JPS54158701A - Slant flow pump - Google Patents
Slant flow pumpInfo
- Publication number
- JPS54158701A JPS54158701A JP6664778A JP6664778A JPS54158701A JP S54158701 A JPS54158701 A JP S54158701A JP 6664778 A JP6664778 A JP 6664778A JP 6664778 A JP6664778 A JP 6664778A JP S54158701 A JPS54158701 A JP S54158701A
- Authority
- JP
- Japan
- Prior art keywords
- vane
- variable pitch
- pump
- movable
- fixed
- 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 enable a pump to maintain high efficiency operation for a wide range of flow changes at minimum vane operating force, etc., by arranging a movable vane in tandem configuration and using a fixed vane and a variable pitch vane for entry side and exit side, respectively.
CONSTITUTION: A movable vane of an impeller is manufactured separately from a boss 5 and exists together with a variable pitch vane 7 attached onto the boss 5 at the exit side in such a manner as to allow the movable vane to freely turn around oWo' axis, and 6 is a fixed vane at the entry side. The impeller rotates centering on a main shaft 8 allowing fluid body to flow in the direction of an arrow 9. A shaft 10 of the variable pitch vane 7 is connected to a vane-operating mechanism and adjusted by an oil hydraulic unit to maintain an appropriate vane position suitable for the pump operating condition. In this mechanism, a pump is able to maintain high efficiency operation for a wide range of flow changes as depicted in the sketch. Fruther, curves a, b and c in the sketch denote 'this invention', 'entirely variable pitch vane' and 'fixed vane', respectively.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6664778A JPS54158701A (en) | 1978-06-05 | 1978-06-05 | Slant flow pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6664778A JPS54158701A (en) | 1978-06-05 | 1978-06-05 | Slant flow pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54158701A true JPS54158701A (en) | 1979-12-14 |
Family
ID=13321888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6664778A Pending JPS54158701A (en) | 1978-06-05 | 1978-06-05 | Slant flow pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54158701A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5624226A (en) * | 1991-04-24 | 1997-04-29 | Hitachi, Ltd. | Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump |
-
1978
- 1978-06-05 JP JP6664778A patent/JPS54158701A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5624226A (en) * | 1991-04-24 | 1997-04-29 | Hitachi, Ltd. | Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump |
US5733065A (en) * | 1991-12-13 | 1998-03-31 | Hitachi, Ltd. | Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump |
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