Noise suppressing damper
    7.
    发明授权
    Noise suppressing damper 有权
    噪声抑制阻尼器

    公开(公告)号:US08043148B2

    公开(公告)日:2011-10-25

    申请号:US11989999

    申请日:2008-01-16

    IPC分类号: F24F13/14 F24F13/10 F24F13/04

    摘要: A damper is provided to suppress the abnormal noise or air noise at the small opening of the damper. The damper includes a wall surface which forms an air flow passage, a stationary portion which extends from the wall surface to the center of a flow passage, and a rotating portion rotatably disposed in the flow passage, having one end in contact with a portion of the stationary portion at a downstream side of an air flow through the flow passage. A curved wall portion as a convex curved surface protruding to the center of the flow passage is formed on a position of the wall surface on which the air flow passing between the one end and the stationary portion impinges.

    摘要翻译: 提供阻尼器以抑制阻尼器小开口处的异常噪声或空气噪声。 阻尼器包括形成空气流动通道的壁表面,从壁表面延伸到流动通道的中心的静止部分和可旋转地设置在流动通道中的旋转部分,其一端与一部分 通过流路的空气流的下游侧的静止部分。 在通过一端与静止部之间的空气流碰撞的壁面的位置上形成作为突出于流路中心的凸曲面的弯曲壁部。