Patents issued since 2016
US 9,878,745 - UPPER WHEEL FAIRING REDUCING CRITICAL VEHICLE DRAG
A method and apparatus for shielding critical faster-moving upper wheel surfaces from headwinds reduces vehicle propulsive counterforces needed to countervail mechanically magnified upper wheel drag forces combined with drag forces on the apparatus itself. The apparatus includes various upper wheel fairings of FIGS. 1 – 6. Each fairing shields a critical primary vehicle-drag-inducing upper wheel surface from headwinds otherwise impinging thereon.
US 9,290,041 - STREAMLINED TAILFIN FOR BICYCLE WHEEL SPOKE
A streamlined tailfin rotatably attached to a bicycle wheel spoke reduces drag by swiveling as a wind vane in both headwinds and crosswinds.
US 9,766,153 - MEASURING VEHICLE DRAG IN A WIND TUNNEL
A method and apparatus for measuring the propulsive power required to overcome drag forces on a vehicle mounted within a wind tunnel. The apparatus includes a running belt platform driven by a dynamometer and supporting the vehicle, to be vehicle placed inside a wind tunnel and controlled by a closed-loop servo control system, which maintains the vehicle centered on the running belt under varying operating speeds and headwind conditions. The power dissipated in drag is measured as the power transferred through groundward contact with the wheels of the vehicle.
US 9,567,016 - WHEEL FAIRING DEFLECTING WIND ONTO LOWER WHEEL
A more aerodynamically efficient replacement for truck trailer skirts, shields only the critical upper wheel surfaces from headwinds using a minimally sized deflector panel.
An upper wheel fairing assembly for increasing the propulsive efficiency of a wheeled vehicle having wheels otherwise exposed to headwinds, comprising a deflector panel or skirt panel assembly mounted upstream in front of a rearward wheel set, ideally extending downward to not lower than the level of the axle, and arranged to deflect headwinds from impinging upon the high drag-inducing mechanically advantaged upper wheel surfaces downward onto the low drag-inducing mechanically disadvantaged lower wheel surfaces.
US 9,796,430 - MINIMIZING DRAG-INDUCED FORCES ON A WHEELED VEHICLE
A vehicle exhaust pipe disposed for gases ejected therefrom to divert headwinds from otherwise impinging directly upon critical faster-moving upper wheel surfaces reduces vehicle propulsive counterforces needed to countervail mechanically magnified upper wheel drag forces upon the primary vehicle-drag-inducing upper wheel surfaces.
AU 2103364096 - MINIMIZING DRAG-INDUCED FORCES ON A WHEELED VEHICLE
An aerodynamically optimized drag-reduction means and method for optimal minimization of the drag-induced resistive forces upon a terrestrial vehicle wheel, where the drag-induced resistive moments on wheel surfaces pivoting about the point of ground contact are reduced, and the vehicle propulsive forces needed to countervail the resistive forces on the wheel are reduced. The drag reduction means includes: a streamlined wheel cover (1) positioned on a vehicle (3) to shield the faster moving upper wheel surfaces from headwinds; a streamlined wind-deflecting fairing (14) positioned on a vehicle to shield the faster moving upper wheel surfaces from headwinds; an engine exhaust pipe (34) disposed on a vehicle whereby exhaust gases deflect headwinds to shield the faster moving upper wheel surfaces of an automotive wheel; an automotive spoked wheel having streamlined oval-shaped wheel spokes arranged in one or more rows for greater axial strength; a streamlined tailfin (20) rotatably attached to a wheel spoke (21), which thereby may pivot about the spoke in response to varying crosswinds; and a tire having streamlined tread blocks arranged in an aerodynamic pattern.