EP0181481A1 - Ventilateur axial - Google Patents

Ventilateur axial Download PDF

Info

Publication number
EP0181481A1
EP0181481A1 EP85112528A EP85112528A EP0181481A1 EP 0181481 A1 EP0181481 A1 EP 0181481A1 EP 85112528 A EP85112528 A EP 85112528A EP 85112528 A EP85112528 A EP 85112528A EP 0181481 A1 EP0181481 A1 EP 0181481A1
Authority
EP
European Patent Office
Prior art keywords
wing
fan
axial fan
deflecting
confuser
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.)
Withdrawn
Application number
EP85112528A
Other languages
German (de)
English (en)
Inventor
Zoltán Dipl.-Ing. Brúzer
Oszkár Dipl.-Ing. Fellner
Géza Dipl.-Ing. Hatos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Csepel Autogyar
Original Assignee
Csepel Autogyar
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 Csepel Autogyar filed Critical Csepel Autogyar
Publication of EP0181481A1 publication Critical patent/EP0181481A1/fr
Withdrawn legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to an axial fan which may be surrounded by a confuser and is used, for example, in the cooling system of a motor vehicle.
  • the aim of the invention is to reduce the flow losses, i.e. to increase the efficiency of the fan.
  • the invention is based on the knowledge that the component of the crossflow can be influenced favorably by means of deflection vanes arranged on the fan blades and that a more orderly flow can be ensured in the zone behind the fan.
  • the invention therefore relates to an axial fan, wherein at least one deflecting wing projecting from the wing plane is arranged in the outer third of the wing, at least on one of its sides.
  • the leading edge of the deflector blade is formed closer to the center of the fan than its trailing edge, and the blade angle of the deflector blade has a minimum value of 0 ° at the leading edge and the flow angle of the deflector blade is in the range of 10 and 25 °.
  • the deflector blade is arranged on the suction side of the fan.
  • the deflection wing is convex to the center of the fan.
  • two deflection blades are arranged on the same surface of the blade, the distance between the leading edges of the deflection blades being 0.3-0.6 times the width measurable in this area of the blade and the ratio of Distance between the leading edges and between the trailing edges is between the values of 1 to 2.
  • a confuser is arranged on the fan in a manner known per se, the distance between the trailing edge of the confuser and the contact plane of the axial fan close to the confuser being 1 to 2 times the width of the deflector blades.
  • a blade 1 of a motor vehicle cooling fan made of sheet metal is shown seen from the suction side.
  • an outer deflection wing 2 and an inner deflection wing 5 are attached to the wing 1.
  • Both deflection wings 2 and 5 are slightly curved, i.e. to the center "0" of the axial fan is convex.
  • the height "t" of the deflector blades was 0.085 times the width "S" of the blade 1. It was later observed that it was disadvantageous to use straight or mutually curved deflector blades, because otherwise the Flow and direction change losses become too high.
  • the arrangement of the deflecting vanes is as follows:
  • the arrangement of the deflecting vanes is characterized by the angles referred to as the wing angle and the flow angle, which mean the following:
  • the wing angle a is an angle which can be created by a tangent 7 and a going through the same point, to the same point of a circle with the center point "0" of the fan signable Tan gente 8 is included, and the flow angle ß is a through a connecting the leading edge 3 and the trailing edge 4 of the deflector 9 and a im Intersection of the center line of the wing 1 to this center line straight line 10 included angle.
  • the wing angle ⁇ can only be 0 ° or, expediently, a larger positive angle because, in the opposite case, separation occurs at the deflection blades, which leads to a deterioration in the aerodynamic characteristics.
  • the appropriate flow angle ⁇ is in the range of 10 ° and 25 °, since below the value of 10 ° there is no increase in efficiency, and above the value of 25 ° there is an increase in loss of direction.
  • two deflection blades are arranged in the axial fan shown as an exemplary embodiment.
  • an inner deflecting wing 5 should be dimensioned on the basis of the same criteria as an outer deflecting wing 2, only its position relative to one another is determined below. This is characterized by the distance "X" between the leading edges 3 and 11 and the distance "Y" between the leading edges 4 and 12, or by their relationship to one another.
  • the deflection vanes are arranged on the suction side of the fan.
  • the deflector wings can of course also be arranged on the pressure side, even on both sides. While all three arrangements bring about an improvement, the axial fan with the deflection blades arranged on the suction side shows the best result.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP85112528A 1984-10-24 1985-10-03 Ventilateur axial Withdrawn EP0181481A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU843958A HUT38991A (en) 1984-10-24 1984-10-24 Axial-flow ventilator
HU395884 1984-10-24

Publications (1)

Publication Number Publication Date
EP0181481A1 true EP0181481A1 (fr) 1986-05-21

Family

ID=10966234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112528A Withdrawn EP0181481A1 (fr) 1984-10-24 1985-10-03 Ventilateur axial

Country Status (5)

Country Link
EP (1) EP0181481A1 (fr)
CN (1) CN85107477A (fr)
DD (1) DD238256A5 (fr)
ES (1) ES8801411A1 (fr)
HU (1) HUT38991A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188375B (en) * 1986-03-28 1990-12-05 Gold Star Co An impeller construction for an electric fan
CN1053488C (zh) * 1993-08-02 2000-06-14 赫德森产品公司 压制成的铝风机叶片

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100425843C (zh) * 2003-07-02 2008-10-15 奇鋐科技股份有限公司 风向出口控制装置
CN101307781A (zh) * 2003-07-22 2008-11-19 奇鋐科技股份有限公司 风向出口控制装置
CN103161758A (zh) * 2013-03-25 2013-06-19 广西柳工机械股份有限公司 有叶风扇

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2756880A1 (de) * 1976-12-20 1978-06-22 Toyoda Chuo Kenkyusho Kk Axialventilator mit hilfsfluegeln
DE2756800A1 (de) * 1976-12-20 1978-06-22 Toyoda Chuo Kenkyusho Kk Axialventilator mit hilfsfluegeln
GB2008677A (en) * 1977-11-22 1979-06-06 Toyoda Chuo Kenkyusho Kk Axial flow fan with auxiliary blades

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2756880A1 (de) * 1976-12-20 1978-06-22 Toyoda Chuo Kenkyusho Kk Axialventilator mit hilfsfluegeln
DE2756800A1 (de) * 1976-12-20 1978-06-22 Toyoda Chuo Kenkyusho Kk Axialventilator mit hilfsfluegeln
GB2008677A (en) * 1977-11-22 1979-06-06 Toyoda Chuo Kenkyusho Kk Axial flow fan with auxiliary blades

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188375B (en) * 1986-03-28 1990-12-05 Gold Star Co An impeller construction for an electric fan
CN1053488C (zh) * 1993-08-02 2000-06-14 赫德森产品公司 压制成的铝风机叶片

Also Published As

Publication number Publication date
DD238256A5 (de) 1986-08-13
ES8801411A1 (es) 1986-09-01
ES547865A0 (es) 1986-09-01
HUT38991A (en) 1986-07-28
CN85107477A (zh) 1986-07-02

Similar Documents

Publication Publication Date Title
DE3412916C2 (de) Lüfterflügel
EP0137956B1 (fr) Séparateur de gouttes pour séparer des gouttes d'un courant gazeux
DE69410186T2 (de) Gebläseschaufel
DE3104203C2 (fr)
DE1934246A1 (de) Grenzschichtenkontrolle fuer Fliessabtrennung und Waermeaustausch
DE3730620A1 (de) Scheibenwischer
EP0043452A2 (fr) Dispositif de réglage pour compresseurs axiaux
DE2602451B2 (de) Laufrad fuer einen zentrifugalkompressor von gasturbinen-motoren
DE3227997C2 (de) Schaufel für Lüfter von Landfahrzeugen
DE602004008811T2 (de) Axiallüfter
DE3424010C2 (fr)
DE60120708T2 (de) Kreisellüfter
DE10346666A1 (de) Weiterentwickeltes Kompressor-Flügelprofil mit großer Umlenkung
DE20307462U1 (de) Strukturell verstärkter Rotor für einen Ventilator, insbesondere Mischstromventilator
DE3014872A1 (de) Mehrfluegeliges ventilatorrad
DE68916040T2 (de) Schiffsschraube.
DE2040382A1 (de) Belueftungsregulator
DD238256A5 (de) Axialluefter
DE69209484T3 (de) Lüfter mit konvexen Schaufeln
DE2327125B2 (de) Axialventilator mit gehaeuse
EP0929782A1 (fr) Lamelles en zigzague servant de nervures pour echangeurs de chaleur a tubes aplatis pour vehicules a moteur
EP0132780A1 (fr) Ventilateur tangentiel avec une augmentation de vitesse de fluide, près des parois du raccord de pression
DE3923779A1 (de) Fluegelrad
EP0266802B1 (fr) Hélice carenée
DE102023108565B3 (de) Luftfahrzeugpropeller und Luftfahrzeug

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE FR GB IT NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19861121

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BRUZER, ZOLTAN, DIPL.-ING.

Inventor name: HATOS, GEZA, DIPL.-ING.

Inventor name: FELLNER, OSZKAR, DIPL.-ING.