SYSTEM FOR THE ELECTRICAL PROPULSION OF LIGHTWEIGHT VEHICLES

摘要

The invention relates to an electrically-driven propulsion machine able to be placed on lightweight-type vehicles and bicycles. The low weight and small volume of said machine enables its easy installation on the bicycle's chassis without affecting the geometrical features and initial weight distribution of this last; the machine is placed on the middle friction of the bicycle while power transfer is effected through the bicycle's crankset (middle friction motor). All the aforementioned advantages are obtained by use of a lightweight high-revs dc electromotor. A multi-stage revs reducer of special design and arrangement is incorporated to said machine for assisting the function of said high-revs motor.