EP1929137A1 - Cooling arrangement of a vehicle - Google Patents

Cooling arrangement of a vehicle

Info

Publication number
EP1929137A1
EP1929137A1 EP06793245A EP06793245A EP1929137A1 EP 1929137 A1 EP1929137 A1 EP 1929137A1 EP 06793245 A EP06793245 A EP 06793245A EP 06793245 A EP06793245 A EP 06793245A EP 1929137 A1 EP1929137 A1 EP 1929137A1
Authority
EP
European Patent Office
Prior art keywords
cooling arrangement
fan
air
heat exchangers
vehicle
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
EP06793245A
Other languages
German (de)
French (fr)
Other versions
EP1929137B1 (en
Inventor
Mattias Lang
Nicolai Tarasinski
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.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Priority to PL06793245T priority Critical patent/PL1929137T3/en
Publication of EP1929137A1 publication Critical patent/EP1929137A1/en
Application granted granted Critical
Publication of EP1929137B1 publication Critical patent/EP1929137B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/18—Arrangements or mounting of 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
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
    • F01P2003/182—Arrangements or mounting of liquid-to-air heat-exchangers with multiple 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
    • F01P2005/025—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers using two or more air pumps
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio

Definitions

  • the invention relates to a Kan angelhlan angel a movable in a direction of travel vehicle comprising at least two heat exchangers and an operating air through the heat exchanger sucking and the air at an angle to the suction ejecting fan.
  • No. 6,216,778 B describes an off-highway vehicle cooling system comprising a heat exchanger for a coolant of the engine or hydraulic oil and a blower which applies an air flow to the heat exchanger.
  • the blower is a radial fan, which sucks in air through the arranged at the rear of the vehicle transversely to the direction of heat exchanger and expels the heated air upwards.
  • a disadvantage is to be considered that the space available for the heat exchanger surface is limited. The especially applies to vehicles in which the heat exchangers are arranged within a cuboid hood area, as in agricultural tractors. Although it would be possible to increase the cooling capacity, make the heat exchanger in the air flow direction thicker, but this would require a higher flow resistance and a disproportionate in proportion to the increase in cooling capacity fan performance.
  • the problem underlying the invention is seen to improve a cooling arrangement of a vehicle with a heat exchanger to the effect that in a compact arrangement, a sufficient cooling performance is achieved.
  • the cooling arrangement according to the invention comprises at least two heat exchangers and a fan which, during operation, sucks air through the heat exchangers and ejects them again at an angle to the suction direction. It is proposed to arrange the air flowed through surfaces of the heat exchanger at least approximately in the direction of travel and in particular vertically and to attach the fan sandwiched between the heat exchangers. The air is thus sucked in opposite directions transverse to the direction of travel, flows through the heat exchanger, and is finally ejected by the fan in a direction opposite to the suction direction at an angle of preferably 90 ° deflected direction.
  • a double-flow radial fan can be used, the air from both sides sucked axially and releases it in the radial direction again.
  • find two einflutige with the backs side by side arranged radial fan use, suck in each case the air from one side axially and deliver it in the radial direction again.
  • the fan may contrary to its direction of rotation curved blades or as a so-called drum rotor in the direction of rotation curved blades.
  • the drive of the fan can be done by an internal combustion engine ago by a mechanical drive train.
  • the fan is driven hydraulically or electrically, which offers the advantage of a variable, adapted to the respective cooling power requirement speed.
  • the speed can be controlled (adjusted or regulated) by a suitable control, which is supplied information about the temperatures of the coolant in the heat exchanger and the temperature of the ambient air, that the lowest possible (energy-saving) speed is used, but the cooling power requirement becomes.
  • two back-to-back, single-flow centrifugal blowers are used, they have jointly or preferably separately adjustable rotational speeds, so that the two heat exchangers, which can supply different units with coolant, can be driven at the respectively suitable speed.
  • the fan is surrounded by a guide which includes an outlet for the air located at the top of the fan. Because of your lower density increases the heated air in the heat exchangers up, which supports the conveying effect and avoids unwanted recirculation.
  • FIG. 1 is a perspective view of a cooling arrangement according to the invention with the purpose of better recognizability removed guide
  • Fig. 2 is a view of the cooling arrangement of Figure 1 with attached guide.
  • FIG. 1 shows the front area of a vehicle 10 in the form of an agricultural tractor, which comprises a rectangular hood area 12 which is enclosed by struts (not shown) which serve to support a hood 34 (see FIG. At the rear of the hood area 12 there is an internal combustion engine 16. Connected to the frame (not shown) of the vehicle 10 is a holder 18 which carries a cooling arrangement 20 according to the invention.
  • the cooling arrangement 20 comprises a first heat exchanger 22 designed as a conventional cross-flow heat exchanger, a second heat exchanger 24 designed as a crossflow heat exchanger known per se and a blower 26.
  • the first heat exchanger 22 is located on the right side of the hood area 12 in the direction of travel and has an air flow through it Surface 28, which extends vertically and in the direction of travel 30 of the vehicle 10.
  • the second heat exchanger 24 is located on the left in the direction of travel of the hood portion 12 and has an air-flow surface 28 which extends vertically and in the direction 30 of the vehicle 10.
  • the blower 26 which is a double-flow radial blast with trailing curved blades 32 and horizontally and transversely to the direction of travel 30 extending axis of rotation.
  • FIG. 2 in which the front portion of the vehicle 10 with hood 34 is shown.
  • the blower 26 is now provided with an associated guide 36 which radially encloses it and exposes only an outlet 38 at the top of the blower 26, which is aligned with an opening 40 in the hood 34.
  • the hood 34 further includes side openings 42 aligned with the surfaces 28 of the heat exchangers 22,24. Sieves or grids may be located in openings 42 to prevent ingress of at least larger foreign bodies.
  • the blower 26 is rotated about its axis by an associated drive (electrically or hydraulically or mechanically from the engine 16). It sucks due to its rotation with its trailing curved blades 32 from its two sides relatively clean air currents, which are oriented axially to the direction of rotation of the blower 26 and therefore horizontally and transversely to the direction of travel 30 respectively through the openings 42 and through the surfaces 28 of the heat exchanger 22, 24 and flow through the latter to the blower 26.
  • the blower 26 returns the sucked air in the radial direction again.
  • the baffle 36 causes the sucked, heated air to be expelled only through the outlet 38 and the opening 40 at the top of the blower 26 upwards.
  • the heat exchangers 22, 24 can be traversed by any, in particular by means of associated pumps, compressors or turbines required coolant of the vehicle, z. B. coolant water of the engine, oil of the engine or a transmission, hydraulic oil, charge air of a turbocharger (intercooler), cooling liquid of an electric motor and / or refrigerant of a condenser of an air conditioner.
  • each of the heat exchangers 22, 24 flows through a coolant, which is associated with a cooling circuit of another unit of the vehicle 10, in particular one of the aforementioned cooling circuits.
  • the heat exchangers 22, 24 may also be composed of separate heat exchangers arranged one behind the other in the direction of travel 30 and / or vertically one above the other and / or transversely to the direction of travel, which heat exchangers are assigned to different cooling circuits.

Landscapes

  • 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)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a cooling arrangement (20) of a vehicle (10) which is moveable in a direction of travel (30), which cooling arrangement (20) comprises two heat exchangers (22, 24) and a fan (26) which, during operation, sucks air through the heat exchangers (22, 24) and discharges the air at an angle with respect to the suction direction. It is proposed according to the invention that those surfaces (28) of the heat exchangers (22, 24) which are traversed by air extend at least approximately in the direction of travel (30), and that the fan (26) is arranged between the heat exchangers (22, 24).

Description

Kuhlanordnung eines Fahrzeugs Cooling arrangement of a vehicle
Beschreibungdescription
Die Erfindung betrifft eine Kϋhlanordnung eines in einer Fahrtrichtung bewegbaren Fahrzeugs, die mindestens zwei Wärmetauscher und ein im Betrieb Luft durch die Wärmetauscher saugendes und die Luft unter einem Winkel zur Ansaugrichtung ausstoßendes Gebläse umfasst.The invention relates to a Kanordnunghlanordnung a movable in a direction of travel vehicle comprising at least two heat exchangers and an operating air through the heat exchanger sucking and the air at an angle to the suction ejecting fan.
Stand der TechnikState of the art
In der US 6 216 778 B wird ein Kühlsystem für ein geländegängiges Fahrzeug beschrieben, das einen Wärmetauscher für ein Kuhlmittel des Motors oder Hydraulikόl und ein Gebläse umfasst, das den Wärmetauscher mit einem Luftstrom beaufschlagt. Das Geblase ist ein Radialgebläse, das Luft durch den an der Ruckseite des Fahrzeugs quer zur Fahrtrichtung angeordneten Wärmetauscher ansaugt und die erwärmte Luft nach oben ausstoßt.No. 6,216,778 B describes an off-highway vehicle cooling system comprising a heat exchanger for a coolant of the engine or hydraulic oil and a blower which applies an air flow to the heat exchanger. The blower is a radial fan, which sucks in air through the arranged at the rear of the vehicle transversely to the direction of heat exchanger and expels the heated air upwards.
Ein ähnliches Kühlsystem wird in der US 5 709 175 A vorgestellt, bei dem das Radialgebläse die Luft aus dem Motorraum durch den jedoch an der Frontseite des Fahrzeugs quer zur Fahrtrichtung angeordneten Wärmetauscher ansaugt und nach oben ausstößt. Gemäß der US 5 495 909 A ist der Wärmetauscher ebenfalls an der Frontseite des Fahrzeugs quer zur Fahrtrichtung angeordnet und das Radialgeblase stoßt die durch den Wärmetauscher angesaugte Luft zur Seite des Fahrzeugs hinaus.A similar cooling system is presented in US Pat. No. 5,709,175 A, in which the radial fan draws in the air from the engine compartment through the heat exchanger arranged transversely to the direction of travel at the front of the vehicle and ejects it upwards. According to US Pat. No. 5,495,909, the heat exchanger is also arranged on the front side of the vehicle transversely to the direction of travel, and the radial blower pushes the air sucked in through the heat exchanger to the side of the vehicle.
Im Stand der Technik ist es demnach bekannt, den Wärmetauscher an der Vorder- oder Ruckseite des Fahrzeugs anzuordnen und seine Luft durchströmte Oberflächen vertikal und quer zur Vorwarts- richtung des Fahrzeugs anzuordnen. Die mittels des Geblases durch den Wärmetauscher hindurch angesaugte Luft wird bei Verwendung eines Radialgebläses dann durch das Gebläse um 90° umgelenkt und zur Seite oder nach oben ausgestoßen.In the prior art, it is therefore known to arrange the heat exchanger at the front or rear side of the vehicle and to arrange its air flow-through surfaces vertically and transversely to the forward direction of the vehicle. The sucked by the blower through the heat exchanger through air is then deflected by using the fan by 90 ° and ejected to the side or up using a radial fan.
Als nachteilig ist dabei anzusehen, dass die für den Wärmetauscher zur Verfügung stehende Fläche begrenzt ist. Das gilt insbesondere für Fahrzeuge, bei denen die Wärmetauscher innerhalb eines quaderförmigen Haubenbereichs angeordnet sind, wie bei landwirtschaftlichen Traktoren. Es wäre zur Vergrößerung der Kühlleistung zwar möglich, den Wärmetauscher in der Luftflussrichtung dicker zu gestalten, was aber einen höheren Strömungswiderstand und eine im Verhältnis zur Erhöhung der Kühlleistung überproportionale Gebläseleistung bedingen würde.A disadvantage is to be considered that the space available for the heat exchanger surface is limited. The especially applies to vehicles in which the heat exchangers are arranged within a cuboid hood area, as in agricultural tractors. Although it would be possible to increase the cooling capacity, make the heat exchanger in the air flow direction thicker, but this would require a higher flow resistance and a disproportionate in proportion to the increase in cooling capacity fan performance.
Aufgabe der ErfindungObject of the invention
Das der Erfindung zu Grunde liegende Problem wird darin gesehen, eine Kühlanordnung eines Fahrzeugs mit einem Wärmetauscher dahingehend zu verbessern, dass bei einer kompakten Anordnung eine hinreichende Kühlleistung erzielt wird.The problem underlying the invention is seen to improve a cooling arrangement of a vehicle with a heat exchanger to the effect that in a compact arrangement, a sufficient cooling performance is achieved.
Dieses Problem wird erfindungsgemäß durch die Lehre des Patentanspruchs 1 gelöst, wobei in den weiteren Patentansprüchen Merkmale aufgeführt sind, die die Lösung in vorteilhafter Weise weiterentwickeln .This problem is inventively solved by the teaching of claim 1, wherein in the other claims features are listed, which further develop the solution in an advantageous manner.
Die erfindungsgemäße Kühlanordnung umfasst mindestens zwei Wärmetauscher und ein Gebläse, das im Betrieb Luft durch die Wärmetauscher saugt und in einem Winkel zur Ansaugrichtung wieder ausstößt. Es wird vorgeschlagen, die Luft durchströmten Oberflächen der Wärmetauscher zumindest näherungsweise in Fahrtrichtung und insbesondere vertikal anzuordnen und das Gebläse sandwichartig zwischen den Wärmetauschern anzubringen. Die Luft wird demnach in entgegen gesetzten Richtungen quer zur Fahrtrichtung angesaugt, durchströmt die Wärmetauscher, und wird schließlich durch das Gebläse in einer gegenüber der Ansaugrichtung unter einem Winkel von vorzugsweise 90° umgelenkten Richtung ausgestoßen.The cooling arrangement according to the invention comprises at least two heat exchangers and a fan which, during operation, sucks air through the heat exchangers and ejects them again at an angle to the suction direction. It is proposed to arrange the air flowed through surfaces of the heat exchanger at least approximately in the direction of travel and in particular vertically and to attach the fan sandwiched between the heat exchangers. The air is thus sucked in opposite directions transverse to the direction of travel, flows through the heat exchanger, and is finally ejected by the fan in a direction opposite to the suction direction at an angle of preferably 90 ° deflected direction.
Auf diese Weise wird ein kompakter Aufbau der Kühleinrichtung erreicht, der sich insbesondere zur Anbringung unterhalb eines quaderförmigen Haubenbereichs eines landwirtschaftlichen Traktors oder einer Baumaschine eignet, da sich die Hauptabmessungen der Wärmetauscher in der Fahrtrichtung erstrecken. Bei gegebener Höhe und Breite des zur Verfügung stehenden Raums kann die Oberfläche der Wärmetauscher vergrößert werden, was in einer verminderten Antriebsleistung des Gebläses resultiert, die wiederum eine Verminderung des Gebläsegeräuschs mit sich bringt.In this way, a compact design of the cooling device is achieved, which is particularly suitable for attachment below a cuboid hood region of an agricultural tractor or a construction machine, since the Main dimensions of the heat exchanger in the direction of travel extend. Given the height and width of the available space, the surface area of the heat exchangers can be increased, which results in a reduced drive power of the fan, which in turn brings about a reduction of the fan noise.
Als Gebläse kann ein doppelflutiges Radialgebläse Verwendung finden, das Luft von beiden Seiten axial ansaugt und in radialer Richtung wieder abgibt. Alternativ finden zwei einflutige, mit den Rückseiten nebeneinander angeordnete Radialgebläse Verwendung, die jeweils Luft von einer Seite axial ansaugen und in radialer Richtung wieder abgeben. Das Gebläse kann entgegen seiner Drehrichtung gekrümmte Schaufeln oder als so genannter Trommelläufer in Drehrichtung gekrümmte Schaufeln aufweisen.As a blower, a double-flow radial fan can be used, the air from both sides sucked axially and releases it in the radial direction again. Alternatively, find two einflutige, with the backs side by side arranged radial fan use, suck in each case the air from one side axially and deliver it in the radial direction again. The fan may contrary to its direction of rotation curved blades or as a so-called drum rotor in the direction of rotation curved blades.
Der Antrieb des Gebläses kann von einem Verbrennungsmotor her durch einen mechanischen Antriebsstrang erfolgen. Bei einer anderen Ausführungsform wird das Gebläse hydraulisch oder elektrisch angetrieben, was den Vorteil einer veränderbaren, dem jeweiligen Kühlleistungsbedarf angepassten Drehzahl bietet. Die Drehzahl kann durch eine geeignete Steuerung, der eine Information über die Temperaturen des Kühlmittels im Wärmetauscher und die Temperatur der Umgebungsluft zugeführt wird, derart kontrolliert (eingestellt oder geregelt) werden, dass eine möglichst geringe (energiesparende) Drehzahl verwendet wird, aber dem Kühlleistungsbedarf gerecht wird. Werden zwei Rücken an Rücken angeordnete, einflutige Radialgebläse verwendet, weisen sie gemeinsam oder vorzugsweise getrennt voneinander einstellbare Drehzahlen auf, so dass die beiden Wärmetauscher, die unterschiedliche Aggregate mit Kühlmittel versorgen können, mit der jeweils geeigneten Drehzahl angetrieben werden können.The drive of the fan can be done by an internal combustion engine ago by a mechanical drive train. In another embodiment, the fan is driven hydraulically or electrically, which offers the advantage of a variable, adapted to the respective cooling power requirement speed. The speed can be controlled (adjusted or regulated) by a suitable control, which is supplied information about the temperatures of the coolant in the heat exchanger and the temperature of the ambient air, that the lowest possible (energy-saving) speed is used, but the cooling power requirement becomes. If two back-to-back, single-flow centrifugal blowers are used, they have jointly or preferably separately adjustable rotational speeds, so that the two heat exchangers, which can supply different units with coolant, can be driven at the respectively suitable speed.
In einer bevorzugten Ausführungsform ist das Gebläse von einer Leiteinrichtung umgeben, die einen an der Oberseite des Gebläses angeordneten Auslass für die Luft umfasst. Aufgrund ihrer geringeren Dichte steigt die in den Wärmetauschern erwärmte Luft nach oben, was die Förderwirkung unterstützt und eine unerwünschte Rezirkulation vermeidet.In a preferred embodiment, the fan is surrounded by a guide which includes an outlet for the air located at the top of the fan. Because of your lower density increases the heated air in the heat exchangers up, which supports the conveying effect and avoids unwanted recirculation.
Ausführungsbeispielembodiment
In den Zeichnungen ist ein nachfolgend näher beschriebenes Ausführungsbeispiel der Erfindung dargestellt. Es zeigt:In the drawings, an embodiment of the invention described in more detail below is shown. It shows:
Fig. 1 eine perspektivische Ansicht einer erfindungsgemäßen Kühlanordnung mit zwecks besserer Erkennbarkeit abgenommener Leiteinrichtung,1 is a perspective view of a cooling arrangement according to the invention with the purpose of better recognizability removed guide,
Fig. 2 eine Ansicht der Kühlanordnung aus Figur 1 mit angebrachter Leiteinrichtung.Fig. 2 is a view of the cooling arrangement of Figure 1 with attached guide.
Die Figur 1 zeigt den vorderen Bereich eines Fahrzeugs 10 in Form eines landwirtschaftlichen Traktors, der einen quaderförmigen Haubenbereich 12 umfasst, welcher durch (nicht gezeigte) Streben umschlossen wird, die zur Abstützung einer Haube 34 (s. Figur 2) dienen. Rückwärtig des Haubenbereichs 12 befindet sich ein Verbrennungsmotor 16. Mit dem Rahmen (nicht dargestellt) des Fahrzeugs 10 ist eine Halterung 18 verbunden, die eine erfindungsgemäße Kühlanordnung 20 trägt.1 shows the front area of a vehicle 10 in the form of an agricultural tractor, which comprises a rectangular hood area 12 which is enclosed by struts (not shown) which serve to support a hood 34 (see FIG. At the rear of the hood area 12 there is an internal combustion engine 16. Connected to the frame (not shown) of the vehicle 10 is a holder 18 which carries a cooling arrangement 20 according to the invention.
Die Kühlanordnung 20 umfasst einen als an sich bekannter Kreuzstromwärmetauscher ausgeführten ersten Wärmetauscher 22, einen als an sich bekannter Kreuzstromwärmetauscher ausgeführten zweiten Wärmetauscher 24 und ein Gebläse 26. Der erste Wärmetauscher 22 befindet sich an der in Fahrtrichtung rechten Seite des Haubenbereichs 12 und weist eine Luft durchströmte Oberfläche 28 auf, die sich vertikal und in der Fahrtrichtung 30 des Fahrzeugs 10 erstreckt. Der zweite Wärmetauscher 24 befindet sich an der in Fahrtrichtung linken Seite des Haubenbereichs 12 und weist eine Luft durchströmte Oberfläche 28 auf, die sich vertikal und in der Fahrtrichtung 30 des Fahrzeugs 10 erstreckt. Zwischen den Wärmetauschern 22, 24 befindet sich das Geblase 26, das ein doppelflutiges Radialgeblase mit nachlaufend gekrümmten Schaufeln 32 und sich horizontal und quer zur Fahrtrichtung 30 erstreckender Drehachse ist.The cooling arrangement 20 comprises a first heat exchanger 22 designed as a conventional cross-flow heat exchanger, a second heat exchanger 24 designed as a crossflow heat exchanger known per se and a blower 26. The first heat exchanger 22 is located on the right side of the hood area 12 in the direction of travel and has an air flow through it Surface 28, which extends vertically and in the direction of travel 30 of the vehicle 10. The second heat exchanger 24 is located on the left in the direction of travel of the hood portion 12 and has an air-flow surface 28 which extends vertically and in the direction 30 of the vehicle 10. Between the heat exchangers 22, 24 is the blower 26, which is a double-flow radial blast with trailing curved blades 32 and horizontally and transversely to the direction of travel 30 extending axis of rotation.
Es wird nun Bezug auf die Figur 2 genommen, in der der vordere Bereich des Fahrzeugs 10 mit angebrachter Haube 34 dargestellt ist. Das Geblase 26 ist nunmehr mit einer zugehörigen Leiteinrichtung 36 versehen, die es radial umschließt und nur einen Auslass 38 an der Oberseite des Geblases 26 freilasst, der mit einer Öffnung 40 in der Haube 34 ausgerichtet ist. Die Haube 34 umfasst weiterhin seitliche Offnungen 42, die mit den Oberflachen 28 der Wärmetauscher 22, 24 ausgerichtet sind. In den Offnungen 42 können sich Siebe oder Gitter befinden, um das Eindringen zumindest größerer Fremdkörper zu vermeiden.Reference is now made to Figure 2, in which the front portion of the vehicle 10 with hood 34 is shown. The blower 26 is now provided with an associated guide 36 which radially encloses it and exposes only an outlet 38 at the top of the blower 26, which is aligned with an opening 40 in the hood 34. The hood 34 further includes side openings 42 aligned with the surfaces 28 of the heat exchangers 22,24. Sieves or grids may be located in openings 42 to prevent ingress of at least larger foreign bodies.
Die Funktionsweise der Kuhlanordnung 20 ist nach alledem folgendermaßen :The operation of the Kuhlanordnung 20 is after all of the following:
Das Geblase 26 wird durch einen zugeordneten Antrieb (elektrisch oder hydraulisch oder mechanisch vom Verbrennungsmotor 16 her) um seine Achse in Drehung versetzt. Es saugt aufgrund seiner Drehung mit seinen nachlaufend gekrümmten Schaufeln 32 von seinen beiden Seiten her relativ saubere Luftstrome an, die axial zur Drehrichtung des Geblases 26 orientiert sind und demnach horizontal und quer zur Fahrtrichtung 30 jeweils durch die Offnungen 42 und durch die Oberflachen 28 der Wärmetauscher 22, 24 und durch letztere hindurch zum Geblase 26 strömen. Das Geblase 26 gibt die angesaugte Luft in radialer Richtung wieder ab. Die Leiteinrichtung 36 bewirkt, dass die angesaugte, erwärmte Luft nur durch den Auslass 38 und die Öffnung 40 an der Oberseite des Geblases 26 nach oben ausgestoßen wird.The blower 26 is rotated about its axis by an associated drive (electrically or hydraulically or mechanically from the engine 16). It sucks due to its rotation with its trailing curved blades 32 from its two sides relatively clean air currents, which are oriented axially to the direction of rotation of the blower 26 and therefore horizontally and transversely to the direction of travel 30 respectively through the openings 42 and through the surfaces 28 of the heat exchanger 22, 24 and flow through the latter to the blower 26. The blower 26 returns the sucked air in the radial direction again. The baffle 36 causes the sucked, heated air to be expelled only through the outlet 38 and the opening 40 at the top of the blower 26 upwards.
Die Wärmetauscher 22, 24 können von beliebigen, insbesondere mittels zugeordneten Pumpen, Kompressoren oder Turbinen geforderten Kuhlmitteln des Fahrzeugs durchströmt werden, z. B. Kuhlwasser des Verbrennungsmotors, Ol des Verbrennungsmotors oder eines Getriebes, Hydrauliköl, Ladeluft eines Turboladers (Ladeluftkühler) , Kühlflüssigkeit eines Elektromotors und/oder Kältemittel eines Kondensors einer Klimaanlage. In einer bevorzugten Ausführungsform wird jeder der Wärmetauscher 22, 24 von einem Kühlmittel, das einem Kühlkreis eines anderen Aggregats des Fahrzeugs 10 zugeordnet ist, insbesondere einem der zuvor erwähnten Kühlkreise, durchströmt. Die Wärmetauscher 22, 24 können sich auch aus in Fahrtrichtung 30 hintereinander und/oder vertikal übereinander und/oder quer zur Fahrtrichtung hintereinander angeordneten, getrennten Wärmetauschern zusammensetzen, die unterschiedlichen Kühlkreisläufen zugeordnet sind. The heat exchangers 22, 24 can be traversed by any, in particular by means of associated pumps, compressors or turbines required coolant of the vehicle, z. B. coolant water of the engine, oil of the engine or a transmission, hydraulic oil, charge air of a turbocharger (intercooler), cooling liquid of an electric motor and / or refrigerant of a condenser of an air conditioner. In a preferred embodiment, each of the heat exchangers 22, 24 flows through a coolant, which is associated with a cooling circuit of another unit of the vehicle 10, in particular one of the aforementioned cooling circuits. The heat exchangers 22, 24 may also be composed of separate heat exchangers arranged one behind the other in the direction of travel 30 and / or vertically one above the other and / or transversely to the direction of travel, which heat exchangers are assigned to different cooling circuits.

Claims

Patentansprüche claims
1. Kühlanordnung (20) eines in einer Fahrtrichtung (30) bewegbaren Fahrzeugs (10) , die mindestens zwei WärmetauscherA cooling arrangement (20) of a vehicle (10) which can be moved in one direction of travel (30) and which has at least two heat exchangers
(22, 24) und ein im Betrieb Luft durch die Wärmetauscher (22, 24) saugendes und die Luft unter einem Winkel zur Ansaugrichtung ausstoßendes Gebläse (26) umfasst, dadurch gekennzeichnet, dass die Luft durchströmten Oberflächen (28) der Wärmetauscher (22, 24) sich zumindest näherungsweise in Fahrtrichtung (30) erstrecken und dass das Gebläse (26) zwischen den Wärmetauschern (22, 24) angeordnet ist.(22, 24) and an operating air through the heat exchanger (22, 24) sucking and the air at an angle to the suction expelled fan (26), characterized in that the air flow through surfaces (28) of the heat exchanger (22, 24) extend at least approximately in the direction of travel (30) and that the fan (26) between the heat exchangers (22, 24) is arranged.
2. Kühlanordnung (20) nach Anspruch 1, dadurch gekennzeichnet, dass die Luft durchströmten Oberflächen (28) der Wärmetauscher (22, 24) zumindest näherungsweise vertikal angeordnet sind.Second cooling arrangement (20) according to claim 1, characterized in that the air flow through surfaces (28) of the heat exchangers (22, 24) are arranged at least approximately vertically.
3. Kühlanordnung (20) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Gebläse (26) ein doppelflutiges Radialgebläse oder zwei Rücken an Rücken angeordnete, einflutige Radialgebläse umfasst.3. Cooling arrangement (20) according to claim 1 or 2, characterized in that the blower (26) comprises a double-flow radial fan or two back-to-back, single-flow radial fan.
4. Kühlanordnung (20) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Gebläse (26) entgegen oder in Drehrichtung gekrümmte Schaufeln (32) umfasst.4. Cooling arrangement (20) according to one of claims 1 to 3, characterized in that the fan (26) opposite or in the direction of rotation curved blades (32).
5. Kühlanordnung (20) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Gebläse (26) von einer Leiteinrichtung (36) umgeben ist, die einen an der Oberseite des Gebläses (26) angeordneten Auslass (38) umfasst, die vorzugsweise die warme Abluft nach oben leitet um Rezirkulation zu vermeiden.5. Cooling arrangement (20) according to one of claims 1 to 4, characterized in that the blower (26) by a guide (36) is surrounded, which comprises a at the top of the blower (26) arranged outlet (38) preferably the warm air is directed upwards to avoid recirculation.
6. Kühlanordnung (20) nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass das doppelflutige Radialgebläse eine einstellbare Drehzahl aufweist oder dass die zwei Rücken an Rücken angeordnete, einflutige Radialgebläse getrennt voneinander oder gemeinsam einstellbare Drehzahlen aufweisen .6. Cooling arrangement (20) according to one of claims 3 to 5, characterized in that the double-flow radial fan a having adjustable speed or that the two back-to-back, single-flow centrifugal blower have separately or jointly adjustable speeds.
7. Kühlanordnung (20) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die beiden Wärmetauscher (22, 24) in getrennten Kühlkreisläufen angeordnet sind, die unterschiedliche Aggregate mit Kühlmittel versorgen.7. Cooling arrangement (20) according to one of claims 1 to 6, characterized in that the two heat exchangers (22, 24) are arranged in separate cooling circuits, which supply different units with coolant.
8. Fahrzeug (10), insbesondere landwirtschaftlicher Traktor mit einer Kühlanordnung (20) nach einem der Ansprüche 1 bis 7.8. vehicle (10), in particular agricultural tractor with a cooling arrangement (20) according to one of claims 1 to 7.
9. Fahrzeug (10) nach Anspruch 8, dadurch gekennzeichnet, dass die Kühlanordnung (20) unterhalb eines etwa eines quaderförmigen Haubenbereichs (12) angeordnet ist. 9. Vehicle (10) according to claim 8, characterized in that the cooling arrangement (20) is arranged below an approximately a cuboid hood area (12).
EP06793245.9A 2005-09-21 2006-09-05 Cooling arrangement of a vehicle Active EP1929137B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06793245T PL1929137T3 (en) 2005-09-21 2006-09-05 Cooling arrangement of a vehicle

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DE102005045052A DE102005045052A1 (en) 2005-09-21 2005-09-21 Cooling arrangement of a vehicle
PCT/EP2006/066036 WO2007033903A1 (en) 2005-09-21 2006-09-05 Cooling arrangement of a vehicle

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US (1) US20110192578A1 (en)
EP (1) EP1929137B1 (en)
DE (1) DE102005045052A1 (en)
ES (1) ES2423894T3 (en)
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Also Published As

Publication number Publication date
PL1929137T3 (en) 2013-09-30
US20110192578A1 (en) 2011-08-11
WO2007033903A1 (en) 2007-03-29
ES2423894T3 (en) 2013-09-25
DE102005045052A1 (en) 2007-09-20
EP1929137B1 (en) 2013-05-01

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