KR960034756A - Low Noise Axial Fan Wing - Google Patents

Low Noise Axial Fan Wing Download PDF

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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
Application number
KR1019950005483A
Other languages
Korean (ko)
Other versions
KR0121100B1 (en
Inventor
백인영
Original Assignee
이종수
Lg 산전주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 이종수, Lg 산전주식회사 filed Critical 이종수
Priority to KR1019950005483A priority Critical patent/KR0121100B1/en
Publication of KR960034756A publication Critical patent/KR960034756A/en
Application granted granted Critical
Publication of KR0121100B1 publication Critical patent/KR0121100B1/en

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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

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  • 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

저소음형 축류팬 날개Low Noise Axial Fan Wing

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)

캠버각(θ)의 변화량을 나타내는 식으로 회전반경(r)에 대한 2차함수인 θ(r)=ar2(/SP>+br+c식을 사용하여 축류팬 날개를 형성함을 특징으로 하는 저소음형 축류팬 날개. The axial fan blade is formed by using the equation θ (r) = ar 2 (/ SP> + br + c ), which is the second function of the rotation radius r . Low noise axial fan wing. 제1항에 있어서, 허부에서의 캠버각 θH와 팁에서의 캠버각θT의 범위는 각각 25°≤θH≤35°, 16°≤θT≤26°임을 특징으로 하는 저소음형 축류팬 날개.The method of claim 1, wherein the range of camber angle θ T of the camber angle θ H in the tip of the imaginary part at the low-noise type axial flow fan, characterized in that the 25 ° ≤θ H ≤35 °, 16 ° ≤θ T ≤26 ° , respectively wing. 제1한 또는 제2항에 있어서, 상기 허브에서의 캠버각 θH는 30이고, 팁에서의 캠버각 θT는21이며, 상기 2차식은 θ(r)=2.082(r/rT-4)2+2.262로 됨을 특징으로 하는 저소음형 축류팬 날개. (여기서 rT는 팁반경으로 상수이다.)The method according to claim 1 or 2, wherein the camber angle θ H at the hub is 30, the camber angle θ T at the tip is 21, and the quadratic equation is θ (r) = 2.082 (r / r T- 4). ) 2 +2.262 low noise axial fan blades. (Where r T is a constant tip radius) ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950005483A 1995-03-16 1995-03-16 Low noise axial fan blade KR0121100B1 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100852950B1 (en) * 2002-05-29 2008-08-19 한라공조주식회사 Blade Structure of Axial Flow Fan

Cited By (1)

* Cited by examiner, † Cited by third party
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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