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
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 |
---|---|---|---|---|
EP0707149A1 (en) * | 1994-04-28 | 1996-04-17 | Toto Ltd. | Multivane radial fan designing method and multivane radial fan |
-
1979
- 1979-12-26 JP JP17374279A patent/JPS5692397A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0707149A1 (en) * | 1994-04-28 | 1996-04-17 | Toto Ltd. | Multivane radial fan designing method and multivane radial fan |
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5629099A (en) | Diffuser for centrifugal fluid machinery | |
JPS5692397A (en) | Vane wheel of centrifugal blower | |
JPS5440946A (en) | Controlling method for pump waterwheel | |
JPS55146201A (en) | Moving blade for turbine | |
GB1202895A (en) | Improvements in or relating to fluid rectifiers | |
JPS5669403A (en) | Structure for preventing vibration of rotor of axial-flow machine | |
JPS5469811A (en) | Diffuser for centrifugal compressor | |
JPS5674591A (en) | Condensor | |
JPS5718404A (en) | Nozzle for total flow turbine | |
JPS5720503A (en) | Air motor | |
JPS52109656A (en) | Control equipment for dryer | |
JPS5765804A (en) | Shroud ring for turbine blade | |
JPS57198397A (en) | Pump impeller | |
JPS5481408A (en) | Axial-flow turbine stage structure | |
JPS5654992A (en) | Centrifugal impeller | |
JPS54150506A (en) | Condenser | |
JPS5628946A (en) | Dredging device of automatically-controlled series pump type | |
JPS56104102A (en) | Cooling construction for extended foot of gas turbine moving blade | |
JPS5598310A (en) | Water service meter | |
JPS5464859A (en) | Air turbine nozzle | |
JPS5484609A (en) | Eddy-current type fluid machinery | |
GAHIN et al. | An assessment of the flow pattern in radial flow impellers in the light of some experimental results | |
JPS5660899A (en) | Diffuser of centrifugal-type fluid machine | |
JPS5449658A (en) | Air cooling appartus | |
JPS5751961A (en) | Running vane of hydraulic machinery |