multiple component improved vehicle fuel economy system

摘要

an improved multi-component vehicle fuel economy system a semi-trailer comprising a main frame having a hitch, an axle assembly connected to the main frame, including the axle assembly at least two rotating wheels relative to the main frame , a fairing connected to the underside of the intermediate coupling half-trailer and the mounting axle, the fairing including a pair of side surfaces, a bottom surface spaced from the underside of the semi-trailer, and a front surface, wherein the front surface includes an inlet opening, and wherein at least one of the bottom surface or side surfaces includes an outlet opening, and a flow path fluidly connecting the inlet opening and the outlet opening.