HYDROSTATIC-MECHANICAL TRANSMISSION OF HEAVY-DUTY VEHICLE Russian patent published in 2017 - IPC F16H47/04 

FIELD: transportation.

SUBSTANCE: hydrostatic-mechanical transmission includes one adjustable reversible axial piston pump with a swash plate, pressure lines, axial piston hydraulic motors to drive the front and rear wheels, a hydraulic drain line, output planetary gear sets, consisting of hydraulic motor sun gears connected to the output shafts, carrier-mounted satellites, epicyclic gears, propeller shafts, cross-axle differentials, axle shaft. Axial-piston hydraulic motors for front and rear wheels driving are adjustable by disc tilting. Transmission is additionally provided with a controlled clutch that connects the internal combustion engine to the hydraulic pump, hydraulic control valve, safety valves, hydraulic drain lines, hydraulic tank, vehicle electronic control unit, signaling cables, clutches and brakes, installed in the output planetary gears.

EFFECT: hydraulic transmission weight and size reduction, reduced wear of the internal combustion engine.

2 dwg