US Patent 8366180 Vehicle air deflection system

An air deflection system has a first skirt assembly mounted to a vehicle at a first side of a cargo container thereon. The first skirt assembly has at least one upper panel and at least one lower panel each extending in a front-to-rear direction and having laterally facing air deflecting surfaces. The at least one lower panel is constructed to be more readily bendable than the at least one upper panel. The air deflection system further has a plurality of support braces extending angularly between: a) the underside of a vehicle to which the skirt assembly is operatively mounted; and b) the at least one upper panel to support the skit assembly on an associated vehicle and reinforce the at least one upper panel.