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1. 发明授权

US5340121A Face seal with integral fluorocarbon polymer bellows 失效
标题翻译：带密封氟碳聚合物波纹管的表面密封
公开(公告)号：US5340121A
公开(公告)日：1994-08-23
申请号：US961429
申请日：1992-10-15
申请人： Terry M. Lewis , John W. Kosty , James R. Goodman , Mark A. Krzemein , Jon M. Lenhert , Jeffrey H. Arbogast
发明人： Terry M. Lewis , John W. Kosty , James R. Goodman , Mark A. Krzemein , Jon M. Lenhert , Jeffrey H. Arbogast
IPC分类号： F16J15/36
CPC分类号： F16J15/36
摘要： A mechanical seal assembly is provided for inhibiting a fluid located in a higher pressure region of an apparatus from flowing to a relatively lower pressure region. The seal assembly is configured for cooperation with a seal ring connected to a cylindrical shaft which rotates about its longitudinal axis and which is mounted in the apparatus housing. The seal assembly includes an outer casing in which is mounted a non-rotatable seal ring which encircles the shaft for limited axial movement toward and away from the shaft seal ring. A biassing element is mounted in the outer casing for urging the non-rotatable seal ring axially into slidably mating engagement with the sealing face of the rotatable shaft seal ring. The biassing element includes a cylindrical bellows which encircles the shaft and a spring. The bellows includes a collapsible outer wall with a first skirt on one end of the outer wall and a second skirt on the other end of the outer wall. The first skirt is bonded to the seal ring, and the second skirt is clamped axially against the outer casing end wall.
摘要翻译：提供了机械密封组件，用于抑制位于设备的较高压力区域中的流体流向相对较低的压力区域。密封组件构造成与连接到圆柱形轴的密封环配合，所述圆柱形轴围绕其纵向轴线旋转并且安装在装置壳体中。密封组件包括外壳，其中安装有不可旋转的密封环，其环绕轴以限制朝向和远离轴密封环的轴向运动。偏置元件安装在外壳中，用于将不可旋转的密封环轴向推动成与可旋转轴密封环的密封面可滑动地配合接合。偏置元件包括环绕轴和弹簧的圆柱形波纹管。波纹管包括可折叠的外壁，在外壁的一端具有第一裙部，在外壁的另一端上具有第二裙部。第一裙部结合到密封环上，并且第二裙部被轴向地夹紧在外壳端壁上。

2. 发明授权

US4759553A Dynamic rotary face seal 失效
标题翻译：动态旋转面密封
公开(公告)号：US4759553A
公开(公告)日：1988-07-26
申请号：US822740
申请日：1986-01-27
申请人： James R. Goodman , Stephen A. Sekulich , Terry M. Lewis , Dean R. Bainard , Dick L. Kanitz
发明人： James R. Goodman , Stephen A. Sekulich , Terry M. Lewis , Dean R. Bainard , Dick L. Kanitz
IPC分类号： F16J15/34 , F16J15/32 , F16J15/54
CPC分类号： F16J15/3456 , F16J15/3496
摘要： A seal element is positioned within an outer casing and has an anchoring portion which is sealingly secured to the periphery of a rotating shaft by a surrounding coil spring. A radial portion on the seal element extends radially outward from the anchoring portion and passes between two spaced washers, providing a dynamic seal therebetween. An arm extends from one face of the seal element radial portion to resiliently bias the radial portion into engagement with the washers. A spiral hydrodynamic groove on the other face of the seal element radial portion automatically pumps fluid back to the fluid side of the seal apparatus as the shaft and seal element rotate together.
摘要翻译：密封元件位于外壳内，并且具有通过周围的螺旋弹簧密封地固定到旋转轴的周边的锚定部分。密封元件上的径向部分从锚定部分径向向外延伸并且在两个间隔开的垫圈之间通过，从而在它们之间提供动态密封。臂从密封元件径向部分的一个表面延伸，以将径向部分弹性地偏置成与垫圈接合。当密封元件径向部分的另一面上的螺旋流体动力槽随着轴和密封元件一起旋转而自动地将流体泵送到密封装置的流体侧。

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