REGENERATIVE HYDRAULIC DRIVE OF FORESTRY UNIT Russian patent published in 2012 - IPC A01B63/10 

FIELD: agriculture.

SUBSTANCE: invention relates to forest engineering. The hydraulic drive comprises a hydraulic cylinder of safety mechanism of working bodies of a tillage tool, drainage and discharge hydraulic manifolds, hydraulic shock absorbers of suspension system and a hydraulic accumulator, hydraulic distribution valve, a pump and a hydraulic tank. The hydraulic drive comprises a differential hydraulic cylinder of the suspension mechanism of the tractor. Differential hydraulic cylinder of the suspension mechanism of the tractor is connected via one check valve to the discharge hydraulic manifold communicated with a hydraulic accumulator, and via the other check valve - to the drainage hydraulic manifold, via the four-position distributor - to the discharge hydraulic manifold communicated with the hydraulic accumulator, and through the filter and the check valve - to the hydraulic tank.

EFFECT: constructive implementation enables to improve the operational reliability of the forestry unit at reducing fuel consumption.

1 dwg