Aerodynamic drag reduction apparatus for gap-divided bluff...

Details Aerodynamic drag reduction apparatus for gap-divided bluff... Aerodynamic drag reduction apparatus for gap-divided bluff...

2006-07-11

2006-07-11

Gordon, Stephen (Department: 3612)

Land vehicles: bodies and tops

Bodies

With distinct wind deflector

C296S180400, C296S180200

Reexamination Certificate

active

07073845

ABSTRACT:
An apparatus for reducing the aerodynamic drag of a bluff-bodied vehicle such as a tractor-trailer in a flowstream, the bluff-bodied vehicle of a type having a leading portion, a trailing portion connected to the leading portion, and a gap between the leading and trailing portions defining a recirculation zone. The apparatus is preferably a baffle assembly, such as a vertical panel, adapted to span a width of the gap between the leading and trailing portions so as to impede cross-flow through the gap, with the span of the baffle assembly automatically adjusting for variations in the gap width when the leading and trailing portions pivot relative to each other.

REFERENCES:
patent: 619785 (1899-02-01), Perry et al.
patent: 1104938 (1914-07-01), Schreiber
patent: 3971586 (1976-07-01), Saunders
patent: 4021069 (1977-05-01), Hersh
patent: 4257640 (1981-03-01), Wiley
patent: 5078448 (1992-01-01), Selzer et al.

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