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1. 发明授权

US5478047A Flexible seating structure for valves 失效
标题翻译：阀门柔性座椅结构
公开(公告)号：US5478047A
公开(公告)日：1995-12-26
申请号：US441669
申请日：1995-05-15
申请人： William J. Best , Joseph W. Hoff , Stephen J. Smick , James A. Skurka
发明人： William J. Best , Joseph W. Hoff , Stephen J. Smick , James A. Skurka
IPC分类号： F16K1/226 , F16K5/06
CPC分类号： F16K5/0673 , F16K1/2266
摘要： A rotary valve has a valve housing with a wall defining a flow passageway, a closure member journalled within the valve housing and mounted for movement between a first position for permitting flow of fluid within the flow passageway and a second position for ceasing flow of fluid within the flow passageway, and a flexible seating ring disposed at least partially within the flow passageway in a position for sealing engagement with the closure member in second position. The flexible seating ring has a flow-through section sized to fit within the flow passageway with a clearance fit, and a flanged seating section extending outwardly from the flow-through section and positioned for sealing contact with the closure member to seal the valve. A seating ring support member is positioned to support the seating ring in a manner to permit the seating ring to move axially and radially within the flow passageway to provide improved tolerance to dimensional variation in manufacture.
摘要翻译：旋转阀具有阀壳体，其具有限定流动通道的壁，闭合构件轴颈安装在阀壳体内并且安装成用于在用于允许流动通道内的流体流动的第一位置和用于停止流体流动的第二位置之间移动流动通道以及至少部分地设置在流动通道内的第二位置处的密封接合位置的柔性安置环。柔性座环具有流通部分，其尺寸设置成以间隙配合装配在流动通道内;以及法兰安装部分，其从流通部分向外延伸并定位成用于密封与闭合部件的密封以密封阀。座环支撑构件被定位成以允许座环在流动通道内轴向和径向移动的方式支撑座环，以提供对制造中的尺寸变化的改进的公差。

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