EP3198152B1 - Ventilateur axial pour véhiculer de l'air de refroidissement, en particulier pour un moteur à combustion interne de véhicule à moteur - Google Patents

Ventilateur axial pour véhiculer de l'air de refroidissement, en particulier pour un moteur à combustion interne de véhicule à moteur Download PDF

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Publication number
EP3198152B1
EP3198152B1 EP15759822.8A EP15759822A EP3198152B1 EP 3198152 B1 EP3198152 B1 EP 3198152B1 EP 15759822 A EP15759822 A EP 15759822A EP 3198152 B1 EP3198152 B1 EP 3198152B1
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EP
European Patent Office
Prior art keywords
section
axial fan
contour
fan
blade edge
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.)
Active
Application number
EP15759822.8A
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German (de)
English (en)
Other versions
EP3198152A1 (fr
Inventor
Uwe Blass
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.)
Mahle International GmbH
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Mahle International GmbH
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Publication date
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Publication of EP3198152A1 publication Critical patent/EP3198152A1/fr
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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
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • 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
    • F04D29/18—Rotors
    • F04D29/181—Axial flow rotors
    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade

Definitions

  • the invention relates to an axial fan for conveying cooling air, in particular for an internal combustion engine of a motor vehicle, comprising a hub on which a plurality of fan blades extending radially outward are arranged, each having a rear edge of the blade.
  • an axial guide ring fan which has a central hub, an annular jacket and a number of blades, the blades extending radially between the hub and the jacket.
  • the blades which will also be referred to as fan blades in the following, are set forward in the direction of fan rotation and have a front edge and a rear edge.
  • an axial fan which comprises a hub on which a pressure and a suction side, a trailing edge and a Blade depth having fan blades are arranged.
  • this axial fan has on the pressure side of the fan blades a hub ramp that rises against the direction of rotation of the axial fan, whereby the rear edge of the fan blades is divided into an outer area located radially outside the hub ramp and a radially inner area located inside the hub ramp.
  • the DE 37 05 689 A1 discloses an axial fan according to the preamble of claim 1.
  • the JP 5489304 A discloses an axial fan according to the preamble of claim 1.
  • One embodiment of the invention relates to an axial fan for conveying cooling air, in particular for an internal combustion engine of a motor vehicle, with a hub on which a plurality of fan blades extending radially outward are arranged, each having a rear edge of the blade, the rear edge of the fan blades being curved in the circumferential direction run and at a section of the rotational profile of the axial fan with a plane E, which is spanned by the axis of rotation of the axial fan and the radial extension H of the fan blade, a contour of the blade trailing edge emerges on the plane E, which is divided into three sections in its radial extension is formed, wherein the middle section runs essentially straight, while the each adjoining the middle section first and third sections are curved.
  • This has the advantage that the efficiency of the axial fan is increased, the flow performance of the axial fan being maintained.
  • the contour of the rear edge of the sheet runs in its radial extension in three sections, the middle section being essentially straight or approximately straight, while the first and third sections adjoining the middle section are curved. Due to the semi-radial flow through the fan blade under the given conditions, there is a very good compromise between flow performance and static efficiency.
  • the first outer section of the rear edge of the blade facing away from the hub is curved with a first radius and the third section of the rear edge of the blade, which adjoins the hub, is curved with a second radius.
  • the second radius of the third section and / or the first radius of the first section of the trailing edge of the sheet merge tangentially into the straight middle section of the contour of the trailing edge of the sheet. This has a positive influence on the direction of the flow in the area of the trailing edge of the blade.
  • the trailing edge of the blade is adjusted in the area of predominant flow losses in such a way that both a good pressure build-up and a good degree of efficiency can be achieved.
  • a second ratio between the first radius of the first section and the second radius of the third section of the contour of the trailing edge of the sheet is between 3 and 4.
  • the second and third sections of the contour of the rear edge of the blade extend approximately over a quarter of the radial extent of the fan blade, which further increases the efficiency of the axial fan.
  • a further embodiment allows the first section of the contour of the rear edge of the blade facing away from the hub to extend over approximately half of the radial extent of the fan blade. This configuration also supports the setting of an optimal ratio between the efficiency and the flow rate of the axial fan.
  • the Figures 1, 2 and 3 show a first embodiment of an axial fan 1 according to the invention.
  • the axial fan 1 consists of a central hub 2 and an annular jacket 3, between which several fan blades 4 are arranged.
  • Each fan blade 4 has a blade leading edge 7 arranged at the bottom in the direction of rotation and an upper blade trailing edge 8.
  • the contour 9 of the trailing edge 8 of the fan blade 4 is shown in FIG Fig. 4 shows where a plane E is spanned by the axis of rotation of the axial fan 1 and the radial extension H of the fan blade 4. If this plane E is intersected with the rotation profile of the axial fan 1, a contour 9 of the blade trailing edge 8 of the fan blade 4 results, which is divided into three sections.
  • a first outer section 91 of the contour 9 of the sheet trailing edge 8 is curved and described by a first radius R1.
  • This radius R1 is followed by a central section 92 of the contour 9 of the trailing edge 8 of the sheet, which is straight.
  • the straight section 92 adjoins a third inner section 93 of the contour 9 of the blade trailing edge 8, which is directly adjacent to the hub 2.
  • the contour 9 in the third section 93 of the sheet trailing edge 8 is curved and can be described by a second radius R2.
  • the middle and third sections 92, 93 of the contour 9 of the blade trailing edge 8 extend over approximately a quarter of the radial extension H of the fan blade 4.
  • the first outer section 91 of the contour 9 of the blade trailing edge 8, facing away from the hub 2, runs approximately in the direction outer half of the radial extension H of the fan blade.
  • the curved first and curved third sections 91, 93 adjoin the straight line tangentially to the straight central section 92 of the rear edge 8 of the sheet.
  • a first ratio of the radius R1 of the first outer section 91 of the contour 9 of the blade trailing edge 8 and the radial extension H of the fan blade 4 is between 0.8 and 1.2 Select. This optimization is supported if the ratio between the first radius R1 of the first section 91 and the second radius R2 of the third section 93 is in the range between 3 and 4.

Landscapes

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

Claims (7)

  1. Ventilateur axial pour le transport d'air de refroidissement, en particulier pour un moteur à combustion interne d'un véhicule automobile, ledit ventilateur axial comprenant un moyeu (2) sur lequel est disposée une pluralité de pales de ventilateur (4) s'étendant vers l'extérieur dans le sens radial, pales qui présentent respectivement un bord arrière de pale (8), caractérisé en ce que les bords arrière (8) des pales (4) du ventilateur s'étendent de façon courbée dans la direction circonférentielle et, dans le cas d'une coupe du profil de rotation du ventilateur axial, avec un plan (E) qui est défini par l'axe de rotation du ventilateur axial et par l'étendue radiale H de la pale de ventilateur, se profile, sur le plan (E), un contour (9) du bord arrière (8) de la pale, bord qui est configuré en étant subdivisé en trois parties (91, 92, 93) dans son étendue radiale, où la partie centrale (92) s'étend pratiquement de façon rectiligne, tandis que les première et troisième parties (91, 93), qui se rattachent respectivement à la partie centrale (92), s'étendent de façon courbée.
  2. Ventilateur axial selon la revendication 1, caractérisé en ce que la première partie extérieure (91) du contour (9) du bord arrière (8) de la pale est courbée, ladite première partie ayant un premier rayon (R1) et étant placée à l'opposé du moyeu (2), et la troisième partie (93) du bord arrière (8) de la pale est courbée, ladite troisième partie ayant un deuxième rayon (R2) et se rattachant au moyeu (2).
  3. Ventilateur axial selon la revendication 2, caractérisé en ce que le deuxième rayon (R2) de la troisième partie (93) et/ou le premier rayon (R1) de la première partie (91) du contour (9) du bord arrière (8) de la pale passent tangentiellement dans la partie centrale (92) du contour (9) du bord arrière (8) de la pale, ladite partie centrale étant configurée de façon rectiligne.
  4. Ventilateur axial selon la revendication 2 ou 3, caractérisé en ce qu'un premier rapport du premier rayon (R1) de la première partie (91) du contour (9) du bord arrière (8) de la pale, relativement à l'étendue radiale totale (H) de la pale (4) du ventilateur, est compris entre 0,8 et 1,2.
  5. Ventilateur axial selon la revendication 2, 3 ou 4, caractérisé en ce qu'un deuxième rapport entre le premier rayon (R1) de la première partie (91) et le deuxième rayon (R2) de la troisième partie (93) du contour (9) du bord arrière (8) de la pale est compris entre 3 et 4.
  6. Ventilateur axial selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la deuxième et la troisième partie (92, 93) du contour (9) du bord arrière (8) de la pale s'étendent respectivement à peu près sur un quart de l'étendue radiale (H) de la pale (4) du ventilateur.
  7. Ventilateur axial selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la première partie (91) du contour (9) du bord arrière (8) de la pale s'étend à peu près sur la moitié de l'étendue radiale (H) de la pale (4) du ventilateur, ladite première partie étant placée à l'opposé du moyeu (2).
EP15759822.8A 2014-09-22 2015-09-10 Ventilateur axial pour véhiculer de l'air de refroidissement, en particulier pour un moteur à combustion interne de véhicule à moteur Active EP3198152B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014219023.1A DE102014219023A1 (de) 2014-09-22 2014-09-22 Axiallüfter zur Förderung von Kühlluft, insbesondere für einen Verbrennungsmotor eines Kraftfahrzeuges
PCT/EP2015/070701 WO2016045978A1 (fr) 2014-09-22 2015-09-10 Ventilateur axial pour véhiculer de l'air de refroidissement, en particulier pour un moteur à combustion interne de véhicule à moteur

Publications (2)

Publication Number Publication Date
EP3198152A1 EP3198152A1 (fr) 2017-08-02
EP3198152B1 true EP3198152B1 (fr) 2021-07-21

Family

ID=54064370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15759822.8A Active EP3198152B1 (fr) 2014-09-22 2015-09-10 Ventilateur axial pour véhiculer de l'air de refroidissement, en particulier pour un moteur à combustion interne de véhicule à moteur

Country Status (6)

Country Link
US (1) US10508652B2 (fr)
EP (1) EP3198152B1 (fr)
JP (1) JP2017528650A (fr)
CN (1) CN106687692A (fr)
DE (1) DE102014219023A1 (fr)
WO (1) WO2016045978A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD860427S1 (en) 2017-09-18 2019-09-17 Horton, Inc. Ring fan
US11767761B2 (en) 2018-08-02 2023-09-26 Horton, Inc. Low solidity vehicle cooling fan

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937189A (en) * 1974-01-28 1976-02-10 International Harvester Company Fan shroud exit structure
JPS51134906A (en) * 1975-05-20 1976-11-22 Komatsu Ltd Cooling fan for engine
JPS5489304A (en) * 1977-12-27 1979-07-16 Nippon Denso Co Ltd Engine cooling device of vehicle
EP0026997A1 (fr) * 1979-10-09 1981-04-15 General Motors Corporation Conduite d'air pour ventilateur de refroidissement de moteurs à combustion interne

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703556A (en) * 1948-10-09 1955-03-08 Torrington Mfg Co Rotary fan and fan and orifice assembly
JPS6021518Y2 (ja) * 1980-03-07 1985-06-26 アイシン精機株式会社 内燃機関の冷却装置用フアン
IT206701Z2 (it) * 1985-08-02 1987-10-01 Gate Spa Ventilatore assiale particolarmente per autoveicoli
JPS62195494A (ja) * 1986-02-21 1987-08-28 Aisin Seiki Co Ltd 内燃機関用冷却装置
DE3724319A1 (de) * 1987-07-22 1989-02-09 Klifa Gmbh & Co Luefterrad fuer ein kuehlgeblaese
US4915588A (en) 1989-06-08 1990-04-10 Siemens-Bendix Automotive Electronics Limited Axial flow ring fan with fall off
US5244347A (en) * 1991-10-11 1993-09-14 Siemens Automotive Limited High efficiency, low noise, axial flow fan
US5193608A (en) * 1992-03-25 1993-03-16 Toyo Radiator Co., Ltd. Radiator with fan for motor vehicles
US5393199A (en) * 1992-07-22 1995-02-28 Valeo Thermique Moteur Fan having a blade structure for reducing noise
US5326226A (en) * 1993-05-28 1994-07-05 Philadelphia Mixers Corporation Continuous curve high solidity hydrofoil impeller
JP4700414B2 (ja) 2005-06-02 2011-06-15 本田技研工業株式会社 空冷内燃機関用多翼ファン
DE102006023417A1 (de) * 2006-05-17 2007-11-22 Ford Global Technologies, LLC, Dearborn Lüfterrad als Bestandteil eines Lüfters zur Kühlung eines Kraftfahrzeugantriebs
DE102010062301A1 (de) 2010-12-01 2012-06-06 Behr Gmbh & Co. Kg Axiallüfter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937189A (en) * 1974-01-28 1976-02-10 International Harvester Company Fan shroud exit structure
JPS51134906A (en) * 1975-05-20 1976-11-22 Komatsu Ltd Cooling fan for engine
JPS5489304A (en) * 1977-12-27 1979-07-16 Nippon Denso Co Ltd Engine cooling device of vehicle
EP0026997A1 (fr) * 1979-10-09 1981-04-15 General Motors Corporation Conduite d'air pour ventilateur de refroidissement de moteurs à combustion interne

Also Published As

Publication number Publication date
US20170184112A1 (en) 2017-06-29
JP2017528650A (ja) 2017-09-28
WO2016045978A1 (fr) 2016-03-31
CN106687692A (zh) 2017-05-17
DE102014219023A1 (de) 2016-03-24
US10508652B2 (en) 2019-12-17
EP3198152A1 (fr) 2017-08-02

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