JPS57105597A - Multiblade fan - Google Patents
Multiblade fanInfo
- Publication number
- JPS57105597A JPS57105597A JP18197580A JP18197580A JPS57105597A JP S57105597 A JPS57105597 A JP S57105597A JP 18197580 A JP18197580 A JP 18197580A JP 18197580 A JP18197580 A JP 18197580A JP S57105597 A JPS57105597 A JP S57105597A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- side plate
- multiblade fan
- plate
- blade
- 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 reduce the noise of the multiblade fan by a method wherein an impeller diameter at a side plate side is made larger than that at a main plate side as well as the inclination of the outer peripheral surface of blade arrangement to the axis of rotation is made at a specified angle.
CONSTITUTION: Because the impeller diameter at the side plate 5 side D2s is larger than that at the main plate 4 side D2h, the blade loading at the side plate 5 side is reduced, resulting in reducing the occurrence of separation of flow. Accordingly, elementary stream lines of flow within the impeller 1 are shaped as indicated with lines with an arrow head 92, 92' and 92". Especially the stream line 92 near the side plate 5 holds its shape nearly normaly to the axis of rotation 7. As a result, the distribution of the outlet velocity Cm2 of the impeller is nearly uniform along a blade width b2, resulting in reducing the noise of the multiblade fan.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18197580A JPS57105597A (en) | 1980-12-24 | 1980-12-24 | Multiblade fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18197580A JPS57105597A (en) | 1980-12-24 | 1980-12-24 | Multiblade fan |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57105597A true JPS57105597A (en) | 1982-07-01 |
Family
ID=16110133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18197580A Pending JPS57105597A (en) | 1980-12-24 | 1980-12-24 | Multiblade fan |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57105597A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61116198U (en) * | 1984-12-29 | 1986-07-22 | ||
KR100416777B1 (en) * | 2001-08-01 | 2004-01-31 | 엘지전자 주식회사 | Turbo fan |
JP2014029149A (en) * | 2012-06-26 | 2014-02-13 | Denso Corp | Centrifugal multi-blade fan |
-
1980
- 1980-12-24 JP JP18197580A patent/JPS57105597A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61116198U (en) * | 1984-12-29 | 1986-07-22 | ||
KR100416777B1 (en) * | 2001-08-01 | 2004-01-31 | 엘지전자 주식회사 | Turbo fan |
JP2014029149A (en) * | 2012-06-26 | 2014-02-13 | Denso Corp | Centrifugal multi-blade fan |
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