Vortex mixers for reducing the noise emitted by jet engines

Details Vortex mixers for reducing the noise emitted by jet engines Vortex mixers for reducing the noise emitted by jet engines

1977-12-27

1980-08-19

Hart, Douglas

Power plants

Reaction motor

Air passage bypasses combustion chamber

181219, F02K 302

Patent

active

042177561

ABSTRACT:
Apparatus for internally mixing fan exhaust with primary exhaust forward of the nozzle exit plane of a turbofan engine having an outer engine cowling, a splitter wall structure and a tail plug disposed in mid engine upstream of the nozzle exit plane is provided by a plurality of struts disposed radially between the engine tail plug and the outer engine cowling upstream of the nozzle exit plane and a plurality of vortex generating means disposed on the struts for generating vorticies across the entire engine exhaust area.

REFERENCES:
patent: 2443250 (1948-06-01), Johnson
patent: 2880574 (1959-04-01), Howald
patent: 2935847 (1960-05-01), Markowski
patent: 3100627 (1963-08-01), Wilde
patent: 3647020 (1972-03-01), MacDonald
patent: 3655009 (1972-04-01), Hilbig
patent: 3737005 (1973-06-01), Tontini
patent: 3776363 (1973-12-01), Kuethe

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