EP1923654B1 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- EP1923654B1 EP1923654B1 EP20060023987 EP06023987A EP1923654B1 EP 1923654 B1 EP1923654 B1 EP 1923654B1 EP 20060023987 EP20060023987 EP 20060023987 EP 06023987 A EP06023987 A EP 06023987A EP 1923654 B1 EP1923654 B1 EP 1923654B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- parts
- exchanger according
- flat tubes
- shell
- 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 - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- 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
- F28D1/053—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 the conduits being straight
- F28D1/0535—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 the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
-
- 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
-
- 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
- F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
-
- 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
- F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
- F28F9/0217—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions the partitions being separate elements attached to header boxes
-
- 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
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
-
- 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
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0263—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry or cross-section of header box
-
- 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
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
- F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0082—Charged air coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0091—Radiators
- F28D2021/0094—Radiators for recooling the engine coolant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/08—Reinforcing means for header boxes
Definitions
- the invention relates to a heat exchanger as a soldering or welded construction, which has narrow and broad sides having flat tubes and corrugated ribs and collecting boxes, and in at least one of the collecting boxes contains a partition or the like to form the internal flow characteristic of the heat exchanger accordingly.
- This heat exchanger is from the EP 864 840B1 and known from other publications.
- the from the EP 864 840 B1 Known heat exchanger has no tube plates but expanded tube ends, which are joined together in a block. The end edge of each header encloses flush the block of pipe ends.
- the known heat exchanger has the advantage that a little less material, for example. Aluminum sheet, could be used because - as mentioned - tube plates are not present.
- the operating weight of the heat exchanger is thereby reduced only slightly, because the expansion of the pipe ends requires comparatively larger wall thicknesses of the flat tubes, whereby the mentioned savings are partially reversed.
- a not insignificant overhead is generated because of the implementation of the forming process at each pipe end.
- the prior art design poses soldering problems that result in excessive rejects or rework rates unless very careful pre-treatments are performed for the soldering process.
- a dividing wall was used in its transverse or depth direction, which permits a U-shaped flow through it, which is desired for some applications.
- the object of the invention is to provide a heat exchanger which allows the use of flat tubes with thinner wall thicknesses, or which can at least alleviate at least one of the above-mentioned disadvantages.
- the solution according to the invention results in the heat exchanger in that it is equipped with the features of claim 1. Because the headers are provided with spaced-apart projections which engage in the ends of the flat tubes in the region of the narrow sides, tubes with thinner wall thicknesses can be used since an expansion of the tube ends does not have to be performed.
- a partition wall extends either transversely or longitudinally between at least two rows of projections, the terms "transverse” and "longitudinal”, of course, may also include “oblique”.
- the advantage was achieved that the soldering critical joints are easily accessible, so they can be aftertreated if necessary. In a second soldering operation leaks can be eliminated.
- the heat exchanger according to the invention has a pronounced advantageous relationship between its entire cross-sectional area to the effective heat exchange surface. It can therefore be used well the available space. It is envisaged that the ends of the flat tubes stuck in openings of tube holders, the flat tubes on both sides of the tube holder have a projection. Unlike the openings in known tube sheets, the flat tube ends are not enclosed in the openings of the tube holder around the entire circumference of the opening edge.
- Each collection box may consist of two shell-like parts, which are connected to each other in a central longitudinal plane of the heat exchanger or in a plane parallel thereto. In this case, frontal openings may be present or not present.
- the at least one partition can be inserted between the two shell-like parts.
- the collection box can also be a part which has only two folds and is open to the end faces of the heat exchanger.
- the collection box could also be a part that has been pulled like a bowl, so has no frontal openings.
- the one shell-like part is formed identical to the other shell-like part, wherein the connection of the two parts is arranged approximately in the central longitudinal plane of the heat exchanger. That on one of the shell-like parts a neck or the like could be formed and on the other part does not remain unconsidered here. It can also be provided that the one shell-like part is formed shell-like and the other shell-like part is designed approximately planar, wherein the connection of the two parts lies in a plane parallel to the central longitudinal plane. In this connection, it should be noted that the dividing wall which is inserted between the shell-like parts can either be flat or in turn can also be formed with one or more folds.
- connection of the partition with the pipe holder is not in the same plane as the connection of the partition with the shell-like parts.
- essentially flat parts are also shell-like parts.
- the central longitudinal plane or a plane parallel to it must not really be flat. The term merely indicates an orientation extending transversely through the broad sides of the flat tubes.
- the connection of the parts could, for example, be made along a corrugated configuration of the connecting edges of the parts It is envisaged that the shell-like parts have suitable means by which they are held together in a soldering or welding manner, whereby the partition is also provisionally held.
- the means may be formed as arranged on the edge of the parts tabs and notches or the like, which engage in the assembly of the parts together
- the means may in contrast be designed as formed on at least one of the parts, inwardly directed deformations, which are designed so that the parts can be connected with the interposition of the partition, for example, put together in the sense of a pre-fixation.
- the partitions are supported on the surface of the tube holder. They can also be equipped with projections which engage in the flat tubes.
- the partition wall can also be inserted into slots in the edge of the tube holder.
- the Fig. 1 shows a perspective view of a portion of the heat exchanger in a first embodiment.
- the Fig. 2 shows this view in exploded view.
- the Fig. 3 shows a cross section thereof.
- the Fig. 4 shows a perspective view of a portion of the heat exchanger in a second embodiment.
- the Fig. 5 and 6 show details of the second embodiment.
- heat exchanger In the heat exchanger, which is shown in the figures, it should be a cooled by means of cooling air charge air cooler for automotive applications, without wanting to exclude other heat exchangers and their applications somehow. On the contrary, other heat exchangers and their applications are expressly provided, but not shown in the figures. It may also be, for example, a coolant radiator for automotive applications, where the need to form certain flow characteristics achieved by means of the partition (s) may occur more frequently in practice than in intercoolers. Below is therefore often spoken of radiator, which should be meant the heat exchanger in the broadest sense. Also, such heat exchanger, which are designed for different flowing through the flat tubes 1 media.
- the radiator at the collecting tank 3 has an inlet or outlet opening 35 for charge air or cooling fluid to be cooled, for example, and one or more inlet or outlet openings 35 can also be located at the other not shown collecting box 3 .
- the cooling air flows in the sense of the block arrow through the corrugated fins 2, which are arranged between the broad sides 12 of the flat tubes 1 . It is spoken of inlet or outlet openings 35 , because with the help of one or more partitions 10 in one or both header boxes 3 and depending on whether the opening 35, an inlet or outlet is very different internal flow patterns of the radiator set, such as they are desirable for concrete applications.
- the flat tubes 1 are not specified. However, it should preferably be flat tubes 1 , which have separate inner flow channels 8 , so-called multi-chamber tubes, the chambers by means of an inner insert in the flat tube or with the help of solid partitions in the flat tube, such as those found in extruded flat tubes, can be trained. This was in the Fig. 6 indicated in only two of the numerous flat tube ends. Preferably, it should also be just a series of flat tubes 1 , regardless of the depth of the cooling network formed from flat tubes 1 and 2 ribs.
- the assembly of the cooler shown in the figures can be carried out, for example, as follows.
- the flat tubes 1 are alternately with the corrugated fins 2 ( fig4 ) assembled into a stack.
- pipe holder 4 are attached to both ends of the flat tubes 1 .
- the pipe holder 4 have openings 40 that extend into the edge 41 of the tube holder 4, whereby the tube holder 4 differ, inter alia, of the usual tube plates.
- the openings 40 may, if necessary and in a known manner, be provided with a collar-like passage pointing towards the corrugated fins 2 in order to improve the soldering with the flat tube ends.
- the flat tube ends do not have to protrude inwards to the collection box 3 out. (not clearly visible)
- the attachment of the tube holder 4 can be carried out so that the tube holder 4 are pushed transversely to their longitudinal direction towards the ends of the flat tubes.
- the flat tubes 1 have a dimensionally minor but functionally important supernatant 5 on the two longitudinal edges 41 of the tube holder 4.
- the collecting boxes 3 are attached to the partitions 10 to the tube holders 4 at both opposite ends of the flat tubes 1 .
- the collecting boxes 3 consist according to the embodiment of the Fig. 1-3 of two shell-like parts 31 and 32. Both shell-like parts 31, 32 have been formed with an approximately identical shell shape.
- an approximately flat part with a shell-like part could be used to form the header box 3 .
- the two shell-like parts 31, 32 forming the collection box 3 are equipped with projections 30 arranged at intervals, which engage in the ends of the flat tubes 1 in the region of the narrow sides 11 .
- the distances of the projections 30 correspond exactly to the distances of the flat tubes 1, so that the collecting boxes 3 can be pushed in the longitudinal direction of the flat tubes 1 on the ends thereof, each projection 30 engages in a flat tube end, specifically in the respective above-mentioned supernatant .
- the mentioned projections 30 are present in two rows of projections 30 , which have been marked A and B. Between the two cup-like parts 31, 32 is a partition 10 having a longitudinal partition is in this embodiment the tenth As a suitable method of choice for fixing the longitudinal partition wall 10 prior to soldering of the radiator, also the partition 10 arranged in spaced projections 15 was provided. ( Fig.2 and 3 ) These projections 15 are intended to be inserted into the flat tubes 1 , and that - in the embodiment - approximately in the middle between the two narrow sides 11 of the flat tubes, but otherwise not necessarily in the middle, but where the desired position the partition 10 should be. In this context, it should again be noted that the flat tubes 1 in the longitudinal direction extending flow channels 8 (FIG. Fig.
- the projections 15 of the partition wall 10 can effect an equal or opposite flow in selected areas of the flat tube cross sections.
- the particular Fig. 2 and 6 it has formed the projections 30 on the collecting box 3 with a corresponding slightly conical shape, so that the same hand, on the one hand easier to slide in the flat tube ends and on the other hand but there tight fit, so that good soldering results can be achieved.
- the inventor has even made the edges of the projections 30 quite sharp-edged, because it was found that existing length tolerances of the flat tubes 1 can compensate well by the sharp edges of the projections 30 cut into the tube wall of the slightly longer flat tubes 1 , resulting in the mentioned compensation of the tolerances leads.
- Two opposing slots 42 have been provided at the edge 41 of the tube holder 4 into which the partition wall 10 can be inserted.
- the slots 42 and consequently also the position of the transverse dividing wall 10 are preferably located between two flat tubes 1.
- the arrangement of the same in the region of a flat tube cross section is not fundamentally excluded.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Die Erfindung betrifft einen Wärmeübertrager als Löt - oder Schweißkonstruktion, der Schmal - und Breitseiten aufweisende Flachrohre und Wellrippen sowie Sammelkästen besitzt, sowie in wenigstens einem der Sammelkästen eine Trennwand oder dergleichen enthält, um die innere Durchströmungscharakteristik des Wärmeübertragers entsprechend auszubilden.The invention relates to a heat exchanger as a soldering or welded construction, which has narrow and broad sides having flat tubes and corrugated ribs and collecting boxes, and in at least one of the collecting boxes contains a partition or the like to form the internal flow characteristic of the heat exchanger accordingly.
Dieser Wärmeübertrager ist aus dem
Die Aufgabe der Erfindung besteht in der Bereitstellung eines Wärmeübertragers, der den Einsatz von Flachrohren mit dünneren Wanddicken gestattet, bzw. der wenigstens einen der oben erwähnten Nachteile zumindest abschwächen kann.
Die erfindungsgemäße Lösung ergibt sich bei dem Wärmeübertrager dadurch, dass er mit den Merkmalen des Anspruchs 1 ausgestattet wird.
Weil die Sammelkästen mit in Abständen angeordneten Vorsprüngen ausgestattet sind, die im Bereich der Schmalseiten in die Enden der Flachrohre eingreifen, können Rohre mit dünneren Wanddicken eingesetzt werden, da eine Aufweitung der Rohrenden nicht vorgenommen werden muss.
Eine Trennwand erstreckt sich entweder quer oder längs zwischen wenigstens zwei Reihen von Vorsprüngen, wobei die Begriffe "quer" bzw. "längs" selbstverständlich auch "schräg" umfassen können. Ferner wurde der Vorteil erzielt, dass die löttechnisch kritischen Verbindungsstellen gut zugänglich sind, weshalb sie im Bedarfsfall nachbehandelt werden können. In einer zweiten Lötoperation können Leckagen beseitigt werden. Es wurde allerdings in zahlreichen Versuchen auch festgestellt, dass die Lötergebnisse vergleichsweise hervorragend sind, sodass der Umfang für Nachbehandlungen sehr gering ausfällt. In funktioneller Hinsicht weist der erfindungsgemäße Wärmeübertrager ein ausgesprochen vorteilhaftes Verhältnis zwischen seiner gesamten Querschnittsfläche zur effektiven Wärmetauschfläche auf. Es kann deshalb der zur Verfügung stehende Bauraum gut ausgenutzt werden.
Es ist vorgesehen, dass die Enden der Flachrohre in Öffnungen von Rohrhaltern stecken, wobei die Flachrohre beidseitig der Rohrhalter einen Überstand aufweisen. Im Unterschied zu den Öffnungen in bekannten Rohrböden, werden die Flachrohrenden in den Öffnungen der Rohrhalter nicht um den gesamten Umfang vom Öffnungsrand eingefasst.
Dabei ist es besonders von Vorteil, dass die Sammelkästen an den Rändern der Rohrhalter anliegen, wobei die Vorsprünge im Bereich der Überstände in die Enden der Flachrohre eingreifen, wobei sie innen in den Schmalseiten der Flachrohre anliegen.
Jeder Sammelkasten kann aus zwei schalenartigen Teilen bestehen, die in einer Mittellängsebene des Wärmetauschers oder in einer dazu parallelen Ebene miteinander verbunden sind. Dabei können stirnseitige Öffnungen vorhanden sein oder nicht vorhanden sein. Die wenigstens eine Trennwand kann zwischen den beiden schalenartigen Teilen eingefügt werden.
Der Sammelkasten kann aber auch ein Teil sein, welches lediglich zwei Abkantungen aufweist und zu den Stirnseiten des Wärmeübertragers hin offen ist. Der Sammelkasten könnte ferner aber auch ein Teil sein, das wie ein Napf gezogen worden ist, also keine stirnseitigen Öffnungen besitzt.
Es ist möglich, dass das eine schalenartige Teil identisch mit dem anderen schalenartigen Teil ausgebildet wird, wobei die Verbindung der zwei Teile etwa in der Mittellängsebene des Wärmeübertragers angeordnet ist. Dass an einem der schalenartigen Teile ein Stutzen oder dergleichen ausgebildet sein könnte und an dem anderen Teil nicht bleibt hier unberücksichtigt.
Es kann auch vorgesehen sein, dass das eine schalenartige Teil schalenartig ausgebildet ist und das andere schalenartige Teil etwa eben gestaltet ist, wobei die Verbindung der zwei Teile in einer zur Mittellängsebene parallelen Ebene liegt. In diesem Zusammenhang sei gesagt, dass die Trennwand, die zwischen den schalenartigen Teilen eingefügt wird, entweder eben sein kann oder ihrerseits ebenfalls mit einer oder mehreren Abkantungen ausgebildet werden kann. Damit wird erreicht, dass die Verbindung der Trennwand mit dem Rohrhalter nicht in derselben Ebene liegt wie die Verbindung der Trennwand mit den schalenartigen Teilen. Im Sinne des vorliegenden Vorschlags sind also im Wesentlichen ebene Teile auch schalenartige Teile. Im Sinne des Vorschlags muss die Mittellängsebene oder eine dazu parallele Ebene nicht wirklich eben sein. Der Begriff zeigt lediglich eine quer durch die Breitseiten der Flachrohre sich erstreckende Orientierung an. Die Verbindung der Teile könnte zum Beispiel entlang einer gewellten Ausbildung der Verbindungsränder der Teile vorgenommen werden
Es ist vorgesehen, dass die schalenartigen Teile geeignete Mittel aufweisen, mit denen sie löt - oder schweißgerecht zusammengehalten werden, wobei auch die Trennwand provisorisch gehalten wird. Die Mittel können als am Rand der Teile angeordnete Laschen und Kerben oder dergleichen ausgebildet sind, die beim Zusammenfügen der Teile ineinander greifen
Die Mittel können demgegenüber als an wenigstens einem der Teile ausgebildete, nach innen gerichtete Umformungen gestaltet sein, die so ausgeführt sind, dass sich die Teile unter Zwischenfügung der Trennwand verbinden lassen, beispielsweise im Sinne eine Vorfixierung zusammen stecken lassen. Die Trennwände stützen sich auf der Oberfläche der Rohrhalter ab. Sie können ebenfalls mit Vorsprüngen ausgestattet werden, die in die Flachrohre eingreifen. Die Trennwand kann auch in Schlitze im Rand der Rohrhalter eingesteckt werden.
Weitere Merkmale gehen aus den beigefügten Patentansprüchen hervor.This heat exchanger is from the
The object of the invention is to provide a heat exchanger which allows the use of flat tubes with thinner wall thicknesses, or which can at least alleviate at least one of the above-mentioned disadvantages.
The solution according to the invention results in the heat exchanger in that it is equipped with the features of
Because the headers are provided with spaced-apart projections which engage in the ends of the flat tubes in the region of the narrow sides, tubes with thinner wall thicknesses can be used since an expansion of the tube ends does not have to be performed.
A partition wall extends either transversely or longitudinally between at least two rows of projections, the terms "transverse" and "longitudinal", of course, may also include "oblique". Furthermore, the advantage was achieved that the soldering critical joints are easily accessible, so they can be aftertreated if necessary. In a second soldering operation leaks can be eliminated. However, it was also found in numerous experiments that the soldering results are comparatively excellent, so that the scope for post-treatment is very low. Functionally, the heat exchanger according to the invention has a pronounced advantageous relationship between its entire cross-sectional area to the effective heat exchange surface. It can therefore be used well the available space.
It is envisaged that the ends of the flat tubes stuck in openings of tube holders, the flat tubes on both sides of the tube holder have a projection. Unlike the openings in known tube sheets, the flat tube ends are not enclosed in the openings of the tube holder around the entire circumference of the opening edge.
It is particularly advantageous that the collecting tanks bear against the edges of the tube holder, wherein the projections engage in the region of the projections in the ends of the flat tubes, wherein they rest inside on the narrow sides of the flat tubes.
Each collection box may consist of two shell-like parts, which are connected to each other in a central longitudinal plane of the heat exchanger or in a plane parallel thereto. In this case, frontal openings may be present or not present. The at least one partition can be inserted between the two shell-like parts.
But the collection box can also be a part which has only two folds and is open to the end faces of the heat exchanger. The collection box could also be a part that has been pulled like a bowl, so has no frontal openings.
It is possible that the one shell-like part is formed identical to the other shell-like part, wherein the connection of the two parts is arranged approximately in the central longitudinal plane of the heat exchanger. That on one of the shell-like parts a neck or the like could be formed and on the other part does not remain unconsidered here.
It can also be provided that the one shell-like part is formed shell-like and the other shell-like part is designed approximately planar, wherein the connection of the two parts lies in a plane parallel to the central longitudinal plane. In this connection, it should be noted that the dividing wall which is inserted between the shell-like parts can either be flat or in turn can also be formed with one or more folds. This ensures that the connection of the partition with the pipe holder is not in the same plane as the connection of the partition with the shell-like parts. For the purposes of the present proposal, essentially flat parts are also shell-like parts. For the purposes of the proposal, the central longitudinal plane or a plane parallel to it must not really be flat. The term merely indicates an orientation extending transversely through the broad sides of the flat tubes. The connection of the parts could, for example, be made along a corrugated configuration of the connecting edges of the parts
It is envisaged that the shell-like parts have suitable means by which they are held together in a soldering or welding manner, whereby the partition is also provisionally held. The means may be formed as arranged on the edge of the parts tabs and notches or the like, which engage in the assembly of the parts together
The means may in contrast be designed as formed on at least one of the parts, inwardly directed deformations, which are designed so that the parts can be connected with the interposition of the partition, for example, put together in the sense of a pre-fixation. The partitions are supported on the surface of the tube holder. They can also be equipped with projections which engage in the flat tubes. The partition wall can also be inserted into slots in the edge of the tube holder.
Further features will become apparent from the appended claims.
Die Erfindung wird im Anschluss in einigen bevorzugten Ausführungsbeispielen beschrieben, wozu auf die beiliegenden Zeichnungen Bezug genommen wird. Die Beschreibung kann weitere Merkmale und Vorteile enthalten, die bisher noch nicht erwähnt wurden.
Die
The
Bei dem Wärmeübertrager, der in den Figuren dargestellt ist, soll es sich um einen mittels Kühlluft gekühlten Ladeluftkühler für Kraftfahrzeuganwendungen handeln, ohne damit andere Wärmeübertrager und deren Anwendungen irgendwie ausschließen zu wollen. Ganz im Gegenteil, andere Wärmeübertrager und deren Anwendungen sind ausdrücklich vorgesehen jedoch in den Figuren nicht gezeigt worden. Es kann sich beispielsweise auch um einen Kühlflüssigkeitskühler für Kraftfahrzeuganwendungen handeln, bei dem die Notwendigkeit zur Ausbildung bestimmter Durchströmungscharakteristiken, die mittels der/den Trennwand/Trennwänden erreicht werden, möglicherweise in der Praxis häufiger auftritt als bei Ladeluftkühlern. Nachfolgend wird deshalb oftmals von Kühler gesprochen, womit der Wärmeübertager im breitesten Sinne gemeint sein soll. Auch solche Wärmeübertrager, die für unterschiedliche durch die Flachrohre 1 strömende Medien ausgelegt sind.
Wie dem Fachmann bestens geläufig ist, besitzt der Kühler am Sammelkasten 3 eine Eintritts-oder Austrittsöffnung 35 für beispielsweise zu kühlende Ladeluft oder für Kühlflüssigkeit und am anderen nicht gezeichneten Sammelkasten 3 kann sich ebenfalls eine oder auch mehrere Eintritts - oder Austrittsöffnungen 35 befinden. Die Kühlluft strömt im Sinne des Blockpfeils durch die Wellrippen 2, die zwischen den Breitseiten 12 der Flachrohre 1 angeordnet sind. Es wird von Eintritts - oder Austrittsöffnungen 35 gesprochen, weil sich mit Hilfe einer oder auch mehrerer Trennwände 10 in einem oder in beiden Sammelkästen 3 und abhängig davon, ob die Öffnung 35 ein Eintritt oder ein Austritt ist ganz unterschiedliche innere Durchströmmuster des Kühlers einstellen, wie sie für konkrete Anwendungen wünschenswert sind. In der
Der Zusammenbau des in den Figuren gezeigten Kühlers kann beispielsweise wie folgt vorgenommen werden. Die Flachrohre 1 werden abwechselnd mit den Wellrippen 2 (
Die Sammelkästen 3 bestehen gemäß dem Ausführungsbeispiel aus den
Da in dem gezeigten Ausführungsbeispiel nach dem Zusammenfügen der beiden schalenartigen Teile 31, 32 zwei stirnseitige Öffnungen 33 verbleiben, müssen nicht gezeigte Verschlusskappen oder dergleichen verwendet werden. Die zwei den Sammelkasten 3 bildenden schalenartigen Teile 31, 32 sind mit in Abständen angeordneten Vorsprüngen 30 ausgestattet, die im Bereich der Schmalseiten 11 in die Enden der Flachrohre 1 eingreifen. Die Abstände der Vorsprünge 30 entsprechen exakt den Abständen der Flachrohre 1, sodass die Sammelkästen 3 in Längsrichtung der Flachrohre 1 auf die Enden derselben geschoben werden können, wobei jeder Vorsprung 30 in ein Flachrohrende eingreift, und zwar exakt in den jeweiligen oben erwähnten Überstand 5. Die erwähnten Vorsprünge 30 sind in zwei Reihen von Vorsprüngen 30 vorhanden, die mit A und B gekennzeichnet wurden. Zwischen den beiden schalenartigen Teilen 31, 32 befindet sich eine Trennwand 10, die in diesem Ausführungsbeispiel eine Längstrennwand 10 ist. Als geeignetes Mittel der Wahl zur Fixierung der Längstrennwand 10 vor dem Löten des Kühlers, wurde auch die Trennwand 10 mit in Abständen angeordneten Vorsprüngen 15 versehen. (
Wie insbesondere die
Im Übrigen möchte die Anmelderin auf die gegenwärtig noch nicht veröffentlichte internationale Patentanmeldung
In den beiden schalenartigen Teilen 31, 32 wurden nach innen gerichtete Umformungen 65 ausgebildet, die einerseits bekanntermaßen die Stabilität verbessern, weshalb auch die Teile 31, 32 recht dünnwandig ausgebildet werden können. Andererseits ist beabsichtigt, mittels der nach innen gerichteten Umformungen Einfluss auf die Strömungsverteilung zu nehmen. Bekanntlich werden die mittleren Rohre eines Wärmetauschers oftmals besser durchströmt als diejenigen, die am Rand liegen. Dadurch wird einerseits ein unerwünschtes Temperaturgefälle hervorgerufen und andererseits oft auch nicht die maximal mögliche Kühlleistung erzielt. Diesen Nachteilen soll durch eine gezielte Geometrie der Umformungen 65 begegnet werden. Die Umformungen 65 wurden gleichzeitig so ausgebildet, dass eine weitere provisorische Halterung der Trennwand 10 zwischen den Teilen 31, 32 erreicht wird, wie die Darstellungen zeigen können. Dazu wurde die Trennwand 10 mit einem Loch 16 versehen.
Es könnten für die provisorische Halterung auch am Rand der Teile 31, 32 und/oder am Rand der Trennwand 10 angeordnete umbiegbare Laschen oder dergleichen zum Einsatz kommen. Die Umformungen 65 könnten auch entfallen. (nicht gezeigt)
In den
As is well known to those skilled in the art, the radiator at the
The assembly of the cooler shown in the figures can be carried out, for example, as follows. The
The collecting
Since, in the embodiment shown , two end-
How the particular
Incidentally, the Applicant wishes to have the international patent application not yet published
In the two shell-
It could also be used for the temporary support on the edge of the
In the
Claims (14)
- Heat exchanger as a soldered or welded structure, which comprises flat tubes (1) having narrow sides (11) and broad sides (12), and corrugated fins (2) as well as collecting boxes (3) as well as containing a partition wall (10) in at least one of the collecting boxes (3), in order to form the air flow characteristic of the heat exchanger accordingly, characterized in that the collecting boxes (3) are equipped with projections (30) which are arranged at intervals and engage in the ends of the flat tubes (1) in the region of the narrow sides (11), the partition wall (10) extending diagonally and/or longitudinally between the two series (A, B) of projections (30).
- Heat exchanger according to Claim 1, characterized in that the ends of the flat tubes (1) plug into openings (40) in tube holders (4), wherein the flat tubes (1) have a protruding portion (5) on each side of the tube holders (4).
- Heat exchanger according to Claims 1 and 2, characterized in that the collecting boxes (3) bear against the edges (41) of the tube holder (4), wherein the projections (30) engage in the ends of the flat tubes (1) in the region of the protruding portions (5), wherein they bear on the inside in the narrow sides (11) of the flat tubes (1).
- Heat exchanger according to one of the preceding claims, characterized in that the collecting boxes (3) are embodied as one piece or as two shell-like parts (31, 32).
- Heat exchanger according to Claim 4, characterized in that the one shell-like part (31) is embodied in a shell-like fashion and the other shell-like part (32) is embodied in an approximately planar fashion, wherein the connection between the two parts (31, 32) is made in a plane which is parallel to the central longitudinal plane.
- Heat exchanger according to Claim 4 or 5, characterized in that the shell-like parts (31, 32) have means with which they are held together in a way which is suitable for soldering or welding.
- Heat exchanger according to Claim 6, characterized in that the means (6) are embodied as tabs and notches which are arranged at the edge of the parts (31, 32).
- Heat exchanger according to Claim 6, characterized in that the means are configured as shaped portions (65) which are formed on at least one of the parts (31, 32), are directed inwards and are formed in such a way that the parts (31, 32) can be connected.
- Heat exchanger according to Claims 1 and 8, characterized in that the shaped portions (65) which are directed inward are embodied in such a way that they have flow directing properties which promote the uniform distribution of the medium among the flat tubes (1).
- Heat exchanger according to one of Claims 4-9, characterized in that the shell-like parts (31, 32) which have been joined together have openings (33) toward the end sides of the heat exchanger, wherein side parts (70) which close off the openings (33) are present.
- Heat exchanger according to one of Claims 4-9, characterized in that at least one of the shell-like parts (31, 32) is shaped in such a way that in the state in which the parts (31, 32) are joined together no end side openings (33) are present.
- Heat exchanger according to one of the preceding Claims 4-11, characterized in that the partition wall (10) is arranged between two shell-lime parts (31, 32).
- Heat exchanger according to one of the preceding claims, characterized in that the partition wall (10) has projections (30), which engage in the ends of flat tubes.
- Heat exchanger according to one of the preceding claims, characterized in that the tube holders (4) have slots (42), in order to fix the partition wall (10).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200650006083 DE502006006083D1 (en) | 2006-11-18 | 2006-11-18 | Heat exchanger |
EP20060023987 EP1923654B1 (en) | 2006-11-18 | 2006-11-18 | Heat exchanger |
PCT/US2007/072968 WO2008008710A1 (en) | 2006-07-08 | 2007-07-06 | Heat exchanger and method of manufacturing the same |
US12/307,810 US20100032149A1 (en) | 2006-07-08 | 2007-07-06 | Heat exchanger and method of manufacturing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060023987 EP1923654B1 (en) | 2006-11-18 | 2006-11-18 | Heat exchanger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1923654A1 EP1923654A1 (en) | 2008-05-21 |
EP1923654B1 true EP1923654B1 (en) | 2010-02-03 |
Family
ID=37913548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20060023987 Expired - Fee Related EP1923654B1 (en) | 2006-07-08 | 2006-11-18 | Heat exchanger |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1923654B1 (en) |
DE (1) | DE502006006083D1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010053478A1 (en) | 2010-12-04 | 2012-06-06 | Modine Manufacturing Co. | Heat exchanger, has partition wall arranged in collecting boxes, and legged supports for partition wall, arranged on tube sheets and/or at inner side of collecting boxes and set with free edge between two legs |
US8844504B2 (en) | 2010-03-18 | 2014-09-30 | Modine Manufacturing Company | Heat exchanger and method of manufacturing the same |
US9309839B2 (en) | 2010-03-18 | 2016-04-12 | Modine Manufacturing Company | Heat exchanger and method of manufacturing the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008039516A1 (en) | 2008-08-23 | 2010-02-25 | Modine Manufacturing Co., Racine | Heat exchanger i.e. fully-metal heat exchanger, for use in motor vehicle, has incisor shaped projection whose array is engaged at region of narrow side of flat tube and another array is engaged at region of another narrow side of tube |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3920069A (en) * | 1974-03-28 | 1975-11-18 | Modine Mfg Co | Heat exchanger |
EP0864840B1 (en) * | 1997-03-11 | 2001-09-26 | Behr GmbH & Co. | Heat exchanger for automotive vehicle |
DE19819247A1 (en) * | 1998-04-29 | 1999-11-11 | Valeo Klimatech Gmbh & Co Kg | Vehicle heat exchanger and especially water/air heat exchanger or evaporator |
US6530424B2 (en) * | 1999-06-02 | 2003-03-11 | Long Manufacturing Ltd. | Clip on manifold heat exchanger |
DE10347180A1 (en) * | 2003-10-10 | 2005-05-12 | Modine Mfg Co | Heat exchangers, in particular for motor vehicles |
DE10354382A1 (en) * | 2003-11-20 | 2005-06-16 | Behr Gmbh & Co. Kg | Heat exchangers, in particular intercoolers for motor vehicles |
-
2006
- 2006-11-18 EP EP20060023987 patent/EP1923654B1/en not_active Expired - Fee Related
- 2006-11-18 DE DE200650006083 patent/DE502006006083D1/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8844504B2 (en) | 2010-03-18 | 2014-09-30 | Modine Manufacturing Company | Heat exchanger and method of manufacturing the same |
US9309839B2 (en) | 2010-03-18 | 2016-04-12 | Modine Manufacturing Company | Heat exchanger and method of manufacturing the same |
DE102010053478A1 (en) | 2010-12-04 | 2012-06-06 | Modine Manufacturing Co. | Heat exchanger, has partition wall arranged in collecting boxes, and legged supports for partition wall, arranged on tube sheets and/or at inner side of collecting boxes and set with free edge between two legs |
DE102010053478B4 (en) | 2010-12-04 | 2018-05-30 | Modine Manufacturing Co. | Heat exchanger and production process for heat exchangers |
Also Published As
Publication number | Publication date |
---|---|
DE502006006083D1 (en) | 2010-03-25 |
EP1923654A1 (en) | 2008-05-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1544564B1 (en) | Heat exchanger with flat tubes and flat heat exchanger tube | |
EP0881447B1 (en) | Heat exchanger and heat exchanging apparatus for vehicle | |
DE69207485T2 (en) | Heat exchanger | |
EP1348924B1 (en) | Exhaust gas heat exchanger for vehicle | |
DE69720347T2 (en) | Combined heat exchanger | |
EP1279805B1 (en) | Air-cooled intake air cooler | |
DE3720483A1 (en) | Heat exchanger | |
EP1701125A2 (en) | Heat exchanger with flat tubes and flat tube for heat exchanger | |
DE69911131T2 (en) | heat exchangers | |
DE19833338A1 (en) | Heat exchangers, in particular exhaust gas heat exchangers | |
EP1666827A2 (en) | Heat exchanger, more particularly for automotive vehicle | |
DE102007028792A1 (en) | heat exchangers | |
EP1626238A1 (en) | Heat exchanger having flat tubes | |
DE102008062513A1 (en) | Wärmeaustauscherlamelle | |
DE69500676T2 (en) | Heat exchanger | |
DE3834822A1 (en) | Heat exchanger | |
EP1923654B1 (en) | Heat exchanger | |
DE10248665A1 (en) | Heat exchanger in serpentine design | |
WO2005085737A1 (en) | Device for exchanging heat and method for the production of said device | |
EP1148312B1 (en) | Radiator for vehicles | |
DE60126381T2 (en) | Heat exchange module, in particular for motor vehicles, and method for its use | |
EP1923653B1 (en) | Heat exchanger | |
DE102004007510B4 (en) | Heat exchangers, in particular oil coolers for motor vehicles | |
DE69507074T2 (en) | Finned heat exchanger with a single collecting duct | |
DE19814028A1 (en) | Integrated double heat exchanger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
17P | Request for examination filed |
Effective date: 20081121 |
|
AKX | Designation fees paid |
Designated state(s): DE ES FR GB IT SE |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 502006006083 Country of ref document: DE Date of ref document: 20100325 Kind code of ref document: P |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20101104 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20151127 Year of fee payment: 10 Ref country code: DE Payment date: 20151127 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20151117 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502006006083 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20161118 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161118 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170601 |