Noise-attenuating internal combustion engine air intake system

Details Noise-attenuating internal combustion engine air intake system Noise-attenuating internal combustion engine air intake system

1992-12-10

1995-06-13

Gellner, M. L.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181246, 181255, F02M 3500

Patent

active

054244943

ABSTRACT:
Noise is attenuated by a resonator having an inlet pipe leading to an expansion chamber and an outlet pipe leading from the expansion chamber. The two pipes are not aligned with each other at the expansion chamber. The portions of the two pipes proximate the expansion chamber contain respective venturis. The expansion chamber also functions as a Helmholtz resonator by providing the resonator with one or more apertures between the outlet pipe and the expansion chamber.

REFERENCES:
patent: 3835956 (1974-09-01), Kishira
patent: 4361206 (1982-11-01), Tsai
patent: 4782912 (1988-11-01), Wandless
patent: 4790864 (1988-12-01), Kostun
patent: 4936413 (1990-06-01), Lee
patent: 5016728 (1991-05-01), Zulawski
patent: 5162621 (1992-11-01), Lee
patent: 5163387 (1992-11-01), Lee

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