KR960034756A - Low Noise Axial Fan Wing - Google Patents
Low Noise Axial Fan Wing Download PDFInfo
- Publication number
- KR960034756A KR960034756A KR1019950005483A KR19950005483A KR960034756A KR 960034756 A KR960034756 A KR 960034756A KR 1019950005483 A KR1019950005483 A KR 1019950005483A KR 19950005483 A KR19950005483 A KR 19950005483A KR 960034756 A KR960034756 A KR 960034756A
- Authority
- KR
- South Korea
- Prior art keywords
- axial fan
- camber angle
- fan blade
- low noise
- present
- Prior art date
Links
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
본 발명은 축류팬 날개에 관한 것으로, 종래의 축류팬 날개가 그 설게에 있어서 캠버각을 일정하게 부여하거나 1차함수적으로 부여하여 설게함으로 인해 소음이 크게 발생하는 등의 문제점이 있는 것을 해결하기 위한 것이다. 본 발명은 캠버각의 변화량을 나타내는 삭으로 회전반경(r)에 대한 2차함수의 식을 사용하여 축류팬 날개를 형성하여, 상기 2차함수의 식은 θ(r)=2.082(r/r-4)2+2.262임을 특징으로 한다. (여기서 rT는 팁반경으로 상수이다.) 상기와 같은 본 발명에 의한 축류팬 날개의 의하면 소음이 감소하고 발생되는 풍량이 증가하는 등 공기역학적 특성이 좋아지는 효과가 있다.The present invention relates to an axial fan blade, to solve the problem that the conventional axial fan blade has a problem such as a large noise caused by the camber angle to give a constant or primary function in the design. It is for. According to the present invention, an axial fan blade is formed by using a quadratic function for the rotation radius r as a line representing a change in the camber angle, and the quadratic function is expressed as θ (r) = 2.082 (r / r− 4) It is characterized by 2 +2.262. (Where r T is a constant as the tip radius). According to the axial fan blade according to the present invention as described above, there is an effect that the aerodynamic characteristics are improved, such as noise is reduced and the amount of air generated is increased.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제4도는 본 발명에 의한 축류팬 날개의 형상을 보인 개념도.Figure 4 is a conceptual diagram showing the shape of the axial fan blade according to the present invention.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950005483A KR0121100B1 (en) | 1995-03-16 | 1995-03-16 | Low noise axial fan blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950005483A KR0121100B1 (en) | 1995-03-16 | 1995-03-16 | Low noise axial fan blade |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960034756A true KR960034756A (en) | 1996-10-24 |
KR0121100B1 KR0121100B1 (en) | 1997-11-10 |
Family
ID=19409907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950005483A KR0121100B1 (en) | 1995-03-16 | 1995-03-16 | Low noise axial fan blade |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0121100B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100852950B1 (en) * | 2002-05-29 | 2008-08-19 | 한라공조주식회사 | Blade Structure of Axial Flow Fan |
-
1995
- 1995-03-16 KR KR1019950005483A patent/KR0121100B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100852950B1 (en) * | 2002-05-29 | 2008-08-19 | 한라공조주식회사 | Blade Structure of Axial Flow Fan |
Also Published As
Publication number | Publication date |
---|---|
KR0121100B1 (en) | 1997-11-10 |
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