FACILITY FOR CONTROL OVER MULTITUDE OF HYDRAULIC SWITCHES OF CYLINDERS AND SYSTEM OF HYDRAULIC SYPPLY FOR GEAR BOX WITH DOUBLE CLUTCH Russian patent published in 2010 - IPC F16H63/02 

FIELD: machine building.

SUBSTANCE: invention refers to facility for control over multitude of hydraulic switching cylinders for switching gears of gear box and to hydraulic supplying system for gear box with double clutch. The facility for control over multitude of hydraulic switching cylinders consists of first valve (64) with control input (96), input (94) of pressure of the system, two outputs (100, 102) and one output (98) of drain. Depending on pressure on the control input one output is selectively connected to the system pressure input, while another output is connected to the drain output. The valve device connected to outputs of the valve is made in form of slides (66, 68, 116) and valve (104) by means of which switching cylinders are selectively actuated. The hydraulic supplying system consists of the device for control over multitude of hydraulic switching cylinders and a pressurised with pump (30) main connected to valve (40) of pressure regulation. Valve (40) has a connection for coupling with the main tied with control devices (58, 60, 62) of preliminary controlling pressure and one drain connection tied with drain main (46) by means of cooling line (42) running through radiator (44); also the facility has a bypass main (48) connecting the cooling main with the drain main and valve of limited pressure (50) installed in the bypass main.

EFFECT: facilitating simplification of design.

12 cl, 9 dwg