JPS55112899A - Pump having high specific speed - Google Patents
Pump having high specific speedInfo
- Publication number
- JPS55112899A JPS55112899A JP1979579A JP1979579A JPS55112899A JP S55112899 A JPS55112899 A JP S55112899A JP 1979579 A JP1979579 A JP 1979579A JP 1979579 A JP1979579 A JP 1979579A JP S55112899 A JPS55112899 A JP S55112899A
- Authority
- JP
- Japan
- Prior art keywords
- counter current
- suction
- vane wheel
- vane
- rate range
- 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
Abstract
PURPOSE: To reduce axial power by arranging, only on the outer peripheral side on the suction side of a vane wheel, movable vanes whose angles are varied by the force of flowing water and suppressing the counter current generated in low flow- rate range operation.
CONSTITUTION: When a pump is driven, in a low flow-rate range, counter current is generated close to the outer periphery on the vane wheel suction side, and flows into a vane wheel with a large swirling component, so movable vanes 5 are directed in the same direction by the counter current described above. Accordingly, the movable vane 5 acts to throttle the diameter of the suction passage and cuts 11 the transmission of the counter current to the upper stream side. Accordingly, as the movable vane 5 automatically throttles the suction flow passage due to the action of the counter current, in the low flow-rate range in which counter current is generated on the suction side of a vane wheel 1, the counter current is not transmitted to the upper stream side, and the power loss accompained by the counter current is reduced remarkably.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979579A JPS55112899A (en) | 1979-02-23 | 1979-02-23 | Pump having high specific speed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979579A JPS55112899A (en) | 1979-02-23 | 1979-02-23 | Pump having high specific speed |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55112899A true JPS55112899A (en) | 1980-09-01 |
Family
ID=12009272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1979579A Pending JPS55112899A (en) | 1979-02-23 | 1979-02-23 | Pump having high specific speed |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55112899A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4761115A (en) * | 1986-03-19 | 1988-08-02 | Standard Elektrik Lorenz Ag | Axial-flow fan |
RU2581748C2 (en) * | 2014-03-06 | 2016-04-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Воронежский государственный технический университет" | Propeller pump |
-
1979
- 1979-02-23 JP JP1979579A patent/JPS55112899A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4761115A (en) * | 1986-03-19 | 1988-08-02 | Standard Elektrik Lorenz Ag | Axial-flow fan |
RU2581748C2 (en) * | 2014-03-06 | 2016-04-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Воронежский государственный технический университет" | Propeller pump |
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