JPH0629566Y2 - 多段型磁性流体シール装置 - Google Patents

多段型磁性流体シール装置

Info

Publication number
JPH0629566Y2
JPH0629566Y2 JP1986197468U JP19746886U JPH0629566Y2 JP H0629566 Y2 JPH0629566 Y2 JP H0629566Y2 JP 1986197468 U JP1986197468 U JP 1986197468U JP 19746886 U JP19746886 U JP 19746886U JP H0629566 Y2 JPH0629566 Y2 JP H0629566Y2
Authority
JP
Japan
Prior art keywords
permanent magnet
pole piece
flat surface
magnetic fluid
inner diameter
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.)
Expired - Lifetime
Application number
JP1986197468U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63103062U (US20050065096A1-20050324-C00069.png
Inventor
博 中里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokin Corp
Original Assignee
Tokin Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tokin Corp filed Critical Tokin Corp
Priority to JP1986197468U priority Critical patent/JPH0629566Y2/ja
Priority to DE19873790869 priority patent/DE3790869T/de
Priority to PCT/JP1987/000055 priority patent/WO1988005142A1/ja
Publication of JPS63103062U publication Critical patent/JPS63103062U/ja
Application granted granted Critical
Publication of JPH0629566Y2 publication Critical patent/JPH0629566Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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)
JP1986197468U 1986-12-24 1986-12-24 多段型磁性流体シール装置 Expired - Lifetime JPH0629566Y2 (ja)

Priority Applications (3)

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
DE19873790869 DE3790869T (US20050065096A1-20050324-C00069.png) 1986-12-24 1987-01-27
PCT/JP1987/000055 WO1988005142A1 (en) 1986-12-24 1987-01-27 Magnetic fluid sealing device

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 (2)

Publication Number Publication Date
JPS63103062U JPS63103062U (US20050065096A1-20050324-C00069.png) 1988-07-04
JPH0629566Y2 true JPH0629566Y2 (ja) 1994-08-10

Family

ID=16374992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986197468U Expired - Lifetime JPH0629566Y2 (ja) 1986-12-24 1986-12-24 多段型磁性流体シール装置

Country Status (3)

Country Link
JP (1) JPH0629566Y2 (US20050065096A1-20050324-C00069.png)
DE (1) DE3790869T (US20050065096A1-20050324-C00069.png)
WO (1) WO1988005142A1 (US20050065096A1-20050324-C00069.png)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
WO1988005142A1 (en) 1988-07-14
DE3790869T (US20050065096A1-20050324-C00069.png) 1988-11-17
JPS63103062U (US20050065096A1-20050324-C00069.png) 1988-07-04

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