发明名称 Magnetic liquid shaft sealing
摘要 A magnetic liquid seal comprises a single axially magnetized permanent magnet in the shape of a flat washer having magnetic liquid captured on the inside or outside diameters, or both. Leakproof sealing is achieved between either the outside diameter and an external housing or between the inner diameter and an external shaft.
申请公布号 US4293137(A) 申请公布日期 1981.10.06
申请号 US19780968370 申请日期 1978.12.11
申请人 EZEKIEL, FREDERICK D. 发明人 EZEKIEL, FREDERICK D.
分类号 F16C33/76;F16C33/78;F16J15/43;(IPC1-7):F16J15/16;F16J15/40 主分类号 F16C33/76
代理机构 代理人
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