Fluid sprinkling – spraying – and diffusing – Reaction motor discharge nozzle with jacketed or hollow... – With subsequent mixing in main discharge stream in or...
Patent
1967-09-28
1976-07-20
Feinberg, Samuel
Fluid sprinkling, spraying, and diffusing
Reaction motor discharge nozzle with jacketed or hollow...
With subsequent mixing in main discharge stream in or...
60265, 60271, B64D 3304
Patent
active
039702529
ABSTRACT:
An exhaust duct for a turbofan aircraft engine includes a bulbous inner cone which blocks direct sight of the turbine through the duct. Ram air from the fan is caught by scoops and conveyed from a plenum into the double outer wall of the exhaust duct and through hollow struts to the inner cone. Circumferential outlets for film cooling air are distributed axially of the surface of the outer and inner walls. Also, film cooling air is discharged from the struts to cool the rear part of the struts which are visible from without the engine. Direct radiation from within the cone to the outside is blocked by ribs extending into the inside of the inner cone immediately upstream of the cooling air outlets.
REFERENCES:
patent: 2974486 (1961-03-01), Edwards
patent: 3210934 (1965-12-01), Smale
patent: 3262264 (1966-07-01), Gardiner et al.
patent: 3372874 (1968-03-01), Colville et al.
patent: 3374624 (1968-03-01), Coplin
Pyne, Jr. James A.
Smale Charles H.
Feinberg Samuel
Fitzpatrick Paul
General Motors Corporation
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