JPH0194668U - - Google Patents

Info

Publication number
JPH0194668U
JPH0194668U JP14301187U JP14301187U JPH0194668U JP H0194668 U JPH0194668 U JP H0194668U JP 14301187 U JP14301187 U JP 14301187U JP 14301187 U JP14301187 U JP 14301187U JP H0194668 U JPH0194668 U JP H0194668U
Authority
JP
Japan
Prior art keywords
pole piece
inner diameter
permanent magnet
magnetic fluid
sealing device
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
Application number
JP14301187U
Other languages
English (en)
Other versions
JPH0643582Y2 (ja
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 filed Critical
Priority to JP1987143011U priority Critical patent/JPH0643582Y2/ja
Publication of JPH0194668U publication Critical patent/JPH0194668U/ja
Application granted granted Critical
Publication of JPH0643582Y2 publication Critical patent/JPH0643582Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Description

【図面の簡単な説明】
第1図、第2図及び第3図は従来の例を示す断
面図、第4図、第5図及び第6図は夫々本考案の
一実施例を示す断面図である。 11…永久磁石、12…ポールピース、13…
磁性流体、14…回転軸。

Claims (1)

  1. 【実用新案登録請求の範囲】 半径方向に磁化された環状永久磁石と、該外径
    部及び該片側平面部を覆つた半断面L字型の軟磁
    性体ポールピースリングと、該永久磁石及び該ポ
    ールピースの夫々の内径を貫く強磁性シヤフトと
    、該シヤフト外径と該永久磁石内径及び該ポール
    ピース内径との空隙に磁気的に捕捉される磁性流
    体リング膜とから構成された磁性流体シール装置
    において、 該永久磁石と該ポールピースとが対向・接合し
    形成される内周面部の内径が対向してない該永久
    磁石及び該ポールピースの内周面部の内径よりも
    常に大きくなるように該永久磁石及び該ポールピ
    ースの夫々の内径部に傾斜を持たせたことを特徴
    とする磁性流体シール装置。
JP1987143011U 1987-09-21 1987-09-21 磁性流体シール装置 Expired - Lifetime JPH0643582Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987143011U JPH0643582Y2 (ja) 1987-09-21 1987-09-21 磁性流体シール装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987143011U JPH0643582Y2 (ja) 1987-09-21 1987-09-21 磁性流体シール装置

Publications (2)

Publication Number Publication Date
JPH0194668U true JPH0194668U (ja) 1989-06-22
JPH0643582Y2 JPH0643582Y2 (ja) 1994-11-14

Family

ID=31409448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987143011U Expired - Lifetime JPH0643582Y2 (ja) 1987-09-21 1987-09-21 磁性流体シール装置

Country Status (1)

Country Link
JP (1) JPH0643582Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0391577U (ja) * 1989-12-28 1991-09-18

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6165967A (ja) * 1984-09-06 1986-04-04 Nippon Seiko Kk 磁性流体シ−ル構造
JPS62155327A (ja) * 1985-12-26 1987-07-10 Matsushita Electric Ind Co Ltd 回転軸の軸受装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6165967A (ja) * 1984-09-06 1986-04-04 Nippon Seiko Kk 磁性流体シ−ル構造
JPS62155327A (ja) * 1985-12-26 1987-07-10 Matsushita Electric Ind Co Ltd 回転軸の軸受装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0391577U (ja) * 1989-12-28 1991-09-18

Also Published As

Publication number Publication date
JPH0643582Y2 (ja) 1994-11-14

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