JPS6469799A - Blade operation device of movable blade pump - Google Patents
Blade operation device of movable blade pumpInfo
- Publication number
- JPS6469799A JPS6469799A JP22638587A JP22638587A JPS6469799A JP S6469799 A JPS6469799 A JP S6469799A JP 22638587 A JP22638587 A JP 22638587A JP 22638587 A JP22638587 A JP 22638587A JP S6469799 A JPS6469799 A JP S6469799A
- Authority
- JP
- Japan
- Prior art keywords
- clearance
- impeller
- blade
- vane
- impeller vane
- 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 a clearance from being blocked by foreign matters easily by arranging a clearance closing slidable member and plural engagingly locking members engaged each other to be used when the clearance becomes zero, in the clearance between an impeller vane and an impeller hub. CONSTITUTION:An operation rod 7 is arranged in a pump main shaft 8 whose upper end is fixed to a blade angle operation mechanism so as to be driven. An impeller vane 1 is installed to the lower end of the pump main shaft 8 and rotated through the operation rod 7 and its blade installation angle is adjusted. In the above composition, the impeller stem shaft 20 of the impeller vane 1 is supported by each of upper and lower bearings 3a, 3b. And a clearance closing slidable member 9 is arranged in the clearance between the impeller vane and the impeller hub 2. Engagingly locked members 13a, 13b are formed on the outer circumference of the impeller stem shaft 20 and the inner circumference of the lower bearing 3b respectively and they are engaged each other when the clearance 12 becomes zero.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22638587A JPS6469799A (en) | 1987-09-11 | 1987-09-11 | Blade operation device of movable blade pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22638587A JPS6469799A (en) | 1987-09-11 | 1987-09-11 | Blade operation device of movable blade pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6469799A true JPS6469799A (en) | 1989-03-15 |
Family
ID=16844293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22638587A Pending JPS6469799A (en) | 1987-09-11 | 1987-09-11 | Blade operation device of movable blade pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6469799A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021173185A (en) * | 2020-04-22 | 2021-11-01 | 株式会社荏原製作所 | Impeller and hydraulic machine |
-
1987
- 1987-09-11 JP JP22638587A patent/JPS6469799A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021173185A (en) * | 2020-04-22 | 2021-11-01 | 株式会社荏原製作所 | Impeller and hydraulic machine |
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