EP1890018A1 - Dispositif de refroidissement pour un véhicule automobile - Google Patents

Dispositif de refroidissement pour un véhicule automobile Download PDF

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Publication number
EP1890018A1
EP1890018A1 EP07013565A EP07013565A EP1890018A1 EP 1890018 A1 EP1890018 A1 EP 1890018A1 EP 07013565 A EP07013565 A EP 07013565A EP 07013565 A EP07013565 A EP 07013565A EP 1890018 A1 EP1890018 A1 EP 1890018A1
Authority
EP
European Patent Office
Prior art keywords
cooling device
flow
axial fan
zargenring
fan
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Withdrawn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
EP07013565A
Other languages
German (de)
English (en)
Inventor
Uwe Blass
Ulrich Vollert
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 EP1890018A1 publication Critical patent/EP1890018A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06—Guiding or ducting air to, or from, ducted 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
    • F04D29/40—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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0094—Radiators for recooling the engine coolant

Definitions

  • the invention relates to a cooling device for a motor vehicle according to the preamble of claim 1.
  • the applicant has been known a cooling device for motor vehicles with an axial fan, which is fixed to the engine and driven by the internal combustion engine of the motor vehicle.
  • the axial fan sucks air through a coolant radiator, on the back of which a radiator frame for channeling the air flow is attached.
  • the axial fan has an axial blading with an outer guide ring (shell), which protrudes counter to the flow direction over the blade leading edges and protrudes into a motor-fixed inlet nozzle.
  • the guide ring is radially expanded in its downstream region and may additionally also have a diffuser part. Due to a strong throttling, the axial fan has a semi-axial flow, which is supported or reinforced by the extended area of the guide ring and the diffuser part. Due to the motomahen installation of the axial fan, it may come in the known arrangement for recirculation of the exiting fan flow, ie to a Wiederansaugung by the radiator, whereby the cooling performance is impaired.
  • the Zargenring expanded radially outward to a funnel-shaped flow guide.
  • the flow exiting the fan a semi-axial or semi-radial flow (axial and radial component flow) is directed outwardly through the flow directing device, i. H. further deflected in the radial direction.
  • the radial extension of the flow-guiding device is characterized by an opening angle which is at least 55 degrees, preferably 60 degrees and more with respect to the axial direction.
  • the radial expansion can take place in one stage through a conical surface with an opening angle or in at least two stages by at least two adjoining conical surfaces with increasing opening angles or trumpet- or bell-shaped.
  • a relatively strong expansion takes place, which further amplifies the existing already in the fan semi-radial flow in the radial direction. It is thus achieved on relatively short axial space a relatively strong deflection.
  • the opening angle ⁇ can also be made variable over the circumference, if the outflow conditions behind the fan, z. B. are different due to arranged on the engine ancillaries.
  • the flow guide is characterized by a maximum outer diameter at the downstream end which is at least 1.1 times, preferably 1.15 times the fan diameter.
  • a maximum deflection of the outflow can be achieved in the space available in the vehicle.
  • the fan blades may either circulate within the cylindrical portion of the bezel ring or may have a downstream blade protrusion extending into the enlarged portion of the flow directing device.
  • a known inlet nozzle is provided on the Zargenring, which cooperates with a fixed to the blade tips guide ring or jacket.
  • an annular gap and consequently a gap flow with 180-degree deflection is generated.
  • the gap flow in the annular gap is directed against the main axial flow in the fan and sucks in air from the outflow area. It is also advantageous that a higher delay in the discharge area is achieved by the suction due to the gap flow (effect of the boundary layer suction).
  • the semi-axial outflow and the radial deflection of the outflow to the outside can be supported by a radially expanding jacket of the fan, d. H. a mantle widening like a diffuser. The tendency to detach the flow is thus reduced.
  • the Zargenring is arranged fixed to the engine, d. H. attached to the block of the internal combustion engine. This results in relative movements between the frame and the radiator or between Zargenring and frame.
  • the relative movements are advantageously compensated by flexible or movable sealing means in the form of lips or bellows.
  • the axial fan is also arranged motor-fixed and is preferably driven by a liquid friction clutch by the internal combustion engine. This results in minimal gap between the frame ring and the fan blade tips or fan shroud.
  • Fig. 1 shows a cooling device 1 according to the invention for a motor vehicle, which has an engine block 2 to which an axial fan 3 is attached and stored.
  • the axial fan 3 has a fan hub 3a with an axial blading 3b and a rotation axis a.
  • the Lüftemabe 3a is attached to a fluid friction clutch, not shown, which is driven by a belt drive 4 (a direct drive via the crankshaft the internal combustion engine is also possible).
  • a coolant / air cooler 5 hereinafter referred to as radiator, arranged, which - which is not shown - relative to the body of the motor vehicle (eg., The longitudinal members) is supported.
  • the cooler 5 is traversed by air, represented by an arrow L. Downstream, the radiator 5 is followed by a frame 6, which is hood-like and the air flow exiting the radiator 5 the axial fan 3 supplies.
  • the latter is surrounded by a Zargenring 7, which is cylindrical on its inner side and to which in the downstream direction, a funnel-shaped expanding flow guide 8 connects.
  • the Zargenring 7 and the flow control device 8 are integrally formed in the illustrated embodiment.
  • an elastic lip 7a is arranged, which rests against the frame 6 and can slide on this.
  • the frame ring 7 is - which is not shown - attached to the engine block 2, while the frame 6 is attached via an elastic fastening element 6a on the radiator 5.
  • the fan 3 or its blading 3b has an outer diameter D L
  • the flow guide 8 has an outer diameter D A at its downstream end.
  • the two diameters D A , D L satisfy the following inequality: 1.1 ⁇ D A / D L ⁇ 1.4, in particular 1.15 ⁇ D A / D L.
  • the flow-guiding device 8 has a conical surface 8a which forms an angle ⁇ with the axial direction (rotation axis a), which characterizes the extent of the radial expansion of the flow-guiding device 8. This so-called opening angle ⁇ is greater than 55 degrees, preferably greater than 60 degrees.
  • the geometry of the flow guide 8 is determined.
  • the transition from the cylindrical region of the Zargenringes 7 to the conical region 8a is preferably rounded, ie formed aerodynamically.
  • the flow guide device 8, 8a has the effect that the air flow emerging from the fan 3b-represented by a dashed flow arrow P-is deflected outward in the radial direction.
  • Fig. 2 shows a cooling device 9, similar to the cooling device 1 Fig. 1, but with a modified or axially offset axial fan 10 with a hub 10a and 10b Axialbeschaufelung.
  • the blades 10b have in the flow direction of the air a blade supernatant ü with respect to the cylindrical part of the frame 7, ie the blades 10b extend with their supernatant ü in the radially enlarged conical portion 8a of the Strömungsleit Anlagen 8.
  • a dashed flow arrow S is the course of shown half-axial flow over the blades 10b and the outflow into the region of the flow guide 8.
  • This variant with blade overhang ü supports a low-loss outflow with subsequent radial deflection and stabilizes the flow.
  • Fig. 3 shows a further embodiment of the invention, a cooling device 11, in which a frame 12, a Zargenring 13 and a flow guide 14 are integrally formed as a plastic injection molded part.
  • an inlet nozzle 15 is injection molded in the inlet region of the frame ring 13, as described in a similar form in the aforementioned prior art.
  • the axial fan 16 is designed as a so-called shell fan, ie, on the circumference of the blades 16b, a jacket or guide ring 17 is arranged and connected to the blade tips.
  • the guide ring 17 on an input-side projection on which projects into the inlet nozzle 15. As a result, a 180-degree deflection is achieved.
  • the guide ring 17 has a downstream part 17 b, which is flared and forms a transition to the adjoining flow guide 14. Between the guide ring 17 and Zargenring 13 thus an annular gap 18 is formed, which forms a gap flow against the main flow in the fan.
  • the inlet nozzle 15 in conjunction with the guide ring 17 the flow conditions are improved in the blade tip area, reduces the noise level and reduces a leakage flow.
  • results from the extraction of the gap flow in the downstream region of the fan a stronger Delays the main flow and a better concern of the flow at the flow guide 14.
  • the gap flow thus has the known effect of a boundary layer suction. Otherwise, the cooling device 11 corresponds to the cooling device 1 according to FIG. 1.
  • the frame 12, Zargenring 13, flow guide 14 and inlet nozzle 15 existing plastic injection molded part is connected via struts, not shown, with the engine block 2. Between guide ring 17 and Zargenring 13 thus occur virtually no relative movements, so that a minimum annular gap 18 can be realized. In contrast, an elastic or movable attachment of the frame 12 relative to the radiator 5 is required, which is preferably carried out by an elastic fastening member 12 a.
  • FIG. 4 shows, as a further exemplary embodiment of the invention, a cooling device 20 with an internal combustion engine 21, which has a number of ancillary units 22 in the front area, for example a coolant pump and a generator, which are connected to one another via a belt drive.
  • the front side of the internal combustion engine 21 is formed by the arrangement of the ancillary units 22 is relatively rugged and irregular.
  • a driver's cab 23 is arranged, which closes the engine compartment upwards.
  • an axial fan 3 and a cooler 5 or a cooling module formed from a plurality of heat exchangers are arranged.
  • a frame 24 is arranged with a Zargenring 25, in which the axial fan 3 rotates.
  • a flow guide 26 which has a seen over the circumference of the Zargenringes 25, different opening angle ⁇ :
  • two different opening angles are exemplified, an upper opening angle ⁇ 1 of about 90 ° and a lower opening angle ⁇ 2 of about 55 °.
  • the flow guide 26 is thus to the different outflow conditions behind the axial fan 3, caused by the arrangement of the ancillary units 22 adapted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP07013565A 2006-08-10 2007-07-11 Dispositif de refroidissement pour un véhicule automobile Withdrawn EP1890018A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006037641.2A DE102006037641B4 (de) 2006-08-10 2006-08-10 Kühlvorrichtung eingerichtet für ein Kraftfahrzeug mit einem Kühlmittelkühler und einem Axiallüfter

Publications (1)

Publication Number Publication Date
EP1890018A1 true EP1890018A1 (fr) 2008-02-20

Family

ID=38753224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07013565A Withdrawn EP1890018A1 (fr) 2006-08-10 2007-07-11 Dispositif de refroidissement pour un véhicule automobile

Country Status (3)

Country Link
US (1) US20080035316A1 (fr)
EP (1) EP1890018A1 (fr)
DE (1) DE102006037641B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011045542A1 (fr) * 2009-10-16 2011-04-21 Renault Sas Agencement d'un groupe moto ventilateur et d'un radiateur

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009012025A1 (de) 2009-03-10 2010-09-16 Behr Gmbh & Co. Kg Kühlvorrichtung für ein Kraftfahrzeug
DE102009015104A1 (de) * 2009-03-31 2010-10-14 Behr Gmbh & Co. Kg Axiallüfter, insbesondere für ein Kraftfahrzeug
JP2017226252A (ja) * 2016-06-20 2017-12-28 いすゞ自動車株式会社 車両の冷却装置
USD860427S1 (en) 2017-09-18 2019-09-17 Horton, Inc. Ring fan
JP7169219B2 (ja) * 2019-02-15 2022-11-10 株式会社ミツバ 送風装置
DE102019202116A1 (de) 2019-02-18 2020-08-20 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Kühlerlüfter eines Kraftfahrzeugs
DE102021118148A1 (de) 2021-07-14 2023-01-19 Ebm-Papst Mulfingen Gmbh & Co. Kg Kühlvorrichtung mit zwei stirnseitigen voneinander getrennt anströmbaren Teilflächen

Citations (7)

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Publication number Priority date Publication date Assignee Title
DE2518498A1 (de) * 1974-05-17 1975-11-27 Int Harvester Co Luftleitblech fuer ein kuehlgeblaese einer verbrennungskraftmaschine
DE3304297A1 (de) * 1982-03-15 1984-03-15 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Axialgeblaese, insbesondere fuer kuehler einer wassergekuehlten brennkraftmaschine
WO1989007717A1 (fr) * 1988-02-11 1989-08-24 Robert Bosch Gmbh Ventilateur axial
US5520513A (en) * 1990-03-07 1996-05-28 Nippondenso Co., Ltd. Fan apparatus
DE4222264C2 (de) * 1992-07-07 1997-08-21 Temic Auto Electr Motors Gmbh Kühlvorrichtung für ein Kraftfahrzeug
US20010004011A1 (en) * 1997-10-08 2001-06-21 Honda Giken Kogyo Kabushiki Kaisha Cooling device for radiator of motorcycle
WO2005098213A1 (fr) * 2004-04-05 2005-10-20 Komatsu Ltd. Dispositif de refroidissement

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US3433403A (en) * 1966-12-16 1969-03-18 Lau Blower Co Fan inlet shroud
US3872916A (en) * 1973-04-05 1975-03-25 Int Harvester Co Fan shroud exit structure
US3937192A (en) * 1974-09-03 1976-02-10 General Motors Corporation Ejector fan shroud arrangement
US4061188A (en) * 1975-01-24 1977-12-06 International Harvester Company Fan shroud structure
DE2722089C2 (de) * 1977-05-16 1986-07-24 Steyr-Daimler-Puch Ag, Wien Gekapselte, wassergekühlte Brennkraftmaschine
AT379435B (de) * 1980-08-05 1986-01-10 List Hans Axialluefter
IT8353039V0 (it) * 1982-03-15 1983-03-10 Sueddeutsche Kuehler Behr Ventilatore assiale particolarmente per radiatori di raffreddamento di motori termici raffreddati ad acqua
DE8614073U1 (de) * 1986-05-24 1988-04-07 Daimler-Benz Ag Kühleinrichtung an einer Brennkraftmaschine
US5423660A (en) * 1993-06-17 1995-06-13 Airflow Research And Manufacturing Corporation Fan inlet with curved lip and cylindrical member forming labyrinth seal
DE4431839A1 (de) * 1994-09-07 1996-03-14 Behr Gmbh & Co Lüfter für eine Kühlanlage eines Kraftfahrzeugs
DE19713712C1 (de) * 1997-04-03 1998-04-16 Laengerer & Reich Gmbh & Co Radialventilator, insbesonders als Lüfter für die Kühlanlage eines Kraftfahrzeuges
JP4339655B2 (ja) * 2003-09-10 2009-10-07 カルソニックカンセイ株式会社 熱交換器ユニットにおける冷却ファン装置の取付構造

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2518498A1 (de) * 1974-05-17 1975-11-27 Int Harvester Co Luftleitblech fuer ein kuehlgeblaese einer verbrennungskraftmaschine
DE3304297A1 (de) * 1982-03-15 1984-03-15 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Axialgeblaese, insbesondere fuer kuehler einer wassergekuehlten brennkraftmaschine
WO1989007717A1 (fr) * 1988-02-11 1989-08-24 Robert Bosch Gmbh Ventilateur axial
US5520513A (en) * 1990-03-07 1996-05-28 Nippondenso Co., Ltd. Fan apparatus
DE4222264C2 (de) * 1992-07-07 1997-08-21 Temic Auto Electr Motors Gmbh Kühlvorrichtung für ein Kraftfahrzeug
US20010004011A1 (en) * 1997-10-08 2001-06-21 Honda Giken Kogyo Kabushiki Kaisha Cooling device for radiator of motorcycle
WO2005098213A1 (fr) * 2004-04-05 2005-10-20 Komatsu Ltd. Dispositif de refroidissement
GB2427899A (en) * 2004-04-05 2007-01-10 Komatsu Mfg Co Ltd Cooling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011045542A1 (fr) * 2009-10-16 2011-04-21 Renault Sas Agencement d'un groupe moto ventilateur et d'un radiateur
FR2951410A1 (fr) * 2009-10-16 2011-04-22 Renault Sa Agencement d'un groupe moto ventilateur et d'un radiateur

Also Published As

Publication number Publication date
DE102006037641B4 (de) 2019-04-04
US20080035316A1 (en) 2008-02-14
DE102006037641A1 (de) 2008-02-14

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