Systems, Science and Software

Jeffrey W Kirsch

Edward A Day

Sabodh K Garg

Means for reducing the air drag on bluff vehicles are disclosed which facilitate improved fuel mileage and reduce induced air turbulence adjacent the vehicle. In one embodiment the air drag reducing means employs an airvane member secured in spaced relation to an air flow guide element in kit form for mounting adjacent a corner edge of the bluff surface to prevent separation of air flow from the corner edge and adjacent rearward surface of the vehicle and develop a net forward thrust on the air drag reducing means. Another embodiment includes an airvane member and means for mounting it adjacent a smooth curved windward corner edge of a bluff surface on the vehicle so as to define an air flow passage through which air passes from the bluff surface in attached relation to the corner edge and adjacent rearwardly extending surface of the vehicle.

Air drag reducing means for bluff vehicles and the like

An airvane for use with bluff vehicles and the like to reduce air drag thereon is disclosed wherein the airvane includes a curved portion and a generally planar portion. Such airvanes are mounted adjacent the corner edges of the vehicle, particularly the windward corner edges, and reduce separation of air along the rearwardly extending surfaces of the vehicle in a manner to reduce air drag and buffeting of the vehicle.

Growing community of inventors

La Jolla, CA, United States of America

Jeffrey W Kirsch