Hydrodynamic seal and a method for providing the same
    2.
    发明授权
    Hydrodynamic seal and a method for providing the same 失效
    流体动力密封及其提供方法

    公开(公告)号:US06273426B1

    公开(公告)日:2001-08-14

    申请号:US09359567

    申请日:1999-07-22

    CPC classification number: H05K5/063 F16J15/447 Y10S277/928

    Abstract: A hydrodynamic seal efficiently protects an interior cavity of an enclosure from external elements. The seal has an upper portion having a recess formed in a center section of the upper portion. A lower portion, having a raised portion, abuts the upper portion and forms a passage between the two portions. The passage between the upper and lower portions is reduced in area along the recessed and raised portions. When air with water and/or dust passes through the passage, a velocity and pressure change occurs, thereby the water and/or dust is deposited in a channel. The water and/or dust flows along the channel and is exhausted to an external so that the water and/or dust is prevented from entering the interior cavity of the enclosure.

    Abstract translation: 流体动力密封有效地保护外壳的内部空腔免受外部元件的影响。 密封件具有形成在上部的中心部分中的凹部的上部。 具有凸起部分的下部邻接上部并在两部分之间形成通道。 沿着凹部和凸起部分,上部和下部之间的通道减小了面积。 当具有水和/或粉尘的空气通过通道时,发生速度和压力变化,从而水和/或灰尘沉积在通道中。 水和/或灰尘沿着通道流动并被排出到外部,使得防止水和/或灰尘进入外壳的内部空腔。

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