SYSTEM DISCHARGE VALVE FOR HYDRAULIC SYSTEM OF GEARBOX OF TRACKLESS VEHICLE WITH ENGINE Russian patent published in 2023 - IPC F16H61/02 F16H61/00 

FIELD: car industry.

SUBSTANCE: invention relates to a system discharge valve for a hydraulic system of a gearbox of a trackless vehicle with an engine. The system discharge valve contains: a valve case, a spool rod, the first input, the second input, the first output, the second output, the third output. A primary pump of the hydraulic system is made with the possibility of connection to the first input. A secondary pump of the hydraulic system is made with the possibility of connection to the second input. A primary system discharge circuit of the hydraulic system is made with the possibility of connection to the first output and the second output. A secondary system discharge circuit of the hydraulic system is made with the possibility of connection to the third output. The system discharge valve is intended for movement of the spool rod within the valve case to the first switching position, to the second switching position, and to the third switching position. In the first switching position, the third output is not connected to either the first input or the second input. In the second switching position, the second input is connected to the third output. In the third switching position, the third output is connected to both the first input and the second output.

EFFECT: increase in compactness of a device.

13 cl, 8 dwg