FRONT WHEEL DRIVE OF TWO-THREE WHEEL VEHICLE Russian patent published in 2015 - IPC B62M17/00 

FIELD: transport.

SUBSTANCE: front wheel drive comprises frame, cardan mechanism composed of two cardan joints, shaft and moving spline joint, wheel chain gearing to couple cardan mechanism via gearing chain with front wheel controlled via front wheel steering yoke. Front wheel drive incorporates another chain gearing to couple engine output shaft with cardan mechanism. Steering yoke is provided with guide bushes equipped with internal thread while steering yoke pivot has the arm with bearing assembly and is rigidly coupled with vehicle frame. Arm bearing assembly and steering yoke guide bushes make a common swivelling axis in horizontal plane. Cardan mechanism has two cardan shafts one being provided with cardan yoke rigidly fitted thereon and another one being equipped with hinged engaged with cardan mechanism via sliding spline joint.

EFFECT: higher reliability of torque transmission to front wheel, compensated drive length at turn of the front wheel.

2 dwg