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1. 发明授权

US4155253A Turbine flowmeter 失效
标题翻译：涡轮流量计
公开(公告)号：US4155253A
公开(公告)日：1979-05-22
申请号：US843169
申请日：1977-10-17
申请人： Mahiko Kato , Shigeo Sugiyama , Hiroyuki Amemori , Kazuhiko Nakayama , Kensuke Aizawa
发明人： Mahiko Kato , Shigeo Sugiyama , Hiroyuki Amemori , Kazuhiko Nakayama , Kensuke Aizawa
IPC分类号： G01F1/10 , G01F1/12
CPC分类号： G01F1/10
摘要： A turbine flowmeter comprises a rotor comprising a hub rotatably supported on a shaft at an axial position of a flowmeter housing and a plurality of blades embeddedly fixed to the outer peripheral surface of said hub, means for detecting the rotation of said rotor, and a couple of cone members disposed respectively on the up-stream side and the down-stream side in the flow direction of a fluid being measured to confront at least one surface of the hub of said rotor in coaxial alignment with said rotor. The diameter of at least one cone member of the couple of cone members, at the side to confront said rotor, is larger than outer diameter of the hub of said rotor, whereby a stagnant fluid region is formed between the enlarged diameter part of said cone member and the outer peripheral surface of said hub for holding in stagnant state a part of said fluid being measured.
摘要翻译：涡轮流量计包括转子，该转子包括可转动地支撑在轴上的流量计壳体的轴向位置处的毂和嵌入地固定到所述毂的外周表面的多个叶片，用于检测所述转子的旋转的装置和一对锥形构件分别设置在被测量流体的流动方向上的上游侧和下游侧，以面对与所述转子同轴对准的所述转子的轮毂的至少一个表面。一对锥形构件的至少一个锥形构件在面对所述转子的一侧的直径大于所述转子的毂的外径，由此在所述锥体的扩大直径部分之间形成停滞流体区域构件和所述毂的外周表面，用于将滞留状态保持在被测量的所述流体的一部分。

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