Method and apparatus for controlling spray and splash caused by a vehicle while reducing the drag of the vehicle

摘要

An apparatus is provided for minimizing outward lateral spraying and/or splashing of water that is contacted by a moving vehicle (12), such as a tractor/trailer. In one embodiment, the apparatus is a flap-like device (50) having a num­ber of holes (56) formed at predetermined locations in the device. The holes are preferably tapered (58). The devices are typically located behind vehicle wheels. In another embodiment, the apparatus is an imperforate body (70-72) that can be connected to the frame of the vehicle (12) at predetermined locations. The embodi­ments of the invention develop improved streamline flow whereby undesirable vortices of air and/or water are con­trolled and the lateral, outward movement of water is sub­stantially reduced. Additionally, the streamline flow reduces vehicle drag inasmuch as developed vortices located adjacent to the side of the vehicle, and which cause addi­tional drag, are entrapped closer to the vehicle to thereby prevent their spreading out.