JPS57105598A - Fan - Google Patents
FanInfo
- Publication number
- JPS57105598A JPS57105598A JP18220880A JP18220880A JPS57105598A JP S57105598 A JPS57105598 A JP S57105598A JP 18220880 A JP18220880 A JP 18220880A JP 18220880 A JP18220880 A JP 18220880A JP S57105598 A JPS57105598 A JP S57105598A
- Authority
- JP
- Japan
- Prior art keywords
- air pressure
- blades
- auxiliary
- blower
- raised
- 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 enable to eliminate uselessly consumed power by a method wherein auxiliary blades are fitted to the outside of the side plate of an impeller mounted on a rotary shaft so as to increase the air pressure only over the necessary running range of the blower.
CONSTITUTION: The auxiliary baldes are fitted on the outside surface of the side plate 52 of the impeller 5 by means of welding, clamping by bolts, riveting or the like. The number of the auxiliary blades is almost same as that of blades 3. In this case, the size and number of the auxiliary blades are determined by the magnitude of the desired air pressure. Accordingly the air pressure can be raised only near the point of cut-off in accordance with the relationship between air flow and air pressure and the air pressure can be raised only at the necessary running part of the blower so the elimination of the uselessly consumed power is attained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18220880A JPS57105598A (en) | 1980-12-22 | 1980-12-22 | Fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18220880A JPS57105598A (en) | 1980-12-22 | 1980-12-22 | Fan |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57105598A true JPS57105598A (en) | 1982-07-01 |
Family
ID=16114238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18220880A Pending JPS57105598A (en) | 1980-12-22 | 1980-12-22 | Fan |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57105598A (en) |
-
1980
- 1980-12-22 JP JP18220880A patent/JPS57105598A/en active Pending
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