JPS54128802A - High specific speed pump - Google Patents
High specific speed pumpInfo
- Publication number
- JPS54128802A JPS54128802A JP3550078A JP3550078A JPS54128802A JP S54128802 A JPS54128802 A JP S54128802A JP 3550078 A JP3550078 A JP 3550078A JP 3550078 A JP3550078 A JP 3550078A JP S54128802 A JPS54128802 A JP S54128802A
- Authority
- JP
- Japan
- Prior art keywords
- vanes
- boss
- cut
- shaft power
- piston
- 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 reduce the cut-off shaft power of a pump by passing vanes through the peripheral wall of a rotary boss and causing the vanes to retreat and project relative to the boss.
CONSTITUTION: In normal operation, compressed fluid is fed into the right chamber of a cylinder 18 through a pressure pipe 17 so that a piston 15 is located in a leftmost position. Vanes 11 are pushed out through an operating boss 10 so as to optimize the gap between the tip of the vanes 11 and a casing liner 2. In cut-off operation, compressed fluid is fed into the left chamber of the cylinder 18 through a pressure pipe 16 so that the piston 15 is displaced rightward. The vanes 11 are retreated through the projecting portion of a groove 12 in the boss 10, the area of the vanes 11 is reduced, the lift is decreased, the shaft power is prevented from rising, and the cut-off shaft power is reduced.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3550078A JPS54128802A (en) | 1978-03-29 | 1978-03-29 | High specific speed pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3550078A JPS54128802A (en) | 1978-03-29 | 1978-03-29 | High specific speed pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54128802A true JPS54128802A (en) | 1979-10-05 |
Family
ID=12443465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3550078A Pending JPS54128802A (en) | 1978-03-29 | 1978-03-29 | High specific speed pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54128802A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6017299A (en) * | 1983-07-11 | 1985-01-29 | Ebara Corp | Movable-vane mixed-flow pump |
JPS6073094A (en) * | 1983-09-29 | 1985-04-25 | Ebara Corp | Variable vane mixed flow pump |
CN103994099A (en) * | 2014-05-07 | 2014-08-20 | 江苏大学 | Combined type method for designing variable-camber low-specific-speed centrifugal pump impeller |
-
1978
- 1978-03-29 JP JP3550078A patent/JPS54128802A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6017299A (en) * | 1983-07-11 | 1985-01-29 | Ebara Corp | Movable-vane mixed-flow pump |
JPS6073094A (en) * | 1983-09-29 | 1985-04-25 | Ebara Corp | Variable vane mixed flow pump |
CN103994099A (en) * | 2014-05-07 | 2014-08-20 | 江苏大学 | Combined type method for designing variable-camber low-specific-speed centrifugal pump impeller |
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