DRIVE SYSTEM AND HOISTING Russian patent published in 2014 - IPC B66D1/22 B66D3/20 

FIELD: transport.

SUBSTANCE: plant to be used as draw work comprises motor, second motor, planetary gear engaged with motors and coil connected with transmission and having inner chamber to house motors and transmission. Motors are arranged completely inside said coil. One of motors is rpm-controlled while another one is torque-controlled design. Engine specific power makes over 0.182 hp per pound. In compliance with the other version, engine torque intensity makes over 2000 kilo-pound at volume less than about 30 cubic meters. In compliance with the other version, this plant comprises recuperative braking system connected with the engine and rotary inductor connected with transmission. Said recuperative braking system receives electric power from the motor in response to inductor rotation. Note here that said system accumulates the power in power accumulation system.

EFFECT: higher reliability.

19 cl, 2 dwg