FIELD: transport.
SUBSTANCE: device comprises case (11) to house one or several sound generators to protect them against ambient air, hence, to kill their sounds. Case (11) has inlet (12) for air to flow in case (11) for hardware cooling and j noise suppressing panel (20) arranged in case (11) for air to flow there through from case (11). Sound suppressing panel (20) comprises first wall (21) directed inside said case and second wall (22) extending along and at a distance from first wall (21) to form flow space between said first and second walls (21) and (22). First wall (21) has holes (24) for air to flow into flow space (23) between walls (21, 22). Dissipation means (25) is arranged at second wall (22) directly opposite every hole (24) and extends from second wall (22) towards appropriate hole (24) in first wall (21). Said means is configured to deflect air flowing through holes (24) towards second wall (22) and, further, in different directions in flow space (23). Several inner surfaces of flow space (23) are coated with sound absorbing material. Sound suppressing panel (20) comprises discharge hole (31) connected with flow space (23) for air to be discharged into ambient medium. Invention discloses vehicle with ICE including the sound suppression device.
EFFECT: efficient noise killing.
15 cl, 6 dwg
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Authors
Dates
2015-06-27—Published
2012-04-12—Filed