EP1774240B1 - One-piece turbulence insert - Google Patents

One-piece turbulence insert Download PDF

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Publication number
EP1774240B1
EP1774240B1 EP05787294.7A EP05787294A EP1774240B1 EP 1774240 B1 EP1774240 B1 EP 1774240B1 EP 05787294 A EP05787294 A EP 05787294A EP 1774240 B1 EP1774240 B1 EP 1774240B1
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EP
European Patent Office
Prior art keywords
sections
turbulence insert
turbulence
automotive
cooler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP05787294.7A
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German (de)
French (fr)
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EP1774240A1 (en
Inventor
Steffen Brunner
Peter Geskes
Rainer Lutz
Ulrich Maucher
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Mahle Behr GmbH and Co KG
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Mahle Behr GmbH and Co KG
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Publication of EP1774240A1 publication Critical patent/EP1774240A1/en
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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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips

Definitions

  • the invention relates to a one-piece turbulence insert for a heat exchanger, in particular a radiator of a motor vehicle, having a substantially wave-shaped profile, wherein the turbulence insert has a plurality of sections with propagating in the same wave propagation wave profiles, which are arranged transversely to the wave propagation direction offset from each other.
  • the turbulence sheets are rolled, wherein the rolling direction in adjacent sections is in each case by a predeterminable angle to that of the adjacent section.
  • the respective inflow or outflow openings of one of the heat exchange media are arranged in the sections such that a flow from the inflow opening directly in the direction of the outflow opening a greater resistance than in a direction transverse thereto is opposed, so that a uniform distribution of the flow is effected in the associated hollow chamber.
  • the known turbulence sheets are composed of a plurality of rolled parts to provide portions with different wave propagation directions.
  • Gate-like openings are formed transversely to the rolling direction, but they are of different widths in adjacent rows, so that slot-like openings are formed in a known manner between adjacent gates, which allow flow through not only transversely through the gates but also in a direction perpendicular.
  • the object of the invention is a one-piece turbulence insert for a heat exchanger, in particular a radiator of a motor vehicle, having a substantially wave-shaped profile, wherein the turbulence insert has a plurality of sections with propagating in the same direction Wellenausbreitungsraum wave profiles, which are arranged transversely to the wave propagation direction to each other to create, which allows a better thermodynamic efficiency.
  • a one-piece turbulence insert according to claim 1.
  • a targeted distribution of a medium within a flow channel and / or targeted stiffening of a heat exchanger at locally different load states corresponding to the local load tensors and / or an optimization of the thermodynamic performance is made possible by a suitably shaped rib structure in individual or all flow channels of a heat exchanger .
  • the turbulence insert according to the invention is formed either completely or in segments in a combined stamping and deep-drawing process.
  • the structure of Turbulence insert can also be formed as a closed structure. Then the punching process can be omitted.
  • a preferred embodiment of the turbulence insert is characterized in that the deflection sections are arranged diagonally in the outer regions of the plate. This reduces the formation of dead water areas.
  • a further preferred embodiment of the turbulence insert is characterized in that the wave propagation direction in the deflecting sections changes by 90 degrees.
  • the transition region is preferably rounded.
  • FIG. 1 An exhaust gas cooler 1 of a commercial vehicle is shown in perspective.
  • the exhaust gas cooler 1 comprises a cooler housing 2, which essentially has the shape of an elongated cuboid.
  • a coolant inlet 3 and a coolant outlet 4 are attached.
  • an exhaust gas inlet 6 and an exhaust outlet 7 are attached.
  • exhaust gas may enter the radiator housing 2, which is guided through a plurality of exhaust gas flow channels in the longitudinal direction of the radiator housing 2 to the exhaust outlet 7.
  • Between two substantially plate-shaped exhaust gas flow channels is arranged in each case a substantially plate-shaped coolant flow channel.
  • the course of the coolant flow channels in the cooler housing 2 is indicated by arrows 11 to 14.
  • the coolant serves to cool the exhaust gas passed through the radiator housing 2 of the utility vehicle.
  • the region in which the flow passes through the radiator housing 2 substantially in the longitudinal direction is also referred to as the middle region.
  • the central area is bounded outwardly by an inlet area and an outlet area.
  • the flow in the inlet region, the flow, as indicated by arrows 18, must be deflected by 90 degrees.
  • the flow in the outlet area must be diverted by 90 degrees, as indicated by arrows 19.
  • FIG. 1 there is an increased danger at two points 22 that dead water areas will form.
  • turbulence inserts are arranged in the flow channels.
  • a turbulence insert 24 according to the invention according to an embodiment is shown in perspective and in section.
  • the turbulence insert 24 is formed from a rectangular plate in one piece of aluminum sheet.
  • a substantially triangular inlet region 25 is formed at one end of the turbulence insert 24, a substantially triangular inlet region 25 is formed.
  • six rectangular wave profile sections 27 to 32 are arranged side by side.
  • the wave profile sections 27 to 32 are corrugated in the longitudinal direction of the turbulence insert 24.
  • the wave profile section 27 comprises five wave peaks 34 to 38, which are arranged at the same distance from each other.
  • the wave profile section 28 comprises five wave peaks which are offset relative to the wave crests of the wave profile section 27.
  • the wave profile section 29 comprises three wave peaks, which are offset relative to the wave crests of the wave profile section 28.
  • the wave profile section 30 comprises three wave peaks which are offset with respect to the wave crests of the wave profile section 29.
  • the wave profile sections 31 and 32 each comprise a wave crest which is offset from the adjacent wave crest (s).
  • the wave profiles of the wave profile sections 27 to 32 are at both Open sides so that they can flow through transversely to the longitudinal direction of the plate.
  • a central region 40 In the center of the plate extends a central region 40 in which a plurality of rectangular wave profile sections 41 to 45 are arranged transversely to the longitudinal direction of the plate.
  • the wave profiles of the wave profile sections 41 to 45 extend transversely to the plate longitudinal direction and are offset from one another.
  • a section line 47 is indicated that the central region 40 is significantly larger than in the FIGS. 2 and 3 is shown.
  • the central region 40 is substantially in the shape of an isosceles trapezium.
  • the deflection region 50 comprises a plurality of deflection sections 52 to 55, in which the flow is deflected from the inlet region 25 to the central region 40 by 90 degrees.
  • an outlet region 60 is provided, which is formed symmetrically with respect to the inlet region 25.
  • a deflection region 65 is provided which has a multiplicity of deflection sections 66 to 68 and is formed symmetrically with respect to the deflection region 50.
  • the associated axis of symmetry extends transversely through the center of the turbulence insert 24.
  • the turbulence insert 70 is formed from a piece of aluminum sheet and has the shape of a rectangle.
  • the turbulence pad 70 is divided into an inlet region 71, a central region 72 and an outlet region 73.
  • the inlet portion 71 includes a plurality of wave profile portions 75 to 80 having the shape of rectangles.
  • the wave profile sections 75 to 80 each comprise two wave crests, which are arranged at a distance 82 from each other.
  • the waves in the wave profile section 75 propagate approximately at an angle of 65 degrees one longitudinal side of the turbulence insert 70.
  • the waves of the wave profile section 80 propagate approximately at an angle of 30 degrees to the associated longitudinal side of the turbulence insert 70. In between, the angle of the wave propagation direction to the longitudinal side of the turbulence pad 70 decreases from the outside toward the central region 72.
  • the central region 72 comprises three wave profile sections 84 to 86, which are rectangular.
  • the waves propagate in the wave profile sections 84 to 86 transversely to the longitudinal direction of the plate.
  • the peaks of the wave profile sections 84 to 86 are offset from one another.
  • the turbulence insert 70 is formed symmetrically with respect to an axis of symmetry across the center of the turbulence insert 70.

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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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Description

Die Erfindung betrifft eine einstückige Turbulenzeinlage für einen Wärmetauscher, insbesondere einen Kühler eines Kraftfahrzeugs, mit einem im Wesentlichen wellenförmigen Profil, wobei die Turbulenzeinlage mehrere Abschnitte mit sich in der gleichen Wellenausbreitungsrichtung ausbreitenden Wellenproflen aufweist, die quer zu der Wellenausbreitungsrichtung versetzt zueinander angeordnet sind.The invention relates to a one-piece turbulence insert for a heat exchanger, in particular a radiator of a motor vehicle, having a substantially wave-shaped profile, wherein the turbulence insert has a plurality of sections with propagating in the same wave propagation wave profiles, which are arranged transversely to the wave propagation direction offset from each other.

Herkömmliche Turbulenzeinlagen werden durch Walzen hergestellt. Aus der deutschen Patentschrift DE 197 09 601 C2 ist ein Öl/Kühlmittel-Kühler bekannt, der aus mehreren parallel übereinander angeordneten Platten besteht. Jede der Platten weist an zwei gegenüberliegenden Rändern jeweils eine Zu- und eine Abflussöffnung für ein Wärmetauschmedium auf. Die Platten bilden zwischen sich jeweils Hohlkammern, in denen gewellte Turbulenzbleche zur Erhöhung der Wärmeübertragung vorgesehen sind und die von je einem der an der Wärmeübertragung beteiligten Medien durchflossen sind. Die Turbulenzbleche sind in Abschnitte unterteilt, in denen eine unterschiedliche Ausrichtung des Verlaufs der Wellungen vorliegt. Die Abschnitte sind durch schräg verlaufende Trennschnitte gegeneinander abgesetzt. Die Turbulenzbleche sind gewalzt, wobei die Walzrichtung in benachbarten Abschnitten jeweils um einen vorgebbaren Winkel verdreht zu jener des benachbarten Abschnitts ist. Die jeweiligen Zu- oder Abflussöffnungen eines der Wärmetauschmedien sind so in den Abschnitten angeordnet, dass einer Strömung von der Zuflussöffnung unmittelbar in Richtung zu der Abflussöffnung ein größerer Widerstand als in einer Richtung quer dazu entgegengesetzt wird, so dass eine gleichmäßige Verteilung der Strömung in der zugeordneten Hohlkammer bewirkt ist. Die bekannten Turbulenzbleche sind aus mehreren gewalzten Teilen zusammengesetzt, um Abschnitte mit unterschiedlichen Wellenausbreitungsrichtungen zu schaffen. Quer zur Walzrichtung entstehen torartige Öffnungen, die aber in benachbarten Reihen unterschiedlich weit sind, so dass zwischen benachbarten Toren in bekannter Weise jeweils schlitzartige Öffnungen entstehen, die eine Durchströmung nicht nur quer durch die Tore, sondern auch in einer Richtung senkrecht zu ermöglichen.Conventional turbulence inserts are made by rolling. From the German patent DE 197 09 601 C2 is an oil / coolant cooler is known, which consists of several parallel stacked plates. Each of the plates has on two opposite edges in each case an inlet and a discharge opening for a heat exchange medium. The plates form between each hollow chambers, in which corrugated turbulence plates are provided to increase the heat transfer and which are flowed through by each of the participating in the heat transfer media. The turbulence sheets are divided into sections in which a different orientation of the course of the corrugations is present. The sections are offset by obliquely separating cuts against each other. The turbulence sheets are rolled, wherein the rolling direction in adjacent sections is in each case by a predeterminable angle to that of the adjacent section. The respective inflow or outflow openings of one of the heat exchange media are arranged in the sections such that a flow from the inflow opening directly in the direction of the outflow opening a greater resistance than in a direction transverse thereto is opposed, so that a uniform distribution of the flow is effected in the associated hollow chamber. The known turbulence sheets are composed of a plurality of rolled parts to provide portions with different wave propagation directions. Gate-like openings are formed transversely to the rolling direction, but they are of different widths in adjacent rows, so that slot-like openings are formed in a known manner between adjacent gates, which allow flow through not only transversely through the gates but also in a direction perpendicular.

Aufgabe der Erfindung ist es, eine einstückige Turbulenzeinlage für einen Wärmetauscher, insbesondere einen Kühler eines Kraftfahrzeugs, mit einem im Wesentlichen wellenförmigen Profil, wobei die Turbulenzeinlage mehrere Abschnitte mit sich in der gleichen Wellenausbreitungsrichtung ausbreitenden Wellenprofilen aufweist, die quer zu der Wellenausbreitungsrichtung versetzt zueinander angeordnet sind, zu schaffen, die einen besseren thermodynamischen Wirkungsgrad ermöglicht.The object of the invention is a one-piece turbulence insert for a heat exchanger, in particular a radiator of a motor vehicle, having a substantially wave-shaped profile, wherein the turbulence insert has a plurality of sections with propagating in the same direction Wellenausbreitungsrichtung wave profiles, which are arranged transversely to the wave propagation direction to each other to create, which allows a better thermodynamic efficiency.

Die Aufgabe ist durch eine einstückige Turbulenzeinlage gemäß Anspruch 1 gelöst. Durch die erfindungsgemäße Turbulenzeinlage wird eine gezielte Verteilung eines Mediums innerhalb eines Strömungskanals und/oder eine gezielte Versteifung eines Wärmetauschers bei lokal unterschiedlichen Lastzuständen entsprechend den lokalen Lasttensoren und/oder eine Optimierung der thermodynamischen Leistung durch eine geeignet ausgeformte Rippenstruktur in einzelnen oder allen Strömungskanälen eines Wärmetauschers ermöglicht. Die erfindungsgemäße Turbulenzeinlage wird in einem kombinierten Stanz- und Tiefziehprozess entweder ganz oder segmentweise ausgeformt. Die Struktur der Turbulenzeinlage kann auch als geschlossene Struktur ausgeformt sein. Dann kann der Stanzprozess entfallen.The object is achieved by a one-piece turbulence insert according to claim 1. By means of the turbulence insert according to the invention, a targeted distribution of a medium within a flow channel and / or targeted stiffening of a heat exchanger at locally different load states corresponding to the local load tensors and / or an optimization of the thermodynamic performance is made possible by a suitably shaped rib structure in individual or all flow channels of a heat exchanger , The turbulence insert according to the invention is formed either completely or in segments in a combined stamping and deep-drawing process. The structure of Turbulence insert can also be formed as a closed structure. Then the punching process can be omitted.

Ein bevorzugtes Ausführungsbeispiel der Turbulenzeinlage ist dadurch gekennzeichnet, dass die Umlenkabschnitte in den äußeren Bereichen der Platte diagonal angeordnet sind. Dadurch wird die Bildung von Totwassergebieten verringert.A preferred embodiment of the turbulence insert is characterized in that the deflection sections are arranged diagonally in the outer regions of the plate. This reduces the formation of dead water areas.

Ein weiteres bevorzugtes Ausführungsbeispiel der Turbulenzeinlage ist dadurch gekennzeichnet, dass sich die Wellenausbreitungsrichtung in den Umlenkabschnitten um 90 Grad ändert. Der Übergangsbereich ist vorzugsweise gerundet ausgebildet.A further preferred embodiment of the turbulence insert is characterized in that the wave propagation direction in the deflecting sections changes by 90 degrees. The transition region is preferably rounded.

Bei einem Kraftfahrzeugkühler, insbesondere einem Abgaskühler eines Nutzkraftfahrzeugs, ist die oben angegebene Aufgabe durch die Verwendung einer vorab beschriebenen Turbulenzeinlage gelöst.In a motor vehicle radiator, in particular an exhaust gas cooler of a commercial vehicle, the above-mentioned object is achieved by the use of a turbulence insert described above.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung verschiedene Ausführungsbeispiele im Einzelnen beschrieben sind. Dabei können die in den Ansprüchen und in der Beschreibung erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein. Es zeigen:

Figur 1
eine perspektivische Darstellung eines Abgaskühlers eines Nutzkraftfahrzeugs;
Figur 2
eine perspektivische Darstellung einer Turbulenzeinlage gemäß einem ersten Ausführungsbeispiel;
Figur 3
die Ansicht eines Schnitts durch die Turbulenzeinlage aus Figur 1 in halber Höhe;
Figur 4
eine Turbulenzeinlage in der Draufsicht gemäß einem weiteren Ausführungsbeispiel und
Figur 5
die Ansicht eines Schnitts durch die Turbulenzeinlage aus Figur 4 in halber Höhe.
Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, various embodiments are described in detail. The features mentioned in the claims and in the description may each be essential to the invention individually or in any desired combination. Show it:
FIG. 1
a perspective view of an exhaust gas cooler of a commercial vehicle;
FIG. 2
a perspective view of a turbulence insert according to a first embodiment;
FIG. 3
the view of a section through the turbulence insert FIG. 1 at half height;
FIG. 4
a turbulence insert in plan view according to another embodiment and
FIG. 5
the view of a section through the turbulence insert FIG. 4 halfway up.

In Figur 1 ist ein Abgaskühler 1 eines Nutzkraftfahrzeugs perspektivisch dargestellt. Der Abgaskühler 1 umfasst ein Kühlergehäuse 2, das im Wesentlichen die Gestalt eines länglichen Quaders aufweist. An der Oberseite des Kühlergehäuses 2 sind ein Kühlmitteleinlassstutzen 3 und ein Kühlmittelauslassstutzen 4 angebracht. An den Stirnseiten des Kühlergehäuses 2 sind ein Abgaseinlassstutzen 6 und ein Abgasauslassstutzen 7 angebracht. Durch den Abgasseinlassstutzen 6 kann Abgas in das Kühlergehäuse 2 eintreten, das durch eine Vielzahl von Abgasströmungskanälen in Längsrichtung des Kühlergehäuses 2 zu dem Abgasauslassstutzen 7 geführt wird. Zwischen zwei im Wesentlichen plattenförmigen Abgasströmungskanälen ist jeweils ein im Wesentlichen plattenförmiger Kühlmittelströmungskanal angeordnet. Der Verlauf der Kühlmittelströmungskanäle in dem Kühlergehäuse 2 ist durch Pfeile 11 bis 14 angedeutet. Das Kühlmittel dient dazu, das durch das Kühlergehäuse 2 hindurch geleitete Abgas des Nutzkraftfahrzeugs abzukühlen. Der Bereich, in dem die Strömung im Wesentlichen in Längsrichtung durch das Kühlergehäuse 2 verläuft, wird auch als mittlerer Bereich bezeichnet. Der mittlere Bereich wird nach außen hin durch einen Einlassbereich und einen Auslassbereich begrenzt. In dem Einlassbereich muss die Strömung, wie durch Pfeile 18 angedeutet ist, um 90 Grad umgelenkt werden. In ähnlicher Weise muss die Strömung in dem Auslassbereich um 90 Grad umgelenkt werden, wie durch Pfeile 19 angedeutet ist. In Figur 1 besteht an zwei Stellen 22 eine erhöhte Gefahr, dass sich Totwassergebiete bilden. Unter anderem um die Bildung solcher Totwassergebiete zu verhindern, sind in den Strömungskanälen Turbulenzeinlagen angeordnet.In FIG. 1 An exhaust gas cooler 1 of a commercial vehicle is shown in perspective. The exhaust gas cooler 1 comprises a cooler housing 2, which essentially has the shape of an elongated cuboid. At the top of the radiator housing 2, a coolant inlet 3 and a coolant outlet 4 are attached. At the end faces of the radiator housing 2, an exhaust gas inlet 6 and an exhaust outlet 7 are attached. Through the exhaust inlet 6, exhaust gas may enter the radiator housing 2, which is guided through a plurality of exhaust gas flow channels in the longitudinal direction of the radiator housing 2 to the exhaust outlet 7. Between two substantially plate-shaped exhaust gas flow channels is arranged in each case a substantially plate-shaped coolant flow channel. The course of the coolant flow channels in the cooler housing 2 is indicated by arrows 11 to 14. The coolant serves to cool the exhaust gas passed through the radiator housing 2 of the utility vehicle. The region in which the flow passes through the radiator housing 2 substantially in the longitudinal direction is also referred to as the middle region. The central area is bounded outwardly by an inlet area and an outlet area. In the inlet region, the flow, as indicated by arrows 18, must be deflected by 90 degrees. Similarly, the flow in the outlet area must be diverted by 90 degrees, as indicated by arrows 19. In FIG. 1 there is an increased danger at two points 22 that dead water areas will form. Among other things, to prevent the formation of such dead water areas, turbulence inserts are arranged in the flow channels.

In den Figuren 2 und 3 ist eine erfindungsgemäße Turbulenzeinlage 24 gemäß einem Ausführungsbeispiel perspektivisch und im Schnitt dargestellt. Die Turbulenzeinlage 24 ist aus einer rechteckförmigen Platte in einem Stück aus Aluminiumblech gebildet. An einem Ende der Turbulenzeinlage 24 ist ein im Wesentlichen dreieckiger Einlassbereich 25 ausgebildet. In dem Einlassbereich 25 sind sechs rechteckige Wellenprofilabschnitte 27 bis 32 nebeneinander angeordnet. Die Wellenprofilabschnitte 27 bis 32 sind in Längsrichtung der Turbulenzeinlage 24 gewellt. Der Wellenprofilabschnitt 27 umfasst fünf Wellenberge 34 bis 38, die im gleichen Abstand zueinander angeordnet sind. Der Wellenprofilabschnitt 28 umfasst fünf Wellenberge, die gegenüber den Wellenbergen des Wellenprofilabschnitts 27 versetzt angeordnet sind. Der Wellenprofilabschnitt 29 umfasst drei Wellenberge, die gegenüber den Wellenbergen des Wellenprofilabschnitts 28 versetzt angeordnet sind. Der Wellenprofilabschnitt 30 umfasst drei Wellenberge, die gegenüber den Wellenbergen des Wellenprofilabschnitts 29 versetzt angeordnet sind. Die Wellenprofilabschnitte 31 und 32 umfassen jeweils einen Wellenberg, der versetzt zu dem oder den benachbarten Wellenbergen angeordnet ist. Die Wellenprofile der Wellenprofilabschnitte 27 bis 32 sind an beiden Seiten offen, so dass sie quer zur Plattenlängsrichtung durchströmt wenden können.In the FIGS. 2 and 3 a turbulence insert 24 according to the invention according to an embodiment is shown in perspective and in section. The turbulence insert 24 is formed from a rectangular plate in one piece of aluminum sheet. At one end of the turbulence insert 24, a substantially triangular inlet region 25 is formed. In the inlet region 25, six rectangular wave profile sections 27 to 32 are arranged side by side. The wave profile sections 27 to 32 are corrugated in the longitudinal direction of the turbulence insert 24. The wave profile section 27 comprises five wave peaks 34 to 38, which are arranged at the same distance from each other. The wave profile section 28 comprises five wave peaks which are offset relative to the wave crests of the wave profile section 27. The wave profile section 29 comprises three wave peaks, which are offset relative to the wave crests of the wave profile section 28. The wave profile section 30 comprises three wave peaks which are offset with respect to the wave crests of the wave profile section 29. The wave profile sections 31 and 32 each comprise a wave crest which is offset from the adjacent wave crest (s). The wave profiles of the wave profile sections 27 to 32 are at both Open sides so that they can flow through transversely to the longitudinal direction of the plate.

In der Mitte der Platte erstreckt sich ein mittlerer Bereich 40, in dem eine Vielzahl von rechteckigen Wellenprofilabschnitten 41 bis 45 quer zur Plattenlängsrichtung angeordnet sind. Die Wellenprofile der Wellenprofilabschnitte 41 bis 45 breiten sich quer zur Plattenlängsrichtung aus und sind versetzt zueinander angeordnet. Durch eine Schnittlinie 47 ist angedeutet, dass der mittlere Bereich 40 deutlich größer ist als es in den Figuren 2 und 3 dargestellt ist. Der mittlere Bereich 40 hat im Wesentlichen die Gestalt eines gleichschenkligen Trapezes.In the center of the plate extends a central region 40 in which a plurality of rectangular wave profile sections 41 to 45 are arranged transversely to the longitudinal direction of the plate. The wave profiles of the wave profile sections 41 to 45 extend transversely to the plate longitudinal direction and are offset from one another. By a section line 47 is indicated that the central region 40 is significantly larger than in the FIGS. 2 and 3 is shown. The central region 40 is substantially in the shape of an isosceles trapezium.

Zwischen dem Einlassbereich 25 und dem mittleren Bereich 40 ist ein im Wesentlichen diagonal angeordneter Umlenkbereich 50 vorgesehen. Der Umlenkbereich 50 umfasst eine Vielzahl von Umlenkabschnitten 52 bis 55, in denen die Strömung von dem Einlassbereich 25 zu dem mittleren Bereich 40 um 90 Grad umgelenkt wird.Between the inlet region 25 and the middle region 40, a substantially diagonally arranged deflection region 50 is provided. The deflection region 50 comprises a plurality of deflection sections 52 to 55, in which the flow is deflected from the inlet region 25 to the central region 40 by 90 degrees.

An dem dem Einlassbereich 25 entgegengesetzen Ende der Turbulenzeinlage 24 ist ein Auslassbereich 60 vorgesehen, der symmetrisch zu dem Einlassbereich 25 ausgebildet ist. Zwischen dem Auslassbereich 60 und dem mittleren Bereich 40 ist ein Umlenkbereich 65 vorgesehen, der eine Vielzahl von Umlenkabschnitten 66 bis 68 aufweist, und symmetrisch zu dem Umlenkbereich 50 ausgebildet ist. Die zugehörige Symmetrieachse verläuft quer durch die Mitte der Turbulenzeinlage 24.At the end of the turbulence insert 24 opposite the inlet region 25, an outlet region 60 is provided, which is formed symmetrically with respect to the inlet region 25. Between the outlet region 60 and the middle region 40, a deflection region 65 is provided which has a multiplicity of deflection sections 66 to 68 and is formed symmetrically with respect to the deflection region 50. The associated axis of symmetry extends transversely through the center of the turbulence insert 24.

In den Figuren 4 und 5 ist eine weitere, nicht beansprüchte Turbulenzeinlage 70 in zwei verschiedenen Ansichten dargestellt. Die Turbulenzeinlage 70 ist aus einem Stück Aluminiumblech gebildet und hat die Form eines Rechtecks. Die Turbulenzeinlage 70 ist in einen Einlassbereich 71, einen mittleren Bereich 72 und einen Auslassbereich 73 unterteilt. Der Einlassbereich 71 umfasst eine Vielzahl von Wellenprofilabschnitten 75 bis 80, welche die Form von Rechtecken aufweisen. Die Wellenprofilabschnitte 75 bis 80 umfassen jeweils zwei Wellenberge, die in einem Abstand 82 zueinander angeordnet sind. Die Wellen in dem Wellenprofilabschnitt 75 breiten sich etwa in einem Winkel von 65 Grad zu einer Längsseite der Turbulenzeinlage 70 aus. Die Wellen des Wellenprofilabschnitts 80 breiten sich etwa in einem Winkel von 30 Grad zu der zugehörigen Längsseite der Turbulenzeinlage 70 aus. Dazwischen verringert sich der Winkel der Wellenausbreitungsrichtung zu der Längsseite der Turbulenzeinlage 70 von außen zu dem mittleren Bereich 72 hin.In the FIGS. 4 and 5 is another, unclaimed turbulence insert 70 shown in two different views. The turbulence insert 70 is formed from a piece of aluminum sheet and has the shape of a rectangle. The turbulence pad 70 is divided into an inlet region 71, a central region 72 and an outlet region 73. The inlet portion 71 includes a plurality of wave profile portions 75 to 80 having the shape of rectangles. The wave profile sections 75 to 80 each comprise two wave crests, which are arranged at a distance 82 from each other. The waves in the wave profile section 75 propagate approximately at an angle of 65 degrees one longitudinal side of the turbulence insert 70. The waves of the wave profile section 80 propagate approximately at an angle of 30 degrees to the associated longitudinal side of the turbulence insert 70. In between, the angle of the wave propagation direction to the longitudinal side of the turbulence pad 70 decreases from the outside toward the central region 72.

Der mittlere Bereich 72 umfasst drei Wellenprofilabschnitte 84 bis 86, die rechteckig ausgebildet sind. Die Wellen breiten sich in den Wellenprofilabschnitten 84 bis 86 quer zur Plattenlängsrichtung aus. Die Wellenberge der Wellenprofilabschnitte 84 bis 86 sind versetzt zueinander angeordnet. Die Turbulenzeinlage 70 ist, bezogen auf eine Symmetrieachse quer durch die Mitte der Turbulenzeinlage 70, symmetrisch ausgebildet.The central region 72 comprises three wave profile sections 84 to 86, which are rectangular. The waves propagate in the wave profile sections 84 to 86 transversely to the longitudinal direction of the plate. The peaks of the wave profile sections 84 to 86 are offset from one another. The turbulence insert 70 is formed symmetrically with respect to an axis of symmetry across the center of the turbulence insert 70.

Claims (8)

  1. A one-piece turbulence insert (24) for a heat exchanger (1), in particular an automotive cooler, which has a substantially corrugated profile, the turbulence insert (24) comprising a plurality of sections (41-45) with corrugation profiles which propagate in the same direction of propagation of the corrugations and are offset to one another transversely to the direction of propagation of the corrugations, wherein the turbulence insert (24) comprises a plurality of sections (27-32, 41-45) which have corrugation profiles propagating in different directions of propagation of the corrugations, wherein the turbulence insert (24) is formed by a substantially rectangular plate which comprises a central portion (40) having a plurality of sections (41-45) with corrugation profiles which propagate transversely to the longitudinal direction of the plate, and two outer portions (25, 60) having a plurality of sections (27-32) with corrugation profiles which propagate in the longitudinal direction of the plate, wherein deflection sections (52-55, 66-68) are formed between the corrugated profile sections (27-32, 41-45) which propagate transversely and longitudinally, wherein the flow in the deflection sections (52-55, 66-68) is deflected by 90° degrees.
  2. The turbulence insert (24) as claimed in claim 1, characterised in that the deflection sections (52-55, 66-68) are arranged diagonally in the outer portions of the plate.
  3. The turbulence insert (24) as claimed in claim 2, characterised in that the direction of propagation of the corrugations changes in the deflection sections (52-55, 66-68) by 70 to 110 degrees, preferably by 85 to 95 degrees, especially preferably by 90 degrees.
  4. The turbulence insert (24) as claimed in one of the preceding claims, characterised in that a fluid can flow successively through the sections (27-32) which have corrugation profiles propagating in different directions of propagation of the corrugations.
  5. An automotive heat exchanger, in particular a charge air cooler, an exhaust gas cooler or a coolant evaporator or condenser, having a turbulence insert (24) as claimed in one of the preceding claims.
  6. The automotive heat exchanger as claimed in claim 5, wherein the automotive heat exchanger is formed by an automotive cooler, characterised in that the turbulence insert (24) is fixed in a flow channel in a form-fitting manner.
  7. The automotive cooler as claimed in one of the preceding claims 5 or 6, characterised in that the turbulence insert (24) is soldered, welded or bonded in a flow channel.
  8. The automotive cooler as claimed in one of the preceding claims 5 to 7, characterised in that the flow channel is formed by a tube or by two plates placed or stacked upon one another, or between two tubes.
EP05787294.7A 2004-07-30 2005-08-01 One-piece turbulence insert Not-in-force EP1774240B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004037391 2004-07-30
PCT/EP2005/008307 WO2006013075A1 (en) 2004-07-30 2005-08-01 One-piece turbulence insert

Publications (2)

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EP1774240A1 EP1774240A1 (en) 2007-04-18
EP1774240B1 true EP1774240B1 (en) 2016-02-17

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Application Number Title Priority Date Filing Date
EP05787294.7A Not-in-force EP1774240B1 (en) 2004-07-30 2005-08-01 One-piece turbulence insert

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US (1) US20080202731A1 (en)
EP (1) EP1774240B1 (en)
JP (1) JP5100379B2 (en)
WO (1) WO2006013075A1 (en)

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Also Published As

Publication number Publication date
JP2008508496A (en) 2008-03-21
US20080202731A1 (en) 2008-08-28
JP5100379B2 (en) 2012-12-19
EP1774240A1 (en) 2007-04-18
WO2006013075A1 (en) 2006-02-09

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