JP2011099389A5 - - Google Patents
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- Publication number
- JP2011099389A5 JP2011099389A5 JP2009254858A JP2009254858A JP2011099389A5 JP 2011099389 A5 JP2011099389 A5 JP 2011099389A5 JP 2009254858 A JP2009254858 A JP 2009254858A JP 2009254858 A JP2009254858 A JP 2009254858A JP 2011099389 A5 JP2011099389 A5 JP 2011099389A5
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- gap
- resin
- sealing performance
- drive shaft
- 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
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Description
なお、本実施例の軸受24は、機械的強度が高く耐摩耗性の良い硬質のPEEK(登録商標)樹脂を用いている。しかし、樹脂は線膨張係数などの物性値のばらつきが大きいため、駆動軸とのギャップをあまり小さく設計できず、ギャップを0.2〜0.3mm程度許容することが必要である。このギャップの大きさに伴い、軸の偏心量が大きくなるため軸貫通部からのシール性の低下が懸念されるが、本実施例では、隙間44をこの偏心量を超える隙間に設定しており、シールリング22が軸に追随できる構造となっているため、駆動軸の軸貫通部からのシール性を著しく改善することができる。 Note that the bearing 24 of this embodiment uses hard PEEK (registered trademark) resin having high mechanical strength and good wear resistance. However, since the resin has a large variation in physical property values such as a coefficient of linear expansion, the gap with the drive shaft cannot be designed so small, and it is necessary to allow the gap to be about 0.2 to 0.3 mm. Along with the size of this gap, the amount of eccentricity of the shaft increases, so there is a concern that the sealing performance from the shaft penetrating portion will deteriorate. Since the seal ring 22 has a structure that can follow the shaft, the sealing performance from the shaft through portion of the drive shaft can be remarkably improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009254858A JP5462593B2 (en) | 2009-11-06 | 2009-11-06 | Centrifugal compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009254858A JP5462593B2 (en) | 2009-11-06 | 2009-11-06 | Centrifugal compressor |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011099389A JP2011099389A (en) | 2011-05-19 |
JP2011099389A5 true JP2011099389A5 (en) | 2012-10-11 |
JP5462593B2 JP5462593B2 (en) | 2014-04-02 |
Family
ID=44190765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009254858A Expired - Fee Related JP5462593B2 (en) | 2009-11-06 | 2009-11-06 | Centrifugal compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5462593B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107202035A (en) * | 2016-03-17 | 2017-09-26 | 西门子公司 | A kind of pipeline compressor |
CN112682356B (en) * | 2020-12-24 | 2024-04-30 | 钛灵特压缩机无锡有限公司 | Inlet guide vane for gear speed-increasing centrifugal compressor |
CN114370430B (en) * | 2021-12-28 | 2024-03-05 | 沈阳透平机械股份有限公司 | Guide vane actuating mechanism of cylindrical centrifugal compressor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59130028U (en) * | 1983-02-21 | 1984-08-31 | 本田技研工業株式会社 | Actuator device for wastegate valve control |
JP2524847Y2 (en) * | 1991-05-01 | 1997-02-05 | 三菱重工業株式会社 | Ceramic bearing |
JP2003004143A (en) * | 2001-06-22 | 2003-01-08 | Nok Corp | Sealing device |
JP4658639B2 (en) * | 2005-02-25 | 2011-03-23 | 三菱重工コンプレッサ株式会社 | Centrifugal compressor |
-
2009
- 2009-11-06 JP JP2009254858A patent/JP5462593B2/en not_active Expired - Fee Related
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