发明授权
- 专利标题： Sealing and bearing means by use of ferrofluid
- 专利标题（中）： 密封和轴承方式使用铁磁流体
-
申请号： US625046申请日： 1984-06-27
-
公开(公告)号： US4598914A公开(公告)日： 1986-07-08
- 发明人: Kyozaburo Furumura , Hiromi Sugi , Yasuo Murakami , Hiromitsu Asai
- 申请人： Kyozaburo Furumura , Hiromi Sugi , Yasuo Murakami , Hiromitsu Asai
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Seiko K.K.
- 当前专利权人： Nippon Seiko K.K.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX57-18840 19820210; JPX57-18841 19820210; JPX57-18842 19820210
- 主分类号： F16C33/10
- IPC分类号： F16C33/10 ; F16J15/43 ; G11B19/20 ; F16J15/40 ; F16C33/82 ; F16J15/54
摘要：
Sealing and bearing means by use of ferrofluid, in which a magnet is utilized effectively in cooperation with grooves engraved on one surface thereof, the grooves having the function for generating the dynamic pressure of the ferrofluid. The ferrofluid is retained in a gap between a rotary shaft and a magnet of cylindrical or disc type enclosing the rotary shaft concentrically. The magnet performs excellent two functions of bearing and sealing respectively.
公开/授权文献
信息查询
