JPS5977663U - Ferrofluid injection device - Google Patents

Ferrofluid injection device

Info

Publication number
JPS5977663U
JPS5977663U JP17360082U JP17360082U JPS5977663U JP S5977663 U JPS5977663 U JP S5977663U JP 17360082 U JP17360082 U JP 17360082U JP 17360082 U JP17360082 U JP 17360082U JP S5977663 U JPS5977663 U JP S5977663U
Authority
JP
Japan
Prior art keywords
magnetic pole
pole piece
magnetic
fluid
lid
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
JP17360082U
Other languages
Japanese (ja)
Other versions
JPS6212939Y2 (en
Inventor
恭三郎 古村
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.)
NSK Ltd
Original Assignee
NSK Ltd
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 NSK Ltd filed Critical NSK Ltd
Priority to JP17360082U priority Critical patent/JPS5977663U/en
Publication of JPS5977663U publication Critical patent/JPS5977663U/en
Application granted granted Critical
Publication of JPS6212939Y2 publication Critical patent/JPS6212939Y2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の注入手段の一例を示す図、第２図は本考
案の注入装置を装着して磁性流体を注入する状態を示す
縦断面図、第３図は他の実施例を示す縦断面図、第４図
は本考案注入装置に用いられるべきリリーフ弁の一例を
示す断面図である。 符号の説明、１・・・・・・軸、２・・・・・・磁石、
３．４・・・・・・磁極片、５・・・・・・磁性流体、
１０．２０・・・・・・蓋部材、１６・・・・・・リリ
ーフ弁、２０・・・・・・コアロッド、２２・・・・・
・磁性流体シール、２３・・・・・・エア逃し孔。Fig. 1 is a diagram showing an example of a conventional injection means, Fig. 2 is a longitudinal cross-sectional view showing a state in which the injection device of the present invention is installed and injecting magnetic fluid, and Fig. 3 is a longitudinal cross-sectional view showing another embodiment. The top view and FIG. 4 are cross-sectional views showing an example of a relief valve to be used in the injection device of the present invention. Explanation of symbols, 1...Axis, 2...Magnet,
3.4...Magnetic pole piece, 5...Magnetic fluid,
10.20... Lid member, 16... Relief valve, 20... Core rod, 22...
・Magnetic fluid seal, 23... Air relief hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転軸の外周に緩嵌した環状の磁石と、該磁石の両磁極
端に配設した環状磁極片と、該磁極片の内周と上記回転
軸の外周との間に注入保持されている磁性流体とよりな
る磁性流体シールの、一方の磁極片の内周部分に予め注
入した所定量の磁性流体を上記一方の磁極片より他方の
磁極片へとゆ゛き互らせるための磁性流体注入装置であ
って、上記一方の磁極片の注入側端面に密閉空間を形成
するための蓋状部材と、該蓋状部材に配管され、上記密
閉空間の内圧を高めるための空圧装置とより成り、且つ
該空圧装置は微小圧ＩＪ　ＩＪ−フ弁を含むことを特徴
とする磁性流体注入装置。An annular magnet loosely fitted around the outer periphery of the rotating shaft, annular magnetic pole pieces disposed at both ends of the magnet, and magnetism held injected between the inner periphery of the magnetic pole piece and the outer periphery of the rotating shaft. Injection of magnetic fluid for alternating a predetermined amount of magnetic fluid injected into the inner peripheral portion of one magnetic pole piece of a magnetic fluid seal made of fluid from one magnetic pole piece to the other magnetic pole piece. The device comprises a lid-like member for forming a sealed space on the injection side end face of one of the magnetic pole pieces, and a pneumatic device that is piped to the lid-like member and increases the internal pressure of the sealed space. , and the pneumatic device includes a micro-pressure IJ valve.
JP17360082U 1982-11-18 1982-11-18 Ferrofluid injection device Granted JPS5977663U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17360082U JPS5977663U (en) 1982-11-18 1982-11-18 Ferrofluid injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17360082U JPS5977663U (en) 1982-11-18 1982-11-18 Ferrofluid injection device

Publications (2)

Publication Number Publication Date
JPS5977663U true JPS5977663U (en) 1984-05-25
JPS6212939Y2 JPS6212939Y2 (en) 1987-04-03

Family

ID=30378142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17360082U Granted JPS5977663U (en) 1982-11-18 1982-11-18 Ferrofluid injection device

Country Status (1)

Country Link
JP (1) JPS5977663U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6162673A (en) * 1984-09-03 1986-03-31 Fujitsu Ltd Method of enclosing magnetic seal liquid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6162673A (en) * 1984-09-03 1986-03-31 Fujitsu Ltd Method of enclosing magnetic seal liquid

Also Published As

Publication number Publication date
JPS6212939Y2 (en) 1987-04-03

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