Stamp formed muffler with low back pressure

Details Stamp formed muffler with low back pressure Stamp formed muffler with low back pressure

F - Mech Eng,Light,Heat,Weapons

01

N

172/39

F01N 1/02 (2006.01) F01N 13/18 (2010.01) F01N 1/08 (2006.01)

Patent

CA 2030407

The subject invention is directed to a muffler formed from a plurality of stamped components. The stamped components include at least a pair of plates formed to define an array of tubes there- in. The tubes include a plurality of unidirectional flow tubes each of which carries a portion of the exhaust gas flowing through the muffler. The plurality of unidirectional flow tubes communi- cate with an in-line expansion chamber defined within the muffler. The in-line expansion chamber enables exhaust gas flowing from the unidirectional flow tubes to expand significantly thereby con- tributing to noise attenuation. The muffler may further include at least one external shell defining a chamber which communicates with the tubes or the in-line expansion chamber.

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