Nacelle air pump for vector nozzles for aircraft

Details Nacelle air pump for vector nozzles for aircraft Nacelle air pump for vector nozzles for aircraft

1994-12-06

1997-01-14

Kashnikow, Andres

Aeronautics and astronautics

Aircraft structure

244207, 417 76, 417 78, 2391273, 2391271, 60266, B64C 3000

Patent

active

055931120

ABSTRACT:
The nacelle of the aircraft is purged and the sidewall of the vector nozzles of the gas turbine engine in the nacelle is cooled by utilizing the engine fan air to drive ejector pumps mounted in series flow relationship, a rectangular mixing zone and a diffuser with a rectangular cross section and a step in the exhaust nozzle gaspath. This results in minimizing the amount of fan air for driving the system and enhancing engine thrust and enhanced sidewall cooling because the temperature of the mixed air is lower than heretofore known systems.

REFERENCES:
patent: 3469787 (1969-09-01), Marsh et al.
patent: 3682269 (1972-08-01), Jumelle
patent: 4718870 (1988-01-01), Watts
patent: 4800718 (1989-01-01), Zimmerman
patent: 5014932 (1991-05-01), Drittmyer
patent: 5255849 (1993-10-01), Mayer et al.

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