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    • 27. 发明授权
    • Direction-selectable sending-out pump
    • 方向选择送出泵
    • US4728260A
    • 1988-03-01
    • US40967
    • 1987-04-21
    • Fumio Ishii
    • Fumio Ishii
    • F04D5/00B60S1/48F04D15/00F04D29/48F04D29/50F01D1/30
    • F04D29/506B60S1/481F04D15/0016Y10S415/911Y10T137/2663
    • An impeller driven by a reversible motor is set in a housing and a functional path capable of sending out liquid by pump action is formed between the inner wall of the housing and the impeller. On the both-end side of the functional path are provided two adjacent valve chambers divided by a partition, and within this partition is provided a liuqid introducing path leading to the valve chambers via inlets. On the wall of the valve chamber facing the inlet is opened an outlet, and a valve body which opens and closes the inlets and outlets is set. The liquid introducing path, one valve chamber, the functional path, and the other valve chamber are arranged in series, so that, while one valve chamber is positive in pressure, the other chamber does not fail to be negative in pressure. Thus, liquid is sent out exactly to the outlet on the positive pressure side, without being erroneously set to the other outlet on the negative pressure side.
    • 由可逆电动机驱动的叶轮被设置在壳体中,并且在壳体的内壁和叶轮之间形成能够通过泵动作发出液体的功能路径。 在功能路径的两端设置有由隔板分隔开的两个相邻的阀室,并且在该隔板内设置有通过入口通向阀室的液体引入路径。 在面对入口的阀室的壁上打开出口,并且设置打开和关闭入口和出口的阀体。 液体引入路径,一个阀室,功能路径和另一个阀室串联布置,使得当一个阀室在压力为正时,另一个室不会在负压下不起作用。 因此,液体被精确地发送到正压侧的出口,而不会错误地设置在负压侧的另一个出口。