Patent attributes
A drag reduction device for improving drag efficiency on a land vehicle includes one or more drag reduction devices that are coupled to an exterior portion or contained internally within the vehicle. The drag reduction devices include one or more fan assemblies each contained within a respective housing. The fan assemblies all include, in general, cross-flow fans and air foils that are configured to adjust the movement of air over and around the trailer unit as the land vehicle is being driven along a surface during normal use, and thus provide reduced resistance from air friction and pressure friction and contribute significantly to reduced fuel or other energy consumption as the land vehicle is being driven along a surface during normal use. The fan blades and air foils can be plasma-controlled.