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1. 发明申请

US20110297863A1 STEM SHOULDER SEAL WITH DOUBLE RINGS AND AN ASSEMBLY OF INDEPENDENT DUAL STEM SEALS 有权
标题翻译： STEM肩部密封双环和独立双边密封组件
公开(公告)号：US20110297863A1
公开(公告)日：2011-12-08
申请号：US13096579
申请日：2011-04-28
申请人： Changxiang XU , Mao YANG , Zhanji CHEN
发明人： Changxiang XU , Mao YANG , Zhanji CHEN
IPC分类号： F16K5/06
CPC分类号： F16K5/0694 , F16K41/046
摘要： A stem shoulder seal with double rings is composed of a sealing ring, a clamping ring and a spherical or conical stem shoulder, and the sealing ring is of a self-energized seal designed to its ultimate allowable strength and automatically free of any load beyond its ultimate strength. An assembly of independent dual stem seals, consisting of a stem shoulder seal with double rings, a stem cylinder seal with triangular sections and an isolating mating, can ensure that a stem has three seals which get well seated automatically at the same time to bear an identical ultimate medium pressure independently or without any mutual interference in service when assembled to the extent that the stem operating torque is just definitely increased, thereby ensuring that a stem sealing has a triple safety.
摘要翻译：具有双环的杆肩密封件由密封环，夹紧环和球形或圆锥形杆肩组成，密封环具有自给自足的密封，设计为其极限允许强度，并自动消除超过其的任何载荷极限强度。独立的双杆密封组件，由带双环的杆肩密封件，具有三角形截面的阀杆气缸密封件和隔离配合件组成，可确保阀杆具有三个密封件，同时自动完全自动承受相同的最终介质压力在组装时独立地或没有任何相互干扰的作用，使得阀杆操作扭矩肯定地增加，从而确保阀杆密封具有三重安全性。

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