JPS5685594A - Fan of unequal interval - Google Patents
Fan of unequal intervalInfo
- Publication number
- JPS5685594A JPS5685594A JP16448579A JP16448579A JPS5685594A JP S5685594 A JPS5685594 A JP S5685594A JP 16448579 A JP16448579 A JP 16448579A JP 16448579 A JP16448579 A JP 16448579A JP S5685594 A JPS5685594 A JP S5685594A
- Authority
- JP
- Japan
- Prior art keywords
- angle
- blades
- fan
- pair
- decided
- 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 readily enable designing of the fan of which noise components generated from rotatory movement is minimized by a method wherein the fitted angle made by a pair of blade is to be decided within the specified angle.
CONSTITUTION: The method of deciding the unequal interval to the blades is that two adjoining blades, i.e., 1-2, 3-4, 5-6, are regarded as a pair, and unequal angle α is to be given to each pair as illustrated. In case the number of blades is odd number, one of them is thought to be the fixed, and the remainder will be paired in the same way. In this method, there is no movement of the balance point (the dotted line), the balance of blades will not be broken, and the angles for all blades can be decided definitely if an angle α is decided as illustrated. Next, by deciding the angle α as shown in the diagram, wherein the unequal angle interval Q obtained by the specified formula must be within 10≤Q≤13.5, the fan the noise components from rotatory movement thereof is minimized can be designed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16448579A JPS5685594A (en) | 1979-12-17 | 1979-12-17 | Fan of unequal interval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16448579A JPS5685594A (en) | 1979-12-17 | 1979-12-17 | Fan of unequal interval |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5685594A true JPS5685594A (en) | 1981-07-11 |
Family
ID=15794054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16448579A Pending JPS5685594A (en) | 1979-12-17 | 1979-12-17 | Fan of unequal interval |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5685594A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61141846U (en) * | 1985-02-25 | 1986-09-02 | ||
| US4746266A (en) * | 1986-09-19 | 1988-05-24 | Siemens Aktiengesellschaft | Radial blower |
| US6139275A (en) * | 1998-07-28 | 2000-10-31 | Kabushiki Kaisha Toshiba | Impeller for use in cooling dynamoelectric machine |
| JP2001214894A (en) * | 2000-01-28 | 2001-08-10 | Seiko Epson Corp | Axial fans, centrifugal fans, and electronic devices using them |
| JP2003042094A (en) * | 2001-07-27 | 2003-02-13 | Zexel Valeo Climate Control Corp | Axial flow fan |
| JP2007040201A (en) * | 2005-08-03 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | Propeller fan |
| US7815418B2 (en) | 2005-08-03 | 2010-10-19 | Mitsubishi Heavy Industries, Ltd. | Shroud and rotary vane wheel of propeller fan and propeller fan |
| EP2336569A1 (en) * | 2009-12-18 | 2011-06-22 | Yen Sun Technology Corp. | Fan device |
| EP2336570A1 (en) * | 2009-12-18 | 2011-06-22 | Yen Sun Technology Corp. | Fan device |
| WO2017085680A1 (en) * | 2015-11-19 | 2017-05-26 | Spal Automotive S.R.L. | Process for calculating an angular spacing between the blades of an axial fan |
-
1979
- 1979-12-17 JP JP16448579A patent/JPS5685594A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61141846U (en) * | 1985-02-25 | 1986-09-02 | ||
| US4746266A (en) * | 1986-09-19 | 1988-05-24 | Siemens Aktiengesellschaft | Radial blower |
| US6139275A (en) * | 1998-07-28 | 2000-10-31 | Kabushiki Kaisha Toshiba | Impeller for use in cooling dynamoelectric machine |
| JP2001214894A (en) * | 2000-01-28 | 2001-08-10 | Seiko Epson Corp | Axial fans, centrifugal fans, and electronic devices using them |
| JP2003042094A (en) * | 2001-07-27 | 2003-02-13 | Zexel Valeo Climate Control Corp | Axial flow fan |
| JP2007040201A (en) * | 2005-08-03 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | Propeller fan |
| US7815418B2 (en) | 2005-08-03 | 2010-10-19 | Mitsubishi Heavy Industries, Ltd. | Shroud and rotary vane wheel of propeller fan and propeller fan |
| JP4576304B2 (en) * | 2005-08-03 | 2010-11-04 | 三菱重工業株式会社 | Propeller fan |
| US7909572B2 (en) | 2005-08-03 | 2011-03-22 | Mitsubishi Heavy Industries, Ltd. | Shroud and rotary vane wheel of propeller fan and propeller fan |
| EP2336569A1 (en) * | 2009-12-18 | 2011-06-22 | Yen Sun Technology Corp. | Fan device |
| EP2336570A1 (en) * | 2009-12-18 | 2011-06-22 | Yen Sun Technology Corp. | Fan device |
| WO2017085680A1 (en) * | 2015-11-19 | 2017-05-26 | Spal Automotive S.R.L. | Process for calculating an angular spacing between the blades of an axial fan |
| CN108350902A (en) * | 2015-11-19 | 2018-07-31 | 斯佩尔汽车有限公司 | The method of the angular separation between blade for calculating tube-axial fan |
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