Method and apparatus for attenuating sound

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

F - Mech Eng,Light,Heat,Weapons

01

N

172/31

F01N 1/02 (2006.01) F01N 13/00 (2010.01) F01N 13/18 (2010.01) F01N 1/06 (2006.01) F01N 1/08 (2006.01) F01N 3/06 (2006.01)

Patent

CA 1209485

ABSTRACT OF THE DISCLOSURE 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.

436834

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