公开(公告)号：US10001217B2

公开(公告)日：2018-06-19

申请号：US14995850

申请日：2016-01-14

申请人： Isomag Corporation

发明人： Stephen M. Dawson

IPC分类号： F16J15/54 ,  F16J15/34

CPC分类号： F16J15/3404 ,  F16J15/3444 ,  F16J15/3464

摘要： A magnetic rotary seal with improved drain back is provided, comprising a housing adapted to matingly engage a fixed opening, wherein the housing includes an annular retaining member. A stator is positioned within the housing, wherein the stator includes a first resilient sealing member adapted to sealingly contact the housing, and a first frictional sealing face. A rotor is positioned between the annular retaining member of the housing and the stator, wherein the rotor includes a second resilient sealing member adapted to sealingly contact a shaft, and a second frictional sealing face. Magnets are operatively positioned between the stator and the rotor urging engagement of the first frictional sealing face of the stator with the second frictional sealing face of the rotor. The housing further includes an annular channel for receiving lubricating fluids from within the seal, and a drain port in fluidic communication with the channel. The annular retaining member includes one or more expulsion ports formed therein to permit lubricating fluids to move away from the rotor and into the channel during operation of the seal.

公开(公告)号：US20160201803A1

公开(公告)日：2016-07-14

申请号：US14995850

申请日：2016-01-14

申请人： Isomag Corporation

发明人： Stephen M. Dawson

IPC分类号： F16J15/34

CPC分类号： F16J15/3404 ,  F16J15/3444 ,  F16J15/3464

摘要： A magnetic rotary seal with improved drain back is provided, comprising a housing adapted to matingly engage a fixed opening, wherein the housing includes an annular retaining member. A stator is positioned within the housing, wherein the stator includes a first resilient sealing member adapted to sealingly contact the housing, and a first frictional sealing face. A rotor is positioned between the annular retaining member of the housing and the stator, wherein the rotor includes a second resilient sealing member adapted to sealingly contact a shaft, and a second frictional sealing face. Magnets are operatively positioned between the stator and the rotor urging engagement of the first frictional sealing face of the stator with the second frictional sealing face of the rotor. The housing further includes an annular channel for receiving lubricating fluids from within the seal, and a drain port in fluidic communication with the channel. The annular retaining member includes one or more expulsion ports formed therein to permit lubricating fluids to move away from the rotor and into the channel during operation of the seal.

摘要翻译： 提供了具有改进的排水回路的磁性旋转密封件，包括适于匹配地接合固定开口的壳体，其中壳体包括环形保持构件。 定子定位在壳体内，其中定子包括适于密封地接触壳体的第一弹性密封构件和第一摩擦密封面。 转子定位在壳体的环形保持构件和定子之间，其中转子包括适于密封地接触轴的第二弹性密封构件和第二摩擦密封面。 磁体可操作地定位在定子和转子之间，促使定子的第一摩擦密封面与转子的第二摩擦密封面接合。 壳体还包括用于从密封件内接收润滑流体的环形通道和与通道流体连通的排放口。 环形保持构件包括形成在其中的一个或多个排出口，以允许润滑流体在密封件的操作期间离开转子并进入通道。