HYDRAULIC SYSTEM OF ENGINEERING MACHINE Russian patent published in 2019 - IPC F41H7/02 

FIELD: vehicles.

SUBSTANCE: hydraulic system is intended for armored repair and evacuation engineering machine. Safety hoisting device is connected to main traction winch circuit. Hydraulic motor is electrically controlled. Hydraulic pumps of main and auxiliary winches are electrically controlled and connected with said circuits via check valves. Hydraulic system includes pump station with electric drive, both circuits are equipped with own additional hydraulic circuits, hydraulic system of excavator equipment is included in hydraulic system. Hydraulic system is equipped with additional circuit of hydraulic tool and additional contour of swinging of bulldozer.

EFFECT: higher efficiency of hydraulic circuit of auxiliary winch at low speeds, increased range of speed and torque control of traction winch, expansion of functional capabilities of engineering machine, provision of emergency winding of winches in case of failure of hydraulic pumps, power take-off drive or engine of machine.

1 cl, 4 dwg