DE3790869T - - Google Patents
Info
- Publication number
- DE3790869T DE3790869T DE19873790869 DE3790869A DE3790869T DE 3790869 T DE3790869 T DE 3790869T DE 19873790869 DE19873790869 DE 19873790869 DE 3790869 A DE3790869 A DE 3790869A DE 3790869 T DE3790869 T DE 3790869T
- Authority
- DE
- Germany
- 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.)
- Withdrawn
Links
Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1446—Reducing contamination, e.g. by dust, debris
- G11B33/1473—Reducing contamination, e.g. by dust, debris of/from bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986197468U JPH0629566Y2 (ja) | 1986-12-24 | 1986-12-24 | 多段型磁性流体シール装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3790869T true DE3790869T (xx) | 1988-11-17 |
Family
ID=16374992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873790869 Withdrawn DE3790869T (xx) | 1986-12-24 | 1987-01-27 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPH0629566Y2 (xx) |
DE (1) | DE3790869T (xx) |
WO (1) | WO1988005142A1 (xx) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105972218B (zh) * | 2016-05-25 | 2018-06-08 | 广西科技大学 | 一种端面式磁性流体密封装置 |
CN110762224A (zh) * | 2019-11-25 | 2020-02-07 | 广西科技大学 | 一种发散型对开齿阶梯式磁流体旋转密封装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5865373A (ja) * | 1981-10-14 | 1983-04-19 | Kiichi Taga | 磁性粒子を混ぜた粘性流体による軸シ−ルパツキング方式 |
JPS58131474A (ja) * | 1982-01-29 | 1983-08-05 | Tohoku Metal Ind Ltd | 密封装置 |
US4527805A (en) * | 1984-05-03 | 1985-07-09 | Ferrofluidics Corporation | High-pressure ferrofluid seal apparatus |
-
1986
- 1986-12-24 JP JP1986197468U patent/JPH0629566Y2/ja not_active Expired - Lifetime
-
1987
- 1987-01-27 DE DE19873790869 patent/DE3790869T/de not_active Withdrawn
- 1987-01-27 WO PCT/JP1987/000055 patent/WO1988005142A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JPH0629566Y2 (ja) | 1994-08-10 |
WO1988005142A1 (en) | 1988-07-14 |
JPS63103062U (xx) | 1988-07-04 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8180 | Miscellaneous part 1 |
Free format text: TOUHOKU- KINZOKU-KOUGYO LTD., SENDAI, JP |
|
8110 | Request for examination paragraph 44 | ||
8130 | Withdrawal |