Wind driven generator for vehicles

A wind-driven electricity generating system for a vehicle, said vehicle having a body and a back section and being at least partially electrically-powered by a battery mounted in said vehicle, the system comprising:

• a) an air intake unit having a plurality of inner walls forming airflow channel comprising an air scoop forming an inlet opening, and an air exhaust forming an outlet opening;
• b) turbine, being rotatable perpendicular to the vehicle direction of motion, said turbine positioned in airflow communication with said air outlet opening;
• and
• c) an electric generator operatively coupled with said turbine, wherein said air intake unit is sealingly attached to an external surface of said body of said vehicle;
• wherein said air scoop faces the forward moving direction of said vehicle;
• wherein the airflow channel is positioned in airflow communication with said inlet opening;
• and
• wherein said electric generator is operatively connected to said battery of said vehicle thereby at least partially recharging said battery, said vehicle being in forward motion;
• and
• wherein said airflow channel is disposed only on a roof (60) of the vehicle,
• thereby said airflow channel substantially is not curved, and
• thereby said turbine (120) being positioned in airflow communication with said air outlet opening (114) is disposed substantially adjacent and below the roof, thereby diminishing length of said airflow channel;
• and
• wherein a length of said turbine (120) is larger than a length of said air outlet opening (114), and occupying at least 70% of a width of said vehicle at said turbine location,
• thereby enlarging a cross-sectional area of said airflow channel,
• thereby improving air flow supplied to said turbine.