FIELD: transport.
SUBSTANCE: invention relates to boom machine, particularly, to diggers and frontal loaders. This device comprises boom, boom main cylinders, equalizing cylinder, gas cylinder, fluid lines, fluid tank and pump. In compliance with this invention said equalizing cylinder and gas cylinder are integrated. Equalizing cylinder is arranged inside gas cylinder pressurized to over 10 MPa. Equalizing cylinder rod end is communicated via fluid line with fluid pressure control valve drain line. Device gas chamber volume is composed by gas cylinder cylindrical circular chamber V1 and hollow rod and piston volume V2. Note here that chamber volume (V1+V2) exceeds two volumes of working stroke of equalizing cylinder V1+V2 > 2Vw.
EFFECT: power saving owing to ruled out useless power used for lifting working components, higher efficiency.
5 dwg
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