Jet engine multiduct noise suppressor

Details Jet engine multiduct noise suppressor Jet engine multiduct noise suppressor

1978-02-27

1981-03-10

Hart, Douglas

Power plants

Reaction motor

Plural motive fluid generating means or plural outlets

60271, 181220, 23926511, F02K 140, F02K 148

Patent

active

042546206

ABSTRACT:
Each duct of a plurality of generally cylindrical exhaust ducts disposed in approximately uniform annular arrangement about an axis is a tube, or a lobe of a radially-branched passage, having a discharge end canted so that the radially outer portion of such duct end projects rearward farther than any other portion of the duct end. The canted duct ends direct the major portion of the exhaust of a jet engine inward toward the axis of the annular exhaust duct arrangement in a plurality of exhaust jets, effecting a rearwardly convergent relationship of the jets.

REFERENCES:
patent: 2654552 (1953-10-01), Jonas
patent: 2935842 (1960-05-01), Highberg
patent: 2944624 (1960-07-01), Morley
patent: 2990905 (1961-07-01), Lilley
patent: 3612212 (1971-10-01), MacDonald
patent: 3647021 (1972-03-01), Millman et al.
patent: 3656302 (1972-04-01), Townend
patent: 4036452 (1977-07-01), Schairer
patent: 4050631 (1977-09-01), Syltebo

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