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    • 3. 发明授权
    • Immersed vertical pump with reduced thrust loading
    • 浸入式立式泵,减压推力
    • US06171080B2
    • 2001-01-09
    • US09244176
    • 1999-02-04
    • Mitsuhiro WatanabeTomokazu Fujita
    • Mitsuhiro WatanabeTomokazu Fujita
    • F04B1700
    • F04D1/066F04D13/08
    • For an immersed pump having a suction port directly immersed in a liquid for operation, the present invention provides a pump that eliminates the need to seal a rotating shaft with a shaft sealing apparatus and that reduces the effect on individual pump sections of a) the thrust of the rotating shaft effected by the rotation of an impeller and b) the weight of a motor acting in the same direction, thereby preventing defects in the pump. To achieve this object, this invention provides an immersed pump configured in such a way that an impeller 7 is driven and rotated by a motor 2 to draw a liquid from a suction port 4A into a pump housing 3A and eject it from an ejection port 5. The suction port 4A is provided at the lower end of a body frame 1 or on the outer circumference of the upper end of the housing 3A, while the ejection port 5 is provided at the lower end of the housing 3A.
    • 对于具有直接浸没在用于操作的液体中的吸入口的浸入式泵,本发明提供一种泵,其不需要用轴密封装置密封旋转轴,并且减少对单个泵部分的影响a)推力 通过叶轮的旋转而产生的旋转轴,以及b)以相同方向作用的电动机的重量,从而防止泵中的缺陷。为了实现该目的,本发明提供一种浸入式泵,其配置成使得 叶轮7被电动机2驱动并旋转,以将液体从吸入口4A吸入泵壳体3A中并将其从排出口5排出。吸入口4A设置在主体框架1的下端或者 壳体3A的上端的外周,而排出口5设置在壳体3A的下端。