Sound attenuator for a supercharged marine propulsion device
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United States of America Patent
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Jun 22, 2004
Grant Date -
N/A
app pub date -
Nov 5, 2002
filing date -
Nov 5, 2002
priority date (Note) -
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Abstract
A sound attenuating system is provided which allows a relatively unobstructed airflow conduit to be associated with chambers that reflect various frequencies of sound back towards the source of the sound. The chambers are arranged in a coaxial association with the primary airflow conduit and are sized to reflect a certain range of frequencies of sound. Holes extend through the airflow conduit, in a radial direction, to place the airflow conduit in fluid communication with the chambers which surround portions of the conduit.
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