EP1703242A1 - Heat exchanger, especially cooling fluid cooler - Google Patents

Heat exchanger, especially cooling fluid cooler Download PDF

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Publication number
EP1703242A1
EP1703242A1 EP06004302A EP06004302A EP1703242A1 EP 1703242 A1 EP1703242 A1 EP 1703242A1 EP 06004302 A EP06004302 A EP 06004302A EP 06004302 A EP06004302 A EP 06004302A EP 1703242 A1 EP1703242 A1 EP 1703242A1
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EP
European Patent Office
Prior art keywords
opening
heat exchanger
wall
exchanger according
partition
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Granted
Application number
EP06004302A
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German (de)
French (fr)
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EP1703242B1 (en
Inventor
Klaus Dipl.-Ing. Kalbacher
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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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/06—Safety or protection arrangements; Arrangements for preventing malfunction by using means for draining heat exchange media from heat exchangers

Definitions

  • the invention relates to a heat exchanger, in particular a cooling liquid cooler for a motor vehicle, having two collection boxes arranged on opposite sides with longitudinal and end walls and having a multiplicity of openings each receiving a tube through which a medium flows, with an inlet and an outlet , And with a partition wall in the collecting box, in which there is a breakthrough, which can be closed by means of a drain member, and with a closable opening in a wall of the collecting tank.
  • the heat exchanger is asdestattkeitkühler from the EP 818 663 B1 known.
  • a partition is arranged in one of the collecting boxes, the opening of which is closable with a sealing plug.
  • the cooler can be formed with or without low temperature range. It is in the EP 818 663 B1 always just a single cooling circuit, which is passed through thedeckenkeitkühler.
  • the known solution can not be adopted, ie for the emptying of the circuits would have independent organs, possibly even in several heat exchangers, are used, which requires appropriate effort.
  • the object of the invention is to heat exchanger, in particular for a motor vehicle, in such a way that the emptying is further simplified.
  • a second partition wall approximately at the same height, is arranged in the other collection box, wherein the first and the second partition wall separates two cooling circuits from each other and in that the discharge member is designed so that the contents of both circuits can be emptied with a discharge member, the emptying of both circuits was achieved and simplified.
  • Fig. 1 shows a view of a cooling module of a motor vehicle.
  • 2 shows schematically the lower part of the cooling liquid cooler present in the cooling module in one first embodiment.
  • Fig. 3 shows in a section a second embodiment.
  • the cooling module comprises several heat exchangers, all of which are in the form of aluminum as all-metal heat exchangers and which can therefore be recycled without expensive material separation.
  • a cooling liquid cooler 1 and above a charge air cooler 20.
  • the cooling air flows through the cooling module, which is usually arranged in the front region of the motor vehicle.
  • a condenser for the air conditioning system and, if required, further heat exchangers, for example oil coolers, which are not clearly visible in FIG.
  • the left header 3 of the cooling liquid cooler 1 has an inlet 5 for the cooling liquid and the right header 2 a corresponding outlet 6.
  • the inlet 5 and the outlet 6 are in an embodiment not shown on one and the same collecting box, which belongs to the prior art and therefore should be included in the preamble of claim 1.
  • the described embodiment forms part of a first circuit not otherwise shown.
  • Another separate circuit is present, which is also not shown further.
  • the cooling liquid enters the lower part of the cooling liquid cooler 1 via the inlet 50 at the right collecting box 2 and leaves this lower part via the outlet 60 at the left collecting box 3. Since both circuits (not shown further) are independent of one another, the direction of flow is optional. It was indicated by arrows for this embodiment.
  • the cooling liquid flowing through the lower part of the cooling liquid cooler 1 leaves the same at a lower temperature, therefore, there is noted "low-temperature flow”.
  • main flow is noted, which expresses that the local first circuit has a much larger mass flow. Above all, it serves to cool the engine.
  • Fig. 2 shows now the lower part of thedeckenkeitskühlers 1 a little closer, with details have been omitted.
  • the coolant radiator 1 is known to have one or more rows of flat tubes 4. Located between the flat tubes 4 corrugated fins 15 or the like, through which the cooling air flows. The lower part of the coolant radiator 1 is bounded by a side part 40 which connects the two header tanks 2, 3 . Side parts 40, flat tubes 4, corrugated fins 15 and
  • Collector boxes 2, 3 are, like the other heat exchangers of the cooling module, designed as a solder joint, so that an intimate contact is present, which allows efficient heat exchange between cooling air and coolant.
  • the mentioned two circuits are separated by a partition 10 in the left header 2 and another partition 14 in the right header 3 . This should be indicated by means of the flow arrows with solid (above) or dashed lines (below).
  • the discharge member 12 closes in this position at the same time the opening 13 in the wall of the collecting tank 2. It can be seen from the illustration that after removal of the drain member 12, the contents of both circuits can be emptied, since the hydraulic separation between the circuits canceled and the discharge opening 13 is no longer closed.
  • Fig. 3 shows an alternative to the embodiment described above, wherein only a section is shown, showing the design of the discharge member 12 and its interaction in the immediate region thereof.
  • the rest is identical to FIG. 2.
  • the drain member 12 is formed in two parts. It has a sealing plug 17, which sits in the opening 13 of the wall of the collecting tank 2 .
  • the closure plug 17 has a pin 9 which blocks the passage opening 7 in the second part of the discharge member 12, for example in a pipe piece 8 . After removal of the sealing plug 17 from the opening 13 also both circuits can be emptied, the liquid flows from the upper circuit through the passage opening 7 and on to the opening 13 and the liquid from the lower circuit will flow directly through the opening 13 .
  • the pipe section 8 can remain in its position.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The cooler has accumulative containers (2, 3) with a set of tubes (4) via which a medium e.g. cooling fluid of a motor vehicle engine, flows. Separating plates (10, 14) are arranged within the containers (3, 2), respectively, and separate two cycles of the fluid from each other. A discharge unit (12) blocking a break-through (11) of the plate (10) is designed in such a manner that the content of the fluid cycles is dischargeable.

Description

Die Erfindung betrifft einen Wärmetauscher, insbesondere einen Kühlflüssigkeitskühler für ein Kraftfahrzeug, mit zwei auf gegenüberliegenden Seiten angeordneten Sammelkästen mit Längs - und Stirnwänden sowie mit einer Vielzahl von Öffnungen, die je ein Rohr aufnehmen, durch die ein Medium strömt, mit einem Eintritt und einem Austritt, sowie mit einer Trennwand im Sammelkasten, in der sich ein Durchbruch befindet, der mittels eines Ablassorgans verschließbar ist, und mit einer verschließbaren Öffnung in einer Wand des Sammelkastens.The invention relates to a heat exchanger, in particular a cooling liquid cooler for a motor vehicle, having two collection boxes arranged on opposite sides with longitudinal and end walls and having a multiplicity of openings each receiving a tube through which a medium flows, with an inlet and an outlet , And with a partition wall in the collecting box, in which there is a breakthrough, which can be closed by means of a drain member, and with a closable opening in a wall of the collecting tank.

Der Wärmetauscher ist als Kühlflüssigkeitskühler aus dem EP 818 663 B1 bekannt. Dort ist in einem der Sammelkästen eine Trennwand angeordnet, deren Öffnung mit einem Verschlussstopfen verschließbar ist. Je nach Ausbildung des verwendeten Verschlussstopfens kann der Kühler mit oder ohne Niedertemperaturbereich ausgebildet werden. Es handelt sich in dem EP 818 663 B1 stets nur um einen einzigen Kühlkreislauf, der durch den Kühlflüssigkeitskühler geführt wird. Bestehen jedoch mehrere unabhängige Kreisläufe kann die bekannte Lösung nicht übernommen werden, d. h. für die Entleerung der Kreisläufe müssten unabhängige Organe, möglicherwiese sogar in mehreren Wärmetauschern, eingesetzt werden, was entsprechenden Aufwand erfordert.The heat exchanger is as Kühlflüssigkeitkühler from the EP 818 663 B1 known. There, a partition is arranged in one of the collecting boxes, the opening of which is closable with a sealing plug. Depending on the design of the sealing plug used, the cooler can be formed with or without low temperature range. It is in the EP 818 663 B1 always just a single cooling circuit, which is passed through the Kühlflüssigkeitkühler. However, if there are several independent circuits, the known solution can not be adopted, ie for the emptying of the circuits would have independent organs, possibly even in several heat exchangers, are used, which requires appropriate effort.

Deshalb besteht die Aufgabe der Erfindung darin, Wärmetauscher, insbesondere für ein Kraftfahrzeug, so auszubilden, dass die Entleerung weiter vereinfacht wird.Therefore, the object of the invention is to heat exchanger, in particular for a motor vehicle, in such a way that the emptying is further simplified.

Diese Aufgabe wird erfindungsgemäß durch die im Patentanspruch 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in claim 1.

Dadurch, dass eine zweite Trennwand, etwa auf gleicher Höhe, im anderen Sammelkasten angeordnet ist, wobei die erste und die zweite Trennwand zwei Kühlkreisläufe voneinander trennt und dadurch, dass das Ablassorgan so ausgebildet ist, dass der Inhalt beider Kreisläufe mit einem Ablassorgan entleerbar ist, wurde die Entleerung beider Kreisläufe erreicht und vereinfacht.Characterized in that a second partition wall, approximately at the same height, is arranged in the other collection box, wherein the first and the second partition wall separates two cooling circuits from each other and in that the discharge member is designed so that the contents of both circuits can be emptied with a discharge member, the emptying of both circuits was achieved and simplified.

Besonders vorteilhaft ist die vorgeschlagene Lösung zur Anwendung bei sogenannten "Ganz-Metall-Wärmetauschern", die also auch Sammelkästen aus Metall, beispielsweise aus Aluminium, besitzen, weil eine zusätzliche Öffnung in der Wand des Sammelkastens vermieden wird, deren Herstellung bei solchen Sammelkästen aufwendig ist.Particularly advantageous is the proposed solution for use in so-called "all-metal heat exchangers", which also have collecting boxes made of metal, for example aluminum, because an additional opening in the wall of the collecting tank is avoided, the production of such collecting tanks is expensive ,

Die Erfindung wird anhand dreier Figuren detaillierter beschrieben. Die Fig. 1 zeigt einen Blick auf ein Kühlmodul eines Kraftfahrzeuges. Die Fig. 2 zeigt schematisch den unteren Teil des im Kühlmodul vorhandenen Kühlflüssigkeitskühlers in einem ersten Ausführungsbeispiel. Die Fig. 3 zeigt in einem Ausschnitt ein zweites Ausführungsbeispiel.The invention will be described in more detail with reference to three figures. Fig. 1 shows a view of a cooling module of a motor vehicle. 2 shows schematically the lower part of the cooling liquid cooler present in the cooling module in one first embodiment. Fig. 3 shows in a section a second embodiment.

Das Kühlmodul umfasst gemäß Fig. 1 mehrere Wärmetauscher, die alle als Ganz-Metall-Wärmetauscher als Aluminium ausgebildet sind und die deshalb ohne aufwendige Materialtrennung einer Wiederverwertung zugeführt werden können. Dies entspricht sowohl den Forderungen der Automobilhersteller als auch der Öffentlichkeit und ist seit vielen Jahren Standard. Zu erkennen ist ein Kühlflüssigkeitskühler 1 und oberhalb davon ein Ladeluftkühler 20. Die Kühlluft strömt durch das Kühlmodul, welches gewöhnlich im Frontbereich des Kraftfahrzeuges angeordnet ist. In Luftströmungsrichtung vor dem Kühlflüssigkeitskühler 1 befindet sich ein Kondensator für die Klimaanlage und bedarfsweise weitere Wärmetauscher, beispielsweise Ölkühler, die in der Fig. 1 nicht deutlich erkennbar sind. Der linke Sammelkasten 3 des Kühlflüssigkeitskühlers 1 hat einen Eintritt 5 für die Kühlflüssigkeit und der rechte Sammelkasten 2 einen entsprechenden Austritt 6. Der Eintritt 5 und der Austritt 6 befinden sich bei einem nicht gezeigten Ausführungsbeispiel an ein und demselben Sammelkasten, was zum Stand der Technik gehört und deshalb auch vom Oberbegriff des Patentanspruchs 1 umfasst sein soll. Die beschriebene Ausbildung stellt einen Teil eines ansonsten nicht weiter gezeigten ersten Kreislaufes dar. Ein weiterer davon getrennter Kreislauf ist vorhanden, der ebenfalls nicht weiter gezeigt ist. Aus diesem weiteren Kreislauf tritt die Kühlflüssigkeit über den Eintritt 50 am rechten Sammelkasten 2 in den unteren Teil des Kühlflüssigkeitskühlers 1 ein und verlässt diesen unteren Teil über den Austritt 60 am linken Sammelkasten 3. Da beide nicht weiter gezeigten Kreisläufe unabhängig voneinander sind, ist die Strömungsrichtung freigestellt. Sie wurde durch Pfeile für dieses Ausführungsbeispiel angezeigt. Die Kühlflüssigkeit, welche durch den unteren Teil des Kühlflüssigkeitskühlers 1 strömt, verlässt denselben mit einer tieferen Temperatur, weshalb dort "Niedertemperaturdurchströmung" vermerkt ist. Darüber ist "Hauptdurchströmung" vermerkt, wodurch zum Ausdruck kommt, dass der dortige erste Kreislauf einen wesentlich größeren Massenstrom besitzt. Er dient vor allem der Kühlung der Antriebsmaschine.According to FIG. 1, the cooling module comprises several heat exchangers, all of which are in the form of aluminum as all-metal heat exchangers and which can therefore be recycled without expensive material separation. This meets both the demands of car manufacturers and the public and has been standard for many years. Evident is a cooling liquid cooler 1 and above a charge air cooler 20. The cooling air flows through the cooling module, which is usually arranged in the front region of the motor vehicle. In the direction of air flow in front of the cooling liquid cooler 1 there is a condenser for the air conditioning system and, if required, further heat exchangers, for example oil coolers, which are not clearly visible in FIG. The left header 3 of the cooling liquid cooler 1 has an inlet 5 for the cooling liquid and the right header 2 a corresponding outlet 6. The inlet 5 and the outlet 6 are in an embodiment not shown on one and the same collecting box, which belongs to the prior art and therefore should be included in the preamble of claim 1. The described embodiment forms part of a first circuit not otherwise shown. Another separate circuit is present, which is also not shown further. For this further circuit, the cooling liquid enters the lower part of the cooling liquid cooler 1 via the inlet 50 at the right collecting box 2 and leaves this lower part via the outlet 60 at the left collecting box 3. Since both circuits (not shown further) are independent of one another, the direction of flow is optional. It was indicated by arrows for this embodiment. The cooling liquid flowing through the lower part of the cooling liquid cooler 1 leaves the same at a lower temperature, therefore, there is noted "low-temperature flow". In addition, "main flow" is noted, which expresses that the local first circuit has a much larger mass flow. Above all, it serves to cool the engine.

Die Fig. 2 zeigt nun den unteren Teil des Kühlflüssigkeitskühlers 1 etwas näher, wobei Details weggelassen wurden. Der Kühlmittelkühler 1 besitzt bekanntlich eine oder mehrere Reihen von Flachrohren 4. Zwischen den Flachrohren 4 befinden sich Wellrippen 15 oder dergleichen, durch die die Kühlluft strömt. Der untere Teil des Kühlmittelkühlers 1 wird durch ein Seitenteil 40 begrenzt, welches beide Sammelkästen 2, 3 verbindet. Seitenteile 40 , Flachrohre 4, Wellrippen 15 undFig. 2 shows now the lower part of the Kühlflüssigkeitskühlers 1 a little closer, with details have been omitted. The coolant radiator 1 is known to have one or more rows of flat tubes 4. Located between the flat tubes 4 corrugated fins 15 or the like, through which the cooling air flows. The lower part of the coolant radiator 1 is bounded by a side part 40 which connects the two header tanks 2, 3 . Side parts 40, flat tubes 4, corrugated fins 15 and

Sammelkästen 2, 3 sind, wie ebenfalls die anderen Wärmetauscher des Kühlmoduls, als Lötverbindung ausgeführt, so dass ein inniger Kontakt vorhanden ist, der einen effizienten Wärmeaustausch zwischen Kühlluft und Kühlflüssigkeit zulässt. Die erwähnten zwei Kreisläufe werden durch eine Trennwand 10 im linken Sammelkasten 2 und eine weitere Trennwand 14 im rechten Sammelkasten 3 getrennt. Das soll mittels der Strömungspfeile mit durchgezogenen (oberhalb) bzw. mit gestrichelten Linien (unterhalb) angezeigt werden. In der linken Trennwand 10 ist ein Durchbruch 11 vorhanden, der verschlossen ist, solange das Ablassorgan 12, in der in Fig. 2 gezeigten Verschlussposition bleibt. Das Ablassorgan 12 verschließt in dieser Position gleichzeitig die Öffnung 13 in der Wand des Sammelkastens 2. Es ist aus der Darstellung erkennbar, dass nach Entfernung des Ablassorgans 12 der Inhalt beider Kreisläufe entleert werden kann, da die hydraulische Trennung zwischen den Kreisläufen aufgehoben und die Ablassöffnung 13 nicht mehr verschlossen ist.Collector boxes 2, 3 are, like the other heat exchangers of the cooling module, designed as a solder joint, so that an intimate contact is present, which allows efficient heat exchange between cooling air and coolant. The mentioned two circuits are separated by a partition 10 in the left header 2 and another partition 14 in the right header 3 . This should be indicated by means of the flow arrows with solid (above) or dashed lines (below). In the left partition wall 10, there is an aperture 11 which is closed as long as the vent member 12 remains in the closed position shown in FIG. The discharge member 12 closes in this position at the same time the opening 13 in the wall of the collecting tank 2. It can be seen from the illustration that after removal of the drain member 12, the contents of both circuits can be emptied, since the hydraulic separation between the circuits canceled and the discharge opening 13 is no longer closed.

Die Fig. 3 zeigt eine Alternative zur vorstehend beschriebenen Ausführung, wobei lediglich ein Ausschnitt abgebildet ist, der die Gestaltung des Ablassorgans 12 und dessen Zusammenwirkung im unmittelbaren Bereich desselben zeigt. Der Rest ist identisch mit der Fig. 2. Das Ablassorgan 12 ist zweiteilig ausgebildet . Es besitzt einen Verschlussstopfen 17, der in der Öffnung 13 der Wand des Sammelkastens 2 sitzt. Der Verschlussstopfen 17 besitzt einen Zapfen 9, der die Durchgangsöffnung 7 im zweiten Teil des Ablassorgans 12, beispielsweise in einem Rohrstück 8, blockiert. Nach Entfernung des Verschlussstopfens 17 aus der Öffnung 13 können ebenfalls beide Kreisläufe entleert werden, wobei die Flüssigkeit aus dem oberen Kreislauf durch die Durchgangsöffnung 7 und weiter zur Öffnung 13 strömt und die Flüssigkeit aus dem unteren Kreislauf direkt durch die Öffnung 13 strömen wird. Das Rohrstück 8 kann dabei in seiner Position bleiben.Fig. 3 shows an alternative to the embodiment described above, wherein only a section is shown, showing the design of the discharge member 12 and its interaction in the immediate region thereof. The rest is identical to FIG. 2. The drain member 12 is formed in two parts. It has a sealing plug 17, which sits in the opening 13 of the wall of the collecting tank 2 . The closure plug 17 has a pin 9 which blocks the passage opening 7 in the second part of the discharge member 12, for example in a pipe piece 8 . After removal of the sealing plug 17 from the opening 13 also both circuits can be emptied, the liquid flows from the upper circuit through the passage opening 7 and on to the opening 13 and the liquid from the lower circuit will flow directly through the opening 13 . The pipe section 8 can remain in its position.

Da Medien in Kreisläufen von Kraftfahrzeugen gewöhnlich getrennt entsorgt werden müssen, ist der vorstehende Vorschlag vorzugsweise dort zur Anwendung vorgesehen, wo in beiden Kreisläufen gleiche Medien, beispielsweise Kühlflüssigkeiten, vorhanden sind.Since media usually have to be disposed of separately in motor vehicle circuits, the above proposal is preferably provided for use where the same media, such as cooling liquids, are present in both circuits.

Claims (5)

Wärmetauscher, insbesondere Kühlflüssigkeitskühler (1) für ein Kraftfahrzeug, mit zwei auf gegenüberliegenden Seiten angeordneten Sammelkästen (2, 3) mit Längs - und Stirnwänden und mit wenigstens einer Reihe von Rohren (4), durch die ein Medium, beispielsweise die Kühlflüssigkeit eines Kraftfahrzeugmotors, strömt, wobei das andere Medium, beispielsweise Kühlluft, zwischen den Rohren (4) hindurch strömt, mit einem Eintritt (5) und einem Austritt (6), sowie mit einer Trennwand (10) in einem der Sammelkästen (2), in der sich ein Durchbruch (11) befindet, der mittels eines Ablassorgans (12) verschließbar ist, und mit einer verschließbaren Öffnung (13) in einer Wand des Sammelkastens (2),
dadurch gekennzeichnet, dass wenigstens eine zweite Trennwand (14) im anderen Sammelkasten (3) angeordnet ist, wobei die erste und die zweite Trennwand (10, 14) zwei Kreisläufe voneinander trennt, solange der Durchbruch (11) in der ersten Trennwand (10) verschlossen bleibt, und dass das Ablassorgan (12) so ausgebildet ist, dass der Inhalt sämtlicher Kreisläufe damit im wesentlichen ablassbar ist.Heat exchangers, in particular cooling liquid coolers (1) for a motor vehicle, having two collecting tanks (2, 3) arranged on opposite sides with longitudinal and end walls and having at least one row of pipes (4) through which a medium, for example the cooling liquid of an automobile engine, flows, wherein the other medium, for example, cooling air, between the tubes (4) flows through, with an inlet (5) and an outlet (6), and with a partition (10) in one of the collecting tanks (2), in which a breakthrough (11) which is closable by means of a drain member (12), and with a closable opening (13) in a wall of the collecting tank (2),
characterized in that at least one second partition wall (14) is arranged in the other collecting box (3), the first and the second partition wall (10, 14) separating two circuits, as long as the opening (11) in the first partition wall (10) remains closed, and that the discharge member (12) is formed so that the contents of all circuits is thus substantially drained. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass als Ablassorgan (12) ein Stab vorgesehen ist, dessen ein Ende den Durchbruch (11) in der ersten Trennwand (10) und dessen anderes Ende die Öffnung (13) in der Wand verschließt und das herausnehmbar ist.A heat exchanger according to claim 1, characterized in that a rod is provided as a discharge member (12), one end of which closes the opening (11) in the first partition (10) and the other end closes the opening (13) in the wall and removes it is. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass als Ablassorgan (12) ein Rohrstück (8) vorgesehen ist, welches durch einen herausnehmbaren Verschlussstopfen (17) in der Öffnung (13) verschließbar ist.Heat exchanger according to claim 1, characterized in that a pipe piece (8) is provided as a drain member (12), which can be closed by a removable plug (17) in the opening (13). Wärmetauscher nach Anspruch 3, dadurch gekennzeichnet, dass das Rohrstück (8) kürzer als der Abstand zwischen der einen Trennwand (10) und der Wand ist, wobei am Verschlussstopfen (17) ein Zapfen (9) angeordnet ist, dessen Querschnitt etwa dem Querschnitt der Durchgangsöffnung (7) im Rohr (8) entspricht, um dieselbe zu verschließen.Heat exchanger according to claim 3, characterized in that the pipe section (8) is shorter than the distance between the one partition wall (10) and the wall, wherein on the closure plug (17) a pin (9) is arranged, whose cross section is approximately the cross section of Through opening (7) in the tube (8) corresponds to close the same. Wärmetauscher nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass beide Trennwände (10, 14) vorzugsweise etwa auf gleicher Höhe angeordnet sind.Heat exchanger according to one of the preceding claims, characterized in that both partitions (10, 14) are preferably arranged approximately at the same height.
EP06004302A 2005-03-16 2006-03-03 Heat exchanger, especially cooling fluid cooler Expired - Fee Related EP1703242B1 (en)

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DE102005012082A DE102005012082A1 (en) 2005-03-16 2005-03-16 Heat exchangers, in particular cooling liquid coolers

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EP1703242A1 true EP1703242A1 (en) 2006-09-20
EP1703242B1 EP1703242B1 (en) 2007-11-14

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US7721796B2 (en) 2010-05-25
US20060207755A1 (en) 2006-09-21
DE502006000175D1 (en) 2007-12-27
EP1703242B1 (en) 2007-11-14
DE102005012082A1 (en) 2006-09-21

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