JPS5891063U - Magnetic fluid seal device - Google Patents
Magnetic fluid seal deviceInfo
- Publication number
- JPS5891063U JPS5891063U JP18721981U JP18721981U JPS5891063U JP S5891063 U JPS5891063 U JP S5891063U JP 18721981 U JP18721981 U JP 18721981U JP 18721981 U JP18721981 U JP 18721981U JP S5891063 U JPS5891063 U JP S5891063U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic fluid
- annular
- seal device
- fluid seal
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は磁性流体シール装置の縦断面図、第２図は第１
図の×−×矢視断面図、゛第３図は磁石と環状ポールブ
ロックとの斜視図、第４図は普通の磁石の減磁曲線、第
５図は希土類コバルト磁石の減磁曲線である。
３：回転軸、４：環状ポールブロック、７：環状微小突
起、１０：磁性流体。Figure 1 is a longitudinal cross-sectional view of the magnetic fluid seal device, and Figure 2 is a vertical cross-sectional view of the magnetic fluid seal device.
3 is a perspective view of the magnet and the annular pole block, 4 is the demagnetization curve of an ordinary magnet, and 5 is the demagnetization curve of a rare earth cobalt magnet. . 3: rotation axis, 4: annular pole block, 7: annular microprotrusion, 10: magnetic fluid.
Claims (1)
久磁石を橋架し、前記環状ポールブロック内周面と前記
回転軸外周面とのうちいずれか一方に複数条の環状微小
突起を設け、この環状微小突起と対向する面との間に磁
性流体を介在せしめるものにおいて、前記永久磁石には
希土類コバルト磁石を用いたことを特徴とする磁性流体
シール装置。A permanent magnet is bridged between a pair of annular pole blocks surrounding the outer periphery of the rotating shaft, and a plurality of annular microprotrusions are provided on either the inner circumferential surface of the annular pole block or the outer circumferential surface of the rotating shaft. 1. A magnetic fluid sealing device in which a magnetic fluid is interposed between an annular microprotrusion and an opposing surface, characterized in that a rare earth cobalt magnet is used as the permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18721981U JPS5891063U (en) | 1981-12-16 | 1981-12-16 | Magnetic fluid seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18721981U JPS5891063U (en) | 1981-12-16 | 1981-12-16 | Magnetic fluid seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5891063U true JPS5891063U (en) | 1983-06-20 |
Family
ID=29989840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18721981U Pending JPS5891063U (en) | 1981-12-16 | 1981-12-16 | Magnetic fluid seal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5891063U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5365203A (en) * | 1976-11-25 | 1978-06-10 | Nippon Koyu Kk | Method and structure for palette air seal of straight band type sintering apparatus |
| JPS55145851A (en) * | 1979-04-26 | 1980-11-13 | Ferrofluidics Corp | Automatic acting magnetic fluid seal |
-
1981
- 1981-12-16 JP JP18721981U patent/JPS5891063U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5365203A (en) * | 1976-11-25 | 1978-06-10 | Nippon Koyu Kk | Method and structure for palette air seal of straight band type sintering apparatus |
| JPS55145851A (en) * | 1979-04-26 | 1980-11-13 | Ferrofluidics Corp | Automatic acting magnetic fluid seal |
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