Vortex strake device and method for reducing the aerodynamic drag of ground vehicles
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United States of America Patent
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-
Aug 14, 2007
Grant Date -
Feb 24, 2005
app pub date -
Aug 10, 2004
filing date -
Aug 21, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved method and device for the reduction of aerodynamic drag and for increased fuel economy of ground vehicles by increasing the pressure on the rear surface of the vehicle with a plurality of vortices generated along the top and side surfaces of the ground vehicle that flow in to the base wake region of the vehicle. The invention is comprised of a minimum number of small surfaces that attach to the side and top exterior surfaces of a ground vehicle. The spacing and orientation of the small surfaces, comprising the device, are dependent upon the vehicle geometry and vehicle operating conditions. The plurality of small surfaces are located forward of the vehicle base area. The plurality of adjacent small surfaces and are distributed circumferentially over the side and top surfaces of the ground vehicle.
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