Drag reducer for land vehicles

Details Drag reducer for land vehicles Drag reducer for land vehicles

1974-10-17

1976-07-27

Goodman, Philip

Land vehicles: bodies and tops

Bodies

Accessories

296 91, 105 2R, B62D 3500

Patent

active

039715868

ABSTRACT:
A drag reducer for a gap in a land vehicle moving through air capable of stabilizing the stagnant air in the gap which tends to rotate and form a horseshoe shaped vortex. The vortex directs the surrounding airstream around the stable vortex and thereby reduces air resistance. The drag reducer is a substantially V-shaped plate having concave sides vertically mounted midway in the gap existing between a tractor and trailer on the forward panel of the trailer. The plate stabilizes the rotating vortices and, particularly, prevents side winds from forcing the vortices out of the gap. The drag reducer can take the form of two plates mounted in parallel on one wall or can be mounted on opposite walls substantially in the same plane. The drag reducer can also take the form of an opened ended conduit that has one end located at the base of the rotating vortex and the other end either in the slip stream or connected to vacuum apparatus so that stagnant air can be sucked out of the middle of the vortex and thereby stabilize the vortex.

REFERENCES:
patent: 2243906 (1941-06-01), Huet
patent: 2569983 (1951-10-01), Favre
patent: D167676 (1952-09-01), Chicorel

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