公开(公告)号：US4681328A

公开(公告)日：1987-07-21

申请号：US927367

申请日：1986-11-06

申请人： Klaus Ritter ,  Klaus Michaelsen ,  Gunther Mair

发明人： Klaus Ritter ,  Klaus Michaelsen ,  Gunther Mair

IPC分类号： F16J15/40 ,  F16J15/43

CPC分类号： F16J15/40 ,  F16J15/43

摘要： A shaft seal containing magnetic liquid, for pump shafts or the like, consists of a permanent magnet which surrounds the shaft and is a distance away and one or more pole pieces connected to the said magnet. The pole piece, together with the shaft surface, forms an air gap in which the magnetic liquid is held by the magnetic field, so that a liquid sealing ring is produced. A volume of gas located between the magnetic liquid seal and the shaft channel to the medium prevents the magnetic liquid from coming into contact with the medium.

摘要翻译： 包含用于泵轴等的磁性液体的轴封包括围绕轴并且距离的永磁体和与所述磁体连接的一个或多个极片。 极片与轴表面一起形成气隙，通过磁场保持磁性液体，从而产生液体密封环。 位于介质的磁性液体密封件和轴通道之间的气体体积可防止磁性液体与介质接触。