EP2317265A2 - Heat exchanger, in particular cooler for vehicle, with two exchanging portions, in particular low temperature and high temperature portion - Google Patents
Heat exchanger, in particular cooler for vehicle, with two exchanging portions, in particular low temperature and high temperature portion Download PDFInfo
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- EP2317265A2 EP2317265A2 EP10188607A EP10188607A EP2317265A2 EP 2317265 A2 EP2317265 A2 EP 2317265A2 EP 10188607 A EP10188607 A EP 10188607A EP 10188607 A EP10188607 A EP 10188607A EP 2317265 A2 EP2317265 A2 EP 2317265A2
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- Prior art keywords
- exchanger
- heat exchanger
- section
- height
- seal
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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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
- F28D1/0443—Combination of units extending one beside or one above the other
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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
- 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
Definitions
- the invention relates to a heat exchanger, in particular coolant radiator for a motor vehicle, according to the preamble of claim 1.
- the low-temperature circuit can serve, for example, the cooling of an indirect intercooler and / or exhaust gas cooler.
- the idea is known to form the coolant radiator of the internal combustion engine as a high-temperature cooling circuit and the low-temperature radiator structurally integrated as a low-temperature circuit in a heat exchanger, wherein a part of the exchanger tubes the high-temperature circuit and a part of the exchanger tubes of the integrated heat exchanger the low-temperature Cooling circuit are assigned.
- the problem of large thermoelectric voltages especially in the area of adjoining the two cooling circuits.
- a further improved reduction of the thermal voltage is achieved at a ratio between 0.3 and about 0.36 of the two partial heights h1: h2 to each other.
- the ratio of the partial heights h1: h2 to each other is exactly one third.
- the definition of exactly one third is to be understood in particular as meaning a ratio of the numbers of flat tubes stacked in the vertical direction of the two partial quantities or exchanger sections, that is, for example in the case of a first exchanger section with a number of ten exchanger tubes and a second exchanger section with a number of twenty exchanger tubes.
- the exchanger tubes of the two sections can have the same distances from each other.
- At least one of the collectors has a separating member between two collector sections each associated with the exchanger sections, a seal being provided between a box part and a cover part of the collector box.
- a separating member between two collector sections each associated with the exchanger sections, a seal being provided between a box part and a cover part of the collector box.
- the seal is designed as a circumferential seal with a web in the region of the separating member, wherein the seal is formed invariant with respect to a rotation through 180 ° in the sealing plane.
- the invariance relative to a rotation of 180 ° represents a significant simplification of an automated assembly of the collector.
- attention must no longer be paid to an orientation of the supplied seal during assembly.
- Invariance in the context of the invention does not necessarily require a strict symmetry of the seal against a mirror or rotation but a functional symmetry with respect to the sealing function with respect to intended receiving structures such as edge-side grooves of the box part and / or cover part.
- both collectors each have a seal which is invariant with respect to the rotation through 180 ° in the sealing plane.
- Both seals are particularly preferably formed as equal parts, whereby the total cost of manufacturing a heat exchanger according to the invention can be further reduced.
- At least one of the exchanger sections has a division into at least two flow paths of opposite flow direction.
- the order of the flow is designed so that in the region of the adjacency of the two exchanger sections, a particularly low temperature gradient for further reduction of the thermal stresses is present.
- the second exchanger section is divided symmetrically into two flow paths, wherein particularly preferably each of the flow paths has a height of one third of the total height of the heat exchanger.
- a seal with two webs may be provided, wherein each of the webs exceeds the limit of one third of the total height of the collector or heat exchanger and seals corresponding separating sections in the collector box.
- the first exchanger section can be divided symmetrically into two flow paths, wherein in a particularly preferred detailed design, each of the flow paths has a height of one sixth of the total height of the heat exchanger.
- Suitable seals for this purpose can have more than two webs, which are arranged at respectively suitable positions, for example one-sixth of the total height and one-third of the total height. Such seals may also preferably have the above-described invariance with respect to rotation.
- the two fluid circuits of the two exchanger sections are in fluid exchange with each other, wherein in particular the first exchanger section is flowed on the input side of an output-side branch of the second exchanger section.
- the fluid is, for example, liquid coolant of an engine cooling circuit, wherein a branch of the coolant cooled in the high-temperature section flows into the second section or low-temperature section of the heat exchanger according to the invention and further cooling is effected there.
- the branch can in principle also be provided outside the heat exchanger. In principle, however, a complete separation of the two exchanger sections with respect to the fluid flowing through can also be provided in the sense of the invention, wherein in particular the two fluid circuits can have different fluids.
- Fig. 1 shows a heat exchanger according to the invention according to a first embodiment with a first header 1, a second header 2 and a plurality of extending between the Sammlem 1.2 exchanger tubes 3.
- the exchanger tubes 3 are made as flat tubes made of aluminum, wherein between adjacent exchanger tubes in each case ribs Improvement of the heat transfer are arranged.
- the heat exchanger has a first exchanger section A and a second exchanger section B, wherein in the vertical direction h or stacking direction of the flat tubes of the heat exchanger, the first exchanger section A has a height h1 and the second exchanger section B has a height h2.
- the ratio of heights h1: h2 is exactly one third.
- the flat tubes 3 are arranged equidistantly over both exchanger sections A, B and the second exchanger section B comprises exactly twice the number of exchanger tubes 3 as the first exchanger section A.
- the two exchanger sections A, B are each associated with different fluid circuits, for example a high-temperature circuit for cooling an internal combustion engine for the exchanger section B and a low-temperature circuit for cooling an indirect charge air cooler and / or exhaust gas cooler.
- both collectors 1, 2 each have two openings 1a, 1b, 2a, 2b for the supply (1a, 2a) and discharge (1b, 2b) of the fluids of the two fluid circuits.
- a separating member 1c, 2c for the fluid-tight separation of the two fluid circuits associated collector portions is provided.
- Fig. 1 How out Fig. 1 can be seen on the flow directions indicating arrows, the first exchanger section A is flowed through in the opposite direction to the second exchanger section B, so that the maximum possible temperature differences in the vicinity of the separating sections 1c, 2c and thus the particularly critical in this area, thermally induced material stresses are reduced , A particular reduction of such material stresses is ensured by the choice of the height ratio h1.h2 of the two exchanger sections A, B as exactly one third.
- the two collectors 1, 2 each comprise a box part (not shown) with a bottom portion and therein passages for receiving the ends of the flat tubes 3 and a plastic molded cover part (not shown), wherein in a known manner between the box part of aluminum and the Cover part made of plastic a circumferential seal 4 (see Fig. 6 ) is provided.
- the seal 4 is present, but not necessarily made as an injection molded part made of an elastomer and includes in addition to a closed circumferential, approximately rectangular Au- ⁇ enrand 4a two symmetrically arranged webs 4b.
- the webs 4b serve in each case to seal over one of the separating sections 1c, 2c used in the box parts for the fluid-tight separation of the two header sections.
- the webs 4b are formed symmetrically to a central axis of symmetry of the seal 4, so that in particular an invariance of the seal with respect to a rotation through 180 ° in the sealing plane (equal to the plane of the drawing in Fig. 6 ) is achieved.
- a rotation through 180 ° in the sealing plane equal to the plane of the drawing in Fig. 6
- one of the two webs 4b over a respective separating section 1c. 2c of the collector come to rest, while the other webs 4b has no sealing function.
- the seal 4 can be formed as a common part for both collectors 1,2 and also in the feed in an automated assembly of lid part and box part is invariant with respect to their orientation.
- the embodiment according to Fig. 2 differs from the first embodiment in that the higher exchanger section B is divided into two flow paths B1, B2, wherein the first collector 1 includes both an inflow and an outflow for the second exchanger section B.
- the second collector 2 has no Anachlussö réelleen in the header section of the second exchanger section B, but serves to deflect the fluid flow by 180 °, the second exchanger section B is in the embodiment according to Fig. 2 thus designed as a U-flow cooler.
- Fig. 3 is not the higher second exchanger section B divided into two flow paths, but in an analogous manner, the lower first exchanger section A.
- A2 of the first exchanger section A each have a height of one sixth of the total height of the heat exchanger so that the first exchanger section A as in the previous examples has a total height h1 of one third of the total height h.
- both the first exchanger section A and the second exchanger section B are divided into two flow paths A1, A2, B1, B2.
- a particularly highly smoothed course of a heat gradient over the vertical direction of the heat exchanger can be achieved, so that the thermal stresses are particularly low.
- seal after Fig. 6 for use with the embodiments of Fig. 3 and Fig. 4 can be modified so that it has additional dividers 4b at the height of the required separating members 1c, 2c, which are provided for separating the exchanger areas A, B in separate flow paths.
- the heat exchanger has only one fluid inlet 1a and two fluid outflows 2b, 1b.
- the entire hot fluid flow which, for example, flows back from the cooling of an internal combustion engine, passes through the connection 1a into the higher second exchanger region B, after which it enters the second collector 2 which is formed without a separating member.
- a partial flow of the thus pre-cooled fluid flow leaves the second collector 2 through the outflow 2b.
- a further partial flow flows through a precisely dimensioned orifice 5 in the second collector 2 and subsequently into the first exchanger section A, the height h1 of which, as in the example, follows Fig. 1 one third of the total height of the heat exchanger is.
- the pre-cooled part fluid flow is further cooled, so that section A is also a low-temperature cooling section.
- the particularly strongly cooled partial flow then leaves the first exchanger area A through the outflow opening 1b in the first collector 1.
- All of the above-explained heat exchangers can be designed as single or multi-row heat exchangers depending on the requirements, ie in a direction of flow with cooling air (direction perpendicular to the plane of the drawing) Fig. 1 to Fig. 5 ) have a plurality of flat tubes in a row.
Abstract
Description
Die Erfindung betrifft einen Wärmetauscher, insbesondere Kühlmittelkühler für ein Kraftfahrzeug, nach dem Oberbegriff des Anspruchs 1.The invention relates to a heat exchanger, in particular coolant radiator for a motor vehicle, according to the preamble of
Für Verbrennungsmotoren von Kraftfahrzeugen ist es bekannt, neben einem Hauptkühler zur Kühlung eines Motorkühlmittels einen zusätzlichen Kühler zur Kühlung eines Niedertemperatur-Kühlkreislauft vorzusehen, wobei der Niedertemperatur-Kreislauf zum Beispiel der Kühlung eines indirekten Ladeluftkühlers und/oder Abgaskühlers dienen kann. Dabei ist die Idee bekannt, den Kühlmittelkühler des Verbrennungsmotors als Hochtemperatur-Kühlkreislauf und den Niedertemperatur-Kühler als Niedertemperatur-Kreislauf baulich integriert in einem Wärmetauscher auszubilden, wobei ein Teil der Tauscherrohre dem Hochtemperatur-Kreislauf und ein Teil der Tauscherrohre des integrierten Wärmetauschers dem Niedertemperatur-Kühlkreislauf zugeordnet sind. Bei einer solchen integrierten Bauform besteht das Problem großer Thermospannungen vor allem im Bereich der Angrenzung der beiden Kühlkreisläufe.For internal combustion engines of motor vehicles, it is known to provide, in addition to a main radiator for cooling an engine coolant, an additional radiator for cooling a low-temperature Kühlkreislauft, the low-temperature circuit can serve, for example, the cooling of an indirect intercooler and / or exhaust gas cooler. Here, the idea is known to form the coolant radiator of the internal combustion engine as a high-temperature cooling circuit and the low-temperature radiator structurally integrated as a low-temperature circuit in a heat exchanger, wherein a part of the exchanger tubes the high-temperature circuit and a part of the exchanger tubes of the integrated heat exchanger the low-temperature Cooling circuit are assigned. In such an integrated design, the problem of large thermoelectric voltages, especially in the area of adjoining the two cooling circuits.
Es ist die Aufgabe der Erfindung, einen Wärmetauscher anzugeben, der in integrierter Bauform über zwei Kühlkreisläufe verfügt und besonders unempfindlich gegenüber Temperaturunterschieden in den Kühlkreisläufen ist.It is the object of the invention to provide a heat exchanger which has two cooling circuits in integrated design and is particularly insensitive to temperature differences in the cooling circuits.
Diese Aufgabe wird für einen eingangs genannten Wärmetauscher erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Simulationen und Versuche haben den überraschenden Effekt gezeigt, dass thermisch bedingte mechanische Verspannungen im Bereich der Grenze zwischen den benachbarten Tauscherabschnitten besonders gering sind, wenn die Tauscherabschnitte ein Höhenverhältnis von etwa 0,2 bis etwa 0,4 aufweisen, Insbesondere gilt dies für Fälle, in denen übliche Temperaturen für einen Kühlmittelkühler eines Verbrennungsmotors, also zum Beispiel 90° C, für den höheren, zweiten Tauscherabschnitt vorliegen und Temperaturen eines Niedertemperatur-Kreistaufs, zum Beispiel für einen direkten Ladeluftkühler und/oder Abgaswärmetauscher im Bereich von 30° C in dem niedrigeren, ersten Tauscherabschnitt vorliegen.This object is achieved according to the invention for a heat exchanger mentioned above with the characterizing features of
Eine weiter verbesserte Reduzierung der Thermospannung wird bei einem Verhältnis zwischen 0,3 und etwa 0,36 der beiden Teilhöhen h1:h2 zueinander erzielt. Bei einer besonders optimierten Ausführungsform beträgt das Verhältnis der Teilhöhen h1:h2 zueinander genau ein Drittel. Unter der Definition von genau einem Drittel ist insbesondere ein Verhältnis der Anzahlen der in der Hochrichtung gestapelten Flachrohre der beiden Teilmengen bzw. Tauscherabschnitte zu verstehen, also zum Beispiel im Fall eines ersten Tauscherabschnitts mit einer Anzahl von zehn Tauscherrohren und eines zweiten Tauscherabschnitts mit einer Anzahl von zwanzig Tauscherrohren. Zur baulichen Vereinfachung können die Tauscherrohre der beiden Abschnitte dabei die gleichen Abstände zueinander aufweisen. Neben der besonderen Optimierung betreffend die auftretenden Thermospannungen ist eine solche Bauform von einer Teilung von einem Drittel zu zwei Drittel der Teilhöhen h1, h2 besonders geeignet, um symmetrische, gegenüber Verdrehungen invariante Bauteile, wie insbesondere Dichtungen oder auch Bodenstücke, Kastenteile oder Deckelteile der Sammler vorzusehen. Unter der Anzahl der Flachrohre bzw. dem Anzahlenverhältnis im vorstehend erläuterten Sinn sind lediglich die Anzahlen in der Hochrichtung zu verstehen. Die Erfindung ist dabei insbesondere nicht auf einreihige Wärmetauscher beschränkt, sondern es können in einer Tiefenrichtung bzw. Durchströmungsrichtung mit einem Kühlfluid (z.B. Luft) auch mehrere Flachrohre hintereinander vorgesehen sein.A further improved reduction of the thermal voltage is achieved at a ratio between 0.3 and about 0.36 of the two partial heights h1: h2 to each other. In a particularly optimized embodiment, the ratio of the partial heights h1: h2 to each other is exactly one third. The definition of exactly one third is to be understood in particular as meaning a ratio of the numbers of flat tubes stacked in the vertical direction of the two partial quantities or exchanger sections, that is, for example in the case of a first exchanger section with a number of ten exchanger tubes and a second exchanger section with a number of twenty exchanger tubes. For structural simplification, the exchanger tubes of the two sections can have the same distances from each other. In addition to the special optimization regarding the occurring thermal stresses is such a design of a division of one-third to two-thirds of Part heights h1, h2 particularly suitable to provide symmetrical, against torsion invariant components, such as in particular seals or bottom pieces, box parts or cover parts of the collector. The number of flat tubes or the number ratio in the sense explained above is to be understood as meaning only the numbers in the vertical direction. The invention is in particular not limited to single-row heat exchangers, but it can also be provided in a depth direction or flow direction with a cooling fluid (eg air) and a plurality of flat tubes in a row.
Bei einer bevorzugten Ausführungsform der Erfindung hat zumindest einer der Sammler ein Trennglied zwischen zwei jeweils den Tauscherabschnitten zugeordneten Sammlerabschnitten, wobei eine Dichtung zwischen einem Kastenteil und einem Deckelteil des Sammlerkastens vorgesehen ist. Solche Bauformen sind bekannt und kostengünstig, wobei das Deckelteil in bevorzugter Detailgestaltung aus einem Kunststoff ausgebildet ist.In a preferred embodiment of the invention, at least one of the collectors has a separating member between two collector sections each associated with the exchanger sections, a seal being provided between a box part and a cover part of the collector box. Such designs are known and inexpensive, wherein the cover part is formed in a preferred detailed design of a plastic.
Besonders bevorzugt ist die Dichtung als umlaufende Dichtung mit einem Steg im Bereich des Trennglieds ausgebildet, wobei die Dichtung invariant bezüglich einer Drehung um 180° in der Dichtungsebene ausgebildet ist. Durch den Steg der Dichtung wird das Trennglied zwischen den Sammlerabschnitten gegenüber dem Deckelteil abgedichtet, wobei die Invarianz gegenüber einer Drehung um 180° eine deutliche Vereinfachung einer automatisierten Montage des Sammlers darstellt. Insbesondere muss auf eine Orientierung der zugeführten Dichtung während der Montage nicht mehr geachtet werden. Invarianz im Sinne der Erfindung erfordert nicht notwendig eine strenge Formsymmetrie der Dichtung gegenüber einer Spiegelung oder Drehung sondern eine funktionelle Symmetrie bezüglich der Dichtungsfunktion in Bezug auf vorgesehene Aufnahmestrukturen wie z.B. randseitige Nuten von Kastenteil und/oder Deckelteil.Particularly preferably, the seal is designed as a circumferential seal with a web in the region of the separating member, wherein the seal is formed invariant with respect to a rotation through 180 ° in the sealing plane. Through the web of the seal, the separating member between the collector sections relative to the lid member is sealed, the invariance relative to a rotation of 180 ° represents a significant simplification of an automated assembly of the collector. In particular, attention must no longer be paid to an orientation of the supplied seal during assembly. Invariance in the context of the invention does not necessarily require a strict symmetry of the seal against a mirror or rotation but a functional symmetry with respect to the sealing function with respect to intended receiving structures such as edge-side grooves of the box part and / or cover part.
Bei einer vorteilhaften Weiterbildung dieser Ausführungsform haben beide Sammler jeweils eine bezüglich der Drehung um 180º in der Dichtungsebene invariante Dichtung. Besonders bevorzugt sind dabei beide Dichtungen als Gleichteile ausgebildet, wodurch die Gesamtkosten der Herstellung eines erfindungsgemäßen Wärmetauschers weiter verringert werden können.In an advantageous development of this embodiment, both collectors each have a seal which is invariant with respect to the rotation through 180 ° in the sealing plane. Both seals are particularly preferably formed as equal parts, whereby the total cost of manufacturing a heat exchanger according to the invention can be further reduced.
Allgemein vorteilhaft ist es vorgesehen, dass zumindest einer der Tauscherabschnitte eine Aufteilung in zumindest zwei Strömungswege von entgegengesetzter Strömungsrichtung aufweist. Zweckmäßig ist dabei die Reihenfolge der Durchströmung so ausgelegt, dass im Bereich der Angrenzung der beiden Tauscherabschnitte ein besonders niedriges Temperaturgefälle zur weiteren Reduzierung der Thermospannungen vorliegt. Besonders bevorzugt ist der zweite Tauscherabschnitt symmetrisch in zwei Strömungswege aufgeteilt, wobei besonders bevorzugt jeder der Strömungswege eine Höhe von einem Drittel der Gesamthöhe des Wärmetauschers aufweist. Insbesondere, aber nicht ausschließlich bei einer solchen Ausführungsform kann zum Beispiel eine Dichtung mit zwei Stegen vorgesehen sein, wobei jeder der Stege Ober die Grenze eines Drittels der Gesamthöhe des Sammlers bzw. Wärmetauschers verläuft und entsprechende Trennabschnitte in dem Sammlerkasten abdichtet.Generally, it is provided that at least one of the exchanger sections has a division into at least two flow paths of opposite flow direction. Suitably, the order of the flow is designed so that in the region of the adjacency of the two exchanger sections, a particularly low temperature gradient for further reduction of the thermal stresses is present. Particularly preferably, the second exchanger section is divided symmetrically into two flow paths, wherein particularly preferably each of the flow paths has a height of one third of the total height of the heat exchanger. In particular, but not exclusively in such an embodiment, for example, a seal with two webs may be provided, wherein each of the webs exceeds the limit of one third of the total height of the collector or heat exchanger and seals corresponding separating sections in the collector box.
Alternativ oder ergänzend kann der erste Tauscherabschnitt symmetrisch in zwei Strömungswege aufgeteilt sein, wobei in besonders bevorzugter Detailgestaltung jeder der Strömungswege eine Höhe von einem Sechstel der Gesamthöhe des Wärmetauschers aufweist. Hierfür geeignete Dichtungen können mehr als zwei Stege aufweisen, die an jeweils geeigneten Positionen, zum Beispiel jeweils einem Sechstel der Gesamthöhe und einem Drittel der Gesamthöhe, angeordnet sind. Auch solche Dichtungen können bevorzugt die vorstehend beschriebene Invarianz gegenüber einer Drehung aufweisen.Alternatively or additionally, the first exchanger section can be divided symmetrically into two flow paths, wherein in a particularly preferred detailed design, each of the flow paths has a height of one sixth of the total height of the heat exchanger. Suitable seals for this purpose can have more than two webs, which are arranged at respectively suitable positions, for example one-sixth of the total height and one-third of the total height. Such seals may also preferably have the above-described invariance with respect to rotation.
Bei einer weiteren, alternativen oder ergänzenden Ausführungsform der Erfindung stehen die beiden Fluidkreisläufe der beiden Tauscherabschnitte in einem Fluidaustausch miteinander, wobei insbesondere der erste Tauscherabschnitt eingangsseitig von einem ausgangsseitigen Abzweig des zweiten Tauscherabschnitts beströmt wird. Bei dem Fluid handelt es sich beispielsweise um flüssiges Kühlmittel eines Motor-Kühlkreislaufs, wobei ein Abzweig des im Hochtemperaturabschnitt gekühlten Kühlmittels in den zweiten Abschnitt bzw. Niedertemperatur-Abschnitt des erfindungsgemäßen Wärmetauschers strömt und dort weitere gekühlt wird. Der Abzweig kann grundsätzlich auch außerhalb des Wärmetauschers vorgesehen sein. Grundsätzlich kann im Sinne der Erfindung aber auch eine vollständige Trennung der beiden Tauscherabschnitte bezüglich des durchströmenden Fluids vorgesehen sein, wobei insbesondere die beiden Fluidkreisläufe unterschiedliche Fluide aufweisen können.In a further, alternative or supplementary embodiment of the invention, the two fluid circuits of the two exchanger sections are in fluid exchange with each other, wherein in particular the first exchanger section is flowed on the input side of an output-side branch of the second exchanger section. The fluid is, for example, liquid coolant of an engine cooling circuit, wherein a branch of the coolant cooled in the high-temperature section flows into the second section or low-temperature section of the heat exchanger according to the invention and further cooling is effected there. The branch can in principle also be provided outside the heat exchanger. In principle, however, a complete separation of the two exchanger sections with respect to the fluid flowing through can also be provided in the sense of the invention, wherein in particular the two fluid circuits can have different fluids.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den nachfolgend beschriebenen Ausführungsbeispielen sowie aus den abhängigen Ansprüchen.Further advantages and features of the invention will become apparent from the embodiments described below and from the dependent claims.
Nachfolgend werden mehrere Ausführungsboispiele der Erfindung beschrieben und anhand der anliegenden Zeichnungen näher erläutert.
- Fig. 1
- zeigt eine schematische Ansicht eines ersten Ausführungsbeispiels eines erfindungsgemäßen Wärmetauschers.
- Fig. 2
- zeigt ein zweites Ausführungsbeispiel der Erfindung mit zwei Strömungswegen im zweiten Tauscherabschnitt.
- Fig. 3
- zeigt ein weiteres Ausführungsbeispiel der Erfindung mit zwei Strömungswegen im ersten Tauscherabschnitt.
- Fig.4 zeigt
- ein weiteres Ausführungsbeispiel der Erfindung mit zwei Strömungswegen in jedem der Tauscherabschnitle.
- Fig. 5
- zeigt ein weiteres Ausführungsbeispiel der Erfindung mit einem Fluidabzweig vom zweiten Tauscherabschnitt zum ersten Tauscherabschnitt.
- Fig. 6
- zeigt eine schematische Draufsicht auf eine Dichtung für einen erfindungsgemäßen Wärmetauscher.
- Fig. 1
- shows a schematic view of a first embodiment of a heat exchanger according to the invention.
- Fig. 2
- shows a second embodiment of the invention with two flow paths in the second exchanger section.
- Fig. 3
- shows a further embodiment of the invention with two flow paths in the first exchanger section.
- Fig.4 shows
- a further embodiment of the invention with two flow paths in each of the exchanger sections.
- Fig. 5
- shows a further embodiment of the invention with a fluid branch from the second exchanger section to the first exchanger section.
- Fig. 6
- shows a schematic plan view of a seal for a heat exchanger according to the invention.
Die beiden Tauscherabschnitte A, B sind jeweils unterschiedlichen Fluid kreisläufen zugeordnet, zum Beispiel einem Hochtemperaturkreislauf zur Kühlung eines Verbrennungsmotors für den Tauscherabschnitt B und einem Niedertemperatur-Kreislauf zur Kühlung eines indirekten Ladeluftkühlers und/oder Abgaskühlers. Hierzu weisen beide Sammler 1,2 jeweils zwei Öffnungen 1a, 1b, 2a, 2b zur Zuführung (1a, 2a) und Abführung (1b. 2b) der Fluide der beiden Fluidkreisläufe auf. In jedem der Sammler 1, 2 ist ein Trennglied 1c, 2c zur fluiddichten Abtrennung von den beiden Fluidkreisläufen zugeordneten Sammlerabschnitten vorgesehen.The two exchanger sections A, B are each associated with different fluid circuits, for example a high-temperature circuit for cooling an internal combustion engine for the exchanger section B and a low-temperature circuit for cooling an indirect charge air cooler and / or exhaust gas cooler. For this purpose, both
Wie aus
Die beiden Sammler 1, 2 umfassen jeweils ein Kastenteil (nicht dargestellt) mit einem Bodenabschnitt und darin vorgesehenen Durchzügen zur Aufnahme der Enden der Flachrohre 3 sowie ein aus Kunststoff geformtes Deckelteil (nicht dargestellt), wobei auf bekannte Weise zwischen dem Kastenteil aus Aluminium und dem Deckelteil aus Kunststoff eine umlaufende Dichtung 4 (siehe
Das Ausführungsbeispiel gemäß
Jeder der beiden Strömungswege B1, B2 des höheren zweiten Tauscherabschnitts B hat eine Höhe von einem Drittel der Gesamthöhe h = h1+h2 des Wärmetauschers bzw. die Hälfte der Höhe h2 des zweiten Tauscherabschnitts B. Es ist unmittelbar ersichtlich, dass die in
Bei dem Ausführungsbeispiel gemäß
Bei dem Beispiel nach
Es versteht sich, dass die Dichtung nach
Bei dem Ausführungsbeispiel gemäß
Sämtliche der vorstehend erläuterten Wärmetauscher können je nach Anforderungen als ein- oder mehrreihige Wärmetauscher ausgebildet sein, also in einer Durchströmungsrichtung mit kühlender Luft (Richtung senkrecht zur Zeichnungsebene gemäß
Es versteht sich, dass die einzelnen Merkmale der vorstehend beschriebenen Ausführungsbeispiele je nach Anforderungen sinnvoll miteinander kombiniert werden können.It is understood that the individual features of the embodiments described above can be usefully combined depending on the requirements.
Claims (11)
einen ersten Sammler (1) und einen zweiten, gegenüberliegend angeordneten Sammler (2), und
eine Mehrzahl von die Sammler (1, 2) verbindenden Tauscherrohren (3),
wobei die Tauscherrohre (3) in einer Hochrichtung insgesamt über eine Höhe h des Wärmetauschers gestapelt sind,
wobei eine erste Teilmenge (A) der Tauscherrohre (3) über eine erste Teilhöhe h1 gestapelt und einem ersten Tauscherabschnitt (A), insbesondere einem Niedertemperaturabschnitt, zugeordnet ist, und wobei eine zweite Teilmenge (B) der Tauscherrohre (3) in der Hochrichtung an die erste Teilmenge (A) angrenzend über eine zweite Teilhöhe h2 gestapelt ist und einem zweiten Tauscherabschnitt (B), insbesondere einem Hochtemperaturabschnitt zugeordnet ist,
wobei die beiden Tauscherabschnitte (A, B) jeweils einem ersten und einem zweiten Fluidkreislauf mit insbesondere verschiedenen Temperaturen zugeordnet sind,
dadurch gekennzeichnet,
dass das Verhältnis der ersten Teilhöhe zu der zweiten Teilhöhe h1:h2 zwischen etwa 0,2 und etwa 0,4 beträgt.Heat exchanger, in particular coolant radiator for a motor vehicle, comprising
a first collector (1) and a second, oppositely arranged collector (2), and
a plurality of exchanger tubes (3) connecting the collectors (1, 2),
wherein the exchanger tubes (3) are stacked in a vertical direction over a total height h of the heat exchanger,
wherein a first subset (A) of the exchanger tubes (3) is stacked over a first part height h1 and associated with a first exchanger section (A), in particular a low temperature section, and wherein a second subset (B) of the exchanger tubes (3) in the vertical direction the first subset (A) is stacked adjacent to a second sub-height h2 and is associated with a second exchanger section (B), in particular a high-temperature section,
wherein the two exchanger sections (A, B) are each associated with a first and a second fluid circuit, in particular with different temperatures,
characterized,
that the ratio of the first part of the height to the second part of the height h1: h2 is between about 0.2 and about 0.4.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910051184 DE102009051184A1 (en) | 2009-10-29 | 2009-10-29 | heat exchangers |
Publications (2)
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EP2317265A2 true EP2317265A2 (en) | 2011-05-04 |
EP2317265A3 EP2317265A3 (en) | 2015-03-11 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP10188607.5A Withdrawn EP2317265A3 (en) | 2009-10-29 | 2010-10-22 | Heat exchanger, in particular cooler for vehicle, with two exchanging portions, in particular low temperature and high temperature portion |
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EP (1) | EP2317265A3 (en) |
DE (1) | DE102009051184A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013092644A3 (en) * | 2011-12-19 | 2013-10-03 | Behr Gmbh & Co. Kg | Heat exchanger |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6281467B2 (en) * | 2014-01-14 | 2018-02-21 | 株式会社デンソー | Intercooler |
JP6409793B2 (en) * | 2016-02-11 | 2018-10-24 | 株式会社デンソー | Intercooler |
CN109072765B (en) * | 2016-03-31 | 2020-08-28 | 株式会社电装 | Intercooler |
JP6601384B2 (en) | 2016-12-26 | 2019-11-06 | 株式会社デンソー | Intercooler |
JP6708172B2 (en) | 2017-07-05 | 2020-06-10 | 株式会社デンソー | Intercooler |
DE102017219939A1 (en) * | 2017-11-09 | 2019-05-09 | Volkswagen Aktiengesellschaft | Cooling circuit for a drive unit of a motor vehicle |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8004560U1 (en) * | 1980-05-22 | Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart | Heat exchangers, in particular for a motor vehicle heating system | |
DE10102640A1 (en) * | 2001-01-20 | 2002-07-25 | Bayerische Motoren Werke Ag | Heat exchanger, for vehicle cooling systems, uses adjacent water and oil heat exchange channels for an improved heat exchange action |
US6793012B2 (en) * | 2002-05-07 | 2004-09-21 | Valeo, Inc | Heat exchanger |
US6904963B2 (en) * | 2003-06-25 | 2005-06-14 | Valeo, Inc. | Heat exchanger |
KR101202258B1 (en) * | 2006-02-13 | 2012-11-16 | 한라공조주식회사 | Integrated style heat exchanger |
US7779893B2 (en) * | 2006-08-22 | 2010-08-24 | Delphi Technologies, Inc. | Combination heat exchanger having an improved end tank assembly |
-
2009
- 2009-10-29 DE DE200910051184 patent/DE102009051184A1/en not_active Withdrawn
-
2010
- 2010-10-22 EP EP10188607.5A patent/EP2317265A3/en not_active Withdrawn
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None * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013092644A3 (en) * | 2011-12-19 | 2013-10-03 | Behr Gmbh & Co. Kg | Heat exchanger |
EP2795230A2 (en) * | 2011-12-19 | 2014-10-29 | Behr GmbH & Co. KG | Heat exchanger |
US10240826B2 (en) | 2011-12-19 | 2019-03-26 | Mahle International Gmbh | Heat exchanger |
Also Published As
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DE102009051184A1 (en) | 2011-05-05 |
EP2317265A3 (en) | 2015-03-11 |
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