Land vehicles: bodies and tops – Bodies – With distinct wind deflector
Patent
1993-08-25
1994-09-20
Cherry, Johnny D.
Land vehicles: bodies and tops
Bodies
With distinct wind deflector
2961805, B60R 2700
Patent
active
053483669
ABSTRACT:
A device for the reduction of aerodynamic drag on land vehicles and more specifically tractor-trailer trucks, Consisting of rectangular plates mounted to the after-end of said truck. The plates are mounted to the truck's structural frame by hinged truss assemblies, normal to the road and parallel to the truck body's rear end. The combined area of the plates is smaller than that of the truck's cross section. While the vehicle is moving, a vortex becomes locked between the plates and truck rear end creating a low pressure region. The suction created changes air flow patterns behind the vehicle such that base drag is reduced. The device is retractable and allows unobstructed loading.
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Baker Myles L.
Levitt David J.
Cherry Johnny D.
Hoge Gary C.
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