Noise attenuation device for a vehicle exhaust system

Details Noise attenuation device for a vehicle exhaust system Noise attenuation device for a vehicle exhaust system

2006-11-07

2006-11-07

Martin, Edgardo San (Department: 2837)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C123S184210, C123S184530

Reexamination Certificate

active

07131514

ABSTRACT:
A noise attenuation device for a vehicle exhaust system is provided. The device includes an exhaust pipe having a passageway for receiving exhaust gas pulses from an engine. The device further includes a plurality of vanes extending from an inner surface of the passageway and spaced apart from one another. The vanes are configured to reduce turbulence in the exhaust gas pulses flowing past the vanes to reduce noise at a downstream outlet of the exhaust pipe.

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