Minimum area smoke evacuation nozzle

Details Minimum area smoke evacuation nozzle Minimum area smoke evacuation nozzle

1990-08-09

1994-05-17

Huppert, Michael S.

Aeronautics and astronautics

Aircraft structure

Passenger or crew accommodation

2441292, B64D 1300

Patent

active

053120728

ABSTRACT:
A smoke evacuation nozzle for an airplane having minimum diameter at the fuselage pressure hull exit for minimum structural integrity disruption. The nozzle is a converging-diverging nozzle which maintains sonic flow down to a very low altitude, thereby obtaining maximum airflow through it at all times. The throat is located at the point where the nozzle goes through the fuselage pressure hull so that the penetration through the fuselage pressure hull is minimal.

REFERENCES:
patent: 284962 (1883-09-01), Huston
patent: 2299668 (1942-11-01), Webster
patent: 2980033 (1961-04-01), Waddington et al.
patent: 3545886 (1970-12-01), Chalom
patent: 4166477 (1979-09-01), Duthion et al.
patent: 4382569 (1983-05-01), Boppe et al.
patent: 4552325 (1985-11-01), Bruensicke
Potter and Foss, Fluid Mechanics, 1982, pp. 490-497.
Elements of Gasdynamics, Chapter 5, Flow in Ducts and Wind Tunnels, Liepmann et al., May 1967, pp. 124-143.

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