Infrared suppressor device

Details Infrared suppressor device Infrared suppressor device

1978-09-12

1980-07-29

Hart, Douglas

Power plants

Reaction motor

Air passage bypasses combustion chamber

60264, 2391273, 23926517, F02K 304, B64D 3304

Patent

active

042144418

ABSTRACT:
An air-cooled contoured plug fitted within the engine tailpipe to physica block any direct view to the turbine section. A vortex cavity is provided around the plug just aft of the plug maximum diameter in order to reduce the length of the cone-shaped plug. The trapped vortex reenergizes the boundary layer built up along the cone surface and allows the flow of hot gases to turn the corner without separating.

REFERENCES:
patent: 3059423 (1962-10-01), Berlyn
patent: 3508561 (1970-04-01), Cornish
patent: 3659418 (1972-05-01), Poucher
patent: 3970252 (1976-07-01), Smale
patent: 4044555 (1977-08-01), McLoughlin

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