Drag Reducer for Semi-Trailer

A system for reducing drag on an oblong truck, trailer, cargo container, or the like comprising:

• (a) a pair of vertical hollow fluid conduits;
• (b) each of said vertical hollow fluid conduits being affixed to the rear face of an about oblong vehicle along one of its two rear vertical edges;
• (c) said vertical hollow fluid conduits being pierced by a plurality of holes along its length in a direction perpendicular to and outward from the direction of forward motion of said about oblong vehicle;
• (d) said vertical hollow fluid conduits being capped at their upper vertical ends;
• (e) a pair of axial hollow fluid conduits;
• (f) said axial hollow fluid conduits being fixedly attached to the underside of said about oblong vehicle;
• (g) said axial hollow fluid conduits each having an opening near their first ends;
• (h) said openings being oriented in the direction of motion of said oblong vehicle;
• and
• (i) said axial hollow fluid conduits being connected at their second ends in fluid communication with the lower vertical ends of said vertical hollow fluid conduits;
• whereby airflow from the forward motion of said vehicle is forced into said openings and directed through said axial fluid conduits and into said vertical fluid conduits and out of said holes in said vertical fluid conduits in a direction outward from said about oblong vehicle, thereby reducing drag on said about oblong vehicle.