EP1146210B1 - Box-shaped cooling system for a motor car - Google Patents

Box-shaped cooling system for a motor car Download PDF

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Publication number
EP1146210B1
EP1146210B1 EP01106769A EP01106769A EP1146210B1 EP 1146210 B1 EP1146210 B1 EP 1146210B1 EP 01106769 A EP01106769 A EP 01106769A EP 01106769 A EP01106769 A EP 01106769A EP 1146210 B1 EP1146210 B1 EP 1146210B1
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EP
European Patent Office
Prior art keywords
cooling
cooling system
box
network
compensation tank
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.)
Expired - Lifetime
Application number
EP01106769A
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German (de)
French (fr)
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EP1146210A2 (en
EP1146210A3 (en
Inventor
Werner Zobel
Michael Ehlers
Frank Vetter
Jörg Soldner
Roland STRÄHLE
Wolfgang Knecht
Mark G. Voss
Andreas Willmann
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Modine Manufacturing Co
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Modine Manufacturing Co
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    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0231—Header boxes having an expansion chamber
    • 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
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/029—Expansion reservoirs
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element

Definitions

  • the invention relates to a box-shaped cooling system for motor vehicles, consisting of box-shaped, from a cooling network with flat tubes and fins and collecting tanks havingdefactkeitskühlern, charge air coolers and possibly other coolers or heat exchangers, a rotating inside centrifugal fan and a front - and a rear wall and at least a surge tank.
  • Coolant radiators in the motor vehicle in order to operate effectively, require in their vicinity a space in which the cooling liquid can expand and degas.
  • a separate expansion tank or a separate from the header of the cooling liquid cooler space is used, which is in communication with the cooling circuit.
  • surge tanks usually have a filler neck to fill the cooling system and they also allow air pockets present in the cooling system to escape.
  • the expansion tank has been formed integrally with the jacket of the blower and serves as a support for a radiator.
  • this is not an indication of the way the arrangement of the expansion tank in the mentioned cooling systems.
  • the object of the invention is to provide for the said cooling system a surge tank, which fully complies with the requirements of the users both in terms of the total cost of the cooling system and in terms of its function.
  • the expansion tank is arranged so that its projection surface covers the surface of the cooling network of at least one cooler to a substantial extent and the expansion tank discharges the cooling air.
  • the surge tank is located above the upper horizontal intercooler and is arranged at an optimized distance from the same, wherein the bottom of the surge tank has the function of a baffle or the like.
  • An optimized distance is understood to be such a distance that effectively supports the direction of the cooling air emerging from the cooling network in a desired direction.
  • the expansion tank receives a cheap place at the highest point of the cooling system in order to fulfill its function of degassing of the cooling liquid can. Furthermore, the formation of the bottom of the surge tank as a baffle leads to the existing flow resistance remains within reasonable limits.
  • the expansion tank if it is provided at an optimized distance from the cooling network away, the performance of the radiator only insignificantly, at least only to a reasonable extent diminishes.
  • the cooling air drawn in by the radial fan through the opening in the front panel of the cooling system is deflected radially and forced through the cooling networks of the radiator.
  • the cooling air emerging from the cooling network also reaches the covered area of the cooling network, There to fulfill their cooling function and is directed around the expansion tank around.
  • the cooling effect can advantageously also be supported by air guide elements.
  • the surge tank may be arranged obliquely, so that its bottom surface forms an acute angle with the plane of the cooling network, whereby the expansion tank itself can act as an air guide.
  • the mentioned optimized distance from the cooling network is not constant in this embodiment, but increases according to the slope.
  • the distance on one side may also be 0, i. the expansion tank is supported on the said side directly on the cooling network or it touches the cooling network.
  • the bottom surface of the expansion tank can obtain a fluidically favorable shape, which eliminates the need for separate air guide elements.
  • the performance penalty can be compensated by the use of a centrifugal fan, which has the same power consumption significantly higher air flow rates than an axial fan.
  • the attachment of the expansion tank is preferably made directly on the cooling network.
  • holders are arranged between the flat tubes of the cooling network in corrugations free of corrugated ribs, which are metallically connected to the flat tubes and allow a sufficiently stable attachment and support.
  • the solution according to the invention is very low in terms of the total cost of the cooling system, compared with cooling systems that provide the surge tank on a collecting box, because standard headers can be used for the cooler of the cooling system.
  • the solution according to the invention can also be used very easily equalization tank different size without extensive changes to the other parts of the cooling system are required.
  • the box-shaped cooling system 1 consists of an in the picture above arranged intercooler 2, the collecting tanks 10; 11, a charge air inlet 21, a charge air outlet 22 and a cooling network 8, which has not been drawn.
  • the cooling network 8 is in principle identical to the cooling network 8 of the cooling liquid cooler 3, which is apparent from Fig. 1.
  • the cooling network 8 consists of flat tubes 7 and arranged between the flat tubes 7 corrugated fins 6. The ends of the flat tubes 7 are connected to opposite header boxes 10 and 11. The cooling liquid or the charge air to be cooled flows on the way from the collecting box 10 to the collecting box 11 through the flat tubes 7 and is cooled by means of cooling air flowing through the corrugated fins 6.
  • the cooling air is drawn by a centrifugal fan 14 through an opening 20 located in the front wall 16 with an inlet nozzle 15 ( Figure 3) and conveyed through the cooling nets 8 of all the radiators of the arrangement.
  • the cooling system 1 is closed at the rear by means of the rear wall 17.
  • the expansion tank 4 contains coolant and is fluidically in a manner not shown z. B. connected to the cooling liquid cooler 3 and is part of the circuit. It is located at the highest point of the cooling system 1, so that there can escape gas bubbles from the cooling liquid.
  • a filler neck 13 is arranged on the expansion tank 4.
  • the expansion tank 4 has a distance a from the cooling network 8 of the charge air cooler 2.
  • the expansion tank 4 covers the entire surface of the cooling network 8 in this embodiment.
  • the expansion tank 4 can be designed with the same capacity with less height, whereby the overall height of the cooling system 1 is reduced.
  • the bottom 5 of the surge tank 4 has in this embodiment, no constant distance a to the cooling network 8.
  • the distance a increases from the front to the back of the cooling system 1, whereby the bottom 5 assumes the function of a baffle and the majority of the outflowing cooling air (arrows in Fig. 1) either for further use or to the outside. Where the small distance a is present, it has been found to be advantageous to close this distance a with a cover plate 9 to selectively dissipate the cooling air.
  • Such an arrangement of the surge tank 4 affects the cooling performance only insignificantly and is an excellent compromise in terms of high cooling performance with a compact design of the entire cooling system and the requirement of the arrangement of the surge tank 4, as a prerequisite for a functioning cooling system of the motor vehicle.
  • the expansion tank 4 has been attached by means of holder 12 to the intercooler 2.
  • FIGs. 4 and 5 An advantageous attachment of the surge tank has been shown in Figs. 4 and 5.
  • the two figures show only the intercooler 2 or a part thereof and the expansion tank 4.
  • the attachment shown is mainly used when a surge tank 4 can be used, which covers a smaller part of the surface of the cooling network 8 than in FIG to 3 was shown.
  • 6 shows a cross section through the intercooler 2 in the region of the holder 12.
  • the intercooler 2 has two rows of tubes. The end of the holder 12 extends over both rows of tubes to provide sufficient durability.

Abstract

The cooling unit (1) has a cooling network (8) with flat pipes (7) and ribs (6), a refrigerant cooler (3) with collecting tanks (10,11), a charge cooler (2) and other coolers or heat exchangers. A radial ventilator rotates inside the cooling unit. The unit has front (16) and rear (17) walls and at least one compensation container (4) for refrigerant. The compensation container is arranged so that its projection faces covers at least part of the surface of the cooling network and conducts cooling air from the compensation container.

Description

Die Erfindung betrifft eine kastenförmige Kühlanlage für Kraftfahrzeuge, bestehend aus kastenförmig zusammengesetzten, aus einem Kühlnetz mit Flachrohren und Rippen sowie Sammelkästen aufweisenden Kühlflüssigkeitskühlern, Ladeluftkühlern und gegebenenfalls anderen Kühlern bzw. Wärmetauschern, einem im Inneren rotierenden Radialventilator sowie einer Front - und einer Rückwand und mit mindestens einem Ausgleichsbehälter.The invention relates to a box-shaped cooling system for motor vehicles, consisting of box-shaped, from a cooling network with flat tubes and fins and collecting tanks having Kühlflüssigkeitskühlern, charge air coolers and possibly other coolers or heat exchangers, a rotating inside centrifugal fan and a front - and a rear wall and at least a surge tank.

Kühlflüssigkeitskühler im Kraftfahrzeug erfordern, um effektiv wirksam zu sein, in ihrer Nähe einen Raum, in dem sich die Kühlflüssigkeit ausdehnen und entgasen kann. In der Regel wird dazu ein separater Ausgleichsbehälter oder auch ein vom Sammelkasten des Kühlflüssigkeitskühlers abgetrennter Raum verwendet, der mit dem Kühlkreislauf in Verbindung steht. Solche Ausgleichsbehälter haben in aller Regel einen Einfüllstutzen, um das Kühlsystem aufzufüllen und sie erlauben außerdem, daß im Kühlsystem vorhandene Lufteinschlüsse entweichen können.Coolant radiators in the motor vehicle, in order to operate effectively, require in their vicinity a space in which the cooling liquid can expand and degas. In general, a separate expansion tank or a separate from the header of the cooling liquid cooler space is used, which is in communication with the cooling circuit. Such surge tanks usually have a filler neck to fill the cooling system and they also allow air pockets present in the cooling system to escape.

Beispielsweise wurde in der ein Kühlsystem für Brennkraftmaschinen betreffenden DE 3912734 A1 der Ausgleichsbehälter einstückig mit dem Mantel des Gebläses ausgebildet und dient als Träger für einen Kühler. Dies ist jedoch kein Hinweis zur Art und Weise der Anordnung des Ausgleichsbehälters bei den angesprochenen Kühlanlagen.For example, in the DE 3912734 A1 relating to a cooling system for internal combustion engines, the expansion tank has been formed integrally with the jacket of the blower and serves as a support for a radiator. However, this is not an indication of the way the arrangement of the expansion tank in the mentioned cooling systems.

Bei kastenförmigen Kühlanlagen in Kraftfahrzeugen, die Kühlflüssigkeitskühler enthalten, ist unter den restriktiven Forderungen der Anwender solcher Kühlanlagen die Anordnung eines Ausgleichsbehälters und dessen Einbindung in das Kühlsystem mit Problemen behaftet.In box-shaped cooling systems in motor vehicles containing Kühlflüssigkeitkühler, under the restrictive demands of users of such cooling systems, the arrangement of a surge tank and its integration into the cooling system is fraught with problems.

Die Aufgabe der Erfindung besteht darin, für die genannte Kühlanlage einen Ausgleichsbehälter vorzusehen, der sowohl hinsichtlich der Gesamtkosten der Kühlanlage als auch hinsichtlich seiner Funktion den Forderungen der Anwender vollständig entspricht.The object of the invention is to provide for the said cooling system a surge tank, which fully complies with the requirements of the users both in terms of the total cost of the cooling system and in terms of its function.

Erfindungsgemäß ist vorgesehen, daß der Ausgleichsbehälter so angeordnet ist, daß seine Projektionsfläche die Fläche des Kühlnetzes mindestens eines Kühlers zu einem wesentlichen Teil abdeckt und der Ausgleichsbehälter die Kühlluft ableitet.According to the invention it is provided that the expansion tank is arranged so that its projection surface covers the surface of the cooling network of at least one cooler to a substantial extent and the expansion tank discharges the cooling air.

Vorzugsweise befindet sich der Ausgleichsbehälter oberhalb des oberen horizontal angeordneten Ladeluftkühlers und ist in einem optimierten Abstand von demselben angeordnet, wobei der Boden des Ausgleichsbehälters die Funktion eines Luftleitbleches oder dergleichen besitzt. Als optimierter Abstand wird ein solcher Abstand verstanden, der die Leitung der aus dem Kühlnetz austretenden Kühlluft wirksam in eine gewollte Richtung unterstützt.Preferably, the surge tank is located above the upper horizontal intercooler and is arranged at an optimized distance from the same, wherein the bottom of the surge tank has the function of a baffle or the like. An optimized distance is understood to be such a distance that effectively supports the direction of the cooling air emerging from the cooling network in a desired direction.

Vorzugsweise erhält der Ausgleichsbehälter einen günstigen Platz am höchsten Punkt der Kühlanlage, um seine Funktion der Entgasung der Kühlflüssigkeit erfüllen zu können. Ferner führt die Ausbildung des Bodens des Ausgleichsbehälters als Luftleitblech dazu, daß der vorhandene Strömungswiderstand in vertretbaren Grenzen bleibt.Preferably, the expansion tank receives a cheap place at the highest point of the cooling system in order to fulfill its function of degassing of the cooling liquid can. Furthermore, the formation of the bottom of the surge tank as a baffle leads to the existing flow resistance remains within reasonable limits.

Es hat sich überraschend erwiesen, daß der Ausgleichsbehälter, wenn er in einem optimierten Abstand vom Kühlnetz entfernt vorgesehen wird, die Leistung des Kühlers nur unwesentlich, jedenfalls nur in einem vertretbaren Umfang mindert. Die vom Radialventilator durch die Öffnung in der Frontplatte der Kühlanlage angesaugte Kühlluft wird radial umgelenkt und durch die Kühlnetze der Kühler gedrückt. Die aus dem Kühlnetz austretende Kühlluft erreicht auch den abgedeckten Bereich des Kühlnetzes, um dort ihre Kühlfunktion zu erfüllen und wird um den Ausgleichsbehälter herum gelenkt. Die Kühlwirkung kann vorteilhafter Weise zusätzlich durch Luftleitelemente unterstützt werden.It has surprisingly been found that the expansion tank, if it is provided at an optimized distance from the cooling network away, the performance of the radiator only insignificantly, at least only to a reasonable extent diminishes. The cooling air drawn in by the radial fan through the opening in the front panel of the cooling system is deflected radially and forced through the cooling networks of the radiator. The cooling air emerging from the cooling network also reaches the covered area of the cooling network, There to fulfill their cooling function and is directed around the expansion tank around. The cooling effect can advantageously also be supported by air guide elements.

In einem anderen Ausführungsbeispiel oder zusätzlich kann der Ausgleichsbehälter schräg angeordnet sein, so daß seine Bodenfläche mit der Ebene des Kühlnetzes einen spitzen Winkel bildet, wodurch der Ausgleichsbehälter selbst wie ein Luftleitelement wirken kann. Der erwähnte optimierte Abstand vom Kühlnetz ist bei diesem Ausführungsbeispiel nicht konstant, sondern steigt entsprechend der Steigung an. Dabei kann der Abstand auf einer Seite auch den Wert 0 betragen, d.h. der Ausgleichsbehälter stützt sich auf der besagten Seite direkt am Kühlnetz ab bzw. er berührt das Kühlnetz. Schließlich kann die Bodenfläche des Ausgleichsbehälters eine strömungstechnisch günstige Form erhalten, die den Einsatz von separaten Luftleitelementen erübrigt.In another embodiment, or in addition, the surge tank may be arranged obliquely, so that its bottom surface forms an acute angle with the plane of the cooling network, whereby the expansion tank itself can act as an air guide. The mentioned optimized distance from the cooling network is not constant in this embodiment, but increases according to the slope. The distance on one side may also be 0, i. the expansion tank is supported on the said side directly on the cooling network or it touches the cooling network. Finally, the bottom surface of the expansion tank can obtain a fluidically favorable shape, which eliminates the need for separate air guide elements.

Ferner kann die Leistungseinbuße durch die Verwendung eines Radialventilators kompensiert werden, der bei gleicher Leistungsaufnahme deutlich höhere Luftfördermengen als ein Axialventilator aufweist.Furthermore, the performance penalty can be compensated by the use of a centrifugal fan, which has the same power consumption significantly higher air flow rates than an axial fan.

Die Befestigung des Ausgleichsbehälters wird vorzugsweise direkt am Kühlnetz vorgenommen. Dazu sind in von Wellrippen freien Ausschnitten Halter zwischen den Flachrohren des Kühlnetzes angeordnet, die mit den Flachrohren metallisch verbunden sind und eine ausreichend stabile Befestigung und Abstützung erlauben.The attachment of the expansion tank is preferably made directly on the cooling network. For this purpose, holders are arranged between the flat tubes of the cooling network in corrugations free of corrugated ribs, which are metallically connected to the flat tubes and allow a sufficiently stable attachment and support.

Die erfindungsgemäße Lösung ist hinsichtlich der Gesamtkosten für die Kühlanlage, im Vergleich mit Kühlanlagen, die den Ausgleichsbehälter an einem Sammelkasten vorsehen, sehr günstig, weil standardmäßige Sammelkästen für die Kühler der Kühlanlage verwendet werden können. Bei der erfindungsgemäßen Lösung können auch sehr einfach Ausgleichsbehälter unterschiedlicher Größe eingesetzt werden, ohne daß weitgehende Änderungen an den übrigen Teilen der Kühlanlage erforderlich werden.The solution according to the invention is very low in terms of the total cost of the cooling system, compared with cooling systems that provide the surge tank on a collecting box, because standard headers can be used for the cooler of the cooling system. In the solution according to the invention can also be used very easily equalization tank different size without extensive changes to the other parts of the cooling system are required.

Die Erfindung wird nachfolgend in einem Ausführungsbeispiel beschrieben. Die beiliegenden Figuren zeigen:

Fig. 1
Seitenansicht der Kühlanlage;
Fig. 2
Ansicht von hinten auf die Kühlanlage;
Fig. 3
Ansicht von vorne auf die Kühlanlage;
Fig. 4
Perspektivansicht auf den Ladeluftkühler mit dem Ausgleichsbehälter;
Fig. 5
Draufsicht von Fig. 4;
Fig. 6
Einzelheit der Befestigung
The invention will be described below in an embodiment. The enclosed figures show:
Fig. 1
Side view of the cooling system;
Fig. 2
Rear view of the cooling system;
Fig. 3
Front view of the cooling system;
Fig. 4
Perspective view of the intercooler with the expansion tank;
Fig. 5
Top view of Fig. 4;
Fig. 6
Detail of the attachment

Die kastenförmige Kühlanlage 1 besteht aus einem im Bild oben angeordneten Ladeluftkühler 2, der Sammelkästen 10; 11, einen Ladelufteinlass 21, einen Ladeluftauslass 22 und ein Kühlnetz 8 aufweist, das nicht gezeichnet wurde. Das Kühlnetz 8 ist jedoch prinzipiell identisch mit dem Kühlnetz 8 des Kühlflüssigkeitskühlers 3, das aus Fig. 1 hervorgeht. Das Kühlnetz 8 besteht aus Flachrohren 7 und zwischen den Flachrohren 7 angeordneten Wellrippen 6. Die Enden der Flachrohre 7 sind mit gegenüberliegenden Sammelkästen 10 und 11 verbunden. Die Kühlflüssigkeit oder die zu kühlende Ladeluft strömt auf dem Weg vom Sammelkasten 10 zum Sammelkasten 11 durch die Flachrohre 7 und wird mittels Kühlluft, die durch die Wellrippen 6 strömt, gekühlt. Die Kühlluft wird von einem Radialventilator 14 durch eine in der Frontwand 16 angeordnete Öffnung 20 mit einer Einströmdüse 15 (Fig. 3) angesaugt und durch die Kühlnetze 8 sämtlicher Kühler der Anordnung befördert. Die Kühlanlage 1 ist an der Rückseite mittels der Rückwand 17 verschlossen.The box-shaped cooling system 1 consists of an in the picture above arranged intercooler 2, the collecting tanks 10; 11, a charge air inlet 21, a charge air outlet 22 and a cooling network 8, which has not been drawn. However, the cooling network 8 is in principle identical to the cooling network 8 of the cooling liquid cooler 3, which is apparent from Fig. 1. The cooling network 8 consists of flat tubes 7 and arranged between the flat tubes 7 corrugated fins 6. The ends of the flat tubes 7 are connected to opposite header boxes 10 and 11. The cooling liquid or the charge air to be cooled flows on the way from the collecting box 10 to the collecting box 11 through the flat tubes 7 and is cooled by means of cooling air flowing through the corrugated fins 6. The cooling air is drawn by a centrifugal fan 14 through an opening 20 located in the front wall 16 with an inlet nozzle 15 (Figure 3) and conveyed through the cooling nets 8 of all the radiators of the arrangement. The cooling system 1 is closed at the rear by means of the rear wall 17.

Der Ausgleichsbehälter 4 enthält Kühlflüssigkeit und ist strömungstechnisch in nicht gezeigter Weise z. B. mit dem Kühlflüssigkeitskühler 3 verbunden und ist Bestandteil des Kreislaufes. Er ist am höchsten Punkt der Kühlanlage 1 angeordnet, damit dort Gaseinschlüsse aus der Kühlflüssigkeit entweichen können. Zum Auffüllen des Systems ist ein Einfüllstutzen 13 am Ausgleichsbehälter 4 angeordnet. Der Ausgleichsbehälter 4 hat einen Abstand a vom Kühlnetz 8 des Ladeluftkühlers 2. Wie auch die Fig. 2 zeigt, deckt der Ausgleichsbehälter 4 in diesem Ausführungsbeispiel die gesamte Fläche des Kühlnetzes 8 ab. Dadurch kann der Ausgleichsbehälter 4 bei gleichem Fassungsvermögen mit geringerer Bauhöhe ausgeführt werden, wodurch die Gesamtbauhöhe der Kühlanlage 1 reduziert wird. Der Boden 5 des Ausgleichsbehälters 4 hat in diesem Ausführungsbeispiel keinen konstanten Abstand a zum Kühlnetz 8. Der Abstand a steigt von der Vorderseite zur Rückseite der Kühlanlage 1 an, wodurch der Boden 5 die Funktion eines Luftleitbleches einnimmt und den überwiegenden Anteil der abströmenden Kühlluft (Pfeile in Fig. 1) entweder zur weiteren Nutzung oder ins Freie ableitet. Dort wo der geringe Abstand a vorhanden ist, hat es sich als vorteilhaft herausgestellt, diesen Abstand a mit einem Abdeckblech 9 zu schließen, um die Kühlluft gezielt abzuführen. Insgesamt beeinträchtigt eine solche Anordnung des Ausgleichsbehälters 4 die Kühlleistung nur unwesentlich und ist ein ausgezeichneter Kompromiß hinsichtlich einer hohen Kühlleistung bei kompakter Gestaltung der gesamten Kühlanlage und dem Erfordernis der Anordnung des Ausgleichsbehälters 4, als Voraussetzung für ein funktionierendes Kühlsystem des Kraftfahrzeuges. Der Ausgleichsbehälter 4 ist mittels Halter 12 am Ladeluftkühler 2 befestigt worden.The expansion tank 4 contains coolant and is fluidically in a manner not shown z. B. connected to the cooling liquid cooler 3 and is part of the circuit. It is located at the highest point of the cooling system 1, so that there can escape gas bubbles from the cooling liquid. To fill the system, a filler neck 13 is arranged on the expansion tank 4. The expansion tank 4 has a distance a from the cooling network 8 of the charge air cooler 2. As also shown in FIG. 2, the expansion tank 4 covers the entire surface of the cooling network 8 in this embodiment. As a result, the expansion tank 4 can be designed with the same capacity with less height, whereby the overall height of the cooling system 1 is reduced. The bottom 5 of the surge tank 4 has in this embodiment, no constant distance a to the cooling network 8. The distance a increases from the front to the back of the cooling system 1, whereby the bottom 5 assumes the function of a baffle and the majority of the outflowing cooling air (arrows in Fig. 1) either for further use or to the outside. Where the small distance a is present, it has been found to be advantageous to close this distance a with a cover plate 9 to selectively dissipate the cooling air. Overall, such an arrangement of the surge tank 4 affects the cooling performance only insignificantly and is an excellent compromise in terms of high cooling performance with a compact design of the entire cooling system and the requirement of the arrangement of the surge tank 4, as a prerequisite for a functioning cooling system of the motor vehicle. The expansion tank 4 has been attached by means of holder 12 to the intercooler 2.

Eine vorteilhafte Befestigung des Ausgleichsbehälters ist in den Fig. 4 und 5 gezeigt worden. Die beiden Figuren zeigen lediglich den Ladeluftkühler 2 oder einen Teil davon und den Ausgleichsbehälter 4. Die gezeigte Befestigung kommt hauptsächlich dann zur Anwendung, wenn ein Ausgleichsbehälter 4 verwendet werden kann, der einen kleineren Teil der Fläche des Kühlnetzes 8 abdeckt als in den Fig. 1 bis 3 gezeigt wurde. Es sind von Wellrippen 6 freie Bereiche vorgesehen, in denen die Halter 12 mit einem Ende zwischen den Flachrohren 7 eingesetzt wurden. Da vorzugsweise gelötete Kühlnetze 8 verwendet werden, sind die Halter 12 mit den Flachrohren 7 mittels Löten verbunden. Die Fig. 6 zeigt einen Querschnitt durch den Ladeluftkühler 2 im Bereich der Halter 12. Der Ladeluftkühler 2 weist zwei Rohrreihen auf. Das Ende der Halter 12 reicht über beide Rohrreihen, um ausreichende Haltbarkeit zu bieten.An advantageous attachment of the surge tank has been shown in Figs. 4 and 5. The two figures show only the intercooler 2 or a part thereof and the expansion tank 4. The attachment shown is mainly used when a surge tank 4 can be used, which covers a smaller part of the surface of the cooling network 8 than in FIG to 3 was shown. There are provided by corrugated fins 6 free areas in which the holder 12 were inserted with one end between the flat tubes 7. Since soldered cooling grids 8 are preferably used, the holders 12 are connected to the flat tubes 7 by means of soldering. 6 shows a cross section through the intercooler 2 in the region of the holder 12. The intercooler 2 has two rows of tubes. The end of the holder 12 extends over both rows of tubes to provide sufficient durability.

Claims (5)

  1. Box-shaped cooling system (1) for motor vehicles, comprising charge air coolers (2), cooling liquid coolers (3) which are assembled in a box shape, comprise a cooling network (8) having flat tubes (7) and fins (6), and include header boxes (10, 11), as well as if appropriate other coolers or heat exchangers, a radial fan (14) which rotates in the interior as well as a front and a rear wall (16, 17), and having at least one compensation tank (4) for the cooling liquid, characterized in that the compensation tank (4) is arranged in such a way that its projected area covers a significant part of the area of the cooling network (8) of a cooler (2) and the compensating tank (4) discharges the cooling air.
  2. Box-shaped cooling system according to Claim 1, characterized in that the compensation tank (4) is located above the upper, horizontally arranged charge air cooler (2) and is arranged at an optimized distance (a) therefrom, the base (5) of the compensation tank (4) performing the function of an air guide plate or the like.
  3. Box-shaped cooling system according to Claim 1 or 2, characterized in that the base (5) of the compensation tank (4) is formed such that it rises obliquely with respect to the plane of the cooling network (8), a covering plate (9) being arranged on the side at the shortest distance (a) from the cooling network.
  4. Box-shaped cooling system according to Claim 1, 2 or 3, characterized in that the compensation tank (4) is secured to the cooling network (8), for which purpose holders (12) are arranged between the flat tubes (7) in sections which are devoid of fins (6), and these holders are metallically joined to the flat tubes (7).
  5. Box-shaped cooling system according to Claim 1, 2 or 3, characterized in that the compensation tank (4) is secured to the header boxes (10; 11) and/or the side parts (18) of the charge air cooler (2) and/or the front and rear walls (16; 17) of the cooling system (1).
EP01106769A 2000-04-12 2001-03-17 Box-shaped cooling system for a motor car Expired - Lifetime EP1146210B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10018089 2000-04-12
DE10018089A DE10018089A1 (en) 2000-04-12 2000-04-12 Box-shaped cooling system for motor vehicles

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EP1146210A2 EP1146210A2 (en) 2001-10-17
EP1146210A3 EP1146210A3 (en) 2003-03-05
EP1146210B1 true EP1146210B1 (en) 2006-09-06

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US (1) US6427766B2 (en)
EP (1) EP1146210B1 (en)
AT (1) ATE338884T1 (en)
DE (2) DE10018089A1 (en)

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AT13845U1 (en) * 2013-04-17 2014-10-15 Pustelnik Philipp Dipl Ing Attachment for a hydraulic oil-air cooler
JP6454142B2 (en) * 2014-11-28 2019-01-16 日立建機株式会社 Construction machinery
US10563925B2 (en) * 2017-07-12 2020-02-18 Caterpillar Inc. Cooling assembly for service vehicle
EP3527799A1 (en) 2018-02-20 2019-08-21 Modine Manufacturing Company Frameless cooling module

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Also Published As

Publication number Publication date
EP1146210A2 (en) 2001-10-17
ATE338884T1 (en) 2006-09-15
US20010035283A1 (en) 2001-11-01
DE10018089A1 (en) 2001-11-29
US6427766B2 (en) 2002-08-06
EP1146210A3 (en) 2003-03-05
DE50110914D1 (en) 2006-10-19

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