Aerodynamic drag reduction device for a trailer

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The Raimund Pfaff patent solves the following problem:

This invention relates to a flying drag reduction device for a trailer, and especially flying a drag reduction device that positions the underside of the trailer forwardly rear wheel assembly to reduce the air flow impingement behind the wheel assembly.

Our analysis of this patent is as follows:

Raimund Pfaff’s patent US 8322778 B1 deals with Aerodynamic drag reduction device for a trailer.
A drag reduction device for a trailer comprising a generally U-shaped upstanding wall means having a floor and the lower ends. devices and the underside of the trailer so that the back end of the device positioned forwardly beyond the end of the rear wheel assembly of the trailer. In some photos, the device with the slider axle trailer so that the device is moved forwardly and rearwardly slider axle.

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