EP2236837A2 - Ventilateur axial, en particulier pour un véhicule automobile - Google Patents

Ventilateur axial, en particulier pour un véhicule automobile Download PDF

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Publication number
EP2236837A2
EP2236837A2 EP20100157118 EP10157118A EP2236837A2 EP 2236837 A2 EP2236837 A2 EP 2236837A2 EP 20100157118 EP20100157118 EP 20100157118 EP 10157118 A EP10157118 A EP 10157118A EP 2236837 A2 EP2236837 A2 EP 2236837A2
Authority
EP
European Patent Office
Prior art keywords
axial
axial fan
flow guide
fan
fan according
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.)
Granted
Application number
EP20100157118
Other languages
German (de)
English (en)
Other versions
EP2236837A3 (fr
EP2236837B1 (fr
Inventor
Andreas Kleber
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 Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP2236837A2 publication Critical patent/EP2236837A2/fr
Publication of EP2236837A3 publication Critical patent/EP2236837A3/fr
Application granted granted Critical
Publication of EP2236837B1 publication Critical patent/EP2236837B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D29/384—Blades characterised by 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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F04D29/526—Details of the casing section radially opposing blade tips
    • 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
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the invention relates to an axial fan according to the preamble of claim 1.
  • Axial fans are used as cooling fans in motor vehicles, wherein the axial fan is arranged in the air flow direction behind a heat exchanger or a group of heat exchangers and sucks ambient air for cooling purposes by the one or more heat exchangers.
  • the axial fan runs in a Zargenring, ie a stationary casing, wherein the Zargenring is part of a frame or fan cowl, which adjoins the heat exchanger or the group of heat exchangers.
  • the internal combustion engine of the motor vehicle and auxiliary units of the internal combustion engine are arranged, forming the non-uniform obstacles in the outflow of the axial fan.
  • the Nachleitapparat comprises on the one hand a diffuser and on the other hand substantially radially extending flow guide elements, which extend from the root of the fan blades to the outer diameter of the diffuser.
  • the radial flow guide elements as well as the diffuser are arranged downstream of the fan exit plane, so that a relatively large axial installation depth also results here.
  • This also applies to a further embodiment in which radially extending flow guide surfaces are arranged radially outside the fan and the Zargenringes.
  • the fan blades form a blade overhang relative to the frame ring and that flow line elements are arranged radially outside the fan blades and in the region of the blade projection.
  • the blade tips of the fan blades are thus not sheathed in the outflow region, the area of the blade projection, the Zargenring, but run free in this area.
  • Due to the blade projection a radially directed fan outflow already forms in the blade tip region, which impinges on the flow guide elements arranged radially outside. This achieves the advantage that the flow generated by the fan in the blade tip region delays, that the swirl is taken out of the fan outflow and converted into static pressure (pressure recovery). The energy of the swirl flow in Lunderabströmfeld is thus not lost.
  • the flow guide elements are substantially radially aligned, or they have a radial and tangential course.
  • the fan exhaust air can thus be dissipated lossless from the engine compartment.
  • the conversion of the swirl flow is effected in static pressure, and the outflowing air is advantageously derived.
  • the flow guide elements preferably have curved guide surfaces, wherein a two-dimensional curvature or also a three-dimensional curvature can be advantageous.
  • Two-dimensional curvature means that parallel radial sections have the same curvature - such as in a cylindrical surface.
  • Three-dimensional curvature means that parallel radial sections through the flow guide surfaces do not have the same but different curvatures.
  • the flow control surfaces are additionally wound in the axial direction.
  • the flow guide elements are arranged distributed in sections or in groups on the circumference.
  • a first group of flow directors may be disposed above the fan, while a second group of flow directors may be approximately diametrical to the first group, i. H. is arranged in the lower fan area.
  • the selective arrangement and the individual geometry of the flow guide elements takes place in adaptation to the local outflow field, d. H. the arrangement and design of the downstream flow obstacles such as internal combustion engine and their additional aggregates. This achieves high efficiency in reducing pressure losses with minimal structural complexity.
  • the flow guide elements terminate with their trailing edges flush with the trailing edges of the fan blades.
  • a gain in axial space is achieved, since the flow control elements are thus arranged within the axial depth of the fan blades.
  • the axial depth of the flow guide elements corresponds to the blade projection. This results in an optimal interaction of the blade tip flow with the flow guide elements.
  • the outlet side of the Zargenringes is formed as a diffuser.
  • a further pressure recovery is achieved by delaying the fan outlet flow, with support the flow guide and the diffuser in their effect.
  • the flow guide are attached to the Zargenring, which is possible without great structural complexity.
  • the flow guide can be integrated into the Zargenring and integrally formed therewith, preferably be screwed as a plastic injection molded part or as a sprayed assemblies to a metal ring.
  • the axial fan is attached to the internal combustion engine of a motor vehicle and is driven by the internal combustion engine, for example directly by the crankshaft or via an intermediate drive.
  • the axial fan is thus arranged fixed to the engine, which is particularly advantageous for commercial vehicles.
  • the Zargenring and the flow guide are attached to the internal combustion engine.
  • the Zargenring and the flow guide are attached to the internal combustion engine.
  • the axial fan, the Zargenring and the flow guide may be attached to a frame or fan cowl of a heat exchanger, preferably a coolant radiator of an internal combustion engine of a motor vehicle, d. H. the axial fan is arranged "cooler".
  • the axial fan is preferably driven by an electric motor, which in turn is attached to the fan cover.
  • the cooler-fixed arrangement is for low-weight axial fans, i. H. advantageous for smaller vehicles.
  • Fig. 1a, 1b, 1c show as a first embodiment of the invention, an axial fan 1, which in a stationary arranged Zargenring, 2 (also called guide ring or jacket), is rotatably arranged.
  • the axial fan 1 comprises fan blades 3 designed as axial blades and a fan hub 4, which is connected to a fan clutch, not shown, preferably a fluid friction clutch.
  • the axial fan 1, hereinafter also referred to as fan 1 for short is fastened in relation to an internal combustion engine, not shown, of a motor vehicle and is preferably driven directly by the internal combustion engine, ie via an unillustrated crankshaft of the internal combustion engine.
  • An indirect drive via a trained example as V-belt drive intermediate drive is also possible.
  • the axial fan 1 is thus arranged fixed to the motor.
  • the Zargenring 2 has a substantially cylindrically shaped Ringfikiee 2a, which the fan blades 3 in the axial direction, that is partially coated in the direction of the fan axis.
  • the annular surface 2a is in the axial direction ( Fig. 1c ) bounded by a front edge 2b and a trailing edge 2c.
  • the fan 1 and the frame ring 2 are separated from ambient air in the direction of an arrow L (FIG. Fig. 1b ) flows through.
  • the back 2 d distributed over the circumference flow guide elements 5 are arranged, which have a two-dimensional curvature about axially parallel axes.
  • the flow guide elements 5 form blade-like, extending in the radial and tangential direction cylindrical surfaces. In the illustrated embodiment ( Fig. 1a ), the flow guide elements 5 are arranged distributed uniformly over the circumference.
  • the back 2d of the Zargenringes 2 is conical and thus forms a diffuser 6 for the exiting the fan 1 air flow.
  • the fan blades 3 have outflow edges 3b, which project beyond the frame ring 2 in the air flow direction L.
  • the distance between the trailing edge 2c of the annular surface 2a and the trailing edge 3b of the fan blades 3 is referred to as blade projection ü.
  • the blade tips 3a are therefore not encased in the region of the blade projection ü by the annular surface 2a, but arranged free-running.
  • the flow guide elements 5 are arranged in the axial region of the blade projection ü and have trailing edges 5a, which terminate flush with the trailing edges 3a, ie the trailing edges 3b of the fan blades 3 and the trailing edges 5a of the flow guide elements 5 lie in a common radial plane. This means that the flow guide 5 compared to the (axial) depth of the fan blades 3 claim no additional axial space.
  • the blade projection is preferably 15 to 60% of the total depth of the fan blades 3.
  • the Zargenring 2 and the flow guide 5 can be integrally formed according to a preferred embodiment, in particular as a plastic injection molded part.
  • Fig. 2a and Fig. 2b show as a second embodiment of the invention, an axial fan 7, which rotates in a stationary, preferably motor-fixed arranged Zargenring 8.
  • the axial fan 7 points to a fan hub 9 fixed fan blades 10, which in the axial direction over a depth T ( Fig. 2b ).
  • the frame ring 8 has a cylindrically shaped region 8a, which surrounds the fan blades 10 in their upstream region and terminates approximately flush with a fan inlet plane EE.
  • the fan blades 10 protrude in the air flow direction L beyond the cylindrical region 8a and form a blade projection Ü, which is preferably in a range of 15 to 60% of the depth T of the fan blades 10.
  • a flow-guiding element 11 is arranged radially outside the blade tip 10a, which is additionally shown as a flow-guiding element 11a in a view from below and as a flow-guiding element 11b in a view from the rear.
  • 11a, 11b shows that the flow guide 11 is three-dimensionally curved, ie parallel radial sections (perpendicular to the fan axis) through the flow guide 11 have different curvatures, in particular a twist in the axial direction.
  • Fig. 2a shows a rear view of the arrangement of the flow guide elements 11 on the circumference of the Zargenringes 8.
  • a first group I of ten flow guide elements 11 (the number 10 is an example) is disposed in the upper region of the axial fan 7, and a second group II of six Flow guide elements 11 (the number 6 also as an example) is arranged in the lower, lateral region of the axial fan 7.
  • the frame ring 8 has radially extending flange sections 8b.
  • the arrangement of the Strämungsleifimplantation 11 in groups I, II, that is distributed in sections on the circumference of the Zargenringes 8, takes place in adaptation to the downstream of the axial fan 7, disturbed by flow obstacles Abströmfeld.
  • a targeted, effective influencing the fan flow is realized, by selective arrangement of the flow guide elements 11 on the circumference, by their number on a peripheral portion and optionally by a different geometry (curvature) of the guide surfaces of the flow guide 11.
  • the latter need not, though denoted by the same reference numeral 11, have an identical geometry.
  • Fig. 3 shows a perspective view from the front of the axial fan 7 according to Fig. 2a and Fig. 2b including Zargenring 8 and attached thereto, arranged in groups I, II flow guide 11.
  • the axial fan 7 is fixed to an internal combustion engine 12 and is driven by a crankshaft, not shown, and connected to the fan hub 9 fan clutch 13.
  • the frame ring 8 and the attached flow guide elements 11 can - which is not shown - also be connected to the internal combustion engine 12. This results in the advantage that a narrow circumferential gap can be maintained between the axial fan 7 and the frame ring 8.
  • the internal combustion engine 12 is located in the outflow field of the axial fan 7 and represents a significant interference obstacle for the exiting fan flow.
  • the flow-passage elements 11 are arranged in a group I, especially in the upper region of the axial fan 7.
  • the "blocking" is "neutralized” by the upper region 12a of the internal combustion engine 12, in that the air flow emerging from the fan 7 in the region 12a is selectively deflected into a radial or also a radial and a tangential flow direction.
  • the fan outlet air can thus be specifically led out of the engine compartment past the mentioned flow obstacles and with substantially reduced pressure losses.
  • a recirculation and re-suction of already heated air can be avoided in this way.
  • the second group II of flow guide elements 11 in a peripheral region which is arranged approximately diametrically to the arrangement of the first group I, a locally limited, adapted to the downstream flow conditions influencing the fan outflow is also achieved.
  • the arrangement of the groups I, II shows an embodiment of many possible, ie in a different "silhouette" of the internal combustion engine and its auxiliary units may be required a different arrangement and design of the air guide elements.
  • the axial fan is arranged fixed to the engine and driven by the internal combustion engine
  • the axial fan is arranged "cooler solid", that is connected via a radiator frame (also called fan cowl) with a designed as a coolant radiator heat exchanger and secured against this.
  • the drive of the axial fan would be done in this case preferably via an also connected to the fan guard electric motor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP10157118.0A 2009-03-31 2010-03-19 Ventilateur axial, en particulier pour un véhicule automobile Not-in-force EP2236837B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009015104A DE102009015104A1 (de) 2009-03-31 2009-03-31 Axiallüfter, insbesondere für ein Kraftfahrzeug

Publications (3)

Publication Number Publication Date
EP2236837A2 true EP2236837A2 (fr) 2010-10-06
EP2236837A3 EP2236837A3 (fr) 2014-10-01
EP2236837B1 EP2236837B1 (fr) 2017-09-20

Family

ID=42154840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10157118.0A Not-in-force EP2236837B1 (fr) 2009-03-31 2010-03-19 Ventilateur axial, en particulier pour un véhicule automobile

Country Status (3)

Country Link
US (1) US8459967B2 (fr)
EP (1) EP2236837B1 (fr)
DE (1) DE102009015104A1 (fr)

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DE102010038950A1 (de) * 2010-08-05 2012-02-09 Behr Gmbh & Co. Kg Axiallüfter
DE102011121624B4 (de) 2011-12-20 2019-03-28 Man Truck & Bus Ag Nachleitapparat nach Lüftereinrichtung für ein Kraftfahrzeug
CN106284150B (zh) * 2015-05-11 2018-02-23 南京德朔实业有限公司 电动工具
EP3019718B1 (fr) 2013-07-12 2020-08-19 Volvo Truck Corporation Système d'échangeur de chaleur pour un véhicule
JP6378509B2 (ja) * 2014-03-18 2018-08-22 テラル株式会社 風力発電装置
US10174481B2 (en) * 2014-08-26 2019-01-08 Cnh Industrial America Llc Shroud wear ring for a work vehicle
JP6163518B2 (ja) * 2015-07-23 2017-07-12 本田技研工業株式会社 冷却装置
DE102015216335A1 (de) 2015-08-26 2017-03-02 Mahle International Gmbh Lüfter für eine Kühleranordnung
USD805107S1 (en) 2016-12-02 2017-12-12 U.S. Farathane Corporation Engine fan shroud
US10563751B2 (en) 2017-04-19 2020-02-18 Excel Industries, Inc. Cooling apparatus for continuously variable transmissions
EP3830424B1 (fr) 2018-08-02 2024-09-11 Horton, Inc. Ventilateur de refroidissement de véhicule à faible plénitude
CN109282394A (zh) * 2018-11-20 2019-01-29 珠海格力电器股份有限公司 出风口导流结构和净化器
DE102019202116A1 (de) * 2019-02-18 2020-08-20 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Kühlerlüfter eines Kraftfahrzeugs
CN110043354A (zh) * 2019-05-17 2019-07-23 苏州睿昕汽车配件有限公司 一种由风扇与导流结构组成的导流冷却系统
EP4015792A1 (fr) * 2020-12-17 2022-06-22 Volvo Truck Corporation Appareil et procédé de refroidissement des composants d'un véhicule électrique lourd
CN115405538A (zh) * 2021-05-28 2022-11-29 冷王公司 高效轴流式风扇

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DE833162C (de) * 1949-12-16 1952-03-03 Wilhelm Pfeiffer Kuehlergeblaese fuer Kraftfahrzeuge mit wassergekuehltem Motor
DE4137703C1 (fr) * 1991-11-15 1992-12-10 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
JPH07217434A (ja) * 1994-02-02 1995-08-15 Toyo Radiator Co Ltd 熱交換器用ファンシュラウドおよび熱交換器
EP1544472A2 (fr) * 2003-12-18 2005-06-22 Ruck Ventilatoren GmbH Ventilateur-canal

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Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
DE833162C (de) * 1949-12-16 1952-03-03 Wilhelm Pfeiffer Kuehlergeblaese fuer Kraftfahrzeuge mit wassergekuehltem Motor
DE4137703C1 (fr) * 1991-11-15 1992-12-10 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
JPH07217434A (ja) * 1994-02-02 1995-08-15 Toyo Radiator Co Ltd 熱交換器用ファンシュラウドおよび熱交換器
EP1544472A2 (fr) * 2003-12-18 2005-06-22 Ruck Ventilatoren GmbH Ventilateur-canal

Also Published As

Publication number Publication date
US20100247351A1 (en) 2010-09-30
US8459967B2 (en) 2013-06-11
DE102009015104A1 (de) 2010-10-14
EP2236837A3 (fr) 2014-10-01
EP2236837B1 (fr) 2017-09-20

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