JPS6483976A - Magnetic fluid seal device - Google Patents
Magnetic fluid seal deviceInfo
- Publication number
- JPS6483976A JPS6483976A JP62241732A JP24173287A JPS6483976A JP S6483976 A JPS6483976 A JP S6483976A JP 62241732 A JP62241732 A JP 62241732A JP 24173287 A JP24173287 A JP 24173287A JP S6483976 A JPS6483976 A JP S6483976A
- Authority
- JP
- Japan
- Prior art keywords
- pole pieces
- magnetic
- magnetic fluid
- oily liquid
- impregnated
- 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
PURPOSE:To enable sealing performance to be maintained for a long period of time by providing magnetic fluid between a shaft and pole pieces, and by so constituting that the pole pieces are made of a porous magnetic material and are impregnated with oily liquid of magnetic fluid. CONSTITUTION:The magnetic flux produced by a permanent magnet 1 constitutes a magnetic circuit passing through one side of pole pieces 2, a rotating body 7, the other side of the pole pieces 2, and the permanent magnet 1, and a magnetic fluid 3 having been composed by mixing magnetic powder into liquid such as ether oil and hydrocarbon oil is arranged between the rotating body 7 and pole pieces 2 so as to be trapped by magnetic flux, so that the rotating shaft can be perfectly sealed. And, the pole pieces 2 are made up of a porous magnetic material, into which oily liquid of the magnetic fluid 3 is impregnated so as to enable the replenishment of oily liquid. Thus, while the oily liquid of magnetic fluid 3 decreases during long use, it permeates through the pole pieces 2, enabling sealing performance to be maintained for a long period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62241732A JPS6483976A (en) | 1987-09-25 | 1987-09-25 | Magnetic fluid seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62241732A JPS6483976A (en) | 1987-09-25 | 1987-09-25 | Magnetic fluid seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6483976A true JPS6483976A (en) | 1989-03-29 |
Family
ID=17078715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62241732A Pending JPS6483976A (en) | 1987-09-25 | 1987-09-25 | Magnetic fluid seal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6483976A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6196258B1 (en) | 1998-04-16 | 2001-03-06 | Calsonic Corporation | Pressure control valve and evaporation fuel discharge control device |
| KR100680303B1 (en) * | 2005-01-12 | 2007-02-07 | (주)동보 | Damper for delivery pipe of fuel system of vehicle |
| WO2012105301A1 (en) * | 2011-02-03 | 2012-08-09 | イーグル工業株式会社 | Magnetic fluid seal |
| JP2014207822A (en) * | 2013-04-15 | 2014-10-30 | イーグル工業株式会社 | Conductive structure |
| CN105972218A (en) * | 2016-05-25 | 2016-09-28 | 广西科技大学 | End surface type magnetic fluid sealing device |
| CN113154046A (en) * | 2021-04-26 | 2021-07-23 | 清华大学 | Magnetic liquid self-supplementing magnetic liquid sealing device |
-
1987
- 1987-09-25 JP JP62241732A patent/JPS6483976A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6353955B2 (en) | 1998-04-16 | 2002-03-12 | Calsonic Kansei Corporation | Pressure control valve and evaporation fuel discharge control device |
| US6196258B1 (en) | 1998-04-16 | 2001-03-06 | Calsonic Corporation | Pressure control valve and evaporation fuel discharge control device |
| KR100680303B1 (en) * | 2005-01-12 | 2007-02-07 | (주)동보 | Damper for delivery pipe of fuel system of vehicle |
| TWI555933B (en) * | 2011-02-03 | 2016-11-01 | 伊格爾工業股份有限公司 | Magnetic fluid seal |
| WO2012105301A1 (en) * | 2011-02-03 | 2012-08-09 | イーグル工業株式会社 | Magnetic fluid seal |
| CN103314241A (en) * | 2011-02-03 | 2013-09-18 | 伊格尔工业股份有限公司 | Magnetic fluid seal |
| JPWO2012105301A1 (en) * | 2011-02-03 | 2014-07-03 | イーグル工業株式会社 | Magnetic fluid seal |
| JP5806241B2 (en) * | 2011-02-03 | 2015-11-10 | イーグル工業株式会社 | Magnetic fluid seal |
| US9360118B2 (en) | 2011-02-03 | 2016-06-07 | Eagle Industry Co., Ltd. | Magnetic fluid seal |
| JP2014207822A (en) * | 2013-04-15 | 2014-10-30 | イーグル工業株式会社 | Conductive structure |
| CN105972218A (en) * | 2016-05-25 | 2016-09-28 | 广西科技大学 | End surface type magnetic fluid sealing device |
| CN105972218B (en) * | 2016-05-25 | 2018-06-08 | 广西科技大学 | A kind of end-surface type magnetic fluid seal device |
| CN113154046A (en) * | 2021-04-26 | 2021-07-23 | 清华大学 | Magnetic liquid self-supplementing magnetic liquid sealing device |
| CN113154046B (en) * | 2021-04-26 | 2022-07-05 | 清华大学 | Magnetic liquid self-supplementing magnetic liquid sealing device |
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