Aeronautics and astronautics – Aircraft structure – Fuselage and body construction
Patent
1975-01-29
1976-01-06
Reger, Duane A.
Aeronautics and astronautics
Aircraft structure
Fuselage and body construction
60 395, 138 38, 138177, 239128, 23926511, 343 18E, B64C 140
Patent
active
039306275
ABSTRACT:
A device for shielding a heated surface from infrared detection through an exhaust opening adjacent the heated surface which comprises an exhaust gas conducting member adapted to receive heated exhaust gases from the exhaust opening with the member having a configuration which blocks the exhaust opening from line-of-sight view through the outlet to the member. The exhaust gas conducting member includes apparatus to inhibit heat transfer across its interior surface while promoting heat transfer through the wall of the member. Additionally there is provided a diffusion device for breaking up a main stream of heated exhaust gas into a plurality of smaller streams to reduce infrared radiation from the exhaust gas which includes a body adapted to receive heated exhaust gas with insulation apparatus to maintain the exterior surface of the body at a relatively low temperature. A plurality of openings in the body provide discharge of smaller streams of exhaust gas. The openings may be shaped to provide a cross-sectional configuration for the smaller streams of exhaust gas which promote dissipation of heat and energy and which reduce the emissivity of the gas streams.
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Reger Duane A.
Sauberer Paul E.
Smyth George F.
Summa Corporation
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