Method and apparatus for attenuating sound

Details Method and apparatus for attenuating sound Method and apparatus for attenuating sound

1981-11-18

1983-12-06

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181239, 181275, 181282, 181296, F01N 108

Patent

active

044187904

ABSTRACT:
Methods and apparatus for attenuating sound levels characterized by a muffler utilizing the splitting of exhaust gas flows followed by recombining of these split flows in mutually opposed relationship. Sequentially alternating expansion and contraction of the exhaust gas is caused to occur, during which increments of exhaust gas exit sequentially along the exhaust gas flow from the muffler.

REFERENCES:
patent: 1866004 (1932-07-01), Beamer
patent: 3177973 (1965-04-01), Benez
patent: 3704763 (1972-12-01), Becker et al.
patent: 3750841 (1973-08-01), Brown
patent: 3948349 (1976-04-01), Bychinsky
patent: 3968854 (1976-07-01), Gordon et al.
patent: 4165798 (1979-08-01), Martinez

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