Fluid acoustic silencer

Details Fluid acoustic silencer Fluid acoustic silencer

1977-09-29

1978-12-12

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181269, F01N 112

Patent

active

041291964

ABSTRACT:
The acoustic silencer functions as a pulsation dampener to minimize noise generated in liquid and/or gaseous fluids inherently present in fluid conveying systems which embody pumps, compressors, engines and the like. The device includes a shell divided into first and second compartments by a partition supporting a central tube placing the compartments in communication with each other. The tube passage itself is provided with internal diametrically oppositely positioned vanes forming an acute angle with the axis of the tube to impart a rotational component to fluid flow through the tube. A polar or rotational inertence is thus provided in addition to linear inertence to the fluid flow thereby enabling shorter tubes to be utilized with a subsequent simplication in the manufacture and an increased reliability in the structural integrity of the silencer.

REFERENCES:
patent: 1468398 (1923-09-01), Reed
patent: 3841841 (1974-10-01), Torosian et al.
patent: 4050539 (1977-09-01), Kashiwara et al.

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