TOOTHED REVERSING VARIATOR Russian patent published in 2015 - IPC F16H3/42 

FIELD: machine building.

SUBSTANCE: toothed preversing variator contains two geared shafts (2, 15) in form of cone multiple-thread equidirectional screws arranged with axis parallel to each other and with tops looking to opposite sides. Torque from the drive geared shaft (2) to the driven one (15) is transmitted by the intermediate pinion (14) by means of the helical pair in form of hub (12) on which the intermediate pinion (14) and screw (16) are installed. The helical pair is driven by the worm geared motor via the coupling. The movement of the intermediate pinion along the screw is limited by end position sensors (11, 17).

EFFECT: operation mode of the toothed reversing variator corresponding to movement of the vehicle in forward, back directions or at parking with run engine is changed by the appropriate combination of the drive gears of the drive geared shaft.

2 dwg