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
Links
- 239000000314 lubricant Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 3
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Sliding-Contact Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
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)
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.
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)
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)
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 |
-
1989
- 1989-06-30 JP JP7792689U patent/JPH0317477U/ja active Pending
Patent Citations (3)
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 (13)
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 |
JP4655123B2 (en) * | 2008-08-07 | 2011-03-23 | 株式会社日立プラントテクノロジー | 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 |
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 |
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 |
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