Patent ID: 6779834
Filing Date: 2004-08-24
Classification: B62D

Abstract:
A drag reduction channeled apparatus attached to an upper surface of a rear portion of a roadway vehicle to collect smooth air from above the roadway vehicle and forcibly channeled into a low pressure void behind said roadway vehicle during travel, each said drag reduction channeled apparatus comprising:a tapered intake manifold attached to said upper surface of said rear portion of said roadway vehicle, said intake manifold having an enlarged intake portion and a reduced transfer end; an elbow having an intake end adapted to fit within the reduced transfer end of the intake manifold, a bent portion and an output end; a downdraft duct having a receiving end connecting to the output end of the elbow, a flow portion including a draft vent opening to provide flow enhancement to the downdraft duct, and a terminal end having a ramped exhaust port including an internal deflector ramp to direct air flowing through the downdraft duct outward in a horizontal plane, the terminal end having a removable dispersion screen; and a connector brace connecting and covering the receiving end of the downdraft duct and the output end of the elbow, the connector brace and the downdraft duct attaching to a rear panel of the roadway vehicle.