Sound-absorbing stirring device

The passage member (10) has a passage through which air flows. The fine perforated plate (20) is a plate-shaped member having a plurality of fine through-holes (21) penetrating therethrough, is provided such that one surface faces the flow field (11) of air in the passage, and the other surface face...

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Bibliographische Detailangaben
Hauptverfasser:	AKIMATSU, RYUNOSUKE, SATO HIROYUKI, TOMIDO AYAKA, IDE SHINJI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The passage member (10) has a passage through which air flows. The fine perforated plate (20) is a plate-shaped member having a plurality of fine through-holes (21) penetrating therethrough, is provided such that one surface faces the flow field (11) of air in the passage, and the other surface faces the inner wall surface (13) of the passage member (10) with an air layer (12) having a constant thickness interposed therebetween, and generates a viscous damping effect by means of air passing through the through-holes (21). The plurality of through-holes (21) are arranged linearly in a direction orthogonal to the center line (CL) of the passage. 通路部件(10)具有供空气流动的通路。微细穿孔板(20)是穿透有多个微细的贯通孔(21)的板状的部件，被设置为一个面面对通路中的空气的流场(11)，另一个面隔着恒定厚度的空气层(12)与通路部件(10)的内壁面(13)相对，该微细穿孔板(20)利用通过贯通孔(21)的空气而产生粘性衰减作用。而且，多个贯通孔(21)沿与通路的中心线(CL)正交的方向配置为直线状。