JPH0317477U - - Google Patents

Info

Publication number
JPH0317477U
JPH0317477U JP7792689U JP7792689U JPH0317477U JP H0317477 U JPH0317477 U JP H0317477U JP 7792689 U JP7792689 U JP 7792689U JP 7792689 U JP7792689 U JP 7792689U JP H0317477 U JPH0317477 U JP H0317477U
Authority
JP
Japan
Prior art keywords
shaft
circumferential surface
seal device
shaft seal
recesses
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
JP7792689U
Other languages
Japanese (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 JP7792689U priority Critical patent/JPH0317477U/ja
Publication of JPH0317477U publication Critical patent/JPH0317477U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Sliding-Contact Bearings (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Description

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

第１図は本考案に係る非接触式軸シール装置の
一実施例を示す半断面図、第２図は同実施例にお
ける軸受内周面の展開図、第３図は従来の非接触
式軸シール装置としてのラビリンスシールの半断
面図である。 １……回転軸、２……軸受、３……凹部、δ…
…隙間。 Fig. 1 is a half-sectional view showing an embodiment of the non-contact type shaft sealing device according to the present invention, Fig. 2 is a developed view of the inner circumferential surface of the bearing in the same embodiment, and Fig. 3 is a conventional non-contact type shaft sealing device. FIG. 2 is a half-sectional view of a labyrinth seal as a sealing device. 1...Rotating shaft, 2...Bearing, 3...Recess, δ...
…gap.

Claims (1)

【実用新案登録請求の範囲】 １ 軸の外周面およびこの軸を僅かな隙間を介
して包囲する軸受の内周面のうちのいずれか一方
に、互いに不連続の多数の凹部を形成したことを
特徴とする非接触式軸シール装置。 ２ 請求項１記載の非接触式軸シール装置におい
て、多数の凹部を形成した面が、固体潤滑材料か
らなることを特徴とする非接触式軸シール装置。[Claims for Utility Model Registration] 1. A large number of discontinuous recesses are formed on either the outer circumferential surface of the shaft or the inner circumferential surface of the bearing that surrounds the shaft with a small gap. Features a non-contact shaft seal device. 2. The non-contact type shaft seal device according to claim 1, wherein the surface on which the many recesses are formed is made of a solid lubricant material.
JP7792689U 1989-06-30 1989-06-30 Pending JPH0317477U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7792689U JPH0317477U (en) 1989-06-30 1989-06-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7792689U JPH0317477U (en) 1989-06-30 1989-06-30

Publications (1)

Publication Number Publication Date
JPH0317477U true JPH0317477U (en) 1991-02-21

Family

ID=31620748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7792689U Pending JPH0317477U (en) 1989-06-30 1989-06-30

Country Status (1)

Country Link
JP (1) JPH0317477U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005299753A (en) * 2004-04-08 2005-10-27 Ntn Corp Sealing device for bearing for axle of rolling stock
JP2008128275A (en) * 2006-11-16 2008-06-05 Hitachi Ltd Labyrinth seal
JP2010038114A (en) * 2008-08-07 2010-02-18 Hitachi Plant Technologies Ltd Centrifugal compressor
JP2012225453A (en) * 2011-04-21 2012-11-15 Mitsubishi Heavy Ind Ltd Sealing device and gas turbine
WO2014087708A1 (en) * 2012-12-04 2014-06-12 三菱重工業株式会社 Seal device and rotary machine
JP2014126139A (en) * 2012-12-26 2014-07-07 Kawasaki Heavy Ind Ltd Non-contact annular seal
JP2016027287A (en) * 2015-11-19 2016-02-18 三菱重工業株式会社 Seal device
JP2016153654A (en) * 2012-11-13 2016-08-25 三菱重工コンプレッサ株式会社 Rotary machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4943666A (en) * 1972-05-15 1974-04-24
JPS6157271B2 (en) * 1982-09-01 1986-12-05 Fujitec Kk
JPS6257866U (en) * 1985-10-01 1987-04-10

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4943666A (en) * 1972-05-15 1974-04-24
JPS6157271B2 (en) * 1982-09-01 1986-12-05 Fujitec Kk
JPS6257866U (en) * 1985-10-01 1987-04-10

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005299753A (en) * 2004-04-08 2005-10-27 Ntn Corp Sealing device for bearing for axle of rolling stock
JP2008128275A (en) * 2006-11-16 2008-06-05 Hitachi Ltd Labyrinth seal
JP2010038114A (en) * 2008-08-07 2010-02-18 Hitachi Plant Technologies Ltd Centrifugal compressor
JP2012225453A (en) * 2011-04-21 2012-11-15 Mitsubishi Heavy Ind Ltd Sealing device and gas turbine
JP2016153654A (en) * 2012-11-13 2016-08-25 三菱重工コンプレッサ株式会社 Rotary machine
US10066750B2 (en) 2012-11-13 2018-09-04 Mitsubishi Heavy Industries Compressor Corporation Rotary machine
WO2014087708A1 (en) * 2012-12-04 2014-06-12 三菱重工業株式会社 Seal device and rotary machine
JP2014109263A (en) * 2012-12-04 2014-06-12 Mitsubishi Heavy Ind Ltd Sealing device and rotary machine
CN104471255A (en) * 2012-12-04 2015-03-25 三菱重工业株式会社 Seal device and rotary machine
US9822791B2 (en) 2012-12-04 2017-11-21 Mitsubishi Heavy Industries, Ltd. Seal device and rotary machine
JP2014126139A (en) * 2012-12-26 2014-07-07 Kawasaki Heavy Ind Ltd Non-contact annular seal
JP2016027287A (en) * 2015-11-19 2016-02-18 三菱重工業株式会社 Seal device

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