Minimum area smoke evacuation nozzle
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United States of America Patent
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-
May 17, 1994
Grant Date -
N/A
app pub date -
Aug 9, 1990
filing date -
Aug 9, 1990
priority date (Note) -
Expired
status (Latency Note)
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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.
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