JPS5675999A - Metallic impeller fixing device for compressor - Google Patents
Metallic impeller fixing device for compressorInfo
- Publication number
- JPS5675999A JPS5675999A JP15344179A JP15344179A JPS5675999A JP S5675999 A JPS5675999 A JP S5675999A JP 15344179 A JP15344179 A JP 15344179A JP 15344179 A JP15344179 A JP 15344179A JP S5675999 A JPS5675999 A JP S5675999A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic shaft
- bolt
- metallic impeller
- tensile stress
- impeller
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To prevent the breakdown by eliminating the tensile stress in a ceramic shaft associated with the fastening and to produce only the compression stress when securing metallic impeller and a ceramic shaft thereby improving the durability of the ceramic shaft which is not strong against the tensile stress.
CONSTITUTION: A stepped hole 14 is made through the center of rotation of a metallic impeller 5 to insert a bolt 12 and a ceramic shaft 1 coaxially. When fastening a nut 8 over a screwed section 4 through a washer 7, the metallic impeller 5 and the ceramic shaft 1 are fastened through a bolt 12. When fastening through a bolt 12 in such a manner, the end of the ceramic shaft 1 between projections provided on the metallic impeller 5 and the bolt 12 is pressure contacted against the impeller 5, thereby the tensile stress isn't applied but only the compression stress is applied. Consequently the durability of the ceramic shaft 1 which is not strong against the tensile stress can be improved to prevent the breakdown.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15344179A JPS5675999A (en) | 1979-11-27 | 1979-11-27 | Metallic impeller fixing device for compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15344179A JPS5675999A (en) | 1979-11-27 | 1979-11-27 | Metallic impeller fixing device for compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5675999A true JPS5675999A (en) | 1981-06-23 |
Family
ID=15562594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15344179A Pending JPS5675999A (en) | 1979-11-27 | 1979-11-27 | Metallic impeller fixing device for compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5675999A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5116202A (en) * | 1990-07-25 | 1992-05-26 | Lin Yeun Junn | Impeller |
JPWO2015146765A1 (en) * | 2014-03-26 | 2017-04-13 | 株式会社Ihi | Impeller fastening structure and turbo compressor |
-
1979
- 1979-11-27 JP JP15344179A patent/JPS5675999A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5116202A (en) * | 1990-07-25 | 1992-05-26 | Lin Yeun Junn | Impeller |
JPWO2015146765A1 (en) * | 2014-03-26 | 2017-04-13 | 株式会社Ihi | Impeller fastening structure and turbo compressor |
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