Noise attenuator

G - Physics – 10 – K

Patent

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Details

G10K 11/16 (2006.01) F01N 1/00 (2006.01) F01N 1/08 (2006.01)

Patent

CA 2235048

A noise attenuation system is provided for use in attenuating noise in gas flowing through an exhaust system. The noise attenuation system includes a tube and an acoustic reflector attached to the tube. The tube has an inlet, an outlet, and a passageway. The acoustic reflector includes a tab that extends across the passageway to occlude less than about fifty percent of the cross-sectional area of the passageway. The tab has a surface that faces generally obliquely toward the inlet end of the tube.

L'invention porte sur un système d'atténuation du bruit utilisé pour effectivement atténuer le bruit provoqué par le déplacement d'un gaz dans un pot d'échappement. Le système d'atténuation du bruit comprend un tube, un réflecteur acoustique rattaché à ce tube. Ce dernier comprend une entrée, une sortie et un passage. Le réflecteur acoustique comprend une patte qui s'avance en travers le passage de façon à obturer environ moins de la moitié de sa zone transversale. La surface de la patte est placée généralement de face, en oblique vers l'extrémité de l'entrée du tube.

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