CONTROL DEVICE FOR INTERAXLE DIFFERENTIAL WITH THREE PLANETARY GEAR SETS Russian patent published in 2013 - IPC B60K17/346 F16H48/00 

FIELD: transport.

SUBSTANCE: invention relates to control devices for interaxle differential of transfer gear. The device contains gear clutch (27) hydraulically driven by piston (28) installed in three-section working chamber (29). In this chamber together with piston (28), auxiliary piston (30) of lager diameter is located which forms moving rest for piston (28). Working chamber front section located before piston (28) and center section located between pistons (28) and (30) are connected by hydraulic lines with on/off hydraulic control valve (33) for successive communication with working fluid pressure source. The rear section located after piston (30) is connected by hydraulic line with on/off valve (36) to be able to communicate alternatively with front section of working chamber and with drain. Control valve (33 and valve (36) are operated from electric magnets (37), (38) connected to three-position switch (39). The switch (39) in central position connects with electric current source the electric magnet (37) for control valve (33) operation, in one of outer positions connects with electric current source both electric magnets, and in the other outer position disconnects electric magnets from with electric current source.

EFFECT: convenient remote control of interaxle differential with three planetary gear sets.

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