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    Vacuum turbine for a drill
    6.
    发明授权
    Vacuum turbine for a drill 失效
    真空涡轮机用于钻头

    公开(公告)号：US3932055A

    公开(公告)日：1976-01-13

    申请号：US494543

    申请日：1974-08-05

    申请人： Lloyd P. Flatland

    发明人： Lloyd P. Flatland

    IPC分类号： B23B45/04 ,  B23B47/10 ,  B23Q5/06 ,  B23B47/00

    CPC分类号： B23B45/042 ,  B23Q5/06 ,  Y10S415/904

    摘要： A vacuum turbine for a drill has a housing of tubular configuration about an axis and has a sleeve disposed within the housing and also of tubular configuration about the axis. The sleeve is spaced from the housing to provide an annular air passage between them. A pair of bearings within the sleeve supports a turbine shaft rotatable about the axis. At one end of the shaft is a turbine runner including blades extending across the air passage and also including a shroud at the periphery of the blades and having a rim face normal to the axis and in very close axial relationship to an end face on the housing to reduce the travel of air therebetween.

    摘要翻译： 用于钻头的真空涡轮机具有围绕轴线的管状构造的壳体，并且具有设置在壳体内的套筒以及围绕轴线的管状构造。 套筒与壳体间隔开，以在它们之间提供环形空气通道。 套筒内的一对轴承支承绕轴线转动的涡轮轴。 在轴的一端是涡轮机转轮，其包括跨过空气通道延伸的叶片，并且还包括在叶片的周边处的护罩，并且具有垂直于轴线的边缘面并且与壳体上的端面非常接近的轴向关系 以减少它们之间的空气的行进。