Forced air aircraft de-icer system

Details Forced air aircraft de-icer system Forced air aircraft de-icer system

1996-09-30

1998-05-26

Grant, William

Aeronautics and astronautics

Aircraft structure

Ice prevention

244134R, 239589, B64D 1504, B05B 100

Patent

active

057554048

ABSTRACT:
A system for the forced air de-icing of aircraft is described which includes a source of pressurized air and an axisymmetric, high momentum focused air jet nozzle having an inlet of diameter D and an outlet of diameter d with an axisymmetric contour therebetween defined by a converging portion of first radius near the inlet and a reflex portion of second radius near the outlet, the converging and reflex portions being connected by a convergent conical portion tangent to both the converging and reflex portions and having an angle of convergence equal to or less than 30.degree., wherein D is equal to or greater than 2d, the first radius is equal to or greater than D, the second radius is equal to or greater than d, and the length of the nozzle is equal to or greater than 1.5 D, and an insulated conduit for conducting pressurized air from the source to the nozzle.

REFERENCES:
patent: 2422746 (1947-06-01), Patterson
patent: 4161280 (1979-07-01), Kasinskas
patent: 4813611 (1989-03-01), Fontana
patent: 5134266 (1992-07-01), Peppard
patent: 5244168 (1993-09-01), Williams

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