Abstract: The invention relates to a system for reducing fuel consumption in vehicles. According to the invention, fuel consumption is reduced by minimizing the aerodynamic resistances generated as the vehicle moves forward. The inventive system conveys air to the rear or stern of the vehicle where a depression is known to form. In a preferred embodiment of the invention, the air is conveyed using a tubular casing which is fixed to the rear part of the vehicle roof and which bends slightly towards the rear end. The air is channeled from the upper part of the forward-moving vehicle and is released at the low-pressure stern area, the depression serving as a suction device which facilitates the passage of the air. The outlet is oriented towards, but does not extend to the top of the rear doors.

Abstract: The invention relates to a system for reducing fuel consumption in vehicles. According to the invention, fuel consumption is reduced by minimizing the aerodynamic resistances generated as the vehicle moves forward. The inventive system consists in conveying air to the rear or stern of the vehicle whereat a depression is known to form. In a preferred embodiment of the invention, said air is conveyed using a tubular casing (9) which is fixed to the rear part of the vehicle roof and which bends slightly towards the rear end. The air is channeled from the upper part of the forward-moving vehicle and is released at the low-pressure stern area, said depression serving as a suction means which facilitates the passage of the air. The outlet (11) is oriented towards, but does not extend to the top of the rear doors.