Stamp formed muffler with low back pressure

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

1990-09-04

1992-12-22

Gellner, Michael L.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181269, F01N 718

Patent

active

051735776

ABSTRACT:
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 therein. 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 communicate 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 contributing 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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