RECUPERATIVE HYDRAULIC DRIVE OF A FORESTRY VEHICLE WITH A TRAILER Russian patent published in 2020 - IPC B60T1/10 F15B21/14 

FIELD: machine building.

SUBSTANCE: invention relates to the machine building. Recuperative hydraulic drive of a forest vehicle with a trailer comprises recuperative mechanisms of jib, handles, support-rotary device, wheels, suspensions, towing-coupling device, hydraulic distributors, reduction valves, hydraulic pump, hydraulic tank, filter, unloading automatic valve, pneumohydraulic accumulator, suction, drain and pressure hydraulic lines, hydraulic cylinders of outriggers. Support-turning device of the hydraulic manipulator is equipped with spring-loaded pressure multipliers kinematically connected to plungers of the high-pressure hydraulic cylinders. Wheel gear is equipped with reversible reciprocal hydraulic motors, automatically controlled hydraulic control valves. Suspension mechanism is equipped with hydraulic cylinders, check valves, throttles. Hitch-drawbar mechanism is equipped with hydraulic cylinder, rod and non-rod cavities of which by means of in-series connected throttle and two check valves are separately connected to suction and pressure hydraulic lines. Non-rod and rod cavities of hydraulic cylinders of outriggers are connected to hydraulic lines by means of hydraulic control valves, non-rod-type chambers – to pressure hydraulic line, and rod – to suction.

EFFECT: reduced consumption of diesel fuel by forest vehicle with a trailer.

1 cl, 2 dwg