JPS6319431Y2 - - Google Patents
Info
- Publication number
- JPS6319431Y2 JPS6319431Y2 JP4199283U JP4199283U JPS6319431Y2 JP S6319431 Y2 JPS6319431 Y2 JP S6319431Y2 JP 4199283 U JP4199283 U JP 4199283U JP 4199283 U JP4199283 U JP 4199283U JP S6319431 Y2 JPS6319431 Y2 JP S6319431Y2
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- cover member
- hole
- shaft portion
- pressure
- 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.)
- Expired
Links
- 239000012530 fluid Substances 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199283U JPS59147786U (ja) | 1983-03-25 | 1983-03-25 | タ−ボドリル |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199283U JPS59147786U (ja) | 1983-03-25 | 1983-03-25 | タ−ボドリル |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59147786U JPS59147786U (ja) | 1984-10-02 |
| JPS6319431Y2 true JPS6319431Y2 (2) | 1988-05-31 |
Family
ID=30172552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4199283U Granted JPS59147786U (ja) | 1983-03-25 | 1983-03-25 | タ−ボドリル |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59147786U (2) |
-
1983
- 1983-03-25 JP JP4199283U patent/JPS59147786U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59147786U (ja) | 1984-10-02 |
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