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1. 发明申请

WO2012087945A1 STATIC-DYNAMIC SEAL ASSEMBLY WITH HYSTERESIS-INDUCING PASSAGES 审中-公开
标题翻译：静态动力密封组件与滞后诱导通道
公开(公告)号：WO2012087945A1
公开(公告)日：2012-06-28
申请号：PCT/US2011/065867
申请日：2011-12-19
申请人： AKTIEBOLAGET SKF , EPSHETSKY, Yefim , ROSAUER, Matthew, Peter
发明人： EPSHETSKY, Yefim , ROSAUER, Matthew, Peter
IPC分类号： F16J15/16
CPC分类号： F16J15/164 , F16J15/44
摘要： A seal assembly is for sealing a clearance space about a shaft, the shaft being rotatable about a central axis, and includes a generally annular sealing member disposed about the shaft. The sealing member is radially deflectable between an inner position and an outer position, the sealing member sealing the clearance space when located at the inner position. A generally annular rotor is disposed about and rotatably coupled with the shaft, the rotor having a generally annular cavity sized to receive the sealing member and at least one and preferably a plurality of lift passages extending at least partially radially through the rotor. Each lift passage has an inner port fluidly coupled with the cavity and an outer port fluidly coupled with an exterior atmosphere such that suction generated within the lift passages when the rotor angularly displaces about the axis generally retains the sealing member at the outer position.
摘要翻译：密封组件用于密封围绕轴的间隙空间，所述轴可围绕中心轴线旋转，并且包括围绕轴布置的大致环形的密封构件。密封构件在内部位置和外部位置之间可径向偏转，密封构件在位于内部位置时密封间隙空间。大致环形的转子绕轴设置并且可旋转地联接，转子具有大体上环形的空腔，其尺寸被设计成容纳密封构件以及至少一个并且优选地至少部分径向延伸穿过转子的提升通道。每个提升通道具有与空腔流体耦合的内部端口和与外部空气流体耦合的外部端口，使得当转子围绕轴线成角位移时在提升通道内产生的抽吸通常将密封构件保持在外部位置。

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