JPS5654992A - Centrifugal impeller - Google Patents
Centrifugal impellerInfo
- Publication number
- JPS5654992A JPS5654992A JP12988479A JP12988479A JPS5654992A JP S5654992 A JPS5654992 A JP S5654992A JP 12988479 A JP12988479 A JP 12988479A JP 12988479 A JP12988479 A JP 12988479A JP S5654992 A JPS5654992 A JP S5654992A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- speed
- exit
- meridian surface
- flow passage
- 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 improve the efficiency of an impeller by maintaining the relative speed distribution in an impeller in a good form, in a centrifugal impeller having a low specific speed and a small exit angle of the vane wheel.
CONSTITUTION: The shape of the meridian surface of an impeller is widened toward end in the vicinity of te exit of the impeller. Namely, in the shape of the meridian surface, a core plate 2 is formed into rectilinear form and the side plate 3 is formed into circular arc. As a result of this, the width b2 of the exit is larger than the width bm of the intermediate part of the flow pasage. Due to the shape of the meridian surface flow passage, the sectional area of the flow passage at the intermediate part of the flow passage reduces, and the speed on the meridian surface increases. On the other hand, in the vicinity of the exit, the sectional area increases relatively, and the speed on the meridian surface reduces. Accordingly, the relative speed distribution becomes desirable in which the speed reduces continuously and monotonously from the inlet of the impeller to the exit, and the minimum value is not form midway in the average speed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12988479A JPS5654992A (en) | 1979-10-11 | 1979-10-11 | Centrifugal impeller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12988479A JPS5654992A (en) | 1979-10-11 | 1979-10-11 | Centrifugal impeller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5654992A true JPS5654992A (en) | 1981-05-15 |
Family
ID=15020710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12988479A Pending JPS5654992A (en) | 1979-10-11 | 1979-10-11 | Centrifugal impeller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5654992A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3226541A1 (en) * | 1981-07-15 | 1983-02-03 | Toyota Jidosha K.K., Toyota, Aichi | FLOW CONTROL UNIT FOR AN INLET CHANNEL WITH A SPIRAL DESIGN |
WO2019235421A1 (en) * | 2018-06-05 | 2019-12-12 | 株式会社村田製作所 | Blowing device and fluid control device |
-
1979
- 1979-10-11 JP JP12988479A patent/JPS5654992A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3226541A1 (en) * | 1981-07-15 | 1983-02-03 | Toyota Jidosha K.K., Toyota, Aichi | FLOW CONTROL UNIT FOR AN INLET CHANNEL WITH A SPIRAL DESIGN |
WO2019235421A1 (en) * | 2018-06-05 | 2019-12-12 | 株式会社村田製作所 | Blowing device and fluid control device |
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