IMPURE AIR DISCHARGE SYSTEM FOR VEHICLES

摘要

This invention relates to the impure air discharge system to be used in buses and similar public transportation vehicles. Ventilation unit (1) that doesn't require fan usage; discharges the impure air inside the vehicle through the unidirectional natural air flow created by means of the pressure difference between the backside of the body of the ventilation unit (1) and the inside of the vehicle due to the vehicle speed. The body of the ventilation unit (1) has the curvature form that creates the pressure difference required for the discharge of impure air.