This concept is a design to eliminate the low pressure area to the rear of a semi traileer van. The purpose is to reduce the drag created when the vehicle is in motion causing a reduction in fuel economy.
The design shows air deflectors on the top and sides of the trailer. The air scoops will deflect the air into the low presssure area at the rear of the van. The deflectors are mounted to an aluminum frame for ease of removal when the rear doors are opened for trail loading and unloading.
The top deflectors are spring loaded to flip back if the trailer exceeds the height limits of some bridges. They are also clear plastic to permit the top trailer leights to be exposed.
The design is light weight and can be produced at a very low cost in relation to the savings in fuel costs.