Cargo vehicle with drag reduction

Details Cargo vehicle with drag reduction Cargo vehicle with drag reduction

2008-04-04

2009-12-01

Lyjak, Lori L (Department: 3612)

Land vehicles: bodies and tops

Bodies

With distinct wind deflector

C296S180400

Reexamination Certificate

active

07625034

ABSTRACT:
A semi-trailer or other cargo vehicle enclosure includes a rearward end portion extending between opposite left and right sidewalls. The sidewalls include vertically extending rearward corner portions that define air passageways for directing rearwardly flowing air from alongside the sidewalls toward a region of low pressure behind the rearward end portion of the enclosure. Preferably, the rearward corner portions include vertically extending rearward corner posts and deflector components that are formed to cooperatively define circularly shaped passageways for gradual air-flow redirection, with the sidewall exterior surfaces and the deflector exterior surfaces being within prescribed maximum semi-trailer widths while the interior corner post spacing does not reduce the usual width of semi-trailer cargo space. Bi-folding doors open to wide-open positions that clear the deflectors.

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