Abstract: A vehicle has a motor-gear unit, a trailing wheel of the vehicle being connected the output shaft of the gear and an input shaft of the gear being connected to a motor. The gear has an outer wheel, an inner wheel and a traction means extending between the outer wheel and the inner wheel. A revolving transmitter is also provided which lifts the traction means off the outer periphery of the inner wheel and pushes it against the inner periphery of the outer wheel.

Abstract: A chain gear (1) for gearing an engine torque comprises three gearing stages, wherein the first gearing stage is formed by a first gear rim (6) and a fourth gear rim (9), the second gearing stage is formed by a second gear rim (7) and a fifth (10) gear rim, and the third gearing stage is formed by a third gear rim (8) and a sixth gear rim (11). The first gear rim (6), the second gear rim (7) and the third gear rim (8) are disposed on a first shaft (3), and the fourth gear rim (9), the fifth gear rim (10) and the sixth gear rim (11) are disposed on a second shaft (4). A transmission chain (27, 28, 29) is provided in each gearing stage for transmitting the torque.

Abstract: A vehicle operated by an electric motor (16) comprises an energy generating unit (11, 12, 16) for generating electric energy for the electric motor (16) and an energy storage device (8, 9) for storing electric energy, wherein the energy storage device (8, 9) is connected to the electric motor (16) for supplying the electric motor (16) with electric energy in addition to the energy supplied by the energy generating unit (11, 12, 16). The maximum power which can be provided by the energy generating unit (11, 12, 16) is higher, but by no more then 15%, than an average motor power in the operation of the vehicle.