GEARBOX Russian patent published in 2009 - IPC B60K17/06 

FIELD: transport.

SUBSTANCE: gearbox includes a planetary reduction gear. First planetary gear set carrier is an output element of the gearbox. Secondary planetary gear set carrier is coupled to primary crown wheel. Primary sun wheel is coupled to secondary crown wheel. Secondary sun wheel is coupled to third sun wheel and fitted with friction brake coupled to the gearbox case. Input element is coupled to third planetary gear set carrier and fitted with friction coupling for connection with secondary planetary gear set carrier. Third crown wheel is coupled by the friction brake to the gearbox case. Primary crown wheel is coupled by the friction brake to the gearbox case. Primary sun wheel is coupled through gear coupling to the gearbox case. Input element fitted with friction coupling for coupling with primary sun wheel and is coupled with torsional vibration damper.

EFFECT: heat load reduction and increased system reliability.

1 dwg