EP1774242B1 - Radiator, especially radiator for vehicles - Google Patents

Radiator, especially radiator for vehicles Download PDF

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Publication number
EP1774242B1
EP1774242B1 EP05768706A EP05768706A EP1774242B1 EP 1774242 B1 EP1774242 B1 EP 1774242B1 EP 05768706 A EP05768706 A EP 05768706A EP 05768706 A EP05768706 A EP 05768706A EP 1774242 B1 EP1774242 B1 EP 1774242B1
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EP
European Patent Office
Prior art keywords
radiator
side plate
width
headers
corrugated fins
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.)
Not-in-force
Application number
EP05768706A
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German (de)
French (fr)
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EP1774242A1 (en
Inventor
Joachim Kopp
Wolfgang Kramer
Juan Antonio Lopez Rico
Thomas Ruppel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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Publication date
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1774242A1 publication Critical patent/EP1774242A1/en
Application granted granted Critical
Publication of EP1774242B1 publication Critical patent/EP1774242B1/en
Not-in-force legal-status Critical Current
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • the present invention relates to a radiator, in particular a radiator as used in vehicles and is preferably integrated in the cooling circuit for an internal combustion engine.
  • Such coolers are usually designed as so-called tube radiators, in which extend between two preferably vertically aligned manifolds in the longitudinal direction of mutually parallel cooling tubes. In this case, a flow of a coolant from a manifold through the cooling tubes to the other manifold takes place.
  • a tube extending in the transverse direction of the extension that is to say the width of the cooler, and flowing, preferably gaseous cooling medium, such as ambient air.
  • the corrugated ribs are, in particular, a corrugated narrow sheet-metal strip whose ridge lines extend in the direction of the width of the radiator and which are held fastened alternately along the ridge lines to a lower or upper cooling tube, in particular by soldering to the cooling tubes are.
  • each corrugated fins it is known to provide above the uppermost and below the lowest cooling tube of the radiator also each corrugated fins.
  • a side plate on at least one of the sides extending parallel to the cooling tubes and across the width of the radiator.
  • a radiator as it serves in particular as a radiator for vehicles, has two extending in the vertical direction manifolds.
  • the headers are fluidly connected to each other in the longitudinal direction via mutually parallel cooling tubes.
  • the ridge lines extend in the direction of the width of the radiator and alternately abut each other on both sides of a cooling tube.
  • at least one side plate is provided which extends on the outside between the collecting pipes parallel to the cooling tubes and in its width substantially corresponds to the width of the corrugated ribs.
  • the at least one side plate to the headers adjacent areas a material weakening, such as in the EP 0 748 995 A2 shown.
  • the disadvantage can be compensated that due to Montagemanipulationen and manufacturing tolerances attaching the corrugated fins on the cooling tube or when attaching the side plate on the corrugated ribs in the region of the peripheral corrugated ribs, for example by pushing together the corrugated ribs and a slight excess of solder during soldering, a Flocking of the corrugated fins is formed, so that in the region which is adjacent to the headers, there is an increased rigidity of the corrugated fins with respect to the longitudinal extent.
  • the weakening of the material may consist of a reduction in the width of the material of the side panel in the region adjacent to the collecting tube.
  • the high flexibility and low rigidity of the side part is generated in particular in the area in which otherwise the highest load transfer from side plate to cooling tube via the corrugated fins takes place.
  • the reduction of the width of the material is formed such that the side plate has on at least one side a continuous, linear side edge in the longitudinal direction of the radiator.
  • a straight, linear front or rear end of the radiator plate is created, which is not changed by a reduction of the cross section in its contour. This measure creates in particular a defined outer contour of the radiator, for example, in view.
  • the object of the invention is to form side plates so that damage to the radiator can be reliably avoided.
  • the side bleach in the region of the material weakening from a small number, for example up to five narrow material fingers.
  • Each of the material fingers is a narrow material web, which is narrower than the width of the side strip and protrudes from a base body of the side plate in the direction of the collecting tube or extends as far as the collecting tube.
  • the material finger extends towards the last wave crest of a wave rib.
  • the formation of narrow material fingers allows a soft design of the side plate in the area of the fingers. In this case, it can be provided in particular that in each case a finger is formed marginally, so that an outwardly continuous side edge of the side plate is created.
  • the number of material fingers must be determined according to the requirements of rigidity and flexibility.
  • stiffeners which consist of an elevation in the profile formation in the vertical direction.
  • carrier-like stiffeners are created, which mainly increase the power and load absorption in the vertical direction of the material weakening area.
  • the at least one side plate is fastened exclusively to corrugated ribs, in particular connected to them by soldering.
  • the exclusive fixing of the side plate on the corrugated fins avoids a connection of the side plate with the headers, so that in this area there is no stiff support from the side plate to the headers, which are related to stresses due to different thermal expansion the adjacent cooling tube leads, which are transmitted through a wave plate.
  • the corrugated sheet is so stored against the headers floating on the ridgelines of the corrugated ribs.
  • a side plate gap is formed between side plate and manifold. The side plate does not extend directly to the headers, but is spaced from them by a gap.
  • This gap serves as an expansion space for the side plate in the longitudinal direction and on the other hand prevents forces are introduced from the side plate on the last flanks of the corrugated fins in the adjacent cooling tube and forces are introduced in the region of its base on the manifold, resulting in leaks in the radiator could lead.
  • the gap has a gap width, which extends a number of periods of the waves of the corrugated sheet, so over a certain number of comb lines of the corrugated sheet away.
  • the number of ridge lines is preferably below 20 and in particular between 5 and 15.
  • the FIG. 1 shows a section of a cooler 10 in three-dimensional representation.
  • the cooler is formed from a collecting tube 11, which extends in the direction of the vertical axis, ie the vertical.
  • cooling tubes 12 In the longitudinal direction between two headers 11 extending cooling tubes 12, wherein between each two cooling tubes corrugated fins 13 are arranged, which have ridge lines 14 which extend in the direction of the width B of the radiator.
  • the ridge lines 14 of the corrugated ribs are each in contact with a cooling pipe 12 arranged above and below and connected thereto by soldering.
  • the side plate 40 is attached to the top, which is in particular connected by soldering with the ridgelines of the corrugated fins 13.
  • the side plate has a width b, which corresponds substantially to the width B of the radiator and the corrugated fins 13.
  • FIG. 1 an embodiment in which in a region 49 which is adjacent to the collecting tube 11, the side plate is weakened in its rigidity that the side plate consists only of two material fingers 43, extending to the inner edge of the manifold 11, which in particular as Tube bottom 15 is formed, comes close.
  • the two material fingers 43 are arranged so that they are offset with respect to the outer side edge 42 of the side plate inwardly.
  • FIGS. 2a to 6b show in schematic diagrams of different embodiments of side plates in each case the FIG. 2a . 3a . 4a . 5a and 6a show a schematic side view, while the following Figures 2b, ... 2e . 3b , ... 6b each corresponding oversight on accordingly designed side panels show.
  • FIG. 2a shows the tube sheet 15 of a collecting tube 11 of a radiator 10 and a cooling tube 12 held in the tube bottom, wherein the cooling tube 12 is the uppermost cooling tube.
  • the corrugated fins 13 are arranged.
  • a weakening region 49 is formed by that on the upper side
  • the corrugated ribs 13 held side plate 40 does not extend to the tube sheet 15, but a portion 49 is formed in which no side plate is provided. In this case, the region 49 extends over several periods of waves of the corrugated fins 13.
  • the FIG. 2b shows in plan the embodiment of the FIG. 2a ,
  • the side plate 40 extends only to a region 49 which extends between the side plate 40 and the tube bottom 15 of the collecting tube 11.
  • a plurality of ridge lines 14 of the corrugated fins 13, which are not covered by the side panel 40, can be seen in the plan view in region 49.
  • the side plate is in the embodiments according to the FIG. 2 each connected only by soldering with adjacent ridge lines 14 of the corrugated fins 13, as well as the corrugated fins 13 are connected to the underlying cooling tube 12 by soldering in the lower ridge lines 14.
  • FIGS. 2c to 2e show corresponding embodiments, which only in the design of the side plate 40 of the embodiment according to the FIGS. 2a and 2b differ.
  • the side plate is in accordance with the FIGS. 2c to 2e each designed so that it extends almost to the tube plate 15 and thus to the manifold 11 and a total of at most a small number, for example, one or two ridge lines 14 of the corrugated fins are not in communication with the side plate 40. It is common to all three embodiments that in the region 49, in each case, a taper of the side plate takes place in its width b.
  • the side plate 40 runs in the embodiment according to the Figure 2c pointed, wherein the tip is formed in the middle of the width B of the radiator 10, wherein in the Figure 2d the tip of the side plate 40 is located in the region of a side edge 42, so that the side edge 42 at least on one side of the radiator extends at least almost to the tube plate 15 over the entire length of the radiator.
  • the FIG. 2e shows an embodiment, wherein the width b of the side plate is continuously tapered on both sides, the closer the weakening region 49 on the tube sheet 15. There is almost a transition to a finger-shaped portion of the side plate 40 instead.
  • the transmission of forces to the corrugated fins 13 is distributed over a larger area in this area.
  • the introduction of force takes place in a larger region of the cooling tube 12 so that no peak loads occur locally which can result in stress regions in the root region of the cooling tube 12 on the tubesheet 15.
  • FIGS. 3a and 3b as well as the FIGS. 4a and 4b show in each case in a schematically sectioned side view or top view of an embodiment of a side plate with a weakened area in the vicinity of the manifold 11.
  • the cooling tube 12 Inserted into the tubesheet and tightly connected thereto by soldering is the cooling tube 12, again showing only one cooling tube.
  • the corrugated fins 13 are arranged, wherein the lower ridge lines 14 are connected by soldering with cooling tube 12.
  • the side part 40 is connected in each case to the corrugated ribs 13, wherein the side part 40 in each case only just reaches the tube sheet 15 and is spaced therefrom by a narrow gap 47.
  • a stiffener 44 is formed, which extends in the longitudinal direction of the side plate 40, but is raised in the vertical direction over the remaining course of the side plate 40.
  • FIGS. 3a and 3b an embodiment, wherein adjacent to the weakening region 49, the side plate 40 has a bend 45, which has a combing line 46 extending in the direction of the width b of the side plate.
  • This deflection 45 ensures a high degree of flexibility of the weakening region 49, which is given in particular by bending the side plate in the region of the deflection 45 and a high extensibility in the longitudinal direction of the side plate 40.
  • FIGS. 4a and 4b shows - how FIG. 1 - A design in which the weakening region 49 is formed by fingers 43, wherein the stiffeners 44 hineinerstecken over the fingers away into the unattenuated region of the side plate 40.
  • the fingers 43 are thus protected against bending in the vertical direction, namely the vertical direction by the stiffeners 44. Only because the side plate 40 does not extend over the entire width B of the cooler in the region of the fingers 43 ensures that there is no excessive stiffening in the foot region of the cooling tubes 12 on the tubesheet 15.
  • FIGS. 5a and 5b show an embodiment in which recesses 48 are given in the material of the side plate 40 as a weakening.
  • a deflection 45 is formed in the transition region between the weakening region 49 and the remaining portion of the side panel 40, wherein in the region of the deflection 45 and a weakening of the side plate 40 is given by the fact that in this area the side plate 40 is not over the full width B of the radiator 10 extends.
  • the recesses 48 are formed in particular as punched-out in the material of the side plate 40, so that a largely closed contour of the side plate is given. Except for the area of the deflection 45, a continuous side edge 42 of the side plate extends on both sides of the cooler 10 at the edge of the corrugated fins 13.
  • FIGS. 5a and 5b corresponds to the embodiment of FIGS. 5a and 5b , wherein only the recesses 48 has been omitted, as far as they are not formed in the region of the deflection 45.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a radiator ( 10 ), especially for vehicles, radiator comprising upwardly extending headers ( 11 ). Said headers ( 11 ) are fluidically interconnected in the longitudinal direction by means of parallel cooling pipes ( 12 ). Corrugated ribs ( 13 ) are arranged between the cooling pipes ( 12 ), the ridge lines ( 14 ) thereof extending in the direction of the width (B) of the radiator ( 10 ) and lying respectively alternately on both sides of a cooling pipe ( 12 ). The inventive radiator is also provided with a lateral metal plate ( 40 ) which extends parallel to the cooling pipes ( 12 ), on the outside between the headers ( 11 ), the width (b) of said plate corresponding essentially to the width (B) of the corrugated ribs ( 13 ). According to the invention, the material of the at least one lateral metal plate ( 40 ) is weaker in the regions adjacent to the headers ( 11 ).

Description

Die vorliegende Erfindung betrifft einen Kühler, insbesondere einen Kühler wie er in Fahrzeugen Verwendung findet und vorzugsweise in den Kühlkreislauf für eine Brennkraftmaschine integriert ist. Derartige Kühler sind üblicherweise als sogenannte Röhrenkühler ausgebildet, bei denen sich zwischen zwei vorzugsweise vertikal ausgerichteten Sammelrohren in Längsrichtung parallel zueinander verlaufende Kühlrohre erstrecken. Dabei findet ein Fluss von einem Kühlmittel von einem Sammelrohr durch die Kühlrohre hin zum anderen Sammelrohr statt. Im Bereich der Kühlrohre besteht ein Wärmeaustausch mit einem in Querrichtung der Erstreckung, also der Breite des Kühlers verlaufenden Rohrs, strömenden, vorzugsweise gasförmigen Kühlmediums, wie Umgebungsluft.The present invention relates to a radiator, in particular a radiator as used in vehicles and is preferably integrated in the cooling circuit for an internal combustion engine. Such coolers are usually designed as so-called tube radiators, in which extend between two preferably vertically aligned manifolds in the longitudinal direction of mutually parallel cooling tubes. In this case, a flow of a coolant from a manifold through the cooling tubes to the other manifold takes place. In the area of the cooling tubes, there is a heat exchange with a tube extending in the transverse direction of the extension, that is to say the width of the cooler, and flowing, preferably gaseous cooling medium, such as ambient air.

Dabei ist es bekannt, zur Vergrößerung der Wärmeaustauschfläche zwischen den Kühlrohren Wellenrippen anzuordnen. Bei den Wellenrippen handelt es sich insbesondere um ein wellenförmig ausgebildetes schmales Blechband, dessen Kammlinien sich in Richtung der Breite des Kühlers erstrecken und die entlang der Kammlinien alternierend an einem unteren bzw. oberen Kühlrohr befestigt gehalten sind, wobei sie insbesondere durch Löten mit den Kühlrohren verbunden sind.It is known to arrange to increase the heat exchange surface between the cooling tubes corrugated fins. The corrugated ribs are, in particular, a corrugated narrow sheet-metal strip whose ridge lines extend in the direction of the width of the radiator and which are held fastened alternately along the ridge lines to a lower or upper cooling tube, in particular by soldering to the cooling tubes are.

Darüber hinaus ist es bekannt, oberhalb des obersten und unterhalb des untersten Kühlrohrs des Kühlers jeweils auch Wellenrippen vorzusehen. Zum Schutz der Wellenrippen vor Beschädigung und um einen stabilen Abschluss des Kühlers herzustellen, ist es bekannt, auf wenigstens einer der Seiten, die sich parallel zu den Kühlrohren und über die Breite des Kühlers hinweg erstrecken, ein Seitenblech vorzusehen.In addition, it is known to provide above the uppermost and below the lowest cooling tube of the radiator also each corrugated fins. To protect the corrugated ribs from damage and to produce a stable closure of the radiator, it is known to provide a side plate on at least one of the sides extending parallel to the cooling tubes and across the width of the radiator.

Dabei ist es bekannt, dass Seitenbleche den Nachteil aufweisen, dass sie aufgrund eines anderen Wärmeausdehnungsverhaltens und aufgrund der Tatsache, dass sie sich in einem anderen Temperaturbereich als die Kühlrohre befinden, eine unterschiedliche Wärmeausdehnung in Längsrichtung der Kühlrohre gegeben ist. Aufgrund dieser unterschiedlichen Wärmeausdehnung treten insbesondere an den äußeren Kühlrohren Dehnbelastungen auf, die über eine Anzahl von thermischen Lastspielen hinweg zu Undichtigkeiten im Kühler führen können, insbesondere im Wurzelbereich der außenliegenden Kühlrohre.It is known that side plates have the disadvantage that they are due to a different thermal expansion behavior and due to the fact that they are located in a different temperature range than the cooling tubes, a different thermal expansion in the longitudinal direction of the cooling tubes. Due to this difference in thermal expansion, strain loads occur, in particular on the outer cooling tubes, which can lead to leaks in the cooler over a number of thermal load cycles, in particular in the root area of the outer cooling tubes.

Ein Kühler, wie er insbesondere als Kühler für Fahrzeuge dient, weist zwei sich in Hochrichtung erstreckende Sammelrohre auf. Die Sammelrohre sind dabei in Längsrichtung über parallel zueinander verlaufende Kühlrohre fluidisch miteinander verbunden. Zwischen den Kühlrohren sind dabei Wellenrippen angeordnet, deren Kammlinien in Richtung der Breite des Kühlers verlaufen und alternierend beidseitig jeweils an einem Kühlrohr anliegen. Darüber hinaus ist wenigstens ein Seitenblech vorgesehen, welches sich außenseitig zwischen den Sammelrohren parallel zu den Kühlrohren erstreckt und in seiner Breite im Wesentlichen der Breite der Wellenrippen entspricht. Dabei weist das wenigstens eine Seitenblech zu den Sammelrohren benachbarten Bereichen eine Materialschwächung, wie beispielsweise in der EP 0 748 995 A2 gezeigt.A radiator, as it serves in particular as a radiator for vehicles, has two extending in the vertical direction manifolds. The headers are fluidly connected to each other in the longitudinal direction via mutually parallel cooling tubes. Between the cooling tubes shaft ribs are arranged, the ridge lines extend in the direction of the width of the radiator and alternately abut each other on both sides of a cooling tube. In addition, at least one side plate is provided which extends on the outside between the collecting pipes parallel to the cooling tubes and in its width substantially corresponds to the width of the corrugated ribs. In this case, the at least one side plate to the headers adjacent areas a material weakening, such as in the EP 0 748 995 A2 shown.

Durch diese Materialschwächung wird erreicht, dass vom Seitenblech eine Lastübertragung auf die Wellenrippen und das dem Seitenblech benachbarte Kühlrohr eine Kraftübertragung so erfolgt, dass diese frei von Spannungsspitzen aufgrund unterschiedlicher thermischer Ausdehnung ist. Insbesondere ist im Bereich der Seitenbleche eine solche Materialschwächung gegeben, dass die unterschiedliche thermische Ausdehnung durch elastische Verformung aufgefangen werden kann.By this material weakening is achieved that from the side plate a load transfer to the corrugated fins and the side plate adjacent cooling tube power transmission takes place so that it is free of voltage spikes due to different thermal expansion. Especially In the area of the side plates, such a material weakening is given that the different thermal expansion can be absorbed by elastic deformation.

Dabei kann insbesondere der Nachteil ausgeglichen werden, dass aufgrund von Montagemanipulationen und Fertigungstoleranzen ein Befestigen der Wellenrippen am Kühlrohr bzw. beim Befestigen des Seitenblechs auf den Wellenrippen im Bereich der randständigen Wellenrippen, beispielsweise durch Zusammenschieben der Wellenrippen und einen geringfügigen Überschuss an Lötmasse beim Verlöten, ein Verblocken der Wellenrippen entsteht, so dass in dem Bereich, welcher zu den Sammelrohren benachbart ist, eine erhöhte Steifigkeit der Wellenrippen hinsichtlich der Längsausdehnung gegeben ist.In particular, the disadvantage can be compensated that due to Montagemanipulationen and manufacturing tolerances attaching the corrugated fins on the cooling tube or when attaching the side plate on the corrugated ribs in the region of the peripheral corrugated ribs, for example by pushing together the corrugated ribs and a slight excess of solder during soldering, a Flocking of the corrugated fins is formed, so that in the region which is adjacent to the headers, there is an increased rigidity of the corrugated fins with respect to the longitudinal extent.

Dabei kann, die Materialschwächung in einer Reduktion der Breite des Materials des Seitenblechs im zum Sammelrohr benachbarten Bereich bestehen. Hierdurch wird die hohe Flexibilität und geringe Steifigkeit des Seitenteils insbesondere in dem Bereich erzeugt, in dem ansonsten die höchste Lastüberleitung von Seitenblech auf Kühlrohr über die Wellenrippen stattfindet. Dabei entspricht es vorteilhafter Ausgestaltung, wenn die Reduktion der Breite des Materials derart ausgebildet ist, dass das Seitenblech auf wenigstens einer Seite eine durchgehende, lineare Seitenkante in Längsrichtung des Kühlers aufweist. Durch diese Seitenkante wird zum Beispiel ein geradliniger, linearer vorderer oder hinterer Abschluss des Kühlerblechs geschaffen, welcher nicht durch eine Verringerung des Querschnitts in seiner Kontur verändert ist. Diese Maßnahme schafft insbesondere eine definierte Außenkontur des Kühlers beispielsweise in Blickseite.In this case, the weakening of the material may consist of a reduction in the width of the material of the side panel in the region adjacent to the collecting tube. As a result, the high flexibility and low rigidity of the side part is generated in particular in the area in which otherwise the highest load transfer from side plate to cooling tube via the corrugated fins takes place. It corresponds to an advantageous embodiment, when the reduction of the width of the material is formed such that the side plate has on at least one side a continuous, linear side edge in the longitudinal direction of the radiator. By this side edge, for example, a straight, linear front or rear end of the radiator plate is created, which is not changed by a reduction of the cross section in its contour. This measure creates in particular a defined outer contour of the radiator, for example, in view.

Aufgabe der Erfindung ist es, Seitenbleche so auszubilden, dass Beschädigungen des Kühlers zuverlässig vermieden werden.The object of the invention is to form side plates so that damage to the radiator can be reliably avoided.

Erfindungsgemäß ist vorgesehen, das Seitenbleich im Bereich der Materialschwächung aus einer geringen Anzahl, beispielsweise bis zu fünf schmalen Materialfingern, zu bilden. Jeder der Materialfinger ist dabei ein gegenüber der Breite des Seitenstreifens schmaler Materialsteg, der von einem Grundkörper des Seitenblechs in Richtung auf das Sammelrohr abragt bzw. sich bis zum Sammelrohr erstreckt. Insbesondere erstreckt sich der Materialfinger hin zum letzten Wellenkamm einer Wellenrippe. Die Ausbildung von schmalen Materialfingern ermöglicht eine weiche Gestaltung des Seitenblechs im Bereich der Finger. Dabei kann insbesondere vorgesehen sein, dass jeweils ein Finger randständig ausgebildet ist, so dass eine nach außen hin durchlaufende Seitenkante des Seitenblechs geschaffen ist. Die Anzahl der Materialfinger ist entsprechend den Bedürfnissen an Steifigkeit und Flexibilität zu bestimmen.According to the invention, it is provided to form the side bleach in the region of the material weakening from a small number, for example up to five narrow material fingers. Each of the material fingers is a narrow material web, which is narrower than the width of the side strip and protrudes from a base body of the side plate in the direction of the collecting tube or extends as far as the collecting tube. In particular, the material finger extends towards the last wave crest of a wave rib. The formation of narrow material fingers allows a soft design of the side plate in the area of the fingers. In this case, it can be provided in particular that in each case a finger is formed marginally, so that an outwardly continuous side edge of the side plate is created. The number of material fingers must be determined according to the requirements of rigidity and flexibility.

Weiterhin sind sich in Längsrichtung erstreckende Versteifungen vorgesehen die durch eine Überhöhung in der Profilbildung in Hochrichtung bestehen. Durch diese Aussteifung in Hochrichtung werden trägerähnliche Versteifungen geschaffen, welche vor allem die Kraftaufnahme und Lastaufnahme in Hochrichtung des Materialschwächungsbereichs erhöhen. Diese müssen vor allem dem Effekt entgegenwirken, dass aufgrund des Drucks anstehender Kühlflüssigkeit in den Kühlrohren eine Tendenz zur Bombierung der Kühlrohre nach außen besteht. Andererseits muss die Steifigkeit so gewählt sein, dass der thermische Längenausgleich dennoch möglich ist.Furthermore, longitudinally extending stiffeners are provided which consist of an elevation in the profile formation in the vertical direction. By this stiffening in the vertical direction carrier-like stiffeners are created, which mainly increase the power and load absorption in the vertical direction of the material weakening area. These must counteract above all the effect that due to the pressure of existing cooling liquid in the cooling tubes there is a tendency to crown the cooling tubes to the outside. On the other hand, the stiffness must be chosen so that the thermal length compensation is still possible.

Gemäß besonders vorteilhafter Ausgestaltung der Erfindung ist vorgesehen, dass das wenigstens eine Seitenblech ausschließlich an Wellenrippen befestigt, insbesondere mit diesen durch Löten verbunden ist. Das ausschließliche Befestigen des Seitenblechs an den Wellenrippen vermeidet eine Verbindung des Seitenblechs mit den Sammelrohren, so dass in diesem Bereich keine steife Abstützung vom Seitenblech zu den Sammelrohren gegeben ist, die zu Spannungen aufgrund unterschiedlicher thermischer Ausdehnung bezüglich dem benachbarten Kühlrohr führt, welche durch ein Wellenblech übertragen werden. Das Wellenblech ist also gegenüber den Sammelrohren schwimmend auf den Kammlinien der Wellenrippen gelagert. In bevorzugter Ausgestaltung ist dabei vorgesehen, dass zwischen Seitenblech und Sammelrohr ein seitenblechfreier Spalt ausgebildet ist. Das Seitenblech erstreckt sich also nicht unmittelbar hin bis zu den Sammelrohren, sondern ist von diesen um einen Spalt beabstandet. Dieser Spalt dient zum einen als Ausdehnungsraum für das Seitenblech in Längsrichtung und zum anderen wird verhindert, dass Kräfte vom Seitenblech über die letzten Flanken der Wellenrippen in das benachbarte Kühlrohr eingeleitet werden und im Bereich dessen Fußpunkts am Sammelrohr Kräfte eingeleitet werden, welche zu Undichtigkeiten des Kühlers führen könnten. Es entspricht dabei bevorzugter Ausgestaltung, wenn der Spalt eine Spaltbreite aufweist, die eine Anzahl von Perioden der Wellen des Wellenblechs, also über eine gewisse Anzahl von Kammlinien des Wellenblechs hinweg erstreckt. Die Anzahl der Kammlinien liegt dabei vorzugsweise unterhalb von 20 und insbesondere zwischen 5 und 15. Durch diese Maßnahme ist einerseits eine hinreichende Versteifung des Kühlers in Längsrichtung sichergestellt und andererseits ist dennoch zuverlässig vermieden, dass im Bereich der Befestigung der Kühlrohre an den Sammelrohren Kräfte eingeleitet werden, die die Dichtigkeit in diesem Bereich infrage stellen würden.According to a particularly advantageous embodiment of the invention, it is provided that the at least one side plate is fastened exclusively to corrugated ribs, in particular connected to them by soldering. The exclusive fixing of the side plate on the corrugated fins avoids a connection of the side plate with the headers, so that in this area there is no stiff support from the side plate to the headers, which are related to stresses due to different thermal expansion the adjacent cooling tube leads, which are transmitted through a wave plate. The corrugated sheet is so stored against the headers floating on the ridgelines of the corrugated ribs. In a preferred embodiment, it is provided that between side plate and manifold a side plate gap is formed. The side plate does not extend directly to the headers, but is spaced from them by a gap. This gap serves as an expansion space for the side plate in the longitudinal direction and on the other hand prevents forces are introduced from the side plate on the last flanks of the corrugated fins in the adjacent cooling tube and forces are introduced in the region of its base on the manifold, resulting in leaks in the radiator could lead. It corresponds to a preferred embodiment, when the gap has a gap width, which extends a number of periods of the waves of the corrugated sheet, so over a certain number of comb lines of the corrugated sheet away. The number of ridge lines is preferably below 20 and in particular between 5 and 15. By this measure, on the one hand sufficient stiffening of the radiator in the longitudinal direction ensured and on the other hand is still reliably avoided that forces are introduced in the field of attachment of the cooling tubes to the headers that would question the tightness in this area.

Im Übrigen ist die Erfindung nachfolgend auch anhand der in der Zeichnung dargestellten Ausführungsbeispiele näher erläutert; dabei zeigt:

Figur 1
in 3D-Ansicht einen Auszug aus einem Kühler;
Figuren 2a bis 2e
in schematischer Darstellung unterschiedlich gestaltete Seitenbleche;
Figuren 3a, 3b, 5a, 5b, 6a, 6b
jeweils in schematischer Seitenansicht und schematischer Aufsicht unterschiedlich gestaltete Seitenbleche für Kühler in ihrer Anordnung am Kühler;
Figuren 4a, 4b
in schematischer Seitenansicht und schematischer Aufsicht dargestelltes Seitenblech für den erfindungsgemäßen Kühler.
Moreover, the invention is explained below with reference to the embodiments illustrated in the drawings; showing:
FIG. 1
in 3D view an extract from a cooler;
FIGS. 2a to 2e
in a schematic representation differently shaped side panels;
FIGS. 3a, 3b, 5a, 5b, 6a, 6b
in each case in a schematic side view and a schematic plan view of differently designed side panels for radiator in their arrangement on the radiator;
FIGS. 4a, 4b
in a schematic side view and schematic plan illustrated side plate for the radiator according to the invention.

Die Figur 1 zeigt einen Ausschnitt aus einem Kühler 10 in dreidimensionaler Darstellung. Der Kühler wird aus einem Sammelrohr 11 gebildet, welcher sich in Richtung der Hochachse, also der Vertikalen erstreckt. In Längsrichtung zwischen zwei Sammelrohren 11 erstrecken sich Kühlrohre 12, wobei jeweils zwischen zwei Kühlrohren Wellenrippen 13 angeordnet sind, die Kammlinien 14 aufweisen, welche in Richtung der Breite B des Kühlers verlaufen. Dabei sind die Kammlinien 14 der Wellen rippen jeweils in Anlage mit einem oberhalb bzw. unterhalb angeordneten Kühlrohr 12 und mit diesem durch Löten verbunden. Auf der obersten Wellenrippe 13 ist an der Oberseite das Seitenblech 40 befestigt, wobei dieses insbesondere durch Löten mit den Kammlinien der Wellenrippen 13 verbunden ist. Dabei weist das Seitenblech eine Breite b, die im Wesentlichen der Breite B des Kühlers und der Wellenrippen 13 entspricht.The FIG. 1 shows a section of a cooler 10 in three-dimensional representation. The cooler is formed from a collecting tube 11, which extends in the direction of the vertical axis, ie the vertical. In the longitudinal direction between two headers 11 extending cooling tubes 12, wherein between each two cooling tubes corrugated fins 13 are arranged, which have ridge lines 14 which extend in the direction of the width B of the radiator. In this case, the ridge lines 14 of the corrugated ribs are each in contact with a cooling pipe 12 arranged above and below and connected thereto by soldering. On the uppermost rib 13, the side plate 40 is attached to the top, which is in particular connected by soldering with the ridgelines of the corrugated fins 13. In this case, the side plate has a width b, which corresponds substantially to the width B of the radiator and the corrugated fins 13.

Dabei zeigt das Ausführungsbeispiel der Figur 1 eine Ausführungsform, bei der in einem Bereich 49, welcher dem Sammelrohr 11 benachbart ist, das Seitenblech in seiner Steifigkeit dadurch geschwächt ist, dass das Seitenblech lediglich aus zwei Materialfingern 43 besteht, die sich bis hin zum innenliegenden Rand des Sammelrohrs 11, welcher insbesondere als Rohrboden 15 ausgebildet ist, heranreicht. Dabei sind die beiden Materialfinger 43 so angeordnet, dass sie bezüglich der äußeren Seitenkante 42 des Seitenblechs nach innen versetzt sind.The embodiment of the shows FIG. 1 an embodiment in which in a region 49 which is adjacent to the collecting tube 11, the side plate is weakened in its rigidity that the side plate consists only of two material fingers 43, extending to the inner edge of the manifold 11, which in particular as Tube bottom 15 is formed, comes close. In this case, the two material fingers 43 are arranged so that they are offset with respect to the outer side edge 42 of the side plate inwardly.

Die nachfolgenden Figuren 2a bis 6b zeigen dabei in Prinzipskizzen unterschiedliche Ausführungsformen von Seitenblechen wobei jeweils die Figur 2a, 3a, 4a, 5a und 6a in schematischer Darstellung eine Seitenansicht zeigen, während die nachfolgenden Figuren 2b, ... 2e, 3b, ... 6b jeweils entsprechende Aufsichten auf demgemäß gestaltete Seitenbleche zeigen.The following FIGS. 2a to 6b show in schematic diagrams of different embodiments of side plates in each case the FIG. 2a . 3a . 4a . 5a and 6a show a schematic side view, while the following Figures 2b, ... 2e . 3b , ... 6b each corresponding oversight on accordingly designed side panels show.

Die Figur 2a zeigt den Rohrboden 15 eines Sammelrohrs 11 eines Kühlers 10 und ein im Rohrboden gehaltenes Kühlrohr 12, wobei es sich bei dem Kühlrohr 12 um das oberste Kühlrohr handelt. An seiner Oberseite sind die Wellenrippen 13 angeordnet. Gemäß der dargestellten Ausführungsform ist dabei ein Schwächungsbereich 49 dadurch gebildet, dass das auf der Oberseite der Wellenrippen 13 gehaltene Seitenblech 40 sich nicht bis hin zum Rohrboden 15 erstreckt, sondern ein Bereich 49 ausgebildet ist, in dem kein Seitenblech vorgesehen ist. Dabei erstreckt sich der Bereich 49 über mehrere Perioden von Wellen der Wellenrippen 13.The FIG. 2a shows the tube sheet 15 of a collecting tube 11 of a radiator 10 and a cooling tube 12 held in the tube bottom, wherein the cooling tube 12 is the uppermost cooling tube. At its top, the corrugated fins 13 are arranged. According to the illustrated embodiment, a weakening region 49 is formed by that on the upper side The corrugated ribs 13 held side plate 40 does not extend to the tube sheet 15, but a portion 49 is formed in which no side plate is provided. In this case, the region 49 extends over several periods of waves of the corrugated fins 13.

Die Figur 2b zeigt in Aufsicht die Ausführungsform der Figur 2a. Das Seitenblech 40 erstreckt sich nur bis hin zu einem Bereich 49, der sich zwischen dem Seitenblech 40 und dem Rohrboden 15 des Sammelrohrs 11 erstreckt. Dabei sind in der Aufsicht im Bereich 49 mehrere Kammlinien 14 der Wellenrippen 13 ersichtlich, welche nicht durch das Seitenblech 40 abgedeckt sind. Das Seitenblech ist in den Ausführungsformen gemäß der Figur 2 jeweils ausschließlich durch Verlöten mit anliegenden Kammlinien 14 der Wellenrippen 13 verbunden, so wie auch die Wellenrippen 13 mit dem darunter liegenden Kühlrohr 12 durch Verlöten in den unteren Kammlinien 14 verbunden sind.The FIG. 2b shows in plan the embodiment of the FIG. 2a , The side plate 40 extends only to a region 49 which extends between the side plate 40 and the tube bottom 15 of the collecting tube 11. In this case, a plurality of ridge lines 14 of the corrugated fins 13, which are not covered by the side panel 40, can be seen in the plan view in region 49. The side plate is in the embodiments according to the FIG. 2 each connected only by soldering with adjacent ridge lines 14 of the corrugated fins 13, as well as the corrugated fins 13 are connected to the underlying cooling tube 12 by soldering in the lower ridge lines 14.

Die Ausführungsformen gemäß den Figuren 2c bis 2e zeigen dabei jeweils entsprechende Ausgestaltungen, die sich lediglich in der Gestaltung des Seitenblechs 40 von der Ausführungsform gemäß den Figuren 2a und 2b unterscheiden. Dabei ist das Seitenblech gemäß den Figuren 2c bis 2e jeweils so gestaltet, dass es sich nahezu bis hin zum Rohrboden 15 und damit zum Sammelrohr 11 erstreckt und insgesamt höchstens eine geringe Anzahl, beispielsweise ein oder zwei Kammlinien 14 der Wellenrippen nicht mit dem Seitenblech 40 in Verbindung stehen. Allen drei Ausführungsformen ist es gemeinsam, dass in dem Bereich 49 jeweils eine Verjüngung des Seitenblechs in seiner Breite b stattfindet. Dabei läuft das Seitenblech 40 in der Ausführungsform gemäß der Figur 2c spitz zu, wobei die Spitze in der Mitte der Breite B des Kühlers 10 ausgebildet ist, wobei in der Figur 2d die Spitze des Seitenblechs 40 im Bereich einer Seitenkante 42 liegt, so dass die Seitenkante 42 wenigstens auf einer Seite des Kühlers wenigstens bis nahezu an den Rohrboden 15 sich über die gesamte Länge des Kühlers hinweg erstreckt. Die Figur 2e zeigt dabei eine Ausgestaltung, wobei die Breite b des Seitenblechs beidseitig kontinuierlich verjüngt ist, je näher der Schwächungsbereich 49 am Rohrboden 15 ist. Es findet nahezu ein Übergang zu einem fingerförmigen Abschnitt des Seitenblechs 40 statt. Durch das Verjüngen des Seitenblechs 40 wird in diesem Bereich die Übertragung von Kräften auf die Wellenrippen 13 auf einen größeren Bereich verteilt. Durch die Wellenrippen 13 im Verjüngungsbereich findet die Krafteinleitung in einem größeren Bereich des Kühlrohrs 12 statt, so dass lokal keine Spitzenlasten auftreten, die insbesondere im Wurzelbereich des Kühlrohrs 12 am Rohrboden 15 Spannungsbereiche zur Folge haben können.The embodiments according to the FIGS. 2c to 2e In each case show corresponding embodiments, which only in the design of the side plate 40 of the embodiment according to the FIGS. 2a and 2b differ. The side plate is in accordance with the FIGS. 2c to 2e each designed so that it extends almost to the tube plate 15 and thus to the manifold 11 and a total of at most a small number, for example, one or two ridge lines 14 of the corrugated fins are not in communication with the side plate 40. It is common to all three embodiments that in the region 49, in each case, a taper of the side plate takes place in its width b. In this case, the side plate 40 runs in the embodiment according to the Figure 2c pointed, wherein the tip is formed in the middle of the width B of the radiator 10, wherein in the Figure 2d the tip of the side plate 40 is located in the region of a side edge 42, so that the side edge 42 at least on one side of the radiator extends at least almost to the tube plate 15 over the entire length of the radiator. The FIG. 2e shows an embodiment, wherein the width b of the side plate is continuously tapered on both sides, the closer the weakening region 49 on the tube sheet 15. There is almost a transition to a finger-shaped portion of the side plate 40 instead. By rejuvenating of the side plate 40, the transmission of forces to the corrugated fins 13 is distributed over a larger area in this area. As a result of the corrugated ribs 13 in the tapering region, the introduction of force takes place in a larger region of the cooling tube 12 so that no peak loads occur locally which can result in stress regions in the root region of the cooling tube 12 on the tubesheet 15.

Auch die Figuren 3a und 3b sowie die Figuren 4a und 4b zeigen jeweils in schematisch geschnittener Seitenansicht bzw. Aufsicht eine Ausführungsform eines Seitenblechs mit einem Schwächungsbereich in Nachbarschaft zu dem Sammelrohr 11. Wiederum ist im Grundaufbau das Sammelrohr 11 mit seinem Rohrboden 15 zu sehen. In den Rohrboden eingesetzt und mit diesem durch Löten dicht verbunden ist das Kühlrohr 12, wobei wiederum nur ein Kühlrohr dargestellt ist. Auf dem Kühlrohr 12 sind die Wellenrippen 13 angeordnet, wobei die unteren Kammlinien 14 durch Löten mit Kühlrohr 12 verbunden sind. Im Bereich der oberen Kammlinien 14 ist das Seitenteil 40 jeweils mit den Wellenrippen 13 verbunden, wobei das Seitenteil 40 jeweils nur knapp ist an den Rohrboden 15 heranreicht und zu diesem um einen schmalen Spalt 47 beabstandet ist.Also the FIGS. 3a and 3b as well as the FIGS. 4a and 4b show in each case in a schematically sectioned side view or top view of an embodiment of a side plate with a weakened area in the vicinity of the manifold 11. Again, in the basic structure of the manifold 11 can be seen with its tube bottom 15. Inserted into the tubesheet and tightly connected thereto by soldering is the cooling tube 12, again showing only one cooling tube. On the cooling tube 12, the corrugated fins 13 are arranged, wherein the lower ridge lines 14 are connected by soldering with cooling tube 12. In the region of the upper ridgelines 14, the side part 40 is connected in each case to the corrugated ribs 13, wherein the side part 40 in each case only just reaches the tube sheet 15 and is spaced therefrom by a narrow gap 47.

Den beiden Ausführungsformen gemäß den Figuren 3 und 4 ist gemeinsam, dass in einem Schwächungsbereich 49 des Seitenblechs 40 eine Versteifung 44 ausgebildet ist, welche sich in Längsrichtung des Seitenblechs 40 erstreckt, jedoch in Hochrichtung über den restlichen Verlauf des Seitenblechs 40 erhaben ist.The two embodiments according to the FIGS. 3 and 4 is common that in a weakening region 49 of the side plate 40, a stiffener 44 is formed, which extends in the longitudinal direction of the side plate 40, but is raised in the vertical direction over the remaining course of the side plate 40.

Dabei zeigen die Figuren 3a und 3b ein Ausführungsbeispiel, wobei benachbart zu dem Schwächungsbereich 49 das Seitenblech 40 eine Ausbiegung 45 aufweist, welche eine in Richtung der Breite b des Seitenblechs verlaufende Kammlinie 46 aufweist. Diese Ausbiegung 45 sorgt für eine hohe Flexibilität des Schwächungsbereichs 49, welcher insbesondere durch ein Verbiegen des Seitenblechs im Bereich der Ausbiegung 45 und eine hohe Dehnbarkeit in Längsrichtung des Seitenblechs 40 gegeben ist.The show FIGS. 3a and 3b an embodiment, wherein adjacent to the weakening region 49, the side plate 40 has a bend 45, which has a combing line 46 extending in the direction of the width b of the side plate. This deflection 45 ensures a high degree of flexibility of the weakening region 49, which is given in particular by bending the side plate in the region of the deflection 45 and a high extensibility in the longitudinal direction of the side plate 40.

Die erfindungsgemäße Ausführungsform gemäß den Figuren 4a und 4b zeigt - wie Figur 1 - eine Gestaltung, bei der der Schwächungsbereich 49 durch Finger 43 gebildet ist, wobei sich die Versteifungen 44 über die Finger hinweg bis in den ungeschwächten Bereich des Seitenblechs 40 hineinerstecken. Die Finger 43 sind somit gegen ein Verbiegen in Hochrichtung, nämlich der Vertikalrichtung durch die Versteifungen 44 geschützt. Lediglich dadurch, dass sich im Bereich der Finger 43 das Seitenblech 40 nicht über die gesamte Breite B des Kühlers erstreckt, ist sichergestellt, dass keine zu große Versteifung im Fußbereich der Kühlrohre 12 am Rohrboden 15 gegeben ist.The embodiment of the invention according to the FIGS. 4a and 4b shows - how FIG. 1 - A design in which the weakening region 49 is formed by fingers 43, wherein the stiffeners 44 hineinerstecken over the fingers away into the unattenuated region of the side plate 40. The fingers 43 are thus protected against bending in the vertical direction, namely the vertical direction by the stiffeners 44. Only because the side plate 40 does not extend over the entire width B of the cooler in the region of the fingers 43 ensures that there is no excessive stiffening in the foot region of the cooling tubes 12 on the tubesheet 15.

Die Figuren 5a und 5b zeigen eine Ausführungsform, bei der als Schwächung Aussparungen 48 im Material des Seitenblechs 40 gegeben sind. Auch hierbei ist im Übergangsbereich zwischen dem Schwächungsbereich 49 und dem restlichen Abschnitt des Seitenblechs 40 eine Ausbiegung 45 ausgebildet, wobei im Bereich der Ausbiegung 45 auch eine Schwächung des Seitenblechs 40 dadurch gegeben ist, dass sich in diesem Bereich das Seitenblech 40 nicht über die vollständige Breite B des Kühlers 10 erstreckt. Dabei sind die Aussparungen 48 insbesondere als Ausstanzungen im Material des Seitenblechs 40 ausgebildet, so dass eine weitgehend geschlossene Kontur des Seitenblechs gegeben ist. Bis auf den Bereich der Ausbiegung 45 erstreckt sich eine kontinuierlich durchgehende Seitenkante 42 des Seitenblechs auf beiden Seiten des Kühlers 10 am Rand der Wellenrippen 13.The FIGS. 5a and 5b show an embodiment in which recesses 48 are given in the material of the side plate 40 as a weakening. Here, too, a deflection 45 is formed in the transition region between the weakening region 49 and the remaining portion of the side panel 40, wherein in the region of the deflection 45 and a weakening of the side plate 40 is given by the fact that in this area the side plate 40 is not over the full width B of the radiator 10 extends. The recesses 48 are formed in particular as punched-out in the material of the side plate 40, so that a largely closed contour of the side plate is given. Except for the area of the deflection 45, a continuous side edge 42 of the side plate extends on both sides of the cooler 10 at the edge of the corrugated fins 13.

Die Ausführungsform gemäß den Figuren 6a und 6b entspricht dabei der Ausgestaltung der Figuren 5a und 5b, wobei lediglich auf die Aussparungen 48 verzichtet wurde, soweit diese nicht im Bereich der Ausbiegung 45 ausgebildet sind.The embodiment according to the Figures 6a and 6b corresponds to the embodiment of FIGS. 5a and 5b , wherein only the recesses 48 has been omitted, as far as they are not formed in the region of the deflection 45.

Claims (4)

  1. Radiator (10), in particular a radiator (10) for vehicles, with cooling tubes (12) that extend parallel to one another in the longitudinal direction between two vertically orientated collectors such as headers (11), and with corrugated fins (13) arranged between the cooling tubes (12), whose ridge lines (14) run in the direction of the width of the radiator (10), and with at least one sideplate (40) that extends on the outside between the headers (11) parallel to the cooling tubes (12) and whose width (b) corresponds essentially to the width (B) of the corrugated fins (13), the material of the said at least one sideplate (40) being weakened in areas (49) adjacent to the headers (11), characterised in that in the area of the weakened material the sideplate (40) consists of a small number of narrow material fingers (43) and in the area of the weakened material stiffeners (44) are provided, which extend in the longitudinal direction and are formed by profiling in the vertical direction, the said stiffeners extending beyond the said fingers into the area that is not weakened.
  2. Radiator (10) according to Claim 1, characterised in that the at least one sideplate (40) is attached exclusively to the corrugated fins (13), in particular being connected to them by soldering and preferably by brazing.
  3. Radiator (10) according to either of the preceding claims, characterised in that the also sideplate (40) has a gap (47) between it and the header (11).
  4. Radiator (10) according to Claim 3, characterised in that the gap (47) has a width which extends over a number of corrugation peaks of the corrugated fins (13), in particular over less than 20 but preferably more than approximately 5 to 15 corrugated fins.
EP05768706A 2004-07-23 2005-07-25 Radiator, especially radiator for vehicles Not-in-force EP1774242B1 (en)

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DE102004036019A DE102004036019A1 (en) 2004-07-23 2004-07-23 Radiator, in particular radiator for vehicles
PCT/EP2005/008070 WO2006010582A1 (en) 2004-07-23 2005-07-25 Radiator, especially radiator for vehicles

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EP1774242A1 EP1774242A1 (en) 2007-04-18
EP1774242B1 true EP1774242B1 (en) 2009-02-25

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EP (1) EP1774242B1 (en)
AT (1) ATE423954T1 (en)
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US20050224219A1 (en) * 2002-11-25 2005-10-13 Behr Gmbh &Co. Kg Heat exchanger unit, in particular for a motor vehicle and method for producing said unit
DE10333150A1 (en) * 2003-07-22 2005-02-17 Modine Manufacturing Co., Racine Heat exchangers for motor vehicles
JP4604759B2 (en) * 2005-02-22 2011-01-05 株式会社デンソー Heat exchanger
JP2008020085A (en) * 2006-07-10 2008-01-31 Denso Corp Heat exchanger

Also Published As

Publication number Publication date
EP1774242A1 (en) 2007-04-18
ATE423954T1 (en) 2009-03-15
DE102004036019A1 (en) 2006-02-16
WO2006010582A1 (en) 2006-02-02
US20080000437A1 (en) 2008-01-03
DE502005006705D1 (en) 2009-04-09

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