SOUND-REDUCING PANEL FOR AN AXIAL FAN APPARATUS

The present invention refers to a sound-reducing panel (100) for an axial fan apparatus (10), comprising a planar main body (101, 201, 301, 401, 501, 601, 701) comprising: a sound-reducing surface (102) configured to face towards a fan outlet (11) of the axial fan apparatus (10); at least one perime...

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Bibliographische Detailangaben
Hauptverfasser:	MEDURI, Simone, D'ALESSANDRO, Luca
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING HEATING LIGHTING MECHANICAL ENGINEERING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS RANGES SOUND-PRODUCING DEVICES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The present invention refers to a sound-reducing panel (100) for an axial fan apparatus (10), comprising a planar main body (101, 201, 301, 401, 501, 601, 701) comprising: a sound-reducing surface (102) configured to face towards a fan outlet (11) of the axial fan apparatus (10); at least one perimetric acoustic resonator (103) at least one outer edge of the sound-reducing surface (102), wherein the at least one acoustic resonator (103) comprises at least one internal cavity (105) to the planar main body (101, 201, 301, 401, 501, 601, 701), and further comprises at least one inlet slit (106) open towards the at least one internal cavity (105) at a plane of the sound-reducing surface (102), in particular to provide at least one resonator of the lambda/ 4 or Helmholtz type, and wherein the at least one inlet slit (106) is configured to be at a predetermined distance from the fan outlet (11), on a plane perpendicular to a rotation axis of an axial fan (12) having the fan outlet (11).