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CN103502604A 消音装置和包括这种装置的机动车辆 无效 - 撤回

消音装置和包括这种装置的机动车辆
摘要：
一种消音装置，包括：壳体（11），其用于放置在一个或多个声音生成设备周围；和消音板（20），允许空气经由所述消音板流出从壳体。消音板包括通流空间（23），所述通流空间定位在面向壳体内侧的第一壁（21）和沿第一壁延伸且与第一壁隔开一定距离的第二壁（22）之间。第一壁设有多个孔（24），允许空气经由所述多个孔流入通流空间。扩散构件（25）与每个孔正对地定位在第二壁上，以使得经由所述孔朝向第二壁流动的空气转向，从而使得所述空气流动继而在通流空间中沿各个不同方向前进。通流空间的至少一些内部表面由吸音材料（29）覆盖。允许空气从通流空间流动和经由消音板的出口孔（31）前进至周围环境。
摘要（英）：

Device for damping of sounds which comprises a casing (11) intended to be placed round one or more sou nd-generating equipment items, and a sound-damping panel (20) via which air is allowed to flow out from the casing. The sound-damping panel comprises a throughflow space (23) situated between a first wall (21) which faces towards the inside of the casing and a second wall (22) which extends along and at a distance from the first wall. The first wall is provided with a plurality of apertures (24) via which air is allowed to flow into the throughflow space. A diffuser means (25) is situated on the second wall directly opposite each aperture to deflect the air which via this aperture flows towards the second wall so that this air flow then proceeds in various different directions in the throughflow space. At least some of the internal surfaces of the throughflow space are covered with sound-absorbing material (29). Air is allowed to flow from the throughflow space and proceed to the surroundings via outlet apertures (31) of the sound-damping panel.

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