US 9,809,260 B2
Segmented trailer side skirt fairing
Jeffrey P. Smith, Prosper, TX (US)
Assigned to PACCAR Inc., Bellevue, WA (US)
Filed by Jeffrey P. Smith, Prosper, TX (US)
Filed on Mar. 6, 2013, as Appl. No. 13/787,278.
Prior Publication US 2014/0252799 A1, Sep. 11, 2014
Int. Cl. B62D 35/00 (2006.01)
CPC B62D 35/001 (2013.01) 18 Claims
OG exemplary drawing
 
1. A vehicle trailer having a longitudinal axis, comprising:
a trailer body having a bottom wall;
rear wheel assemblies disposed below the trailer body; and
two or more side skirt fairing segments spaced apart from each other in a longitudinal direction in order to allow air to flow therebetween, the two or more side skirt fairing segments being associated with the trailer body and positioned underneath the bottom wall of the trailer body and forward of the rear wheel assemblies,
wherein each of the two or more side skirt fairing segments includes inner and outer side surfaces, a leading edge, and a trailing edge arranged in the form of an air foil such that the outer side surface and the inner side surface converge at each of the leading edge and the trailing edge, and
wherein each of the two or more side skirt fairing segments is positioned such that the leading edge and the trailing edge extend vertically underneath the bottom wall of the trailer body and such that a chord line from the leading edge to the trailing edge is at an angle of approximately 1-10 degrees with respect to the longitudinal axis of the vehicle trailer.