Patent ID: 8851554

Claim:
A combination comprising: a vehicular object having first and second lateral sides and a rear surface downstream of said lateral sides; a drag reduction assembly mounted to said vehicular object to reduce drag on said vehicular object due to air through which said vehicular object is moving, said drag reduction assembly comprising first and second drag reduction devices associated with respective of said first and second lateral sides of said vehicular object; each of said drag reduction devices including: first and second flow modifiers located on respective of said first and second lateral sides of said vehicular object, said flow modifiers configured as vortex generators; and a flexible shell having a leading edge connected to said vehicular object such that said flexible shell is downstream of said flow modifiers, said flexible shell defining a curved outer flow surface extending from said leading edge adjacent to a respective one of said first and second lateral sides of said vehicular object to a trailing edge spaced apart in a rearward direction from said rear surface of said vehicular object.