JPS5692397A - Vane wheel of centrifugal blower - Google Patents
Vane wheel of centrifugal blowerInfo
- Publication number
- JPS5692397A JPS5692397A JP17374279A JP17374279A JPS5692397A JP S5692397 A JPS5692397 A JP S5692397A JP 17374279 A JP17374279 A JP 17374279A JP 17374279 A JP17374279 A JP 17374279A JP S5692397 A JPS5692397 A JP S5692397A
- Authority
- JP
- Japan
- Prior art keywords
- small
- vane wheel
- flow volume
- hole
- area
- 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
- 230000006866 deterioration Effects 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To minimize an inflow resistance through parallel arrangement of a flow direction with a small through hole in a large flow volume area and make velocity distribution uniform in a small flow volume area to prevent deterioration of a characteristic by providing a vane wheel with multiple small thrugh holes on the external side and a vane wheel with a limited number of vanes on the internal side.
CONSTITUTION: A vane wheel 10 with multiple small through holes 3 is formed on the external side and a vane wheel 11 with a limited number of vanes on the internal side. In this case, an inlet velocity (v) is high in a large flow volume area and a fluid flows obliquely in against a vane wheel, but the direction of a flow is parallel with a small through hole 3 when a fluid reaches the area of the small through hole 3, reducing an inflow resistance. As a result, a decrease in the discharge pressure, i.e. a loss of the said pressure is reduced. Next, an uneven velocity distribution is generated in the region of a limited number of vanes 11 over a small flow volume stretch as indicated by a group of arrow marks 23. However, the velocity distribution is rendered uniform by flowing into the area 10 of the small through hole 3 as shown by an arrow mark 29. Consequently, the deterioration of a characteristic is insignificant in the small flow volume area on account of a mixture loss of a discharge flow. Thus it is possible for a vane wheel to maintain a high efficienty over an extensive range.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17374279A JPS5692397A (en) | 1979-12-26 | 1979-12-26 | Vane wheel of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17374279A JPS5692397A (en) | 1979-12-26 | 1979-12-26 | Vane wheel of centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5692397A true JPS5692397A (en) | 1981-07-27 |
Family
ID=15966279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17374279A Pending JPS5692397A (en) | 1979-12-26 | 1979-12-26 | Vane wheel of centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5692397A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5741118A (en) * | 1994-04-28 | 1998-04-21 | Toto Ltd. | Multiblade radial fan and method for making same |
-
1979
- 1979-12-26 JP JP17374279A patent/JPS5692397A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5741118A (en) * | 1994-04-28 | 1998-04-21 | Toto Ltd. | Multiblade radial fan and method for making same |
| EP0707149A4 (en) * | 1994-04-28 | 1998-05-27 | Toto Ltd | Multivane radial fan designing method and multivane radial fan |
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