JPS57191495A - Axial-flow fan - Google Patents
Axial-flow fanInfo
- Publication number
- JPS57191495A JPS57191495A JP7524281A JP7524281A JPS57191495A JP S57191495 A JPS57191495 A JP S57191495A JP 7524281 A JP7524281 A JP 7524281A JP 7524281 A JP7524281 A JP 7524281A JP S57191495 A JPS57191495 A JP S57191495A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- control plate
- blade
- flow
- air flow
- 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
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE:To enable to reduce production of noises, to enhance flow regulating effect, and to increase air capacity of a fan, by forming a control plate in the form of a projection on the surface of a fan blade at a particular portion near the tip thereof, and thereby reducing disturbance of flow at the tip portion of the fan blade. CONSTITUTION:A control plate 7 in the form of a projection is formed on the upper surface of a fan blade 4 at a particular portion near the tip thereof. By the function of this control plate 7, air flow along the control plate 7 is directed obliquely upward and air is made to flow along the tip of the blade 4. Resultantly, vortices produced at the tip portion of the blade 4 located about 0.1R (R is the radius of rotation of the fan blade) from the tip and having a tendency of flow from the lower surface to the upper surface of the blade 4 can be weakened and separation of air flow from a shroud 5 can be minimized, so that production of noises can be reduced. Further, since the control plate 7 is disposed at a position where the air flow is deflected, it serves to regulate air flow and to remove disturbance of air flow. Thus, it is enabled to increase the air capacity of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7524281A JPS57191495A (en) | 1981-05-19 | 1981-05-19 | Axial-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7524281A JPS57191495A (en) | 1981-05-19 | 1981-05-19 | Axial-flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57191495A true JPS57191495A (en) | 1982-11-25 |
Family
ID=13570552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7524281A Pending JPS57191495A (en) | 1981-05-19 | 1981-05-19 | Axial-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57191495A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105998A (en) * | 1982-12-08 | 1984-06-19 | Nippon Denso Co Ltd | Axial flow fan |
| JPS59126100A (en) * | 1983-01-05 | 1984-07-20 | Natl Aerospace Lab | Rotary blade |
| JP2004316625A (en) * | 2003-04-11 | 2004-11-11 | Taida Electronic Ind Co Ltd | Radiator and its fan housing |
| JP2005194923A (en) * | 2004-01-06 | 2005-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Compressor moving blade |
| JP2007040197A (en) * | 2005-08-03 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | Propeller fan |
-
1981
- 1981-05-19 JP JP7524281A patent/JPS57191495A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105998A (en) * | 1982-12-08 | 1984-06-19 | Nippon Denso Co Ltd | Axial flow fan |
| JPS59126100A (en) * | 1983-01-05 | 1984-07-20 | Natl Aerospace Lab | Rotary blade |
| JP2004316625A (en) * | 2003-04-11 | 2004-11-11 | Taida Electronic Ind Co Ltd | Radiator and its fan housing |
| JP2005194923A (en) * | 2004-01-06 | 2005-07-21 | Ishikawajima Harima Heavy Ind Co Ltd | Compressor moving blade |
| JP2007040197A (en) * | 2005-08-03 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | Propeller fan |
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