| 摘要 |
PURPOSE: A ventilating structure of a Venturi effect tube is provided to naturally discharge bad air inside a vehicle through a guide pipe during the motion of a vehicle, since a Venturi tube duct is attached to the roof of a vehicle. CONSTITUTION: A ventilating structure of a Venturi effect tube comprises a Venturi tube duct. The Venturi tube duct is attached to the roof of the vehicle for interior ventilation. The Venturi tube structure includes an air inlet(1), an air outlet(2), and an inflow pipe. The section of the air inlet and the air outlet is larger than the section of the center of the Venturi tube structure. The inflow pipe is positioned at the center of the Venturi tube structure.
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