VEHICLE Russian patent published in 2007 - IPC B60K17/14 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to production of tractors, motor graders, trucks and passenger cars and grain harvesters. Proposed vehicle contains multiple-row planetary reduction gear with hydraulic machine (hydraulic motor) and "move-off-engagement" friction clutch connecting carrier of one of rows with driven shaft, and driving wheel. Vehicle includes also hydraulic system with pumps and hydraulic distributors, hydraulically driven drive axle, brake system with drums and brake disks and gearboxes. Multiple-row planetary reduction gear is furnished additionally with "engagement" friction clutches connecting, together with "move-off-engagement" friction clutch, depending on load, successively either carrier of one of rows or directly hydraulic machine with driven shaft. Power members of friction clutches are arranged in driven member of friction clutch with control medium supplied through driven shaft. Power members are arranged in housing of multiple-row planetary reduction gear or in housing of hydraulically driven drive axle with possibility of action onto driving and driven members (friction disks) of friction clutches through thrust bearings.

EFFECT: provision of change of gear ratio in hydraulic driven drive axle: hydraulic motor-multiple-row planetary reduction gear-driving wheel.

5 cl, 15 dwg