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1. 发明授权

US4604254A Butterfly valve 失效
标题翻译：蝶阀
公开(公告)号：US4604254A
公开(公告)日：1986-08-05
申请号：US735858
申请日：1985-05-20
申请人： Masahiko Yamamoto , Yoshinori Nishino , Tadayoshi Uda , Yoshiteru Sonoda , Toshio Suyama
发明人： Masahiko Yamamoto , Yoshinori Nishino , Tadayoshi Uda , Yoshiteru Sonoda , Toshio Suyama
IPC分类号： F16K1/226 , F16K1/228 , F16K27/02 , F16K1/22 , B28B7/22
CPC分类号： F16K1/228 , F16K1/2261 , F16K27/0272 , Y10T137/7036
摘要： A butterfly valve comprises a substantially cylindrical casing (20) having an annular valve seat (A) on its inner peripheral surface, and a valve disk (44) disposed within the casing (20) and rotatable about an axis (35). The valve disk (44) is formed at an outer peripheral edge portion with an annular groove (52) in which an annular valve seal (51) is partially fitted. The valve seal (51) is adapted for pressing contact with the valve seat (A) at a predetermined pressure and anchored in the annular groove (52) by resin (58) pressure-injected into the annular groove (52) through a resin injection channel (53) in communication with the groove. Accordingly, the seal pressure of the valve seal (51) on the valve seat (A) can be set to the predetermined value at all times even if the dimensions of the valve seat (A) and the valve disk (44) and the position of the axis of rotation (35) involve errors.
摘要翻译：蝶阀包括在其内周表面上具有环形阀座（A）的基本上圆柱形的壳体（20），以及设置在壳体（20）内并可围绕轴线（35）旋转的阀盘（44）。阀盘（44）在外周边缘部分形成有环形槽（52），环形阀密封件（51）部分地装配在该环形槽中。阀门密封件51适于以预定的压力与阀座（A）压力接触并通过树脂注入到环形槽（52）中的树脂（58）固定在环形槽52中。通道（53）与凹槽连通。因此，即使阀座（A）和阀盘（44）的尺寸以及阀座（A）的位置，也可以始终将阀座（A）上的阀密封件（51）的密封压力始终设定为规定值的旋转轴（35）涉及错误。

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