EP0992756B1 - Heat exchanger, more particularly for gases and liquids - Google Patents

Heat exchanger, more particularly for gases and liquids Download PDF

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Publication number
EP0992756B1
EP0992756B1 EP99119392A EP99119392A EP0992756B1 EP 0992756 B1 EP0992756 B1 EP 0992756B1 EP 99119392 A EP99119392 A EP 99119392A EP 99119392 A EP99119392 A EP 99119392A EP 0992756 B1 EP0992756 B1 EP 0992756B1
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EP
European Patent Office
Prior art keywords
heat
heat exchanger
exchanger
flow ducts
medium
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
Application number
EP99119392A
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German (de)
French (fr)
Other versions
EP0992756A3 (en
EP0992756A2 (en
Inventor
Roland Dipl.-Ing. Strähle
Viktor Dipl.-Ing. Brost
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Modine Manufacturing Co
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Modine Manufacturing Co
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Publication date
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Publication of EP0992756A2 publication Critical patent/EP0992756A2/en
Publication of EP0992756A3 publication Critical patent/EP0992756A3/en
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Publication of EP0992756B1 publication Critical patent/EP0992756B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • 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
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0082—Charged air coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0221—Header boxes or end plates formed by stacked elements

Definitions

  • This heat exchanger provided as an exhaust gas heat exchanger, is off EP 677 715 A1 known.
  • Shell-shaped heat exchanger plates are in this Document provided when the exhaust gas is cooled with cooling air. In in this case are those formed by the bowl-shaped heat exchanger plates Flow channels for the exhaust gas arranged at a distance and at these distances there are fins through which the cooling air flows freely. If, on the other hand, cooling is with a liquid, for example with cooling water, provided, then the flow channels for both media are not using deformed plates formed between rods or spacers for Have formation of the flow channels. This design can be expensive be viewed because the number of individual parts is very high.
  • a water-cooled intercooler which consists of bowl-shaped heat exchanger plates is constructed.
  • the heat exchanger plate package is enclosed by a housing.
  • the flow channels for the charge air are each by two shell-shaped heat exchanger plates forming a pair formed, or, each flow channel for the charge air is from included a couple. There are gaps between the pairs that Represent flow channels for the cooling water.
  • the heat exchanger plates have in this respect a certain similarity to those in the first-mentioned document.
  • the flow channels for cooling water are not from the heat exchanger plates enclosed, but open to the housing, so that the cooling water between the distances mentioned but also between the heat exchanger plates and can flow to the housing.
  • Have heat exchangers with a housing a higher weight and occupy a little more space, which is considered a disadvantage can be.
  • the object of the invention is that in the preamble of claim 1 described heat exchanger for cooling the gas with a liquid simple way to build with bowl-shaped heat exchanger plates and to do without the outer housing and the number of components low to keep.
  • the stack of bowl-shaped heat exchanger plates separate flow channels for both agents include that the heat exchanger plates have a circumferential shape, which the inlet and the outlet opening for one means include that the circumferential Characteristics of one heat exchanger plate with the characteristics of the next Heat exchanger plate is connected and both inside of the rotating one Expression of enclosed area arranged parallel flow channels separates from each other and towards the outside and that the flow channels for the other means at least outside the circulating form open a collecting room.
  • the heat exchanger according to the invention can without an outer housing be carried out and is therefore less material or lighter produced. In comparison with heat exchangers built in rod-plate construction there are far fewer individual parts, which means that the manufacturing process is simplified.
  • the all-round expression is in the embossing or Thermoforming tool incorporated and does not require an additional operation in plate making.
  • the circumferential shape has a suitable cross-sectional shape.
  • it is approximately U-shaped and has sections that are close to the Edge of the heat exchanger plates run and further sections that the heat exchanger plates cross. Because the base section of the U-shaped shape when stacking the heat exchanger plates with the same base section of the next one Heat exchanger plate comes to the plant, each horizontal, d. H. connecting surfaces running parallel to the plane of the heat exchanger plates formed between the individual plates, which is an excellent Allow solder connection.
  • the collecting spaces can have a tube sheet which corresponds to the cross section of the Has flow channels adapted openings, or the flow channels can be widened at the ends and connected to the longitudinal walls, whereby the known design is realized without the use of tube sheets can be.
  • both identical heat exchanger plates can be used Apply what is very beneficial, but it can also be required to stack the stack with two different sets of heat exchanger plates to build.
  • the collection and the distribution space are preferably formed by pot-like depressions around the openings in the stacked heat exchanger plates trained as is known in and of itself.
  • the invention also includes sleeves that replace the pot-like depressions can be used.
  • the flow channels for the liquid coolant preferably have support knobs, which are connected with such knobs of the adjacent plate.
  • these knobs can also be replaced by inner inserts.
  • inside bets are preferably arranged in the flow channels for the gas.
  • the shape of the inner inserts depends on the respective application. Should exhaust gas to be cooled, you will choose indoor inserts that can form as few deposits as possible, which have smooth surfaces. In the case of charge air, internal inserts can be provided for more turbulence and provide even better heat exchange.
  • the inner inserts are complete in another inventive embodiment been left out.
  • the heat exchanger plates were alternating arranged first and second beads.
  • the second Beads can have interruptions, so that only one row Support knobs remain.
  • An inventive embodiment also has cover plates that are very provide flexible connection positions of the sockets because the sockets can be on any Locations of the connection plates can be.
  • the exhaust gas heat exchanger consists of a suitable stainless steel. All Connections between the individual parts of the exhaust gas heat exchanger are preferred made by soldering.
  • the collecting space 4 and the distribution space 4 on opposite Sides 12 of the exhaust gas heat exchanger are arranged in projecting areas 13.
  • two types of heat exchanger plates 1 are required here to form the flow channels 5 and 7.
  • the flow channels 5 are for water W provided and the flow channels 7 for exhaust gas G.
  • the heat exchanger plates 1 are connected in pairs at their peripheral edges 2. Moreover they are connected to their circumferential features 8, which are in plan view has been shown as a thick line and the one area of the exhaust gas heat exchanger which is smaller than the total area of the heat exchanger plates 1 or smaller than the area enclosed by the edge 10.
  • the of the circumferential shape 8 enclosed area closes the inlet openings 3 and the outlet openings 3 for the cooling water and consists of in the Near the edge 10 extending sections 9 and sections 11, which the Cross heat exchanger plates 1. This crossing can be in any Angle to the longitudinal axis of the heat exchanger plates 1 and is in Fig. 1st arranged perpendicular to the longitudinal axis.
  • the circumferential shape 8 is here U-shaped in the heat exchanger plates 1, as shown in Fig. 1a and 1b show. Fig. 1b also shows that the flow channels 5 for the cooling water W end at the circumferential shape 8, but the flow channels 7 continued for the exhaust gas G into the collecting space 6 or into the tube sheet 15 are.
  • the sketch 1c shows the cross section of the flow channels 7 in this Area.
  • the ends of the flow channels 7 are widened so that the Longitudinal walls 16 of the adjacent channels 7 can be connected to one another, whereby the tube sheet 15 can be omitted because a directly in the collecting space 6 There is an opening which can accommodate all flow channels 7.
  • Nubs 20 are shown on the top heat exchanger plate of FIG. 1 Service. These knobs 20 can also be found in FIG. 3, which have the section C - C Fig. 1 shows, with the difference that the cover plate 22 is shown in section C - C was that delimited a space 24 to the first heat exchanger plate 1.
  • the knobs 20 extend into the flow channel 5, in the water W flows.
  • the knobs 20 of the one heat exchanger plate 1 are with the knobs 20 of the next heat exchanger plate 1 connected. 3 also goes the formation of the collection or distribution rooms 4.
  • Fig. 4 shows a view from the direction of a collecting space 6 for the Exhaust gas G.
  • a part of the tube sheet 15 can be seen, in which the flow channels 7 open with inserts 17.
  • the connection to the exhaust pipe, not shown can be made here by means of a clamping ring 21.
  • the side view of the exhaust gas heat exchanger shown in FIG. 2 shows a another embodiment in which the inlet and outlet 19 for the Water W arranged on a common side 12 of the exhaust gas heat exchanger have been in the drawing on the back, not shown.
  • the area B emerges, that of the circumferential Expression 8 is determined.
  • Within this area B run Flow channels 5 and 7 in parallel. Outside of this area, the Flow channels 7 in the collecting spaces 6.
  • the flow channels 5 end there, where the peripheral shape 8 crosses the heat exchanger plates 1.

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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)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The heat exchanger plate (1) are so connected that they enclose collection and distribution spaces (4) for one of the media and its horizontal flow channels (5). In the collection space (6) issue flow channels for the second medium. The shell-shaped plates are stacked and identically brought together and enclose the flow channels for the second medium. The plates have an all-round molding (8) which has at least one inlet and one outlet aperture (3) for the one medium. The one molding of one plate is connected with that of the next plate. It is possible for two types of heat exchanger plates to be used and for the collection space (4) on one side (12) and the distributor space to be arranged on the opposite side of the heat exchanger.

Description

Die Erfindung betrifft einen Wärmetauscher für den Wärmeaustausch zwischen einem Gas und einer Flüssigkeit, beispielsweise mit Wasser gekühlter Ladeluft - oder Abgaswärmetauscher, umfassend einen Stapel aus Wärmetauscherplatten, die spiegelbildlich zusammengefügt und am Randflansch und um ihre auf einer Linie liegenden Öffnungen so verbunden sind, daß sie Sammel-und Verteilerräume für ein erstes Mittel und dessen Strömungskanäle in sich einschließen sowie mit Sammelräumen, in denen die Strömungskanäle für das zweite Mittel münden.The invention relates to a heat exchanger for heat exchange between a gas and a liquid, for example charge air cooled with water - or exhaust gas heat exchanger comprising a stack of heat exchanger plates, which are put together in mirror image and on the edge flange and around their on one Line lying openings are connected so that they are collection and distribution rooms include for a first agent and its flow channels as well as with collecting rooms in which the flow channels for the second agent lead.

Dieser Wärmetauscher, vorgesehen als Abgaswärmetauscher, ist aus EP 677 715 A1 bekannt. Schalenförmige Wärmetauscherplatten werden in diesem Dokument dann vorgesehen, wenn das Abgas mit Kühlluft gekühlt wird. In diesem Fall sind die durch die schalenförmigen Wärmetauscherplatten gebildeten Strömungskanäle für das Abgas auf Abstand angeordnet und in diesen Abständen befinden sich Lamellen die von der Kühlluft frei durchströmt werden. Ist hingegen die Kühlung mit einer Flüssigkeit, beispielsweise mit Kühlwasser, vorgesehen, dann werden die Strömungskanäle für beide Medien mittels nicht verformter Platten gebildet, die zwischen sich Stäbe oder Distanzstücke zur Bildung der Strömungskanäle aufweisen. Diese Bauweise kann als aufwendig angesehen werden, weil die Zahl der Einzelteile sehr hoch ist.This heat exchanger, provided as an exhaust gas heat exchanger, is off EP 677 715 A1 known. Shell-shaped heat exchanger plates are in this Document provided when the exhaust gas is cooled with cooling air. In in this case are those formed by the bowl-shaped heat exchanger plates Flow channels for the exhaust gas arranged at a distance and at these distances there are fins through which the cooling air flows freely. If, on the other hand, cooling is with a liquid, for example with cooling water, provided, then the flow channels for both media are not using deformed plates formed between rods or spacers for Have formation of the flow channels. This design can be expensive be viewed because the number of individual parts is very high.

Aus JP 02 277920 ist ein wassergekühler Ladeluftkühler bekannt, der aus schalenförmigen Wärmetauscherplatten aufgebaut ist. Das Paket der Wärmetauscherplatten ist von einem Gehäuse eingeschlossen. Die Strömungskanäle für die Ladeluft sind jeweils durch zwei ein Paar bildende schalenförmige Wärmetauscherplatten gebildet, bzw, jeder Strömungskanal für die Ladeluft ist von einem Paar eingeschlossen. Zwischen den Paaren sind Abstände vorhanden, die Strömungskanäle für das Kühlwasser darstellen. (Die Wärmetauscherplatten haben insofern eine gewisse Ähnlichkeit mit denen im zuerst genannten Dokument. ) Die Strömungskanäle für Kühlwasser sind nicht von den Wärmetauscherplatten eingeschlossen, sondern zum Gehäuse hin offen, so dass das Kühlwasser zwischen den erwähnten Abständen aber auch zwischen den Wärmetauscherplatten und dem Gehäuse strömen kann. Wärmetauscher mit einem Gehäuse besitzen ein höheres Gewicht und belegen etwas mehr Bauraum, was als nachteilig angesehen werden kann. From JP 02 277920 a water-cooled intercooler is known which consists of bowl-shaped heat exchanger plates is constructed. The heat exchanger plate package is enclosed by a housing. The flow channels for the charge air are each by two shell-shaped heat exchanger plates forming a pair formed, or, each flow channel for the charge air is from included a couple. There are gaps between the pairs that Represent flow channels for the cooling water. (The heat exchanger plates have in this respect a certain similarity to those in the first-mentioned document. ) The flow channels for cooling water are not from the heat exchanger plates enclosed, but open to the housing, so that the cooling water between the distances mentioned but also between the heat exchanger plates and can flow to the housing. Have heat exchangers with a housing a higher weight and occupy a little more space, which is considered a disadvantage can be.

Die Aufgabe der Erfindung besteht darin, den im Oberbegriff des Anspruchs 1 beschriebenen Wärmetauscher zur Kühlung des Gases mit einer Flüssigkeit auf einfache Art und Weise mit schalenförmigen Wärmetauscherplatten aufzubauen und dabei auf das äußere Gehäuse zu verzichten und die Zahl der Bauteile gering zu halten.The object of the invention is that in the preamble of claim 1 described heat exchanger for cooling the gas with a liquid simple way to build with bowl-shaped heat exchanger plates and to do without the outer housing and the number of components low to keep.

Diese Aufgabe wurde erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst.This object was achieved by the features of the claim 1 solved.

Es ist vorgesehen, daß der Stapel schalenförmiger Wärmetauscherplatten getrennte Strömungskanäle für beide Mittel in sich einschließt, daß die Wärmetauscherplatten eine umlaufende Ausprägung aufweisen, die die Einlaß-und die Auslaßöffnung für das eine Mittel umfassen, daß die umlaufende Ausprägung der einen Wärmetauscherplatte mit der Ausprägung der nächsten Wärmetauscherplatte verbunden ist und beide innerhalb des von der umlaufenden Ausprägung eingeschlossenen Bereiches angeordneten parallelen Strömungskanäle voneinander und nach außen hin trennt und daß die Strömungskanäle für das andere Mittel außerhalb der umlaufenden Ausprägung in wenigstens einen Sammelraum münden.It is contemplated that the stack of bowl-shaped heat exchanger plates separate flow channels for both agents include that the heat exchanger plates have a circumferential shape, which the inlet and the outlet opening for one means include that the circumferential Characteristics of one heat exchanger plate with the characteristics of the next Heat exchanger plate is connected and both inside of the rotating one Expression of enclosed area arranged parallel flow channels separates from each other and towards the outside and that the flow channels for the other means at least outside the circulating form open a collecting room.

Weil die umlaufende Ausprägung beide Arten Strömungskanäle auch nach außen hin abschottet, kann der erfindungsgemäße Wärmetauscher ohne äußeres Gehäuse ausgeführt werden und ist deshalb mit weniger Materialeinsatz bzw. leichter herstellbar. Im Vergleich mit Wärmetauschern, die in Stab-Platten-Bauweise aufgebaut sind, sind wesentlich weniger Einzelteile vorhanden, wodurch der Fertigungsprozeß vereinfacht wird. Die umlaufende Ausprägung wird in das Prägeoder Tiefziehwerkzeug eingearbeitet und erfordert keinen zusätzlichen Arbeitsgang bei der Plattenherstellung.Because the circumferential form both types of flow channels also to the outside seals off, the heat exchanger according to the invention can without an outer housing be carried out and is therefore less material or lighter produced. In comparison with heat exchangers built in rod-plate construction there are far fewer individual parts, which means that the manufacturing process is simplified. The all-round expression is in the embossing or Thermoforming tool incorporated and does not require an additional operation in plate making.

Die umlaufende Ausprägung weist eine geeignete Querschnittsform auf. Vorzugsweise ist sie etwa u-förmig ausgebildet und besitzt Abschnitte, die in der Nähe des Randes der Wärmetauscherplatten verlaufen und weitere Abschnitte, die die Wärmetauscherplatten kreuzen. Weil der Basisabschnitt der u-förmigen Ausprägung beim Stapeln der Wärmetauscherplatten mit demselben Basisabschnitt der nächsten Wärmetauscherplatte zur Anlage kommt, werden jeweils horizontale, d. h. parallel zu der Ebene der Wärmetauscherplatten verlaufende Verbindungsflächen zwischen den einzelnen Platten gebildet, die eine exzellente Lötverbindung ermöglichen. The circumferential shape has a suitable cross-sectional shape. Preferably it is approximately U-shaped and has sections that are close to the Edge of the heat exchanger plates run and further sections that the heat exchanger plates cross. Because the base section of the U-shaped shape when stacking the heat exchanger plates with the same base section of the next one Heat exchanger plate comes to the plant, each horizontal, d. H. connecting surfaces running parallel to the plane of the heat exchanger plates formed between the individual plates, which is an excellent Allow solder connection.

Die Kreuzungsstelle beendet die einen Strömungskanäle. Die anderen Strömungs kanäle gehen jedoch über diese Kreuzungsstelle hinaus und münden vorzugsweise an beiden gegenüberliegenden Enden in den ihnen zugeordneten Sammelräumen. Selbstverständlich gibt es Ausführungsformen mit nur an einem Ende angeordneten Sammelkasten, mit Trennwand, Einlaß und Auslaß und am anderen Ende angeordneten Umlenkkasten.The crossing point ends one of the flow channels. The other flow however, channels go beyond this crossing point and preferably open out at both opposite ends in the collection rooms assigned to them. Of course, there are embodiments with only one end arranged Collection box, with partition, inlet and outlet and at the other Deflection box arranged at the end.

Die Sammelräume können einen Rohrboden aufweisen, der dem Querschnitt der Strömungskanäle angepaßte Öffnungen aufweist, oder die Strömungskanäle können an den Enden aufgeweitet und an den Längswänden verbunden sein, wodurch die an sich bekannte Ausführung ohne Verwendung von Rohrböden realisiert werden kann. The collecting spaces can have a tube sheet which corresponds to the cross section of the Has flow channels adapted openings, or the flow channels can be widened at the ends and connected to the longitudinal walls, whereby the known design is realized without the use of tube sheets can be.

In Abhängigkeit von der Lage der Anschlüsse können sowohl baugleiche Wärmetauscherplatten Anwendung finden, was sehr vorteilhaft ist, es kann aber auch erforderlich sein, den Stapel mit zwei verschiedenen Sätzen von Wärmetauscherplatten zu bilden.Depending on the position of the connections, both identical heat exchanger plates can be used Apply what is very beneficial, but it can also be required to stack the stack with two different sets of heat exchanger plates to build.

Der Sammel-und der Verteilerraum werden vorzugsweise durch topfartige Vertiefungen um die Öffnungen herum in den aufeinandergestapelten Wärmetauscherplatten ausgebildet, wie das an und für sich bekannt ist. Im Rahmen der vorliegenden Erfindung liegen jedoch auch Hülsen, die anstelle der topfartigen Vertiefungen eingesetzt werden können.The collection and the distribution space are preferably formed by pot-like depressions around the openings in the stacked heat exchanger plates trained as is known in and of itself. As part of the present However, the invention also includes sleeves that replace the pot-like depressions can be used.

Vorzugsweise besitzen die Strömungskanäle für das flüssige Kühlmittel Abstütznoppen, die mit ebensolchen Noppen der benachbarten Platte verbunden sind. Diese Noppen kann man jedoch ebenfalls durch Inneneinsätze ersetzen. Inneneinsätze sind vorzugsweise in den Strömungskanälen für das Gas angeordnet. Die Form der Inneneinsätze ist abhängig von dem jeweiligen Einsatzfall. Soll Abgas gekühlt werden, wird man sich für Inneneinsätze entscheiden, an denen sich möglichst wenig Ablagerungen bilden können, die also glatte Oberflächen haben. Bei Ladeluft können Inneneinsätze vorgesehen werden, die für mehr Turbulenz und noch besseren Wärmeaustausch sorgen.The flow channels for the liquid coolant preferably have support knobs, which are connected with such knobs of the adjacent plate. However, these knobs can also be replaced by inner inserts. inside bets are preferably arranged in the flow channels for the gas. The shape of the inner inserts depends on the respective application. Should exhaust gas to be cooled, you will choose indoor inserts that can form as few deposits as possible, which have smooth surfaces. In the case of charge air, internal inserts can be provided for more turbulence and provide even better heat exchange.

Die Inneneinsätze sind bei einer anderen erfinderischen Ausführungsform vollständig weggelassen worden. Dafür wurden die Wärmetauscherplatten mit alternierend angeordneten ersten und zweiten Sicken ausgestattet. Die zweiten Sicken können Unterbrechungen aufweisen, so daß lediglich in einer Reihe liegende Abstütznoppen übrigbleiben.The inner inserts are complete in another inventive embodiment been left out. For this, the heat exchanger plates were alternating arranged first and second beads. The second Beads can have interruptions, so that only one row Support knobs remain.

Eine erfinderische Ausführungsform besitzt ferner Abdeckplatten, die für sehr flexible Anschlußlagen der Stutzen sorgen, weil sich die Stutzen an beliebigen Stellen der Anschlußplatten befinden können.An inventive embodiment also has cover plates that are very provide flexible connection positions of the sockets because the sockets can be on any Locations of the connection plates can be.

Nachfolgend wird die Erfindung anhand mehrerer Ausführungsbeispiele erläutert, wozu auf die beiliegenden Zeichnungen Bezug genommen wird.

Fig. 1
Draufsicht auf einen Abgaswärmetauscher
Fig. 1a
Schnitt am Längsrand in Fig. 1
Fig. 1b
Schnitt im Kreuzungsbereich in Fig. 1
Fig. 1c
Schnitt durch die Abgaskanäle in Fig. 1
Fig. 2
Seitenansicht eines Abgaswärmetauschers
Fig. 3
Schnitt C-C in Fig. 1
Fig. 4
Vorderansicht von Fig. 1
Fig. 5
Draufsicht einer anderen Ausführungsform
Fig. 6
Schnitt A - A in Fig. 5
Fig. 7
Draufsicht einer dritten Ausführungsform
Fig. 8
Schnitt A-A in Fig. 7
Fig. 9
Schnitt B-B in Fig. 7
The invention is explained below using several exemplary embodiments, for which reference is made to the accompanying drawings.
Fig. 1
Top view of an exhaust gas heat exchanger
Fig. 1a
Section along the longitudinal edge in Fig. 1st
Fig. 1b
Section in the intersection area in Fig. 1st
Fig. 1c
Section through the exhaust gas channels in Fig. 1st
Fig. 2
Side view of an exhaust gas heat exchanger
Fig. 3
Section CC in Fig. 1st
Fig. 4
1
Fig. 5
Top view of another embodiment
Fig. 6
Section A - A in Fig. 5
Fig. 7
Top view of a third embodiment
Fig. 8
Section AA in FIG. 7
Fig. 9
Section BB in FIG. 7

Der Abgaswärmetauscher besteht aus einem geeigneten Edelstahl. Sämtliche Verbindungen zwischen den Einzelteilen des Abgaswärmetauschers werden vorzugsweise durch Löten hergestellt.The exhaust gas heat exchanger consists of a suitable stainless steel. All Connections between the individual parts of the exhaust gas heat exchanger are preferred made by soldering.

Im Ausführungsbeispiel nach Fig. 1, die eine Draufsicht ohne Abdeckplatte 22 zeigt, sind der Sammelraum 4 und der Verteilerraum 4 an gegenüberliegenden Seiten 12 des Abgaswärmetauschers in überkragenden Bereichen 13 angeordnet. Aus diesem Grund sind hier zwei Arten Wärmetauscherplatten 1 erforderlich, um die Strömungskanäle 5 und 7 zu bilden. Die Strömungskanäle 5 sind für Wasser W vorgesehen und die Strömungskanäle 7 für Abgas G. Die Wärmetauscherplatten 1 sind paarweise an ihren umlaufenden Rändern 2 verbunden. Außerdem sind sie an ihren umlaufenden Ausprägungen 8 verbunden, die in der Draufsicht als eine dicke Linie dargestellt worden ist und die einen Bereich des Abgaswärmetauschers umfaßt, der kleiner ist, als die Gesamtfläche der Wärmetauscherplatten 1 bzw. kleiner als der von dem Rand 10 eingeschlossene Bereich. Der von der umlaufenden Ausprägung 8 umschlossene Bereich schließt die Einlaßöffnungen 3 und die Auslaßöffnungen 3 für das Kühlwasser ein und besteht aus in der Nähe des Randes 10 verlaufenden Abschnitten 9 und aus Abschnitten 11, die die Wärmetauscherplatten 1 kreuzen. Diese Kreuzung kann in einem beliebigen Winkel zur Längsachse der Wärmetauscherplatten 1 verlaufen und ist in Fig. 1 senkrecht zur Längsachse angeordnet. Die umlaufende Ausprägung 8 ist hier u-förmigindieWärmetauscherplatten1eingeprägt, wiedieskizzenhaften Fig. 1a und 1b zeigen. Die Fig. 1b zeigt ferner, daß die Strömungskanäle 5 für das Kühlwasser W an der umlaufenden Ausprägung 8 enden, jedoch die Strömungskanäle 7 für das Abgas G bis in den Sammelraum 6 bzw. in den Rohrboden 15 weitergeführt sind. Die Skizze 1c zeigt den Querschnitt der Strömungskanäle 7 in diesem Bereich. In den Strömungskanälen 7 befinden sich Inneneinsätze 17, die sich über die Gesamtlänge der Strömungskanäle 7 erstrecken, auch wenn sie in Fig. 1a nicht eingezeichnet worden sind. Dort wo die umlaufenden Ausprägungen 8 zweier Wärmetauscherplatten 1 miteinander verbunden sind, ist sowohl der Strömungskanal 5 vom Strömungskanal 7 abgeschottet, als auch beide Kanäle 5 und 7 nach außen hin, so daß kein äußeres Gehäuse den Stapel der Wärmetauscherplatten 1 umschließen muß. Die Fig. 1c zeigt, daß die Strömungskanäle 7 je zwei Längswände 16 aufweisen. In dem gezeigten Ausführungsbeispiel hat der Rohrboden 15 einzelne Öffnungen, die dem Querschnitt der Strömungskanäle 7 entsprechen, um dieselben aufnehmen zu können. In einem nicht gezeigten Ausführungsbeispiel sind die Enden der Strömungskanäle 7 aufgeweitet, so daß die Längswände 16 der benachbarten Kanäle 7 miteinander verbunden werden können, wodurch der Rohrboden 15 entfallen kann, weil direkt im Sammelraum 6 eine Öffnung vorhanden ist, die sämtliche Strömungskanäle 7 aufnehmen kann.1, which is a top view without a cover plate 22 shows, the collecting space 4 and the distribution space 4 on opposite Sides 12 of the exhaust gas heat exchanger are arranged in projecting areas 13. For this reason, two types of heat exchanger plates 1 are required here to form the flow channels 5 and 7. The flow channels 5 are for water W provided and the flow channels 7 for exhaust gas G. The heat exchanger plates 1 are connected in pairs at their peripheral edges 2. Moreover they are connected to their circumferential features 8, which are in plan view has been shown as a thick line and the one area of the exhaust gas heat exchanger which is smaller than the total area of the heat exchanger plates 1 or smaller than the area enclosed by the edge 10. The of the circumferential shape 8 enclosed area closes the inlet openings 3 and the outlet openings 3 for the cooling water and consists of in the Near the edge 10 extending sections 9 and sections 11, which the Cross heat exchanger plates 1. This crossing can be in any Angle to the longitudinal axis of the heat exchanger plates 1 and is in Fig. 1st arranged perpendicular to the longitudinal axis. The circumferential shape 8 is here U-shaped in the heat exchanger plates 1, as shown in Fig. 1a and 1b show. Fig. 1b also shows that the flow channels 5 for the cooling water W end at the circumferential shape 8, but the flow channels 7 continued for the exhaust gas G into the collecting space 6 or into the tube sheet 15 are. The sketch 1c shows the cross section of the flow channels 7 in this Area. In the flow channels 7 there are inner inserts 17, which are Extend over the entire length of the flow channels 7, even if they are shown in FIG. 1a have not been drawn. Where the circumferential characteristics 8 two heat exchanger plates 1 are connected to each other, is both Flow channel 5 partitioned off from flow channel 7, as well as both channels 5 and 7 to the outside so that no outer housing the stack of heat exchanger plates 1 must enclose. 1c shows that the flow channels 7 each have two longitudinal walls 16. In the embodiment shown, the Tube plate 15 individual openings which correspond to the cross section of the flow channels 7 correspond in order to be able to record them. In an embodiment not shown the ends of the flow channels 7 are widened so that the Longitudinal walls 16 of the adjacent channels 7 can be connected to one another, whereby the tube sheet 15 can be omitted because a directly in the collecting space 6 There is an opening which can accommodate all flow channels 7.

Auf der obersten Wärmetauscherplatte der Fig. 1 sind Noppen 20 eingezeichnet worden. Diese Noppen 20 sind auch in Fig. 3 zu finden, die den Schnitt C - C aus Fig. 1 zeigt, mit dem Unterschied, daß im Schnitt C - C die Abdeckplatte 22 eingezeichnet wurde, die einen Raum 24 zur ersten Wärmetauscherplatte 1 hin eingrenzt. Die Noppen 20 erstrecken sich in den Strömungskanal 5, in dem Wasser W strömt. Die Noppen 20 der einen Wärmetauscherplatte 1 sind mit den Noppen 20 der nächsten Wärmetauscherplatte 1 verbunden. Aus der Fig. 3 geht außerdem die Ausbildung der Sammel-oder Verteilerräume 4 hervor. Um die Öffnungen 3 herum sind in den Wärmetauscherplatten 1 topfartige Vertiefungen 14 angeformt, die auf einer vertikalen Linie liegend den Sammel-und den Verteilerraum 4 ausbilden, der in Verbindung mit den Strömungskanälen 5 ist, so daß das Wasser W gemäß den eingezeichneten Strömungspfeilen fließen kann. Die Ausbildung der Ränder 2 mit der umlaufenden Ausprägung 8 im Bereich der Sammel-und Verteilerräume 4 kann ebenfalls aus Fig. 3 entnommen werden. Die Abdeckplatte 22 ermöglicht es, die Lage der Anschlußstutzen 19 für das Wasser W frei wählen zu können und zwar an einer beliebigen Stelle an der gesamten Platte 22.Nubs 20 are shown on the top heat exchanger plate of FIG. 1 Service. These knobs 20 can also be found in FIG. 3, which have the section C - C Fig. 1 shows, with the difference that the cover plate 22 is shown in section C - C was that delimited a space 24 to the first heat exchanger plate 1. The knobs 20 extend into the flow channel 5, in the water W flows. The knobs 20 of the one heat exchanger plate 1 are with the knobs 20 of the next heat exchanger plate 1 connected. 3 also goes the formation of the collection or distribution rooms 4. Around the openings 3 pot-like depressions 14 are formed around them in the heat exchanger plates, the collecting and distribution space 4 lying on a vertical line form, which is in connection with the flow channels 5, so that the water W can flow according to the flow arrows. Training the edges 2 with the circumferential shape 8 in the area of the collecting and Distribution rooms 4 can also be seen in FIG. 3. The cover plate 22 makes it possible to freely choose the position of the connecting piece 19 for the water W. to be able to do so and anywhere on the entire plate 22nd

Die Fig. 4 zeigt eine Ansicht aus Richtung des einen Sammelraumes 6 für das Abgas G. Zu erkennen ist ein Teil des Rohrbodens 15, in dem die Strömungskanäle 7 mit Inneneinsätzen 17 münden. Der Anschluß an die nicht gezeigte Abgasleitung kann hier mittels eines Spannringes 21 vorgenommen werden. Die Befestigung des Abgaswärmetauschers, beispielsweise in einem Fahrzeug, erfolgt durch geeignete Halterungen 23Fig. 4 shows a view from the direction of a collecting space 6 for the Exhaust gas G. A part of the tube sheet 15 can be seen, in which the flow channels 7 open with inserts 17. The connection to the exhaust pipe, not shown can be made here by means of a clamping ring 21. The Attachment of the exhaust gas heat exchanger, for example in a vehicle by means of suitable brackets 23

Die in der Fig. 2 dargestellte Seitenansicht des Abgaswärmetauschers zeigt ein anderes Ausführungsbeispiel, bei dem die Ein-und Auslaßstutzen 19 für das Wasser W an einer gemeinsamen Seite 12 des Abgaswärmetauschers angeordnet worden sind, in der Zeichnung an der nicht gezeigten Rückseite. Dadurch ergibt sich der Vorteil, daß alle Wärmetauscherplatten 1 gleich gestaltet sein können. Aus dieser Seitenansicht geht der Bereich B hervor, der von der umlaufenden Ausprägung 8 bestimmt wird. Innerhalb dieses Bereiches B laufen die Strömungskanäle 5 und 7 parallel. Außerhalb dieses Bereiches münden die Strömungskanäle 7 in den Sammelräumen 6. Die Strömungskanäle 5 enden dort, wo die umlaufende Ausprägung 8 die Wärmetauscherplatten 1 kreuzt.The side view of the exhaust gas heat exchanger shown in FIG. 2 shows a another embodiment in which the inlet and outlet 19 for the Water W arranged on a common side 12 of the exhaust gas heat exchanger have been in the drawing on the back, not shown. This gives the advantage that all heat exchanger plates 1 can be designed the same. From this side view the area B emerges, that of the circumferential Expression 8 is determined. Within this area B run Flow channels 5 and 7 in parallel. Outside of this area, the Flow channels 7 in the collecting spaces 6. The flow channels 5 end there, where the peripheral shape 8 crosses the heat exchanger plates 1.

Die Fig. 5 bis 9 zeigen zwei andere Ausführungsformen bei denen auf Inneneinsätze 17 vollständig verzichtet worden ist. Dadurch ist die Zahl der Einzelteile geringer, mit der Folge, daß der Herstellungsprozeß einfacher gestaltet werden kann. Die Draufsichten in den Fig. 5 und 7 wurden jeweils ohne Abdeckplatte 22 gezeichnet. Die Wärmetauscherplatten 1 sind mit einer wellenförmigen Wandung versehen, die durch alternierende Längssicken 25 und 26 realisiert worden sind. Die in den Fig. 5 und 6 gezeigte Ausführungsform unterscheidet sich von der Ausführungsform der Fig. 7 bis 9 dadurch, daß die erstgenannte Ausführungsform keine durchgehenden ersten Sicken 25 aufweist. Diese Sicken 25 sind durch in einer Reihe angeordnete Abstütznoppen 20 ersetzt worden. Dadurch ist der Strömungswiderstand für das Kühlwasser W in den Kanälen 5 reduziert worden. In Fig. 5 ist durch Strömungspfeile deutlich gemacht worden, daß das Wasser leichter ein-und ausströmen kann, wie ein Vergleich mit der Fig. 7 zeigt. Ein weiterer Unterschied zwischen diesen beiden Ausführungsformen besteht in der Anordnung der Sammel-und Verteilerräume 4. Die Fig. 5 und 6 zeigen keine auskragenden Bereiche 13 der Wärmetauscherplatten 1. Die Sammel-und Verteilerräume 4 sind innerhalb der rechteckigen Grundform der Wärmetauscherplatten 1 angeordnet. In den Fig. 7 bis 9 sind auskragende Bereiche 13 vorgesehen, in denen sich die Sammel-und Verteilerräume 4 befinden. Die zuletzt beschriebenen beiden Ausführungsformen erlauben eine noch kompaktere Bauweise des Abgaswärmetauschers. 5 to 9 show two other embodiments in which on internal inserts 17 has been completely dispensed with. This is the number of parts less, with the result that the manufacturing process can be made simpler can. The top views in FIGS. 5 and 7 were each without a cover plate 22 drawn. The heat exchanger plates 1 have an undulating wall provided, which have been realized by alternating longitudinal beads 25 and 26. The embodiment shown in FIGS. 5 and 6 differs from that Embodiment of FIGS. 7 to 9 in that the first-mentioned embodiment has no continuous first beads 25. These beads 25 are through in a row of support knobs 20 have been replaced. This is the Flow resistance for the cooling water W in the channels 5 has been reduced. In Fig. 5 it has been made clear by flow arrows that the water can flow in and out more easily, as a comparison with FIG. 7 shows. On Another difference between these two embodiments is that Arrangement of the collecting and distribution rooms 4. FIGS. 5 and 6 show none cantilevered areas 13 of the heat exchanger plates 1. The collecting and Distribution rooms 4 are within the rectangular basic shape of the heat exchanger plates 1 arranged. 7 to 9 are cantilevered areas 13 provided, in which the collection and distribution rooms 4 are located. The last one described two embodiments allow an even more compact design of the exhaust gas heat exchanger.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Wärmetauscherplattenheat exchanger plates
22
Randflanschedge flange
33
Öffnungen in PlattenOpenings in plates
44
Sammelräume und VerteilerräumeCollection rooms and distribution rooms
55
Strömungskanäle für WasserFlow channels for water
66
Sammelräume für AbgasCollection rooms for exhaust gas
77
Strömungskanäle für AbgasFlow channels for exhaust gas
88th
umlaufende Ausprägungall-round expression
99
Abschnitt der umlaufenmden AusprägungSection of the circulating expression
1010
Randedge
1111
anderer Abschnitt von 8other section of 8
1212
eine Seite des Wärmetauschersone side of the heat exchanger
1313
auskragender Bereichcantilevered area
1414
topfartige Vertiefungpot-like depression
1515
Rohrbödentube sheets
1616
Längswändelongitudinal walls
1717
Inneneinsätzeinside bets
18 1918 19
Anschlußstutzenconnecting branch
2020
Noppenburl
2121
Spannringclamping ring
2222
Abdeckplattecover
2323
Halterungbracket
2424
Raumroom
2525
1. Sicken1. beads
2626
2. Sicken2. beads
BB
BereichArea
GG
Abgasexhaust
WW
Wasserwater

Claims (14)

  1. Heat exchanger for the exchange of heat between a gas and a liquid, for example a charge-air heat exchanger or an exhaust-gas heat exchanger cooled with water, the heat exchanger comprising a stack of heat-exchanger plates (1) which are joined together in a mirror-inverted manner and are connected at the edge flange (2) and about their openings (3), which lie in a line, in such a manner that they comprise collecting and distributing chambers (4) for a first medium and its horizontal flow ducts (5), and also having collecting chambers (6) into which the flow ducts (7) for the second medium open,
    characterized in that
    the stack consists of shell-shaped heat-exchanger plates (1) and encloses separate flow ducts (7) for the second medium, the heat-exchanger plates (1) having an encircling embossed area (8) which has sections (9) in the vicinity of the edge (10) of the heat-exchanger plates (1) and sections (11) which cross the heat-exchanger plates (1) and which at least contain the inlet opening and the outlet opening (3) for the first medium, the encircling embossed area (8) of the one heat-exchanger plate (1) being connected to the embossed area (8) of the next heat-exchanger plate (1), with the result that a region (B) of the heat-exchanger plates (1) is enclosed by the encircling embossed area (8);
    the flow ducts (5 and 7) for the two media being arranged parallel to each other within the region (B);
    the encircling embossed area (8) separating the two flow ducts (5, 7) fluidically from each other and from the outside;
    the flow ducts (7) for the second medium opening outside the encircling embossed area (8) into at least one connecting chamber (6).
  2. Heat exchanger according to Claim 1, characterized in that the encircling embossed area (8) has a cross-sectional shape which is preferably of approximately u-shaped design.
  3. Heat exchanger according to Claims 1 and 2, characterized in that all of the heat-exchanger plates (1) are identical, and the collecting space and the distributing space (4) for the one medium are arranged on the same side (12) of the heat exchanger.
  4. Heat exchanger according to Claims 1 and 2, characterized in that two types of heat-exchanger plates (1) are provided, and the collecting chamber (4) is arranged on one side (12) of the heat exchanger and the distributing chamber (4) is arranged on the opposite side (12) thereof.
  5. Heat exchanger according to one of Claims 1 to 4, characterized in that the collecting chamber and the distributing chamber (4) are arranged within the region (B) of the two flow ducts (5; 7).
  6. Heat exchanger according to one of Claims 1 to 4, characterized in that the collecting chamber and the distributing chamber (4) are arranged in protruding regions (13) outside the region (B) of the two flow ducts (5; 7).
  7. Heat exchanger according to one of the preceding claims, characterized in that the collecting chamber and the distributing chamber (4) are formed by cup-like depressions (14) which are impressed into the heat-exchanger plates (1), around the openings (3), and are connected to the cup-like depressions (14) of the following heat-exchanger plate (1).
  8. Heat exchanger according to one of the preceding claims, characterized in that the flow ducts (7) for the other medium open into tube bottoms (15), the openings of which are matched to the cross section of the flow ducts (7) in order to accommodate the latter within them, and having collecting chambers (6) on the tube bottoms (15).
  9. Heat exchanger according to one of the preceding Claims 1 to 7, characterized in that the ends of the flow ducts (7) for the other medium are formed in such a manner that their longitudinal walls (16) bear against one another and are to be connected in a tight-fitting manner and in that the flow ducts (7) without tube bottoms (15) open into an opening in the collecting chambers (6).
  10. Heat exchanger according to one of the preceding claims, characterized in that supporting knobs (20) are impressed into the heat-exchanger plates (1), the said supporting knobs being connected to the supporting knobs (20) of the adjacent plate (1) and their height being identical to the height of the encircling embossed area (8), and in that the flows duct (5) having the supporting knobs (20) is intended for the cooling liquid.
  11. Heat exchanger according to one of the preceding claims, characterized in that the flow ducts (7) for the gas have internal inserts (17).
  12. Heat exchanger according to one of Claims 1 to 9, characterized in that the two flow ducts (5, 7) are free from internal inserts (17) and the heat-exchanger plates (1) are provided with beads (25; 26) which run longitudinally and alternate, as seen in the transverse direction, with the result that when the heat-exchanger plates (1) are stacked flow ducts (5, 7) having a wavy wall are formed in such a manner that every second bead (25) is in contact with, and connected to, every second bead (25) of the adjacent heat-exchanger plate (1), which results in the formation of the flow ducts (5) for the one medium, preferably for the cooling water, and in such a manner that every first bead (26) of the heat-exchanger plate (1) together with every first bead (26) of the adjacent heat-exchanger plate (1) forms the adjacent flow duct (7) for the other medium, preferably for the exhaust gas, the opposite, first beads (26) in each case constricting the flow duct (7), but not being in contact with one another.
  13. Heat exchanger according to Claim 12, characterized in that the bead height of every second bead (25) is identical to the height of the encircling embossed area (8) and the second beads in each case are either continuous over the length of that region (B) of the heat-exchanger plates (1) which is enclosed by the encircling embossed area (8) or are interrupted and merely form individual supporting knobs (20) lying in a row.
  14. Heat exchanger according to one of the preceding claims, characterized in that the stack of heat-exchanger plates (1) has a covering plate (22) which, towards the uppermost heat-exchanger plate (1) of the stack, forms a chamber (24) for the liquid cooling medium and which is used for the flexibility of the connecting position by having at least one connecting branch (19) at any desired point.
EP99119392A 1998-10-09 1999-09-29 Heat exchanger, more particularly for gases and liquids Expired - Lifetime EP0992756B1 (en)

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DE19846518 1998-10-09
DE19846518A DE19846518B4 (en) 1998-10-09 1998-10-09 Heat exchangers, in particular for gases and liquids

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EP0992756A3 EP0992756A3 (en) 2000-12-13
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EP (1) EP0992756B1 (en)
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AT (1) ATE228639T1 (en)
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ES (1) ES2188080T3 (en)

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JP3359946B2 (en) * 1993-03-04 2002-12-24 東京ラヂエーター製造株式会社 Stacked heat exchanger
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DE4307504C1 (en) * 1993-03-10 1994-09-22 Mtu Friedrichshafen Gmbh Heat exchanger, in particular charge air cooler of an internal combustion engine
DE9406197U1 (en) * 1994-04-14 1994-06-16 Behr Gmbh & Co Heat exchanger for cooling exhaust gas from a motor vehicle engine
DE19549801B4 (en) * 1995-03-31 2008-01-17 Behr Gmbh & Co. Kg Plate heat exchanger
US5964280A (en) * 1996-07-16 1999-10-12 Modine Manufacturing Company Multiple fluid path plate heat exchanger
DE19836889A1 (en) * 1998-08-14 2000-02-17 Modine Mfg Co Exhaust gas heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1491837A2 (en) 2003-06-26 2004-12-29 Modine Manufacturing Company Plate heat exchanger without casing
EP1626238A1 (en) 2004-08-14 2006-02-15 Modine Manufacturing Company Heat exchanger having flat tubes
US7243707B2 (en) 2004-08-14 2007-07-17 Modine Manufacturing Company Flat tube exhaust heat exchanger with bypass
EP1710526A1 (en) 2005-03-26 2006-10-11 Modine Manufacturing Company Heat exchanger, in particular intercooler

Also Published As

Publication number Publication date
DE19846518A1 (en) 2000-04-13
EP0992756A3 (en) 2000-12-13
ATE228639T1 (en) 2002-12-15
DE19846518B4 (en) 2007-09-20
US6250380B1 (en) 2001-06-26
DE59903529D1 (en) 2003-01-09
JP2000121278A (en) 2000-04-28
EP0992756A2 (en) 2000-04-12
ES2188080T3 (en) 2003-06-16

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