary motor 11, the second inlet of the first hydraulically controlled reversing valve 9 is connected with the inlet of the first hydraulically controlled reversing valve 5, the first hydraulically controlled unloading valve 3 The inlet of the second one-way valve 1 and the inlet...
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