JPS6446069A - Magnetic fluid seal device - Google Patents
Magnetic fluid seal deviceInfo
- Publication number
- JPS6446069A JPS6446069A JP62201489A JP20148987A JPS6446069A JP S6446069 A JPS6446069 A JP S6446069A JP 62201489 A JP62201489 A JP 62201489A JP 20148987 A JP20148987 A JP 20148987A JP S6446069 A JPS6446069 A JP S6446069A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- fluid
- housing
- magnetic fluid
- ball
- 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.)
- Granted
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
Abstract
PURPOSE:To prevent reduction in magnetic fluid, enable cooling, and improve manufacturing and assembling properties by bonding spacers to the outside side faces of ball pieces on both ends and removably providing a jacket in which a cooling chamber is formed on the outer periphery of a non-magnetic housing. CONSTITUTION:The captioned device seals the part between the air side A and a vacuum side B by means of a magnetic fluid which is magnetically caught in between first magnetic disks 71a, 72a and the large diameter part 2b of a magnetic shaft 2. Since the catching parts of the magnetic fluid 14 are formed in spaces 111-113, the fluid 14 is pooled in the spaces 111-113. Also, when viscous heat generation is increased due to rise in the rotating speed of the shaft 2 and the like, a jacket 15 is installed and a cooling fluid circulated in a cooling chamber 16 to cool ball pieces 71, 72. The device can further be assembled merely by installing a bearing 51, the bonded body of a spacer 91 and the ball piece 71, a permanent magnet 8, the bonded body of the ball piece 72 and a spacer 92, and a bearing 52 in order into a housing room 4 and by installing a housing cover 1b on a housing body 1a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62201489A JPS6446069A (en) | 1987-08-12 | 1987-08-12 | Magnetic fluid seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62201489A JPS6446069A (en) | 1987-08-12 | 1987-08-12 | Magnetic fluid seal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6446069A true JPS6446069A (en) | 1989-02-20 |
| JPH0570034B2 JPH0570034B2 (en) | 1993-10-04 |
Family
ID=16441906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62201489A Granted JPS6446069A (en) | 1987-08-12 | 1987-08-12 | Magnetic fluid seal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6446069A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016183776A (en) * | 2015-03-25 | 2016-10-20 | イーグル工業株式会社 | High peripheral speed magnetic fluid seal structure |
| CN113639044A (en) * | 2021-08-02 | 2021-11-12 | 清华大学 | Magnetic liquid sealing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519853A (en) * | 1974-07-03 | 1976-01-26 | Suwa Seikosha Kk | EKISHOHAIKOYOSUMAKUNIOKERU BUNSHIHOKONO KET SUTEIHOHO |
| JPS6277370U (en) * | 1985-11-01 | 1987-05-18 |
-
1987
- 1987-08-12 JP JP62201489A patent/JPS6446069A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519853A (en) * | 1974-07-03 | 1976-01-26 | Suwa Seikosha Kk | EKISHOHAIKOYOSUMAKUNIOKERU BUNSHIHOKONO KET SUTEIHOHO |
| JPS6277370U (en) * | 1985-11-01 | 1987-05-18 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016183776A (en) * | 2015-03-25 | 2016-10-20 | イーグル工業株式会社 | High peripheral speed magnetic fluid seal structure |
| CN113639044A (en) * | 2021-08-02 | 2021-11-12 | 清华大学 | Magnetic liquid sealing device |
| CN113639044B (en) * | 2021-08-02 | 2022-07-01 | 清华大学 | Magnetic liquid sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0570034B2 (en) | 1993-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR880005723A (en) | Stator housing and rotor of small motor | |
| US3475630A (en) | Synchronous motor with permanent magnet rotor | |
| FR2452782B1 (en) | ||
| JPS6446069A (en) | Magnetic fluid seal device | |
| JPH0368238B2 (en) | ||
| JPH0611171B2 (en) | Electric motor equipped with holding brake | |
| JPS6483920A (en) | Magnetic fluid bearing device | |
| JPS6231776A (en) | Magnetic-fluid sealing device | |
| JPS6060330A (en) | Bearing assembly with integral magnetic fluid seal | |
| GB1433748A (en) | Magnetic induction couplings | |
| JPS57154516A (en) | Bearing device for rapidly rotating body | |
| CN215934687U (en) | Do benefit to radiating permanent magnet brushless motor | |
| JPS5637493A (en) | Heat transfer device | |
| JP2522995B2 (en) | Magnetic fluid seal device | |
| JPS58104873U (en) | refrigerator | |
| JPS6152135A (en) | Fitting mechanism for brake for miniature servo-motor | |
| JPH03229987A (en) | Clean pump | |
| JPS6467760A (en) | Spindle motor for disk drive | |
| JPH02130787A (en) | Magnetic disk device | |
| JP2822181B2 (en) | Spindle motor | |
| SU954688A1 (en) | Magnetic-liquid sealing | |
| GB1287145A (en) | Rotary magnetic machine | |
| JP2892143B2 (en) | Magnetic disk drive | |
| JP2501847Y2 (en) | refrigerator | |
| JPH0723613Y2 (en) | Bearing device |