JPH0276268U - - Google Patents
Info
- Publication number
- JPH0276268U JPH0276268U JP15623188U JP15623188U JPH0276268U JP H0276268 U JPH0276268 U JP H0276268U JP 15623188 U JP15623188 U JP 15623188U JP 15623188 U JP15623188 U JP 15623188U JP H0276268 U JPH0276268 U JP H0276268U
- Authority
- JP
- Japan
- Prior art keywords
- ventilation hole
- magnetic
- magnetic fluid
- pole pieces
- force source
- 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
- 239000011553 magnetic fluid Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims 4
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図は本考案の磁性流体シール装置の第１実
施例を示し、イは磁性流体シール装置の平面図、
ロは縦断面図、ハは正面図、第２図は、本考案の
磁性流体シール装置の第２実施例の縦断面図、第
３図は、従来技術の磁性流体シール装置を示し、
イは正面図、ロは縦断面図である。
符号の説明、１……磁性流体シール装置、２…
…軸、３……環状磁力源、４……気体通路、５…
…調圧弁室、６……調圧弁、７……ヨーク、８…
…孔、９……微小間隙、１０……磁性流体。
FIG. 1 shows a first embodiment of the magnetic fluid sealing device of the present invention, and A is a plan view of the magnetic fluid sealing device;
B is a longitudinal sectional view, C is a front view, FIG. 2 is a longitudinal sectional view of a second embodiment of the magnetic fluid sealing device of the present invention, and FIG. 3 is a conventional magnetic fluid sealing device,
A is a front view, and B is a longitudinal sectional view. Explanation of symbols, 1...Magnetic fluid seal device, 2...
...Axis, 3...Annular magnetic force source, 4...Gas passage, 5...
...Pressure regulating valve chamber, 6...Pressure regulating valve, 7...Yoke, 8...
...hole, 9...micro gap, 10...magnetic fluid.
Claims (1)
り付けられた一対の磁極片と、磁極片と軸の間の
微小間隙に磁性流体を配置した磁性流体シール装
置において、一対の磁極片の側面に通気孔を設け
、環状磁力源の内部に前記通気孔を連通させる空
気通路を設け、前記通気孔に調圧弁を設けたこと
を特徴とする磁性流体シール装置。 (2) 前記調圧弁は、板バネと、板バネの先端に
取り付けられ通気孔を開閉するゴム状弾性体とか
らなることを特徴とする請求項１記載の磁性流体
シール装置。[Claims for Utility Model Registration] (1) A magnetic fluid comprising an annular magnetic force source, a pair of magnetic pole pieces attached to both sides of the annular magnetic force source, and a magnetic fluid arranged in a minute gap between the magnetic pole pieces and the shaft. A magnetic fluid seal characterized in that the sealing device is provided with a ventilation hole on the side surface of the pair of magnetic pole pieces, an air passage communicating with the ventilation hole is provided inside the annular magnetic force source, and a pressure regulating valve is provided in the ventilation hole. Device. (2) The magnetic fluid seal device according to claim 1, wherein the pressure regulating valve comprises a leaf spring and a rubber-like elastic body attached to the tip of the leaf spring to open and close the ventilation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15623188U JPH0276268U (en) | 1988-11-30 | 1988-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15623188U JPH0276268U (en) | 1988-11-30 | 1988-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0276268U true JPH0276268U (en) | 1990-06-12 |
Family
ID=31434587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15623188U Pending JPH0276268U (en) | 1988-11-30 | 1988-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0276268U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5430347A (en) * | 1977-08-10 | 1979-03-06 | Fuji Electric Co Ltd | Magnetic fluid sealing equipment |
| JPS5828159B1 (en) * | 1971-02-23 | 1983-06-14 | Outboard Marine Corp |
-
1988
- 1988-11-30 JP JP15623188U patent/JPH0276268U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5828159B1 (en) * | 1971-02-23 | 1983-06-14 | Outboard Marine Corp | |
| JPS5430347A (en) * | 1977-08-10 | 1979-03-06 | Fuji Electric Co Ltd | Magnetic fluid sealing equipment |
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