Vehicle drag reduction with air scoop vortex impeller and...

Land vehicles: bodies and tops – Bodies – With distinct wind deflector

Reexamination Certificate

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Reexamination Certificate

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10446946

ABSTRACT:
An improved air scoop device utilizes vortex loops to reduce drag. The apparatus includes a sliding self-retracting portion having a scoop intake, a first chamber area and curved rear deflector with exhaust. The vortex loops connect the curved deflector area with the intake area. The vortex impeller apparatus also has a base plate portion, with a stop and springs. It is mounted at the truck trailer rear end. The base plate portion of the apparatus supports the sliding portion. The moving truck causes the sliding portion to extend back beyond the base plate and trailer's rear. The apparatus' exhaust ventilates the low-pressure area behind the moving truck trailer. When the truck stops, springs or compression pistons retract the sliding portion back over the base plate. In this retracted position, the apparatus fits flush. Variable surface texturing may be applied to the impellers and truck trailer's rounded trailing edges.

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