Sound suppressor apparatus

Details Sound suppressor apparatus Sound suppressor apparatus

1978-03-03

1979-09-25

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181220, 181222, B64D 3306, B64F 126

Patent

active

041687639

ABSTRACT:
A ring of tubes extends inwardly from a noise suppressor housing wall sufficiently far to impinge upon the periphery of the high velocity core of a supersonic jet exhaust to disrupt the core and reduce the sound power generated. A large volume of outside cooling air is induced by jet pump action into the suppressor; and a portion of this cooling air is ducted through the tubes and into the exhaust stream to maintain the temperature of the tubes below an acceptable level to prevent their premature destruction.

REFERENCES:
patent: 2926743 (1960-03-01), Melchior
patent: 2930405 (1960-03-01), Welsh
patent: 3151701 (1964-10-01), Duthion et al.

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