JPS5566696A - Centrifugal fan with backswept wing - Google Patents
Centrifugal fan with backswept wingInfo
- Publication number
- JPS5566696A JPS5566696A JP14083978A JP14083978A JPS5566696A JP S5566696 A JPS5566696 A JP S5566696A JP 14083978 A JP14083978 A JP 14083978A JP 14083978 A JP14083978 A JP 14083978A JP S5566696 A JPS5566696 A JP S5566696A
- Authority
- JP
- Japan
- Prior art keywords
- blades
- ratio
- periphery
- centrifugal fan
- arrow
- 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 generated during operation of a centrifugal fan by selecting the ratio of the inside diameter to the outside diameter at the suction side end of a multiplicity of blades formed along the periphery of the disc to fall within the range of 0.8 ± 0.2.
CONSTITUTION: The blades 2 are arranged at intervals required on the front periphery of the disk 1, setting the internal and external diameters D2 and D1 of the blades 2 on the inhaling side 4 in the ratio of 0.8 ± 0.02. When the fan is turned in the direction of an arrow, the air inhaled from the inhaling side 4 is sent forth to the periphery passing through between the blades 2 as shown by the arrow. Even if the ratio between the external and internal diameters of the blades is gradually changed so as to measure the input and noise levels in each condition, the measured results indicate that motor load W and the noise level dB are the lowest at that value above.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14083978A JPS5566696A (en) | 1978-11-15 | 1978-11-15 | Centrifugal fan with backswept wing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14083978A JPS5566696A (en) | 1978-11-15 | 1978-11-15 | Centrifugal fan with backswept wing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5566696A true JPS5566696A (en) | 1980-05-20 |
Family
ID=15277906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14083978A Pending JPS5566696A (en) | 1978-11-15 | 1978-11-15 | Centrifugal fan with backswept wing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5566696A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000044711A (en) * | 1998-12-30 | 2000-07-15 | 전주범 | Blade of sirocco fan of air conditioner |
US6217285B1 (en) * | 1996-08-08 | 2001-04-17 | Sanyo Electric Co., Ltd. | Impeller for a centrifugal blower |
KR100380228B1 (en) * | 2000-05-16 | 2003-04-16 | 엘지전자 주식회사 | Sirocco fan of Window type Air conditioner |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49102194U (en) * | 1972-12-26 | 1974-09-03 |
-
1978
- 1978-11-15 JP JP14083978A patent/JPS5566696A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49102194U (en) * | 1972-12-26 | 1974-09-03 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6217285B1 (en) * | 1996-08-08 | 2001-04-17 | Sanyo Electric Co., Ltd. | Impeller for a centrifugal blower |
CN1083947C (en) * | 1996-08-08 | 2002-05-01 | 三洋电机株式会社 | Impeller for centrifugal fan |
KR20000044711A (en) * | 1998-12-30 | 2000-07-15 | 전주범 | Blade of sirocco fan of air conditioner |
KR100380228B1 (en) * | 2000-05-16 | 2003-04-16 | 엘지전자 주식회사 | Sirocco fan of Window type Air conditioner |
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