HYDROSTATIC TRANSMISSION WITH VOLUME DIVIDER FOR MULTIDRIVE VEHICLE Russian patent published in 2019 - IPC B60K17/356 F16H39/06 

FIELD: instrument engineering.

SUBSTANCE: invention relates to hydraulic volumetric transmissions. Hydrostatic transmission contains a pumping station consisting of two groups of axial-plunger high-pressure pumps with variable displacement and a make-up pump, safety valves, drain and pressure filters, heat exchanger. Adjustable plunger radial hydraulic motors with built-in direction of rotation regulators are associated with groups of adjustable high-pressure pumps with feed lines, for supplying fluid to the motors, as well as drain hydrolines, for draining fluid from the hydraulic motors. Axial flow divider is installed in each hydraulic circuit of the high pressure pump groups. Each axial flow divider has additionally sections containing electrically controlled pilot valves. Between the drain trunk lines, respectively, hydraulic braking valves with electrically operated are located. Each hydraulic circuit of the reversible plunger radial motor-wheel drive contains a safety valve. Hydraulic accumulators are connected to pressure lines. In the wheel drive mechanisms connected to the hydraulic motors, there are disc parking brakes, locked by springs and opened by pneumatic chambers. Air cavities of the said pneumatic chambers are in communication with the pneumatic two-way pneumatic valve for their communication alternately with a source of compressed air and with the atmosphere.

EFFECT: higher cross-country capacity.

1 cl, 1 dwg