Silencer element

Details Silencer element Silencer element

1975-02-19

1976-06-29

Hix, L. T.

Acoustics

Auditorium

181 33L, 181 69, F01N 108

Patent

active

039660150

ABSTRACT:
A wave interference silencer includes a sealed envelope having an inlet and an outlet in communicaton with an exhaust flow volume therebetween which is divided into a plurality of compartments by spaced apart intermediate wall portions each having an exhaust opening therein to define a continuous exhaust flow path from the inlet to the outlet ends of said envelope and wherein each compartment further includes a flow diverting baffle to prevent linear flow of exhaust through said exhaust flow openings and to define a first and second curvilinear flow path around each baffle each having an acoustical flow path length to produce wave interference silencing of a predetermined noise frequency within each compartment without obstructing exhaust flow between the inlet and outlet of the envelope.

REFERENCES:
patent: 1577626 (1926-03-01), Warth
patent: 2132425 (1938-10-01), List
patent: 2162683 (1939-06-01), Tobin
patent: 2392247 (1946-01-01), Katcher
patent: 3700069 (1972-10-01), Rausch
patent: 3812008 (1974-06-01), Evans et al.
patent: 3812931 (1974-05-01), Hauskins
patent: 3842940 (1974-10-01), Bonikowski

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