EP1521940B1 - Heat exchanger, particularly a charge-air cooler for motor vehicles - Google Patents
Heat exchanger, particularly a charge-air cooler for motor vehicles Download PDFInfo
- Publication number
- EP1521940B1 EP1521940B1 EP03730119.9A EP03730119A EP1521940B1 EP 1521940 B1 EP1521940 B1 EP 1521940B1 EP 03730119 A EP03730119 A EP 03730119A EP 1521940 B1 EP1521940 B1 EP 1521940B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- housing
- medium
- exchanger element
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000000988 bone and bone Anatomy 0.000 claims description 9
- 230000008719 thickening Effects 0.000 claims description 4
- 239000003570 air Substances 0.000 description 80
- 238000001816 cooling Methods 0.000 description 41
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
Images
Classifications
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- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/10—Particular pattern of flow of the heat exchange media
- F28F2250/104—Particular pattern of flow of the heat exchange media with parallel flow
Definitions
- the invention relates to a heat exchanger, in particular intercooler for motor vehicles, preferably for commercial vehicles, with a first header and a second header for a first medium, wherein the two header boxes each having a first media connection for the first medium and communicating with each other via at least one heat exchanger element are and with a, the heat exchanger element receiving, inside a second medium leading housing having second media ports for the second medium.
- a heat exchanger according to the preamble of claim 1 is known from document WO 01/98723 known.
- Such heat exchangers serve in motor vehicles to provide cooled charge air.
- the charge air is cooled by means of cooling air, the cooling air used being the wind of the vehicle or ambient air conveyed by a fan.
- the two header boxes of the known heat exchanger are connected to one another, for example via charge air pipes, cooling fins being arranged between the charge air tubes for "surface enlargement.” These cooling fins are flowed through by cooling air, whereby a housing receiving the charge air tubes is provided.
- the cooling air passes transversely to the longitudinal extent of the charge air pipes in the housing with a lateral distance to a collection box, where it is deflected by 90 °, flows through the housing in the direction of the charge air ducts and leaves the housing at a distance to the other Collecting box in a direction that is perpendicular to the longitudinal extent of the charge air ducts.
- the mentioned air deflection the cooling air leads to a relatively large pressure loss. Further, the cooling air does not come in contact with the entire length of the charge air tubes, that is, the portions of the charge air tubes adjacent to the respective header are not or not sufficiently cooled by the cooling air. Overall, therefore, there is an unsatisfactory efficiency.
- the invention is based on the object to provide a heat exchanger of the type mentioned, which provides a very good heat exchange function, in particular cooling capacity without increasing the size and with only a small cooling air requirement.
- This object is achieved by a heat exchanger according to claim 1.
- This construction according to the invention makes it possible to place the second media connections in such a way that the full or nearly full length of the heat exchanger element, in particular the charge air pipes, is acted upon by the second medium and therefore a correspondingly high efficiency is achieved.
- the second media connections can be arranged, for example, in the area of the collecting boxes such that the second medium first flows along the outside of a part of the associated collecting tank or along the entire collecting tank, then encounters the heat exchanger element and carries out the heat exchange there over a correspondingly large distance. If the medium then arrives in the area of the other collecting tank, then at least part of it flows along the outside and leaves the arrangement via the second media connection.
- the housing inner wall By the at least partially present distance of the housing inner wall to at least one, preferably two headers, it is ensured that the second medium flow into the housing via the second media connection and to the Heat exchange element can get.
- the housing completely accommodates the collecting tanks.
- This arrangement offers the mentioned largest possible contact distance of the second medium with the heat exchanger element and also opens up the possibility of arranging the second media connections for the supply and the discharge of the second medium so that the lowest possible pressure loss occurs, that is, the second medium is possible not one or more so strongly deflected in his direction that sets a noticeable pressure loss.
- the two media connections are assigned to the two header tanks in such a way that the first header tank lies between the second media connection and the heat exchanger element and the second header tank is located between the other second media connection and the heat exchange element.
- the inflowing second medium first strikes the collecting box, flows past it or flows around it, and then reaches the heat exchanger element, from there to the other collecting box, flows there or flows around it and then reaches the second medium connection, the second medium dissipates.
- the flow directions are selected such that the second medium in the region of the second media connections has the same or approximately the same direction as in the heat exchanger element, that is to say they are not supplied and removed transversely to the flow in the heat exchanger element, as in the prior art. but in the same direction. Accordingly, only a small pressure loss occurs, in particular if the flow profile of the respective header tank is designed such that the flow along or flow around the each collection box is laminar, so there is a substantially vortex-free flow of the second medium.
- the flow direction of the first medium in the collecting box transversely, in particular at right angles, to the flow direction of the first medium in the heat exchanger element.
- the first medium therefore flows into the first collection box and leaves it transversely to the flow direction in the collection box, that is deflected in the collection box, in particular deflected at right angles, flows through the heat exchanger element and impinges on the second collection box.
- a deflection takes place in the direction of the longitudinal extent of the collecting tank, in particular a rectangular deflection.
- the first medium then exits from the second collection box.
- the deflection or deflections of the first medium are less important, since it is preferably the charge air of the heat exchanger forming charge air cooler, which is pending at high pressure and therefore deflection-induced pressure losses can be accepted.
- This does not apply according to the invention for the second medium, for example for cooling air of the intercooler, since this cooling air has a lower pressure, for example, when it comes to airstream or around a fan funded ambient air.
- the second media connections point in the direction of or approximately in the direction of the flow direction of the first medium in the heat exchanger element. This has already been described above, that is, the second medium flows around the two headers when flowing or outflow of the heat exchanger element.
- the first media connections point transversely, in particular at right angles to the flow direction of the first medium in the heat exchanger element. This has already been on received; the first medium is deflected after passing through the first media connection in the first collection box, then passes through the heat exchanger element and enters the second collection box and by repeated deflection to the other first media connection, which dissipates the first medium.
- the housing - seen in cross-section - has a bone shape or its shape approximates a bone shape.
- the housing to each collection box leaves a distance so that the second medium can flow along the outside of the respective collection box in the housing interior .
- the bone shape forming thickenings of the housing is a less thick area in which the heat exchanger element is located.
- the walls of the housing closely abut the heat exchanger element. These are side walls of the housing and also floor and ceiling walls. This close concern causes the second medium to come into intense heat exchange contact with the second medium without creating a faulty medium flow that flows along the inner wall of the housing but does not receive sufficient heat exchange contact with the first medium.
- the housing forms a housing portion of a fan housing of a fan.
- the heat exchanger according to the invention is integrated in the housing of the fan, that is, the entire fan housing has the fan of the fan and also the heat exchanger on, whereby a very space-saving design is achieved.
- the fan housing may preferably be formed as a spiral housing.
- the heat exchanger is designed as a countercurrent heat exchanger, that is, in the region of the heat exchanger element, the first and the second medium flow in opposite directions to each other, so that a high degree of heat exchange at low cooling air volume flow is achieved.
- the heat exchanger is designed as a DC heat exchanger, that is, the first and the second medium flow in the same direction in the heat exchanger element.
- there may be a mixed design of the two options mentioned, that is, sections are flowed through in countercurrent and other sections in the DC. Additionally or alternatively, it is also conceivable that a cross-flow heat exchanger is formed.
- the FIG. 1 shows a heat exchanger 1, which serves as a charge air cooler of a commercial vehicle.
- the heat exchanger 1 has a first collecting tank 2 and a second collecting tank 3 spaced apart from it for a first medium 4.
- the first medium 4 is charge air 5.
- the charge air 5 is to be cooled by means of a second medium 6.
- the second medium 6 is cooling air 7, which is formed by the wind and / or air sucked by a blower, not shown.
- the two header boxes 2 and 3 are tubular, formed with an oval cross section; their longitudinal extent is perpendicular to the plane of the FIG. 1 ,
- the heat exchanger 1 has a housing 8, which in the longitudinal section of FIG. 1 seen- has a bone shape. Between two thickened areas 9 and 10 of the housing 8 is a less thick area 11, in which the housing 8 has two planar walls 12, 13. In the thickened areas 9 and 10, the respective flat wall 12 and 13 is in convexly curved walls 14, 15 and 16, 17 via.
- the housing 8 extends at its ends in areas 18, 19, which in the longitudinal section of FIG. 1 considered thinner than the region 11 and each having a front side 20 and 21 respectively.
- the convexly curved walls 14,15, 16 and 17 extend at a distance a to the respective collection box 2 and 3, respectively, so that flow paths 22 to 25 are formed in the region of the header boxes 1 and 2 such that the latter can be flowed around inside the housing 8 ,
- the thickened areas 9 and 10, which lead to the formation of the bone shape, make this possible.
- the second collection box 3 is -senkrecht the plane of the FIG. 1 -
- the charge air 5 is supplied by means of a first, not shown media port 26.
- the charge air 5 thus rises in the second collection box 3 and is then deflected by 90 ° in the direction of the first collection box 2. It passes through a lying between the two headers 3, 2 heat exchanger element 27. This is indicated by the dashed arrow 28. After passing through the heat exchanger element 27, the charge air 5 enters the first collection box 2, is deflected there by 90 ° downwards and leaves the collection box 2 by means of a non-illustrated first media connection 29.
- the heat exchanger element 27 can run parallel to each other, the two Collecting boxes 2, 3 communicatively connecting charge air ducts to be formed (not shown).
- the charge air pipes extend at right angles to the longitudinal extent of the collecting tanks 2 and 3. Between the individual, spaced apart charge air ducts can be arranged forkernveriererung- cooling air ribs, which are opposite to the direction of the charge air 5 flows through the cooling air 7, so that an intense heat exchange in the Heat exchanger element 27 takes place, which causes the charge air 5 is cooled by the cooling air 7.
- the cooling air 7 is introduced into the interior of the housing 8 by means of a second media connection 30, which is located on the end face 20 of the area 18, such that it passes through the two flow paths 22 and 23 and thus at least partially surrounds the second collection box 3 ,
- the cooling air 7 then enters the heat exchanger element 27 and flows countercurrently through this component, that is, the flow direction of the charge air 5 runs opposite to the flow direction of the cooling air 7.
- the cooling air 7 leaves the heat exchanger element 27 in the region of the second header 3 and flows into the Flow paths 24 and 25, that is, the collection box 3 is flowed around on both sides.
- the cooling air 7 then reaches the end face 21 of the region 19, where a second media connection 31 is formed for the removal of the cooling air 7.
- the FIG. 2 shows a plan view of a disk contour of the heat exchanger element 27, that is, the heat exchanger element 27 is realized in stacked disk design.
- individual discs profiled aluminum sheets
- individual discs are stacked alternately, which are provided for the formation of the connection and for the formation of the two header boxes 2 and 3 with cups and passages.
- This is known in principle.
- When stacking put cup / thread on cup / thread and then the next pair of edge on edge, etc. and soldered.
- the heat exchanger element 27 according to FIG. 5 alternately formed a cooling air rib 32, a charge air rib 33 and then again a cooling air rib 32 and -following a charge air rib 33 and so on. From the FIG.
- the flow path for the charge air 5 in the region of the heat exchanger element 27 is created by placing two half shells 34, 35 on one another.
- the adjacent charge air rib 33 has a distance from the first-mentioned charge air rib 33, so that a cooling air rib 32 is formed between them, which can be flowed through by the cooling air 7 in countercurrent.
- a cooling air rib 32 is formed between them, which can be flowed through by the cooling air 7 in countercurrent.
- FIG. 3 shows the housing 8, which surrounds the heat exchanger element 27, wherein the housing 8 at diametrically opposite ends of the second media ports 30 and 31 has. Furthermore, the first media connections 26 and 29 can be seen leading to the collecting tanks 2, 3.
- charge air 5 is brought from the charge air ribs 33 and-corresponding to the arrows 35- is discharged from the collecting box 2.
- FIG. 7 shows a fan 37 with fan housing 38 and impeller 39.
- a heat exchanger element 27 according to the embodiments described above is integral at least partially received so that guided inside the fan housing 38 cooling air 7, the heat exchanger element 27 according to the FIG. 7 can flow through the arrows.
- the heat exchanger element 27 has integrated manifolds 2 and 3 and intermediate cooling air ribs 32 and charge air ribs 33 due to the stacked construction, so that a charge air flow guided there is cooled by the cooling air 7.
- the housing 38 is preferably formed as a spiral housing 40.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Die Erfindung betrifft einen Wärmetauscher, insbesondere Ladeluftkühler für Kraftfahrzeuge, bevorzugt für Nutzfahrzeuge, mit einem ersten Sammelkasten und mit einem zweiten Sammelkasten für ein erstes Medium, wobei die beiden Sammelkästen jeweils einen ersten Medienanschluss für das erste Medium aufweisen und über mindestens ein Wärmetauscherelement miteinander kommunizierend verbunden sind und mit einem, das Wärmetauscherelement aufnehmenden, im Inneren ein zweites Medium führendes Gehäuse, das zweite Medienanschlüsse für das zweite Medium aufweist. Ein Wärmetauscher gemäß dem Oberbegriff von Anspruch 1 ist aus Dokument
Derartige Wärmetauscher sind bekannt. Sie dienen in Kraftfahrzeugen zur Bereitstellung gekühlter Ladeluft. Die Ladeluft wird mittels Kühlluft abgekühlt, wobei als Kühlluft der Fahrtwind des Fahrzeugs oder von einem Lüfter geförderte Umgebungsluft eingesetzt wird. Die beiden Sammelkästen des bekannten Wärmetauschers sind beispielsweise über Ladeluftrohre miteinander verbunden, wobei -zur "Oberflächenvergrößerung- zwischen den Ladeluftrohren Kühlrippen angeordnet sind. Diese Kühlrippen werden von der Kühlluft durchströmt, wobei ein die Ladeluftrohre aufnehmendes Gehäuse vorgesehen ist. Das Gehäuse wird von Gehäusewandungen gebildet, die den Zwischenraum zwischen den beiden Sammelkästen überbrücken. Die Kühlluft tritt quer zum Längserstreckungsverlauf der Ladeluftrohre in das Gehäuse mit seitlichem Abstand zum einen Sammelkasten ein, wird dort um 90° umgelenkt, durchströmt das Gehäuse in Richtung der Ladeluftrohre und verlässt das Gehäuse mit Abstand zum anderen Sammelkasten in einer Richtung, die rechtwinklig zur Längserstreckung der Ladeluftrohre steht. Die erwähnte Luft-umlenkung der Kühlluft führt zu einem relativ großen Druckverlust. Ferner gelangt die Kühlluft nicht mit der gesamten Länge der Ladeluftrohre in Kontakt, das heißt, die an den jeweiligen Sammelkasten angrenzenden Abschnitte der Ladeluftrohre werden nicht oder nicht hinreichend von der Kühlluft gekühlt. Insgesamt liegt daher ein nicht befriedigender Wirkungsgrad vor.Such heat exchangers are known. They serve in motor vehicles to provide cooled charge air. The charge air is cooled by means of cooling air, the cooling air used being the wind of the vehicle or ambient air conveyed by a fan. The two header boxes of the known heat exchanger are connected to one another, for example via charge air pipes, cooling fins being arranged between the charge air tubes for "surface enlargement." These cooling fins are flowed through by cooling air, whereby a housing receiving the charge air tubes is provided. The cooling air passes transversely to the longitudinal extent of the charge air pipes in the housing with a lateral distance to a collection box, where it is deflected by 90 °, flows through the housing in the direction of the charge air ducts and leaves the housing at a distance to the other Collecting box in a direction that is perpendicular to the longitudinal extent of the charge air ducts The mentioned air deflection the cooling air leads to a relatively large pressure loss. Further, the cooling air does not come in contact with the entire length of the charge air tubes, that is, the portions of the charge air tubes adjacent to the respective header are not or not sufficiently cooled by the cooling air. Overall, therefore, there is an unsatisfactory efficiency.
Der Erfindung liegt die Aufgabe zu Grunde, einen Wärmetauscher der eingangs genannten Art anzugeben, der ohne Bauformvergrößerung und bei nur geringem Kühlluftbedarf eine sehr gute Wärmetauschfunktion, insbesondere Kühlleistung, erbringt.The invention is based on the object to provide a heat exchanger of the type mentioned, which provides a very good heat exchange function, in particular cooling capacity without increasing the size and with only a small cooling air requirement.
Diese Aufgabe wird erfindungsgemäß durch einen Wärmetauscher nach Anspruch 1 gelöst. Diese erfindungsgemäße Bauweise ermöglicht es, die zweiten Medienanschlüsse derart zu platzieren, dass die volle oder die fast volle Länge des Wärmetauscherelements, insbesondere der Ladeluft-Rohre, vom zweiten Medium beaufschlagt werden und daher ein entsprechend hoher Wirkungsgrad erzielt ist. Die zweiten Medienanschlüsse können beispielsweise im Bereich der Sammelkästen derart angeordnet sein, dass das zweite Medium zunächst außen entlang an einem Teil des zugeordneten Sammelkastens oder entlang des gesamten Sammelkastens strömt, dann auf das Wärmetauscherelement trifft und dort über eine entsprechend große Strecke die Wärmetauschung vornimmt. Gelangt das Medium dann in den Bereich des anderen Sammelkastens, so strömt es dort zumindest eine Teilstrecke außen entlang und verlässt die Anordnung über den zweiten Medienanschluss. Durch den zumindest bereichsweise vorliegenden Abstand der Gehäuseinnenwand zu mindestens einem, vorzugsweise beiden Sammelkästen, ist sichergestellt, dass das zweite Medium über den zweiten Medienanschluss in das Gehäuse einströmen und zu dem Wärmetauschelement gelangen kann. Entsprechendes gilt für das Ausströmen des zweiten Mediums aus dem Gehäuse, das heißt, das zweite Medium kann in einem solchen Falle das Wärmetauscherelement bis zu seinem Ende hin beströmen und wird erst dann abgeführt.This object is achieved by a heat exchanger according to
Nach der Erfindung ist vorgesehen, dass das Gehäuse die Sammelkästen vollständig aufnimmt. Diese Anordnung bietet einerseits die erwähnte größtmögliche Kontaktstrecke des zweiten Mediums mit dem Wärmetauscherelement und eröffnet ferner die Möglichkeit, die zweiten Medienanschlüsse für das Zuführen und das Abführen des zweiten Mediums derart anzuordnen, dass ein möglichst geringer Druckverlust auftritt, das heißt, das zweite Medium wird möglichst nicht ein- oder mehrfach derart stark in seiner Richtung umgelenkt, dass sich ein spürbarer Druckverlust einstellt. Es ist vorgesehen, dass die zwei Medienanschlüsse den beiden Sammelkästen derart zugeordnet sind, dass der erste Sammelkasten zwischen dem zweiten Medienanschluss und dem Wärmetauscherelement und der zweite Sammelkasten zwischen dem anderen zweiten Medienanschluss und dem Wärmetauschelement liegt. Das einströmende zweite Medium trifft in einem solchen Falle zunächst auf den Sammelkasten, strömt an diesem entlang oder umströmt ihn, und gelangt dann zu dem Wärmetauscherelement, von dort auf den anderen Sammelkasten, strömt dort entlang oder umströmt diesen und gelangt dann zum zweiten Medienanschluss, der das zweite Medium abführt. Die Strömungsrichtungen sind derart gewählt, dass das zweite Medium im Bereich der zweiten Medienanschlüsse die gleiche oder etwa die gleiche Richtung aufweist wie im Wärmetauscherelement, das heißt, sie werden nicht -wie im Stand der Technik- quer zur Strömung im Wärmetauscherelement zu- und abgeführt, sondern in gleicher Richtung. Dementsprechend tritt nur ein geringer Druckverlust auf, insbesondere wenn das Umströmungsprofil des jeweiligen Sammelkastens derart ausgestaltet wird, dass das Entlangströmen oder Umströmen des jeweiligen Sammelkastens laminar erfolgt, also eine im Wesentlichen wirbelfreie Strömung des zweiten Mediums vorliegt.According to the invention it is provided that the housing completely accommodates the collecting tanks. This arrangement on the one hand offers the mentioned largest possible contact distance of the second medium with the heat exchanger element and also opens up the possibility of arranging the second media connections for the supply and the discharge of the second medium so that the lowest possible pressure loss occurs, that is, the second medium is possible not one or more so strongly deflected in his direction that sets a noticeable pressure loss. It is envisaged that the two media connections are assigned to the two header tanks in such a way that the first header tank lies between the second media connection and the heat exchanger element and the second header tank is located between the other second media connection and the heat exchange element. In such a case, the inflowing second medium first strikes the collecting box, flows past it or flows around it, and then reaches the heat exchanger element, from there to the other collecting box, flows there or flows around it and then reaches the second medium connection, the second medium dissipates. The flow directions are selected such that the second medium in the region of the second media connections has the same or approximately the same direction as in the heat exchanger element, that is to say they are not supplied and removed transversely to the flow in the heat exchanger element, as in the prior art. but in the same direction. Accordingly, only a small pressure loss occurs, in particular if the flow profile of the respective header tank is designed such that the flow along or flow around the each collection box is laminar, so there is a substantially vortex-free flow of the second medium.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Strömungsrichtung des ersten Mediums in dem Sammelkasten quer, insbesondere rechtwinklig, zur Strömungsrichtung des ersten Mediums im Wärmetauscherelement verläuft. Das erste Medium strömt daher in den ersten Sammelkasten ein und verlässt diesen quer zur Strömungsrichtung im Sammelkasten, wird also im Sammelkasten umgelenkt, insbesondere rechtwinklig umgelenkt, durchströmt das Wärmetauscherelement und trifft auf den zweiten Sammelkasten. In diesem erfolgt wiederum eine Umlenkung in Richtung der Längserstreckung des Sammelkastens, insbesondere eine rechtwinklige Umlenkung. Das erste Medium tritt dann aus dem zweiten Sammelkasten aus. Die Umlenkung oder Umlenkungen des ersten Mediums sind weniger von Bedeutung, da es sich dabei vorzugsweise um die Ladeluft eines den Wärmetauscher bildenden Ladeluftkühlers handelt, die mit hohem Druck ansteht und daher umlenkungsbedingte Druckverluste hingenommen werden können. Dies gilt erfindungsgemäß nicht für das zweite Medium, beispielsweise für Kühlluft des Ladeluftkühlers, da diese Kühlluft einen geringeren Druck aufweist, beispielsweise wenn es sich um Fahrtwind handelt oder um von einem Lüfter geförderte Umgebungsluft.According to a development of the invention, it is provided that the flow direction of the first medium in the collecting box transversely, in particular at right angles, to the flow direction of the first medium in the heat exchanger element. The first medium therefore flows into the first collection box and leaves it transversely to the flow direction in the collection box, that is deflected in the collection box, in particular deflected at right angles, flows through the heat exchanger element and impinges on the second collection box. In this, in turn, a deflection takes place in the direction of the longitudinal extent of the collecting tank, in particular a rectangular deflection. The first medium then exits from the second collection box. The deflection or deflections of the first medium are less important, since it is preferably the charge air of the heat exchanger forming charge air cooler, which is pending at high pressure and therefore deflection-induced pressure losses can be accepted. This does not apply according to the invention for the second medium, for example for cooling air of the intercooler, since this cooling air has a lower pressure, for example, when it comes to airstream or around a fan funded ambient air.
Vorteilhaft ist es, wenn die zweiten Medienanschlüsse in Richtung oder etwa in Richtung der Strömungsrichtung des ersten Mediums im Wärmetauscherelement weisen. Hierauf wurde vorstehend schon eingegangen, das heißt, das zweite Medium umspült die beiden Sammelkästen beim Anströmen beziehungsweise Abströmen des Wärmetauscherelements.It is advantageous if the second media connections point in the direction of or approximately in the direction of the flow direction of the first medium in the heat exchanger element. This has already been described above, that is, the second medium flows around the two headers when flowing or outflow of the heat exchanger element.
Es kann vorgesehen sein, dass die ersten Medienanschlüsse quer, insbesondere rechtwinklig zur Strömungsrichtung des ersten Mediums im Wärmetauscherelement weisen. Auch hierauf wurde bereits eingegangen; das erste Medium wird nach Passieren des ersten Medienanschlusses im ersten Sammelkasten umgelenkt, passiert dann das Wärmetauscherelement und gelangt in den zweiten Sammelkasten und durch nochmalige Umlenkung zum weiteren ersten Medienanschluss, der das erste Medium ableitet.It can be provided that the first media connections point transversely, in particular at right angles to the flow direction of the first medium in the heat exchanger element. This has already been on received; the first medium is deflected after passing through the first media connection in the first collection box, then passes through the heat exchanger element and enters the second collection box and by repeated deflection to the other first media connection, which dissipates the first medium.
Es ist vorgesehen2, dass das Gehäuse -im Querschnitt gesehen- eine Knochenform aufweist oder in seiner Formgebung einer Knochenform angenähert ist. Im Bereich der beiden Verdickungen der Knochenform sind der erste und der zweite Sammelkasten angeordnet, das heißt, jede Verdickung weist einen zugeordneten Sammelkasten auf, wobei das Gehäuse zum jeweiligen Sammelkasten einen Abstand belässt, so dass im Gehäuseinneren das zweite Medium außen am jeweiligen Sammelkasten entlangströmen kann. Zwischen den beiden, die Knochenform bildenden Verdickungen des Gehäuses liegt ein weniger dicker Bereich, in dem sich das Wärmetauscherelement befindet.It is envisaged2 that the housing - seen in cross-section - has a bone shape or its shape approximates a bone shape. In the region of the two thickenings of the bone shape of the first and the second collection box are arranged, that is, each thickening has an associated collection box, the housing to each collection box leaves a distance so that the second medium can flow along the outside of the respective collection box in the housing interior , Between the two, the bone shape forming thickenings of the housing is a less thick area in which the heat exchanger element is located.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Wandungen des Gehäuses eng am Wärmetauscherelement anliegen. Es handelt sich dabei um Seitenwandungen des Gehäuses und auch Boden- und Deckenwandungen. Dieses enge Anliegen führt dazu, dass das zweite Medium in intensivem Wärmetauschkontakt mit dem zweiten Medium gelangt, ohne dass ein Fehlmediumstrom entsteht, der entlang der Innenwandung des Gehäuses strömt, jedoch dabei keinen hinreichenden Wärmetauschkontakt mit dem ersten Medium erhält.According to a development of the invention, it is provided that the walls of the housing closely abut the heat exchanger element. These are side walls of the housing and also floor and ceiling walls. This close concern causes the second medium to come into intense heat exchange contact with the second medium without creating a faulty medium flow that flows along the inner wall of the housing but does not receive sufficient heat exchange contact with the first medium.
Nach einer Weiterbildung der Erfindung kann vorgesehen sein, dass das Gehäuse einen Gehäuseabschnitt eines Lüftergehäuses eines Lüfters bildet. Mithin ist der erfindungsgemäße Wärmetauscher in dem Gehäuse des Lüfters integriert, das heißt, das gesamte Lüftergehäuse weist das Lüfterrad des Lüfters und auch den Wärmetauscher auf, wodurch eine sehr raumsparende Bauform erzielt ist. Das Lüftergehäuse kann bevorzugt als Spiralgehäuse ausgebildet sein.According to a development of the invention can be provided that the housing forms a housing portion of a fan housing of a fan. Thus, the heat exchanger according to the invention is integrated in the housing of the fan, that is, the entire fan housing has the fan of the fan and also the heat exchanger on, whereby a very space-saving design is achieved. The fan housing may preferably be formed as a spiral housing.
Besonders bevorzugt ist es, wenn der Wärmetauscher als Gegenstrom-Wärmetauscher ausgebildet ist, das heißt, im Bereich des Wärmetauscherelements strömen das erste und das zweite Medium gegensinnig zueinander, so dass ein hoher Wärmetauschgrad bei niedrigem Kühlluft-Volumenstrom erzielt ist. Alternativ ist es jedoch auch möglich, dass der Wärmetauscher als Gleichstrom-Wärmetauscher ausgebildet ist, das heißt, das erste und das zweite Medium strömen im Wärmetauscherelement in dieselbe Richtung. Schließlich kann es auch eine gemischte Bauform der beiden genannten Möglichkeiten geben, das heißt, Teilabschnitte werden im Gegenstrom und andere Teilabschnitte im Gleichstrom durchströmt. Zusätzlich oder alternativ ist es auch denkbar, dass ein Kreuzstrom-Wärmetauscher ausgebildet ist.It is particularly preferred if the heat exchanger is designed as a countercurrent heat exchanger, that is, in the region of the heat exchanger element, the first and the second medium flow in opposite directions to each other, so that a high degree of heat exchange at low cooling air volume flow is achieved. Alternatively, however, it is also possible that the heat exchanger is designed as a DC heat exchanger, that is, the first and the second medium flow in the same direction in the heat exchanger element. Finally, there may be a mixed design of the two options mentioned, that is, sections are flowed through in countercurrent and other sections in the DC. Additionally or alternatively, it is also conceivable that a cross-flow heat exchanger is formed.
Die Zeichnungen veranschaulichen Ausführungsbeispieler der Erfindung, und zwar zeigt:
Figur 1- einen Längsschnitt durch einen Wärmetauscher, dessen Formgebung einer Knochenform angenähert ist,
Figur 2- eine Draufsicht auf die Scheibenkontur eines Wärmetauscherelements eines Wärmetauschers, teilweise im Schnitt,
Figur 3- eine weitere Ausführungsform eines Wärmetauschers, teilweise aufgeschnitten,
- Figur 4
- eine vergrößerte Detailansicht des Wärmetauschers der
,Figur 3 Figur 5- ein Schnitt entlang der Linie V-V in
,Figur 2 Figur 6- ein Schnitt entlang der Linie VI-VI in
undFigur 2 - Figur 7
- ein weiteres Ausführungsbeispiel eines Wärmetauschers integriert in das Lüftergehäuse eines Lüfters.
- FIG. 1
- a longitudinal section through a heat exchanger whose shape is approximated to a bone shape,
- FIG. 2
- a plan view of the disk contour of a heat exchanger element of a heat exchanger, partially in section,
- FIG. 3
- another embodiment of a heat exchanger, partially cut open,
- FIG. 4
- an enlarged detail view of the heat exchanger of
FIG. 3 . - FIG. 5
- a section along the line VV in
FIG. 2 . - FIG. 6
- a section along the line VI-VI in
FIG. 2 and - FIG. 7
- Another embodiment of a heat exchanger integrated into the fan housing of a fan.
Die
Der Wärmetauscher 1 besitzt ein Gehäuse 8, das -im Längsschnitt der
Dem zweiten Sammelkasten 3 wird -senkrecht zur Zeichenebene der
Der
Die
Aus den
Der
Auch beim Ausführungsbeispiel der
Die
Claims (11)
- A heat exchanger (1), in particular a charge-air cooler for motor vehicles, preferably for utility vehicles, having a first collecting vessel (2) and a second collecting vessel (3) for a first medium (4), wherein the two collecting vessels (2, 3) each have a first media connection (26, 29) for the first medium (4) and are connected to one another in a communicating manner via at least one heat exchanger element (27), and having a housing (8) which accommodates the heat exchanger element (27), conducts a second medium in the interior and has second media connections (30, 31) for the second medium, wherein the housing (8) is embodied in such a way that both collecting vessels (2, 3) are accommodated in the interior thereof, with a distance to the inner wall of the housing, wherein the housing (8) is in the shape of a bone when viewed in the longitudinal section or its shape is approximated to a bone shape, such that it has two thickened regions (9, 10) and one intermediate less thick region (11), wherein the heat exchanger element (27) is in the less thick region (11) and wherein the second media connections (30, 31) are assigned to the two collecting vessels (2, 3) in such a way that the first collecting vessel (2) is located between a second media connection (30) and the heat exchanger element (27) and the second collecting vessel (3) is located between the other, second media connection (31) and the heat exchanger element (27), characterised in that the thickenings each have one of the collecting vessels.
- The heat exchanger according to claim 1, characterised in that the direction of flow of the first medium (4) in the collecting vessels (2, 3) is in a transverse direction, in particular at right angles, with respect to the direction of flow of the first medium (4) in the heat exchanger element (27).
- The heat exchanger according to one of the preceding claims, characterised in that the second media connections (30, 31) point in the direction, or approximately in the direction, of flow of the first medium (4) in the heat exchanger element (27).
- The heat exchanger according to one of the preceding claims, characterised in that the first media connections (26, 29) point in the transverse direction, in particular at right angles, with respect to the direction of flow of the first medium (4) in the heat exchanger element (27).
- The heat exchanger according to one of the preceding claims, characterised in that the first media connections (26, 29) point in the direction, or approximately in the direction, of the longitudinal extent of the collecting vessels (2, 3).
- The heat exchanger according to one of the preceding claims, characterised in that the respective first media connection (26, 29) is aligned with the longitudinal extent of the associated first or second collecting vessel (2, 3).
- The heat exchanger according to one of the preceding claims, characterised in that the walls (12, 13) and associated bottom and top walls of the housing (8) bear snugly against the heat exchanger element (27).
- The heat exchanger according to one of the preceding claims, characterised in that the housing (8) forms a housing section of a fan housing (38) of a fan (37).
- The heat exchanger according to claim 8, characterised in that the fan housing (38) is embodied as a helical housing (40).
- The heat exchanger according to one of the preceding claims, characterised in that it is embodied as a counter flow heat exchanger.
- The heat exchanger according to one of the preceding claims, characterised in that it is embodied as a cocurrent heat exchanger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11165855A EP2410277A1 (en) | 2002-07-04 | 2003-05-26 | Heat exchanger, in particular charge air cooler for motor vehicles |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10230852A DE10230852A1 (en) | 2002-07-04 | 2002-07-04 | Heat exchangers, in particular intercoolers for motor vehicles |
DE10230852 | 2002-07-04 | ||
PCT/EP2003/005516 WO2004005828A1 (en) | 2002-07-04 | 2003-05-26 | Heat exchanger, particularly a charge-air cooler for motor vehicles |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11165855A Division-Into EP2410277A1 (en) | 2002-07-04 | 2003-05-26 | Heat exchanger, in particular charge air cooler for motor vehicles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1521940A1 EP1521940A1 (en) | 2005-04-13 |
EP1521940B1 true EP1521940B1 (en) | 2016-10-12 |
Family
ID=29761780
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11165855A Withdrawn EP2410277A1 (en) | 2002-07-04 | 2003-05-26 | Heat exchanger, in particular charge air cooler for motor vehicles |
EP03730119.9A Expired - Lifetime EP1521940B1 (en) | 2002-07-04 | 2003-05-26 | Heat exchanger, particularly a charge-air cooler for motor vehicles |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11165855A Withdrawn EP2410277A1 (en) | 2002-07-04 | 2003-05-26 | Heat exchanger, in particular charge air cooler for motor vehicles |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050230092A1 (en) |
EP (2) | EP2410277A1 (en) |
JP (1) | JP4411376B2 (en) |
AU (1) | AU2003240716A1 (en) |
DE (1) | DE10230852A1 (en) |
WO (1) | WO2004005828A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004001462A1 (en) | 2004-01-08 | 2005-08-18 | Behr Gmbh & Co. Kg | cooling system |
US6997248B2 (en) | 2004-05-19 | 2006-02-14 | Outokumpu Oyj | High pressure high temperature charge air cooler |
EP1941224A1 (en) * | 2005-10-20 | 2008-07-09 | Behr GmbH & Co. KG | Heat exchanger |
US8225852B2 (en) | 2008-04-30 | 2012-07-24 | Dana Canada Corporation | Heat exchanger using air and liquid as coolants |
US9631876B2 (en) * | 2013-03-19 | 2017-04-25 | Mahle International Gmbh | Heat exchanger |
SI3372937T1 (en) * | 2017-03-10 | 2022-04-29 | Alfa Laval Corporate Ab | Plate package for heat exchanger devices and a heat exchanger device |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1732938A (en) * | 1929-10-22 | Ventilator and temperature equalizer | ||
US3953176A (en) * | 1973-05-22 | 1976-04-27 | Texas Instruments Incorporated | Catalytic converter |
DE3444961A1 (en) * | 1984-12-10 | 1986-06-12 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Heat exchanger for two media, in particular a charge-air cooler for an internal combustion engine |
DE4223423A1 (en) * | 1992-07-16 | 1994-01-20 | Laengerer & Reich Gmbh & Co | Heat exchanger |
DE4307504C1 (en) * | 1993-03-10 | 1994-09-22 | Mtu Friedrichshafen Gmbh | Heat exchanger, in particular charge air cooler of an internal combustion engine |
DE4307503C2 (en) * | 1993-03-10 | 1995-01-19 | Mtu Friedrichshafen Gmbh | Heat exchanger, in particular charge air cooler of an internal combustion engine |
DE19547928C2 (en) * | 1995-06-30 | 1999-03-11 | Mtu Friedrichshafen Gmbh | Plate heat exchanger |
US6659170B1 (en) * | 1996-06-17 | 2003-12-09 | Hemant D. Kale | Energy-efficient, finned-coil heat exchanger |
DE19734690C2 (en) * | 1997-08-11 | 2000-02-17 | Modine Mfg Co | Heat exchangers, for example air-cooled intercoolers |
DE19830846B4 (en) * | 1998-07-10 | 2007-03-15 | Behr Gmbh & Co. Kg | heat exchangers |
DE19846518B4 (en) * | 1998-10-09 | 2007-09-20 | Modine Manufacturing Co., Racine | Heat exchangers, in particular for gases and liquids |
DE19859675B4 (en) * | 1998-12-23 | 2006-07-20 | Behr Gmbh & Co. Kg | heat exchangers |
DE19902504B4 (en) * | 1999-01-22 | 2005-09-22 | Behr Gmbh & Co. Kg | Heat exchanger, in particular intercooler |
DE19927607A1 (en) * | 1999-06-17 | 2000-12-21 | Behr Gmbh & Co | Charging air cooler for vehicle engine has air entry end exit pipes coupled via stack of flat rectangular pipe sections enclosed by housing mantle through which cooling medium is passed |
JP2001330394A (en) * | 2000-05-22 | 2001-11-30 | Denso Corp | Exhaust gas heat exchanger |
GB0015041D0 (en) * | 2000-06-21 | 2000-08-09 | Serck Heat Transfer Limited | Exhaust gas cooler |
EP1189008B1 (en) * | 2000-09-15 | 2003-11-26 | Toyo Radiator Co., Ltd. | Heat exchanger |
US7077190B2 (en) * | 2001-07-10 | 2006-07-18 | Denso Corporation | Exhaust gas heat exchanger |
DE102005021931A1 (en) * | 2005-05-12 | 2006-11-16 | Modine Manufacturing Co., Racine | Heat exchanger block especially for vehicles has stabilizing metal strips clipped across the block |
-
2002
- 2002-07-04 DE DE10230852A patent/DE10230852A1/en not_active Withdrawn
-
2003
- 2003-05-26 US US10/519,709 patent/US20050230092A1/en not_active Abandoned
- 2003-05-26 WO PCT/EP2003/005516 patent/WO2004005828A1/en active Application Filing
- 2003-05-26 JP JP2004518507A patent/JP4411376B2/en not_active Expired - Fee Related
- 2003-05-26 AU AU2003240716A patent/AU2003240716A1/en not_active Abandoned
- 2003-05-26 EP EP11165855A patent/EP2410277A1/en not_active Withdrawn
- 2003-05-26 EP EP03730119.9A patent/EP1521940B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1521940A1 (en) | 2005-04-13 |
WO2004005828A1 (en) | 2004-01-15 |
EP2410277A1 (en) | 2012-01-25 |
JP4411376B2 (en) | 2010-02-10 |
JP2005531747A (en) | 2005-10-20 |
DE10230852A1 (en) | 2004-01-22 |
US20050230092A1 (en) | 2005-10-20 |
AU2003240716A1 (en) | 2004-01-23 |
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