发明名称 |
Magnetic fluid sealing device |
摘要 |
A magnetic fluid sealing device is provided for sealing a gap between a first member and a second member movable relative to each other. The device has a magnetic fluid and a magnet for retaining the magnetic fluid in the gap. A two-dimensionally bonded monomolecular layer is formed as an oil-repelling layer from a coupling agent on at least an intermediate surface area of at least one of the first and second members, which intermediate surface area is located between a fluid-deposited surface area and a fluid-free surface area.
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申请公布号 |
US5215313(A) |
申请公布日期 |
1993.06.01 |
申请号 |
US19910780687 |
申请日期 |
1991.10.21 |
申请人 |
NSK, LTD. |
发明人 |
YOKOUCHI, ATSUSHI;MATSUNAGA, SHIGEKI |
分类号 |
F16J15/43;G11B19/20;G11B33/14 |
主分类号 |
F16J15/43 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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