Ventilation system for motor vehicles

Claim 1

A ventilation system in a motor vehicle having a body including a trunk lid, comprising: (a) means defining a ventilating hole in the trunk lid of the motor vehicle for venting an interior of said body to atmosphere; (b) an aerodynamic device mounted as a rear air spoiler on the trunk lid and disposed at said ventilating hole, said aerodynamic device having a lower surface held against an outer surface of said body, a substantially horizontal front surface for forming a negative angle of elevation with respect to an air current flowing along said body while the automobile is running, and a rear surface for separating the air current off said body, said front and rear surfaces being joined to each other at an acute angle along a rear edge of said rear air spoiler, said rear surface being inclined upward and rearward with respect to the vertical, said aerodynamic device having a vent hole extending therethrough from said lower surface to said rear surface in communication with said ventilating hole, said vent hole having an outlet opening at said rear surface and spaced from said rear edge; (c) a forced-ventilation device disposed in said vent hole and comprising a motor and a fan connected therewith; (d) a solar cell assembly mounted on said front surface and electrically connected to said motor; and (e) a grille assembly mounted in said vent hole adjacent to said outlet for preventing water from entering said vent hole.