Fluid rotary apparatus having tapered rotors
    61.
    发明授权
    Fluid rotary apparatus having tapered rotors 失效
    具有锥形转子的流体旋转装置

    公开(公告)号:US5533887A

    公开(公告)日:1996-07-09

    申请号:US233273

    申请日:1994-04-26

    Abstract: A fluid rotary apparatus includes a casing, a plurality of screw rotors, and a driving device. The casing has a suction hole, a discharging hole, and an inner tapered surface. The rotors have thread grooves and are rotatably supported within the casing to be rotated synchronously in mesh with each other. An outer peripheral surface of each rotor has a flat surface approaching or sliding in contact with the inner tapered surface of the casing. The driving device rotates the rotors. Fluid is drawn through the suction hole, compressed, and discharged through the discharging hole by utilization of a change of a volume of a space defined by the plurality of screw rotors and the casing. A band-like chip seal is provided at the flat surface of each rotor. The chip seal has dynamic pressure notches at it surface to produce dynamic pressure from viscous fluid.

    Abstract translation: 流体旋转装置包括壳体,多个螺杆转子和驱动装置。 壳体具有抽吸孔,排出孔和内锥形表面。 转子具有螺纹槽并且可旋转地支撑在壳体内以彼此啮合同步地旋转。 每个转子的外周表面具有与壳体的内锥形表面接近或滑动接触的平坦表面。 驱动装置旋转转子。 流体通过抽吸孔被抽吸,通过利用由多个螺杆转子和壳体限定的空间的体积的变化而通过排出孔被压缩和排出。 在每个转子的平坦表面上设置带状的密封件。 芯片密封件在其表面具有动态压力缺口,以产生来自粘性流体的动态压力。

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