Noise attenuator

Details Noise attenuator Noise attenuator

1997-04-30

1999-09-14

Dang, Khanh

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181264, 181269, F01N 100

Patent

active

059526246

ABSTRACT:
A noise attenuation system is provided for attenuating noise in exhaust product flowing through an exhaust system. The noise attenuation system includes a tube and an acoustic reflector attached to the tube. The tube includes an inlet end, an outlet end, and an inner surface defining a passageway through which the exhaust product flows. The acoustic reflector includes a tab extending across the passageway. The tab includes a first surface that is convex and faces toward the inlet end of the tube and a second surface that is concave and faces toward the outlet end of the tube.

REFERENCES:
patent: 2984315 (1961-05-01), Kleinecke
patent: 3578107 (1971-05-01), Everett
patent: 3958660 (1976-05-01), Boor
patent: 4109753 (1978-08-01), Lyman
patent: 4129196 (1978-12-01), Everett
patent: 4396090 (1983-08-01), Wolfhugel
patent: 4467887 (1984-08-01), Vizard
patent: 5413189 (1995-05-01), Browning et al.
Four (4) color photographs of a muffler part No. FO-4 from Stanley Muffler Co., Inc., West Hwy. 80, East Prairie, Missouri 63845.

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