Intake silencer system

Details Intake silencer system Intake silencer system

1998-08-12

1999-07-27

Dang, Khanh

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181282, F02M 3500

Patent

active

059293977

ABSTRACT:
The case of an intake silencer system includes a first case half and a second case half coupled to each other at mating faces, with an intake duct clamped between the mating faces. The intake duct opens into a resonant chamber within the case, so that noise is damped by a resonant effect. Three ribs are provided on an inner surface of the first case half, thereby defining four subsidiary silencing chambers each functioning as a side branch for producing a resonant effect to obtain a silencing effect in a wide frequency range. The ribs also contribute to an enhancement in rigidity of the wall surfaces of the case.

REFERENCES:
patent: 5424494 (1995-06-01), Houle et al.
patent: 5647314 (1997-07-01), Matsumura et al.

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