JPS5530562A - Magnetic fluid feeder - Google Patents
Magnetic fluid feederInfo
- Publication number
- JPS5530562A JPS5530562A JP10367578A JP10367578A JPS5530562A JP S5530562 A JPS5530562 A JP S5530562A JP 10367578 A JP10367578 A JP 10367578A JP 10367578 A JP10367578 A JP 10367578A JP S5530562 A JPS5530562 A JP S5530562A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic fluid
- shaft
- yokes
- porous ring
- porous
- 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
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
PURPOSE:To produce a magnetic fluid sealing effect without the special injection of a magnetic fluid, by providing a porous member between the facing sides of yokes and impregnating the member with the magnetic fluid. CONSTITUTION:The porous ring 6 is provided between the facing sides of the annular yokes 2. The magnetic fluid is impregnated in the porous ring 6. A closed magnetic circit consists of permanent magnets 1, the annular yokes 2 and a shaft 4. Since the density of leakage flux increases toward small gaps between the shaft 4 and the annular yokes 2, the magnetic fluid retained in the porous ring 6 oozes into the small gaps and fills it. The shaft is thus completely sealed up.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10367578A JPS5530562A (en) | 1978-08-25 | 1978-08-25 | Magnetic fluid feeder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10367578A JPS5530562A (en) | 1978-08-25 | 1978-08-25 | Magnetic fluid feeder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5530562A true JPS5530562A (en) | 1980-03-04 |
Family
ID=14360359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10367578A Pending JPS5530562A (en) | 1978-08-25 | 1978-08-25 | Magnetic fluid feeder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5530562A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5554765A (en) * | 1978-10-13 | 1980-04-22 | Matsushita Electric Ind Co Ltd | Magnetic seal device |
JPS55139559A (en) * | 1979-04-12 | 1980-10-31 | Nok Corp | Sealing-up device |
JPS57208358A (en) * | 1981-06-15 | 1982-12-21 | Rigaku Denki Kk | Shaft sealing device using magnetic fluid |
JPS5861366A (en) * | 1981-10-05 | 1983-04-12 | Nippon Telegr & Teleph Corp <Ntt> | Shaft seal device |
JPS58131474A (en) * | 1982-01-29 | 1983-08-05 | Tohoku Metal Ind Ltd | Sealing device |
JPS63162181U (en) * | 1987-04-14 | 1988-10-24 | ||
JPS63275858A (en) * | 1987-04-30 | 1988-11-14 | Nisshin Shisetsu Kogyo Kk | Liquid seal device employing magnetic fluid |
CN108825790A (en) * | 2018-08-13 | 2018-11-16 | 广西科技大学 | A kind of magnetic source increment type magnetic fluid sealing structure |
JP7138387B1 (en) * | 2021-04-26 | 2022-09-16 | ツィンファ ユニバーシティ | Magnetic fluid self-refilling type magnetic fluid sealing device |
-
1978
- 1978-08-25 JP JP10367578A patent/JPS5530562A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5554765A (en) * | 1978-10-13 | 1980-04-22 | Matsushita Electric Ind Co Ltd | Magnetic seal device |
JPS6234990B2 (en) * | 1978-10-13 | 1987-07-30 | Matsushita Electric Ind Co Ltd | |
JPS55139559A (en) * | 1979-04-12 | 1980-10-31 | Nok Corp | Sealing-up device |
JPS57208358A (en) * | 1981-06-15 | 1982-12-21 | Rigaku Denki Kk | Shaft sealing device using magnetic fluid |
JPS6143588B2 (en) * | 1981-06-15 | 1986-09-29 | Rigaku Denki Co Ltd | |
JPS5861366A (en) * | 1981-10-05 | 1983-04-12 | Nippon Telegr & Teleph Corp <Ntt> | Shaft seal device |
JPS58131474A (en) * | 1982-01-29 | 1983-08-05 | Tohoku Metal Ind Ltd | Sealing device |
JPH0361072B2 (en) * | 1982-01-29 | 1991-09-18 | Tokin Corp | |
JPS63162181U (en) * | 1987-04-14 | 1988-10-24 | ||
JPS63275858A (en) * | 1987-04-30 | 1988-11-14 | Nisshin Shisetsu Kogyo Kk | Liquid seal device employing magnetic fluid |
CN108825790A (en) * | 2018-08-13 | 2018-11-16 | 广西科技大学 | A kind of magnetic source increment type magnetic fluid sealing structure |
JP7138387B1 (en) * | 2021-04-26 | 2022-09-16 | ツィンファ ユニバーシティ | Magnetic fluid self-refilling type magnetic fluid sealing device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3375501D1 (en) | Ferrofluid seal apparatus and method of providing same | |
JPS5530562A (en) | Magnetic fluid feeder | |
JPS5733222A (en) | Sealed antifriction bearing | |
JPS5712167A (en) | Magnetic fluid sealing device | |
JPS51136108A (en) | Magnetic pole construction | |
JPS543292A (en) | Powder shaped magnet | |
JPS6483976A (en) | Magnetic fluid seal device | |
JPS55135269A (en) | Sealing device | |
JPS5642766A (en) | Magnetic fluid supplier | |
JPS5324530A (en) | Transformer of electric current source | |
JPS5273314A (en) | Rotor of magneto and its preparation | |
JPS57137740A (en) | Flywheel | |
JPS54156107A (en) | Method of assembling stators of permanent magnet motors | |
JPS5583446A (en) | Magnet rotor | |
JPS55103161A (en) | Shaft seal | |
CH638652B (en) | STEP-BY-STEP MOTOR WITH ROTOR POSITIONING MAGNET. | |
JPS5698760A (en) | Magnetic disk device | |
GB1504159A (en) | Core plate for transformers | |
JPS53120787A (en) | Weld jointing of magnet gaskets | |
JPS5723206A (en) | Magnetic shielding material | |
JPS53131369A (en) | Negative pressure controlling apparatus | |
JPS52165A (en) | Magnetron | |
JPS5362051A (en) | Magnetic bearing | |
JPS56168499A (en) | Structure of electomagnetic sound generator | |
JPS56125979A (en) | Device for preserving permanent magnetism as power source for deri-motor at third article |