WO2009054815A1 - Pale de soufflante axiale à surfaces ondulées de pression et de succion - Google Patents

Pale de soufflante axiale à surfaces ondulées de pression et de succion Download PDF

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Publication number
WO2009054815A1
WO2009054815A1 PCT/SI2008/000030 SI2008000030W WO2009054815A1 WO 2009054815 A1 WO2009054815 A1 WO 2009054815A1 SI 2008000030 W SI2008000030 W SI 2008000030W WO 2009054815 A1 WO2009054815 A1 WO 2009054815A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
pressure
suction
axial fan
corrugated
Prior art date
Application number
PCT/SI2008/000030
Other languages
English (en)
Inventor
Vlado Schweiger
Original Assignee
Hidria Rotomatika D.O.O.
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 Hidria Rotomatika D.O.O. filed Critical Hidria Rotomatika D.O.O.
Publication of WO2009054815A1 publication Critical patent/WO2009054815A1/fr

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
    • F04D29/384—Blades characterised by form

Definitions

  • the present invention relates to a blade for an axial fan with a corrugated pressure and suction surface.
  • the corrugation presents itself as an uneven pressure and suction surface of the blade .
  • the corrugation is immediately visually apparent.
  • a fan is a device for generating a flow of fluid, particularly air, at a given pressure characteristic.
  • the active portion of a fan is represented by a plurality of blades which engender the pressure difference and the resulting flow.
  • the blades constitute an impeller, rotationally driven via a central shank by a motor, generally an electromotor. All prior-art shapes of fan blades have smooth pressure and suction surfaces, which is the standard solution for generating a fluid stream over the active surfaces of the blade.
  • Conventional solutions of blade shapes aimed at reducing the noise levels are set forth e.g. in Patent documents WO 01/92726, US 4,089,618 and 5,603,607. The said documents disclose solutions with specially shaped leading and/or trailing blade edges.
  • Fig. 1 3D view of the blade
  • Fig. 2 the pressure side and the suction side of the blade
  • Fig. 3 cross-sections of the blade through planes perpendicular to the rotational axis of the blade.
  • the blade according to the invention has corrugated pressure and suction sides of the active blade surface, whereby the fluid flow over the pressure and suction sides is directed along a more favorable path. This results in a reduced radial speed component and, consequently, in an improved outflow from the blade, ultimately leading to lower noise emissions without compromising the efficiency of the fan.
  • the corrugation also imparts a greater stiffness to the blade, resulting in smaller in-operation deformations of the blade.
  • the fan blade shown in Figure 1 represents the active part of the fan, ensuring the transport of the fluid at a given pressure difference.
  • the outer diameter of the blade is not limited.
  • Each blade is defined by four parts, namely:
  • the leading edge 2 is the edge whereby the blade scoops the fluid, and is facing in the direction of rotation 1.
  • the blade scoops the fluid with the leading edge 2.
  • the fluid travels over the pressure surface 4 and the suction surface 5, leaving the blade at the trailing edge 3. Due to the fact that the fluid is subjected to centrifugal forces while flowing over the blade, the radial component of its speed increases.
  • the novel blade shape as illustrated in Figure 1 has crests 6 and troughs 7 on the pressure side 4 and on the suction side 5.
  • the alternation of crests 6 and troughs 7 is shown in Figure 3, by way of cross-sections of the blade along the lines A-A, B-B, C-C and D-D.
  • crests 6 on the suction side 5 there are corresponding troughs 7 on the pressure side 4.
  • the crests 6 and troughs 7 alternate along the entire span of the blade, which is to say, from its root, or axis of rotation, to its tip, or outer diameter, thus forming the corrugation of the blade.
  • the said corrugation means that the waves, that is the alternating crests and troughs, extend along the span of the blade, and that the apexes of the crests and troughs are situated roughly within the rotational radius of the blade.
  • the crests 6 and troughs 7, shown in Figures 1, 2 and 3, may be of a semicircular shape or any other shape that is readily visible on the pressure 4 and suction 5 sides of the blade and alternates along the entire span of the blade from its root, nearest to the rotational axis 1, to its tip at the outer diameter of the blade.
  • the axial fan blade according to the invention is characterized in that, from its rotational axis to the outer blade edge, the blade exhibits a corrugated section, wherein the corrugation is of a preferably, but not exclusively, rounded-off shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention porte sur une pale de soufflante axiale à surfaces ondulées de pression (4) et de succion (5) présentant des crêtes (6) et des creux (7) visibles le long de des surfaces de pression (4) et de succion (5). La pale présente une forme ondulée/ondée. Les creux (7) et les crêtes (6) assurent un meilleur guidage du flux de fluide du bord d'attaque (2) au bord de fuite (3) le long des côtés de la pale soumis à la pression et à la succion. Ce guidage amélioré réduit la composante radiale de vitesse du flux et par là l'émission de bruit de la pale. Les ondulations renforcent par ailleurs la rigidité de la pale et de ce fait ses déformations en service.
PCT/SI2008/000030 2007-10-24 2008-05-12 Pale de soufflante axiale à surfaces ondulées de pression et de succion WO2009054815A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SIP200700275 2007-10-24
SI200700275A SI22636A (sl) 2007-10-24 2007-10-24 Lopatica aksialnega ventilatorja z valovito tlaäśno in sesalno povrĺ ino

Publications (1)

Publication Number Publication Date
WO2009054815A1 true WO2009054815A1 (fr) 2009-04-30

Family

ID=39689487

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2008/000030 WO2009054815A1 (fr) 2007-10-24 2008-05-12 Pale de soufflante axiale à surfaces ondulées de pression et de succion

Country Status (2)

Country Link
SI (1) SI22636A (fr)
WO (1) WO2009054815A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010130579A1 (fr) * 2009-05-15 2010-11-18 BSH Bosch und Siemens Hausgeräte GmbH Roue de ventilation, ventilateur avec une roue de ventilation, sèche-linge avec un ventilateur et procédé de réalisation d'une roue de ventilation
WO2012062249A1 (fr) * 2010-06-08 2012-05-18 Koppenwallner Georg E Procédé pour influencer le comportement d'écoulement de turbomachines, en particulier d'appareils soufflants ou aspirants, ainsi qu'appareils soufflants ou aspirants correspondants
EP2465771A1 (fr) 2010-12-15 2012-06-20 Eurocopter Pale pour dispositif anti-couple d'hélicoptère
CN103032376A (zh) * 2011-10-09 2013-04-10 珠海格力电器股份有限公司 轴流风叶
EP2581607A1 (fr) * 2011-10-12 2013-04-17 Lg Electronics Inc. Ventilateur à flux axial et conditionneur d'air
CN104180503A (zh) * 2013-05-20 2014-12-03 三星电子株式会社 螺旋桨式风机和具有该螺旋桨式风机的空调
EP2835538A3 (fr) * 2013-08-08 2015-08-05 Mitsubishi Electric Corporation Ventilateur à flux axial et appareil de climatisation l'utilisant
CN108087302A (zh) * 2017-12-08 2018-05-29 广东美的制冷设备有限公司 轴流风轮及空调器
CN108087333A (zh) * 2017-12-08 2018-05-29 广东美的制冷设备有限公司 轴流风轮及空调器
CN108561332A (zh) * 2017-12-30 2018-09-21 广东美的厨房电器制造有限公司 风扇和微波炉
US20190024674A1 (en) * 2015-08-31 2019-01-24 Ziehl-Abegg Se Fan wheel, fan, and system having at least one fan
EP3567258A4 (fr) * 2017-01-06 2020-08-26 Gree Electric Appliances, Inc. of Zhuhai Pale, hélice et soufflante
CN111911457A (zh) * 2016-12-28 2020-11-10 翰昂汽车零部件有限公司 轴流风扇
USD901669S1 (en) 2017-09-29 2020-11-10 Carrier Corporation Contoured fan blade
JP2022523037A (ja) * 2019-01-23 2022-04-21 ブローゼ・ファールツォイクタイレ・エスエー・ウント・コンパニ・コマンディットゲゼルシャフト・ヴュルツブルク 自動車のファンホイール

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB791563A (en) * 1955-05-02 1958-03-05 Joseph Vaghi Improvements relating to structures for use as an airplane wing, a propeller blade, a blower or fan blade
WO1992005341A1 (fr) * 1990-09-14 1992-04-02 Josef Moser Rotor
EP0992693A1 (fr) * 1998-10-08 2000-04-12 GATE S.p.A. Ventilateur axial
US20030012656A1 (en) * 2001-06-12 2003-01-16 Kyung Seok Cho Axial flow fan
WO2004079202A1 (fr) * 2003-03-05 2004-09-16 Halla Climate Control Corporation Ventilateur axial
US20050129523A1 (en) * 2003-12-11 2005-06-16 Liu Ching Wen W. Ceiling fan blade
EP1801422A2 (fr) * 2005-12-22 2007-06-27 Ziehl-Abegg AG Ventilateur et aube de ventilateur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB791563A (en) * 1955-05-02 1958-03-05 Joseph Vaghi Improvements relating to structures for use as an airplane wing, a propeller blade, a blower or fan blade
WO1992005341A1 (fr) * 1990-09-14 1992-04-02 Josef Moser Rotor
EP0992693A1 (fr) * 1998-10-08 2000-04-12 GATE S.p.A. Ventilateur axial
US20030012656A1 (en) * 2001-06-12 2003-01-16 Kyung Seok Cho Axial flow fan
WO2004079202A1 (fr) * 2003-03-05 2004-09-16 Halla Climate Control Corporation Ventilateur axial
US20050129523A1 (en) * 2003-12-11 2005-06-16 Liu Ching Wen W. Ceiling fan blade
EP1801422A2 (fr) * 2005-12-22 2007-06-27 Ziehl-Abegg AG Ventilateur et aube de ventilateur

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010130579A1 (fr) * 2009-05-15 2010-11-18 BSH Bosch und Siemens Hausgeräte GmbH Roue de ventilation, ventilateur avec une roue de ventilation, sèche-linge avec un ventilateur et procédé de réalisation d'une roue de ventilation
WO2012062249A1 (fr) * 2010-06-08 2012-05-18 Koppenwallner Georg E Procédé pour influencer le comportement d'écoulement de turbomachines, en particulier d'appareils soufflants ou aspirants, ainsi qu'appareils soufflants ou aspirants correspondants
CN104477380A (zh) * 2010-12-15 2015-04-01 空客直升机 一种用于直升飞机反扭矩装置的桨叶
EP2465771A1 (fr) 2010-12-15 2012-06-20 Eurocopter Pale pour dispositif anti-couple d'hélicoptère
FR2969120A1 (fr) * 2010-12-15 2012-06-22 Eurocopter France Pale amelioree pour dispositif anti-couple d'helicoptere
CN102556344A (zh) * 2010-12-15 2012-07-11 尤洛考普特公司 一种用于直升飞机反扭矩装置的桨叶
EP2962934A1 (fr) 2010-12-15 2016-01-06 Airbus Helicopters Pale à ligne d empilement incurvée pour rotor anticouple
US9162749B2 (en) 2010-12-15 2015-10-20 Airbus Helicopters Blade for a helicopter anti-torque device
US8974189B2 (en) 2010-12-15 2015-03-10 Airbus Helicopters Blade for a helicopter anti-torque device
CN103032376A (zh) * 2011-10-09 2013-04-10 珠海格力电器股份有限公司 轴流风叶
CN103032376B (zh) * 2011-10-09 2015-12-09 珠海格力电器股份有限公司 轴流风叶
CN103047180A (zh) * 2011-10-12 2013-04-17 Lg电子株式会社 轴流风扇和空调
EP2581607A1 (fr) * 2011-10-12 2013-04-17 Lg Electronics Inc. Ventilateur à flux axial et conditionneur d'air
EP2806221A3 (fr) * 2013-05-20 2014-12-17 Samsung Electronics Co., Ltd Ventilateur à hélice et climatiseur le comportant
CN104180503A (zh) * 2013-05-20 2014-12-03 三星电子株式会社 螺旋桨式风机和具有该螺旋桨式风机的空调
EP2835538A3 (fr) * 2013-08-08 2015-08-05 Mitsubishi Electric Corporation Ventilateur à flux axial et appareil de climatisation l'utilisant
US11371529B2 (en) * 2015-08-31 2022-06-28 Ziehl-Abegg Se Fan wheel, fan, and system having at least one fan
US20190024674A1 (en) * 2015-08-31 2019-01-24 Ziehl-Abegg Se Fan wheel, fan, and system having at least one fan
US11105337B2 (en) 2016-12-28 2021-08-31 Hanon Systems Axial flow fan
CN111911457A (zh) * 2016-12-28 2020-11-10 翰昂汽车零部件有限公司 轴流风扇
US11078921B2 (en) 2017-01-06 2021-08-03 Gree Electric Appliances, Inc. Of Zhuhai Blade, impeller and fan
EP3567258A4 (fr) * 2017-01-06 2020-08-26 Gree Electric Appliances, Inc. of Zhuhai Pale, hélice et soufflante
USD916269S1 (en) 2017-09-29 2021-04-13 Carrier Corporation Compressor fan having a contoured fan blade
USD901669S1 (en) 2017-09-29 2020-11-10 Carrier Corporation Contoured fan blade
CN108087302A (zh) * 2017-12-08 2018-05-29 广东美的制冷设备有限公司 轴流风轮及空调器
CN108087333A (zh) * 2017-12-08 2018-05-29 广东美的制冷设备有限公司 轴流风轮及空调器
CN108561332B (zh) * 2017-12-30 2019-12-17 广东美的厨房电器制造有限公司 风扇和微波炉
CN108561332A (zh) * 2017-12-30 2018-09-21 广东美的厨房电器制造有限公司 风扇和微波炉
JP2022523037A (ja) * 2019-01-23 2022-04-21 ブローゼ・ファールツォイクタイレ・エスエー・ウント・コンパニ・コマンディットゲゼルシャフト・ヴュルツブルク 自動車のファンホイール

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Publication number Publication date
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