JPS6159964U - - Google Patents

Info

Publication number
JPS6159964U
JPS6159964U JP14492584U JP14492584U JPS6159964U JP S6159964 U JPS6159964 U JP S6159964U JP 14492584 U JP14492584 U JP 14492584U JP 14492584 U JP14492584 U JP 14492584U JP S6159964 U JPS6159964 U JP S6159964U
Authority
JP
Japan
Prior art keywords
permanent magnet
magnetic fluid
shaft
sealing device
magnetic
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
Application number
JP14492584U
Other languages
English (en)
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 JP14492584U priority Critical patent/JPS6159964U/ja
Publication of JPS6159964U publication Critical patent/JPS6159964U/ja
Pending 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図は本考案に係る磁性流体シール装置の第
一実施例を示す縦断面図、第2図は同磁性流体シ
ール装置の第二実施例を示す縦断面図、第3図は
同磁性流体シール装置の第三実施例を示す縦断面
図、第4図は従来の磁性流体シール装置を示す縦
断面図である。 符号の説明、1…磁性流体シール装置、2…軸
、3,13…永久磁石、4…磁性流体、6,12
…軸の外周面、7…環状突起、8,14…永久磁
石の内周面、9…微小間隙、H…ハウジング。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 軸を囲み、該軸と相対回転するハウジング
    の内周に、軸方向に互いに離隔して配置された複
    数の磁極を有する単一の円筒状永久磁石を固着し
    、前記軸の外周面及び前記永久磁石の内周面の少
    なくとも一方に、前記永久磁石の各磁極に対応す
    る位置に複数の環状突起を突設してそれらの間に
    微小間隙を形成し、前記微小間隙に磁性流体を介
    在させたことを特徴とする磁性流体シール装置。 (2) 前記軸が、外周面に複数条の環状突起を有
    するスリーブを備えていることを特徴とする実用
    新案登録請求の範囲第1項記載の磁性流体シール
    装置。 (3) 前記永久磁石がプラスチツク磁石からなる
    ことを特徴とする実用新案登録請求の範囲第1項
    又は第2項記載の磁性流体シール装置。 (4) 前記永久磁石がゴム磁石からなることを特
    徴とする実用新案登録請求の範囲第1項又は第2
    項記載の磁性流体シール装置。
JP14492584U 1984-09-27 1984-09-27 Pending JPS6159964U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14492584U JPS6159964U (ja) 1984-09-27 1984-09-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14492584U JPS6159964U (ja) 1984-09-27 1984-09-27

Publications (1)

Publication Number Publication Date
JPS6159964U true JPS6159964U (ja) 1986-04-22

Family

ID=30703186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14492584U Pending JPS6159964U (ja) 1984-09-27 1984-09-27

Country Status (1)

Country Link
JP (1) JPS6159964U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01132879U (ja) * 1988-02-29 1989-09-08
WO2015177504A1 (en) * 2014-05-20 2015-11-26 Edwards Limited Elongated permanent ring magnet with a plurality of axially directed magnetized zones and magnetic bearing with such a ring magnet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331557A (en) * 1976-09-06 1978-03-24 Asaji Hoshino Notch mold for press
JPS5453747A (en) * 1977-10-05 1979-04-27 Nippon Oil Seal Ind Co Ltd Seal apparatus employing magnetic fluid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331557A (en) * 1976-09-06 1978-03-24 Asaji Hoshino Notch mold for press
JPS5453747A (en) * 1977-10-05 1979-04-27 Nippon Oil Seal Ind Co Ltd Seal apparatus employing magnetic fluid

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01132879U (ja) * 1988-02-29 1989-09-08
WO2015177504A1 (en) * 2014-05-20 2015-11-26 Edwards Limited Elongated permanent ring magnet with a plurality of axially directed magnetized zones and magnetic bearing with such a ring magnet
CN106460925A (zh) * 2014-05-20 2017-02-22 爱德华兹有限公司 具有多个轴向指向磁化区域的加长永久环形磁体和具有此种环形磁体的磁轴承
US10359047B2 (en) 2014-05-20 2019-07-23 Edwards Limited Elongated permanent ring management with a plurality of axially directed magnetized zones and magnetic bearing with such a ring magnet

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