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热词
    • 9. 发明公开
    • Flowmeter
    • 流量计
    • EP0221501A1
    • 1987-05-13
    • EP86114983.9
    • 1986-10-28
    • TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION
    • Moriuchi, YousukeKousai, Tadashi Terumo K.K.
    • A61M5/168
    • A61M5/16886
    • A flowmeter has a main body (8) having fluid inlet and outlet passages (7a, 9a) and a vertical fluid channel (11) formed in the main body (8) and having one end communicating with the inlet passage (7a) and the other end communicating with the outlet passage (9a). The vertical fluid channel (11) has a first passage (11a) and a second passage (11c) having a cross-sectional area larger than that of the first passage (11a). The first passage (11 a) has therein a float (14) for regulating a flow rate of the fluid flowing therethrough, and is tapered to have a cross-sectional area increasing from the inlet passage side toward the outlet passage side such that the float (14) remains in position when the fluid passes through the first passage (11a). The second passage (11c) has therein a valve (17) for opening the second passage (11c) when the fluid is to flow therethrough and for closing the second passage (11c) when the fluid is not to flowtherethrough. The valve (17) has a projection (17b) for moving the float (14) toward the inlet passage (7a) when the second passage (1 lc) is closed. The float (14) and the valve (17) have specific gravities larger or smaller than that of the fluid.
    • 一种流量计具有一个主体(8),该主体具有形成在主体(8)中的流体入口和出口通道(7a,9a)和竖直流体通道(11),并具有与入口通道(7a)连通的一端和 另一端与出口通道(9a)连通。 垂直流体通道(11)具有第一通道(11a)和第二通道(11c),第二通道(11c)的横截面积大于第一通道(11a)的横截面积。 第一通路11a在内部具有用于调节流过其中的流体的流量的浮子14,并且该第一通道11a逐渐变细以具有从入口通道侧向出口通道侧增大的横截面积, (14)在流体通过第一通道(11a)时保持在适当位置。 第二通路11c在内部具有用于在流体流过时打开第二通路11c并且在流体不流通时关闭第二通路11c的阀17。 当第二通道(11c)关闭时,阀(17)具有用于使浮子(14)朝向入口通道(7a)移动的突起(17b)。 浮子(14)和阀(17)的比重大于或小于流体的比重。