EP1522811B1 - Heat exchanger, more particularly oil cooler - Google Patents

Heat exchanger, more particularly oil cooler Download PDF

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Publication number
EP1522811B1
EP1522811B1 EP04022134A EP04022134A EP1522811B1 EP 1522811 B1 EP1522811 B1 EP 1522811B1 EP 04022134 A EP04022134 A EP 04022134A EP 04022134 A EP04022134 A EP 04022134A EP 1522811 B1 EP1522811 B1 EP 1522811B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
fastening plate
baseplate
orifices
oil 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.)
Expired - Fee Related
Application number
EP04022134A
Other languages
German (de)
French (fr)
Other versions
EP1522811A3 (en
EP1522811A2 (en
Inventor
Jürgen Dipl.-Ing. Hummel
Eric Van Hoof
Uwe Bindel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Modine Manufacturing Co
Original Assignee
Daimler AG
Modine Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daimler AG, Modine Manufacturing Co filed Critical Daimler AG
Publication of EP1522811A2 publication Critical patent/EP1522811A2/en
Publication of EP1522811A3 publication Critical patent/EP1522811A3/en
Application granted granted Critical
Publication of EP1522811B1 publication Critical patent/EP1522811B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/0075—Supports for plates or plate assemblies
    • 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
    • F28D9/005—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 the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/06—Adapter frames, e.g. for mounting heat exchanger cores on other structure and for allowing fluidic connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/916—Oil cooler

Definitions

  • the invention relates to a heat exchanger, in particular oil cooler, with the features of the preamble of claim 1.
  • Heat exchangers or oil cooler of this type are known, which are constructed of trough-shaped plates.
  • the plates have bent edges.
  • the individual stacked plates are on top of each other like scales.
  • the media are distributed through tubes in the heat exchanger, the plates always alternately forming a channel of one fluid and a channel of the other fluid.
  • the entire oil cooler is by means of a mounting plate on the housing, for. B. on the housing of a filter screwed.
  • a distributor plate is integrated.
  • bores for the coolant, as well as for the oil are arranged, which distribute the two fluids.
  • the distributor plate and the mounting plate can be formed in one piece as well as in two pieces.
  • the oil cooler, the distributor - and the mounting plate are connected together during soldering. To seal the oil cooler relative to the housing grooves are poured into the housing during manufacture, in which then seals are inserted.
  • the housing also contains the connecting pieces for the two fluids.
  • another caseless oil cooler which has a reinforcement plate and a base plate for attachment.
  • the reinforcing plate is configured like a thickened heat transfer plate.
  • base and reinforcement plate are soldered to the oil cooler.
  • the base plate also has a peripheral edge with protruding tabs for tightening the oil cooler on the housing of an engine block.
  • the connecting pieces for oil and coolant are inserted directly into suitable holes in the housing.
  • the oil cooler is sealed off from the housing by means of seals which, on the one hand, are seated on the connecting piece and, on the other hand, are inserted in a groove in the housing.
  • the attachment of the groove in the housing including the creation of a flat sealing surface on the housing can lead to a certain undesirable expense.
  • a heat exchanger which has a base plate and a connection flange fastened thereto for fastening a conduit flange.
  • Another heat exchanger is known comprising a base plate, a reinforcing plate and a mounting plate. This heat exchanger is attached to a central tube.
  • an oil cooler of the type described is known. This oil cooler has a combined base and mounting plate. On the side facing away from the heat exchanger side of the combined base and mounting plate milled recesses are provided for receiving seals. The recesses are annular grooves that surround the openings at a radial distance.
  • FIG. 1 is the entire finished oil cooler 1 to see, with inserted seals 2 before it is screwed by means of the holes 5 on the housing, not shown, or on the engine block.
  • the base 3a and the mounting plate 3b are according to a first embodiment, as shown here, of two different thickness, but preferably with the same outer shape, soldered together plates 3a , 3b exist. Wherein the recesses 10 are to be punched out of the mounting plate 3b for the seals 2 .
  • the plates 3a , 3b can also have the same thickness.
  • the inside 32 which is the side facing away from the engine block side of the mounting plate 3b is solder plated.
  • FIG. 2 An exact plan view of the underside of the mounting plate 3b of the oil cooler 1 shows Fig. 2 , The sections E - E and F - F shown herein can be seen in the following figures.
  • the molded lugs 29 on the outside of the seals 2 serve to pinch the seal 2 , so that they can not fall out during mounting.
  • the recesses 10 for receiving the seals 2 have approximately a bone-like shape. It may also be possible, as in an embodiment not shown, another form, depending on the position of the openings 4 , 6 , which in turn is given by the shape and requirements of the engine block.
  • Fig. 3a and b is the section F - F off Fig. 2 shown.
  • the gasket 2 has noses 29 on the thick, annular bead 28 and is thinned in the middle 27 connecting the two annular beads 28 .
  • the opening 4 , 6 has a smaller cross-section than the recess 10 at the openings 4 , 6 , so that the seal 2 can not be pressed into the oil cooler 1 inside. This achieves a tight connection between oil cooler 1 including soldered base 3a and mounting plate 3b with the engine block.
  • the inside 32 of the mounting plate 3b is solder plated.
  • impressions 20 for a solder deposit in the vicinity of and around the recess 10 are embossed in the fastening plate 3b .
  • These impressions 20 have, as in Fig. 5 Interruptions 34 on, but they could also be consistent.
  • Fig. 3b one sees the soldered oil cooler 1 with the soldered base 3a and mounting plate 3b and with the seal 2 inserted.
  • Fig. 4a and b is the cut E - E off Fig. 2 shown.
  • the recess 10 , 41 in the mounting plate 3b has a larger diameter than the opening 4 in the base plate 3a .
  • Fig. 4b If you see the soldered oil cooler 1 with soldered base 3a and mounting plate 3b and with inserted seal. 2
  • the resulting in the oil cooler 1 by the nesting of the trough-shaped heat transfer plates 9 channels 7 , 8 for the coolant and the oil have been indicated by flow arrows.
  • Fig. 5 is the selected in this embodiment, the bone shape of the recess 10 to see well. It is composed of two circular openings 41 and a 41 connecting the openings slot 42nd
  • the shape of the seal 2 is adapted to the shape of the recess 10 in the respective embodiment.
  • the holes 43 are used for venting during the soldering process.
  • Fig. 6 an alternative embodiment is shown. It shows that the recesses 10 only consist of circular openings 41 without connecting slot 42 . This can be useful depending on the requirement.
  • the recesses 10 are larger than the openings 4 , 6 so that it is ensured here that the seal 2 is not pressed into the oil cooler.
  • the impressions 2 0 for the solder deposit are arranged around the recesses 10 , 41 .
  • the seals 2 also consist of a thick annular bead 28 with molded lugs 29 for clamping the seal 2 , during assembly of the oil cooler 1 on the engine block.
  • the recesses 10 are composed of two circular recesses and a rectangular recess connecting them. This rectangular recess can also be omitted, depending on the requirement.
  • the seals 2 are to be adjusted depending on the case.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Die Erfindung betrifft einen Wärmetauscher, insbesondere Ölkühler, mit den Merkmalen des Oberbegriffes des Patentanspruchs 1.The invention relates to a heat exchanger, in particular oil cooler, with the features of the preamble of claim 1.

Aus dem EP 0 828 980 B1 sind Wärmetauscher, bzw. Ölkühler dieser Art bekannt, die aus wannenförmigen Platten aufgebaut sind. Die Platten weisen umgebogene Ränder auf. Die einzelnen übereinander gestapelten Platten liegen an ihren Rändern schuppenförmig übereinander. Die Medien werden durch Rohre in dem Wärmetauscher verteilt, wobei die Platten immer abwechselnd einen Kanal des einen Fluids und einen Kanal des anderen Fluids bilden. Der gesamte Ölkühler wird mittels einer Befestigungsplatte am Gehäuse, z. B. am Gehäuse eines Filters, angeschraubt. Zwischen Ölkühler und Befestigungsplatte wird hier eine Verteilerplatte integriert. In dieser Verteilerplatte sind Bohrungen für das Kühlmittel, sowie für das Öl angebracht, die die zwei Fluide verteilen. Es wird vorgeschlagen, dass die Verteilerplatte und die Befestigungsplatte sowohl einstückig als auch zweistückig ausgebildet werden können. Der Ölkühler, die Verteiler - und die Befestigungsplatte, werden beim Löten miteinander verbunden. Zur Abdichtung des Ölkühlers gegenüber dem Gehäuse werden in das Gehäuse bei der Herstellung Nuten eingegossen, in die dann Dichtungen eingelegt werden. Das Gehäuse enthält gleichzeitig die Anschlussstutzen für die beiden Fluide.From the EP 0 828 980 B1 Heat exchangers, or oil cooler of this type are known, which are constructed of trough-shaped plates. The plates have bent edges. The individual stacked plates are on top of each other like scales. The media are distributed through tubes in the heat exchanger, the plates always alternately forming a channel of one fluid and a channel of the other fluid. The entire oil cooler is by means of a mounting plate on the housing, for. B. on the housing of a filter screwed. Between oil cooler and mounting plate here a distributor plate is integrated. In this distributor plate bores for the coolant, as well as for the oil are arranged, which distribute the two fluids. It is proposed that the distributor plate and the mounting plate can be formed in one piece as well as in two pieces. The oil cooler, the distributor - and the mounting plate are connected together during soldering. To seal the oil cooler relative to the housing grooves are poured into the housing during manufacture, in which then seals are inserted. The housing also contains the connecting pieces for the two fluids.

Aus der DE 197 11 258 C2 ist ein weiterer gehäuseloser Ölkühler bekannt, der eine Verstärkungsplatte und eine Grundplatte zum Befestigen aufweist. In diesem Fall ist die Verstärkungsplatte wie eine verdickte Wärmetransferplatte ausgestaltet. Auch hier sind Grund - und Verstärkungsplatte mit dem Ölkühler verlötet. Die Grundplatte besitzt zudem einen umlaufenden Rand mit vorstehenden Laschen zum Festschrauben des Ölkühlers am Gehäuse eines Motorblockes. Die Anschlussstutzen für Öl und Kühlmittel werden direkt in geeignete Bohrungen im Gehäuse gesteckt. Abgedichtet wird der Ölkühler gegenüber dem Gehäuse über Dichtungen, die zum einen auf dem Anschlussstutzen sitzen und zum anderen in einer Nut im Gehäuse eingelegt werden. Die Anbringung der Nut im Gehäuse einschließlich der Schaffung einer ebenen Dichtfläche am Gehäuse kann zu einem gewissen unerwünschten Aufwand führen.From the DE 197 11 258 C2 For example, another caseless oil cooler is known which has a reinforcement plate and a base plate for attachment. In this case, the reinforcing plate is configured like a thickened heat transfer plate. Again, base and reinforcement plate are soldered to the oil cooler. The base plate also has a peripheral edge with protruding tabs for tightening the oil cooler on the housing of an engine block. The connecting pieces for oil and coolant are inserted directly into suitable holes in the housing. The oil cooler is sealed off from the housing by means of seals which, on the one hand, are seated on the connecting piece and, on the other hand, are inserted in a groove in the housing. The attachment of the groove in the housing, including the creation of a flat sealing surface on the housing can lead to a certain undesirable expense.

Aus der US 5 964 280 ist ein Wärmetauscher bekannt, der eine Grundplatte aufweist und einen daran befestigten Anschlussflansch zum Befestigen eines Leitungsflansches.
Aus der US 5 099 912 ist ein weiterer Wärmetauscher bekannt, der eine Grundplatte, eine Verstärkungsplatte und eine Montageplatte aufweist. Dieser Wärmetauscher wird an einem zentralen Rohr befestigt.
Aus der US 2002/0066552 A1 ist ebenfalls ein Ölkühler des beschriebenen Typs bekannt. Dieser Ölkühler weist eine kombinierte Grund - und Befestigungsplatte auf. An der vom Wärmetauscher wegweisenden Seite der kombinierten Grund - und Befestigungsplatte sind gefräste Aussparungen für die Aufnahme von Dichtungen vorgesehen. Die Aussparungen sind ringförmige Nuten, die die Öffnungen mit einem radialen Abstand umrunden. Diese Veröffentlichung entspricht dem Oberbegriff des Patentanspruchs 1.From the US 5,964,280 For example, a heat exchanger is known which has a base plate and a connection flange fastened thereto for fastening a conduit flange.
From the US 5 099 912 Another heat exchanger is known comprising a base plate, a reinforcing plate and a mounting plate. This heat exchanger is attached to a central tube.
From the US 2002/0066552 A1 Also, an oil cooler of the type described is known. This oil cooler has a combined base and mounting plate. On the side facing away from the heat exchanger side of the combined base and mounting plate milled recesses are provided for receiving seals. The recesses are annular grooves that surround the openings at a radial distance. This publication corresponds to the preamble of claim 1.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Wärmetauscher, insbesondere Ölkühler, derart zu gestalten, dass die Montage des Wärmetauschers an einem Gehäuse weiter verbessert wird.
Die Lösung dieser Aufgabe wird erfindungsgemäß bei einem Wärmetauscher, der eingangs genannten Art durch das Kennzeichen des Anspruchs 1 erreicht. Die Ansprüche 2 bis 8 dienen der weiteren Ausgestaltung.
Die Ausführung besteht darin, die kombinierte Grund - und Befestigungsplatte zweiteilig auszubilden. Das Vorsehen der Aussparungen zur Aufnahme der Dichtung in der kombinierten Grund - und Befestigungsplatte führt zum Entfall von Nuten oder dergleichen Vertiefungen für Dichtungen an der Anschlussseite, beispielsweise am Motorblock in einem Kraftfahrzeug. Die Montage des Wärmetauschers am Motorblock wurde somit vereinfacht. Die zweiteilige Ausbildung der kombinierten Grund - und Befestigungsplatte hat zusätzliche fertigungstechnische Vorteile, die zur Reduzierung der Herstellungskosten für den Wärmetauscher führen, weil die Aussparungen ausgestanzt werden können. Da die in die Aussparung einzufügende Dichtung vorzugsweise aus jeweils zwei miteinander verbundenen Dichtungen besteht, wurde die Anzahl der Einzelteile reduziert und das Einlegen der Dichtung wurde vereinfacht.
Die Erfindung ist in den Figuren 1 - 6 anhand zweier Ausführungsbeispiele dargestellt:

  • Fig. 1 zeigt eine schematische Ansicht eines Ölkühlers von unten
  • Fig. 2 zeigt eine Draufsicht auf die Befestigungsplatte mit angelötetem Ölkühler von der Gehäuseseite, von unten
  • Fig. 3a zeigt eine Explosionsdarstellung des Schnittes F-F aus Figur 2
  • Fig. 3b zeigt Schnitt F-F
  • Fig. 4a zeigt eine Explosionsdarstellung des Schnittes E-E aus Figur 2
  • Fig. 4b zeigt Schnitt E-E
  • Fig. 5 zeigt die Befestigungsplatte von der Ölkühlerseite aus, von oben
  • Fig. 6 zeigt eine alternative Ausführungsform der Befestigungsplatte von der Ölkühlerseite aus, von oben
The present invention has for its object to make a heat exchanger, in particular oil cooler, such that the assembly of the heat exchanger is further improved on a housing.
The solution to this problem is inventively achieved in a heat exchanger of the type mentioned by the characterizing part of claim 1. Claims 2 to 8 serve the further embodiment.
The design consists of forming the combined base and mounting plate in two parts. The provision of the recesses for receiving the seal in the combined base and mounting plate leads to the omission of grooves or the like recesses for seals on the connection side, for example on the engine block in a motor vehicle. The installation of the heat exchanger on the engine block has thus been simplified. The two-part design of the combined base and mounting plate has additional manufacturing advantages that lead to the reduction of manufacturing costs for the heat exchanger, because the recesses can be punched out. Since the seal to be inserted in the recess preferably consists of two interconnected seals, the number of parts has been reduced and the insertion of the seal has been simplified.
The invention is in the Figures 1-6 illustrated by two embodiments:
  • Fig. 1 shows a schematic view of an oil cooler from below
  • Fig. 2 shows a plan view of the mounting plate with soldered oil cooler from the housing side, from below
  • Fig. 3a shows an exploded view of the section F - F. FIG. 2
  • Fig. 3b shows section F - F
  • Fig. 4a shows an exploded view of the section E - E FIG. 2
  • Fig. 4b shows section E - E
  • Fig. 5 shows the mounting plate from the oil cooler side, from above
  • Fig. 6 shows an alternative embodiment of the mounting plate from the oil cooler side, from above

In Figur 1 ist der gesamte fertig gelötete Ölkühler 1 zu sehen, mit eingelegten Dichtungen 2, bevor er mit Hilfe der Bohrungen 5 am nicht gezeigten Gehäuse, bzw. am Motorblock festgeschraubt wird. Durch die Öffnungen 4 in der Grund- und der Befestigungsplatte 3 fließt das Öl in den Ölkühler hinein, bzw. wieder heraus. Die anderen Öffnungen 6 sind für das Kühlmittel gedacht. Die Grund- 3a und die Befestigungsplatte 3b sollen gemäß einem ersten Ausführungsbeispiel, wie hier dargestellt, aus zwei verschieden dicken, aber vorzugsweise mit derselben äußeren Form versehenen, miteinander verlöteten Platten 3a, 3b bestehen. Wobei die Aussparungen 10 für die Dichtungen 2 aus der Befestigungsplatte 3b ausgestanzt werden sollen. Die Platten 3a, 3b können natürlich auch die gleiche Dicke haben. Die Innenseite 32, die die vom Motorblock abgewandte Seite der Befestigungsplatte 3b ist, ist lotplattiert.In FIG. 1 is the entire finished oil cooler 1 to see, with inserted seals 2 before it is screwed by means of the holes 5 on the housing, not shown, or on the engine block. Through the openings 4 in the base and the mounting plate 3 , the oil flows into the oil cooler, or out again. The other openings 6 are intended for the coolant. The base 3a and the mounting plate 3b are according to a first embodiment, as shown here, of two different thickness, but preferably with the same outer shape, soldered together plates 3a , 3b exist. Wherein the recesses 10 are to be punched out of the mounting plate 3b for the seals 2 . Of course, the plates 3a , 3b can also have the same thickness. The inside 32 , which is the side facing away from the engine block side of the mounting plate 3b is solder plated.

Eine genaue Draufsicht auf die Unterseite der Befestigungsplatte 3b des Ölkühlers 1 zeigt Fig 2. Die hierin dargestellten Schnitte E-E und F-F sind in den nachfolgenden Figuren zu sehen. Die angeformten Nasen 29 auf der Außenseite der Dichtungen 2 dienen zum Einklemmen der Dichtung 2, so dass sie beim Montieren nicht herausfallen kann. Es ist deutlich zu erkennen, dass die Aussparungen 10 zur Aufnahme der Dichtungen 2 in etwa eine knochenförmige Gestalt aufweisen. Es kann auch, wie in einem nicht gezeigten Ausführungsbeispiel geschehen, eine andere Form möglich sein, je nach Position der Öffnungen 4, 6, was wiederum durch die Form und Anforderungen seitens des Motorblocks gegeben ist.An exact plan view of the underside of the mounting plate 3b of the oil cooler 1 shows Fig. 2 , The sections E - E and F - F shown herein can be seen in the following figures. The molded lugs 29 on the outside of the seals 2 serve to pinch the seal 2 , so that they can not fall out during mounting. It can be clearly seen that the recesses 10 for receiving the seals 2 have approximately a bone-like shape. It may also be possible, as in an embodiment not shown, another form, depending on the position of the openings 4 , 6 , which in turn is given by the shape and requirements of the engine block.

In Fig. 3a und b ist der Schnitt F-F aus Fig. 2 dargestellt. In der Explosionsdarstellung gemäß Fig. 3a sieht man, wie die Dichtung 2 in die dafür aus der Befestigungsplatte 3b ausgestanzte Aussparung 10 eingelegt wird. Die Dichtung 2 weist an dem dicken, ringförmigen Wulst 28 Nasen 29 auf und ist in der Mitte 27, die die beiden ringförmigen Wulste 28 verbindet, ausgedünnt. Die Öffnung 4, 6 weist einen geringeren Querschnitt auf als die Aussparung 10 an den Öffnungen 4, 6, so dass die Dichtung 2 nicht in den Ölkühler 1 hinein gedrückt werden kann. Dadurch erreicht man eine dichte Verbindung zwischen Ölkühler 1 inklusive angelöteter Grund- 3a und Befestigungsplatte 3b mit dem Motorblock. Besonders hervorzuheben ist, dass die Innenseite 32 der Befestigungsplatte 3b lotplattiert ist. Um zu verhindern, dass während des Lötprozesses Lot auf die Dichtungsfläche 33 der Grundplatte 3a fließt, sind in der Befestigungsplatte 3b Einprägungen 20 für ein Lotdepot in der Nähe von und rund um die Aussparung 10 eingeprägt. Diese Einprägungen 20 weisen, wie in Fig. 5 zu sehen, Unterbrechungen 34 auf, aber sie könnten auch durchgängig ausgebildet sein.
In Fig. 3b sieht man den verlöteten Ölkühler 1 mit der angelöteten Grund- 3a und Befestigungsplatte 3b und mit eingesetzter Dichtung 2.In Fig. 3a and b is the section F - F off Fig. 2 shown. In the exploded view according to Fig. 3a you can see how the seal 2 is inserted into the recess 10 punched out of the mounting plate 3b . The gasket 2 has noses 29 on the thick, annular bead 28 and is thinned in the middle 27 connecting the two annular beads 28 . The opening 4 , 6 has a smaller cross-section than the recess 10 at the openings 4 , 6 , so that the seal 2 can not be pressed into the oil cooler 1 inside. This achieves a tight connection between oil cooler 1 including soldered base 3a and mounting plate 3b with the engine block. Of particular note is that the inside 32 of the mounting plate 3b is solder plated. In order to prevent solder from flowing onto the sealing surface 33 of the base plate 3a during the soldering process, impressions 20 for a solder deposit in the vicinity of and around the recess 10 are embossed in the fastening plate 3b . These impressions 20 have, as in Fig. 5 Interruptions 34 on, but they could also be consistent.
In Fig. 3b one sees the soldered oil cooler 1 with the soldered base 3a and mounting plate 3b and with the seal 2 inserted.

In Fig. 4a und b ist der Schnitt E-E aus Fig. 2 dargestellt. In der Explosionsdarstellung gemäß Fig. 4a sieht man sehr gut, dass die Aussparung 10, 41 in der Befestigungsplatte 3b einen größeren Durchmesser aufweist als die Öffnung 4 in der Grundplatte 3a.
In Fig. 4b sieht man den verlöteten Ölkühler 1 mit angelöteter Grund- 3a und Befestigungsplatte 3b und mit eingesetzter Dichtung 2. Hier sind die im Ölkühler 1 durch das Ineinanderstapeln der wannenförmigen Wärmetransferplatten 9 entstehenden Kanäle 7, 8 für das Kühlmittel und das Öl durch Strömungspfeile angedeutet worden.In Fig. 4a and b is the cut E - E off Fig. 2 shown. In the exploded view according to Fig. 4a It can be seen very well that the recess 10 , 41 in the mounting plate 3b has a larger diameter than the opening 4 in the base plate 3a .
In Fig. 4b If you see the soldered oil cooler 1 with soldered base 3a and mounting plate 3b and with inserted seal. 2 Here, the resulting in the oil cooler 1 by the nesting of the trough-shaped heat transfer plates 9 channels 7 , 8 for the coolant and the oil have been indicated by flow arrows.

In der Fig. 5 ist die in diesem Ausführungsbeispiel gewählte Knochenform der Aussparung 10 gut zu sehen. Sie setzt sich zusammen aus zwei kreisförmigen Durchbrüchen 41 und einem die Durchbrüche 41 verbindenden Schlitz 42. Die Form der Dichtung 2 wird der Form der Aussparung 10 in dem jeweiligen Ausführungsbeispiel angepasst. Die Bohrungen 43 dienen zum Entlüften während des Lotprozesses.In the Fig. 5 is the selected in this embodiment, the bone shape of the recess 10 to see well. It is composed of two circular openings 41 and a 41 connecting the openings slot 42nd The shape of the seal 2 is adapted to the shape of the recess 10 in the respective embodiment. The holes 43 are used for venting during the soldering process.

In Fig. 6 ist ein alternatives Ausführungsbeispiel dargestellt. Es zeigt, dass die Aussparungen 10 nur aus kreisförmigen Durchbrüchen 41 bestehen ohne verbindenden Schlitz 42. Dies kann je nach Anforderung sinnvoll sein. Die Aussparungen 10 sind größer als die Öffnungen 4, 6 damit auch hier gewährleistet ist, dass die Dichtung 2 nicht in den Ölkühler hinein gedrückt wird. Die Einprägungen 20 für das Lotdepot sind rund um die Aussparungen 10, 41 angeordnet. Es sind vier einzelne Dichtungen 2 einzulegen. Die Dichtungen 2 bestehen ebenfalls aus einem dicken ringförmigen Wulst 28 mit angeformten Nasen 29 zum Festklemmen der Dichtung 2, bei der Montage des Ölkühlers 1 am Motorblock.In Fig. 6 an alternative embodiment is shown. It shows that the recesses 10 only consist of circular openings 41 without connecting slot 42 . This can be useful depending on the requirement. The recesses 10 are larger than the openings 4 , 6 so that it is ensured here that the seal 2 is not pressed into the oil cooler. The impressions 2 0 for the solder deposit are arranged around the recesses 10 , 41 . There are four individual seals 2 insert. The seals 2 also consist of a thick annular bead 28 with molded lugs 29 for clamping the seal 2 , during assembly of the oil cooler 1 on the engine block.

Im Fall des nicht gezeigten Ausführungsbeispiels, bei dem die kombinierte Grund- und Befestigungsplatte 3 nur aus einer Blechplatte aufgebaut ist, sind die Aussparungen 10 aus zwei kreisförmigen Ausnehmungen und einer sie verbindenden rechteckigen Ausnehmung zusammengesetzt. Diese rechteckige Ausnehmung kann, je nach Anforderung auch wegfallen. Die Dichtungen 2 sind je nach Fall anzupassen.In the case of the embodiment not shown, in which the combined base and mounting plate 3 is constructed only of a metal plate, the recesses 10 are composed of two circular recesses and a rectangular recess connecting them. This rectangular recess can also be omitted, depending on the requirement. The seals 2 are to be adjusted depending on the case.

Claims (8)

  1. Heat exchanger, more particularly oil cooler, constructed from trough-shaped heat transfer plates (1) which are stacked one in the other and form alternately ducts (7, 8) for the coolant and the oil, and from a combined baseplate and fastening plate (3) with through orifices (5) for fastening the oil cooler to an engine block, the combined baseplate and fastening plate (3) having two orifices (4) for the passage of the oil, and the base plate and fastening plate (3) being soldered to the stack formed from heat transfer plates (1), clearances (10) for the reception of seals (2) being provided on that side of the combined baseplate and fastening plate (3) which points away from the heat exchanger, characterized in that the combined baseplate and fastening plate (3) also has two orifices (6) for the passage of the coolant and is formed from two joined-together sheet metal plates (3a, 3b) of identical or different sheet thickness, the clearances (10) in the fastening plate (3b) having a larger cross section than the orifices (4, 6) in the baseplate (3a) and extending at least around the orfices (4, 6).
  2. Heat exchanger according to Claim 1, characterized in that the clearances (10), consisting of orifices (4, 6) for the passage of the oil and of the coolant, and the clearances (10) for receiving the seals (2) are stamped out from the fastening plate (3b).
  3. Heat exchanger according to Claims 1 and 2, characterized in that the orifices (4, 6) for the passage of the oil and the coolant are stamped out from the baseplate (3a).
  4. Heat exchanger according to one of Claims 1 to 3, characterized in that each clearance (10) is formed in the fastening plate (3b) by means of at least two perforations (41) which are connected by means of a slot (42), so that the perforations (41) and the slot (42) together have an approximately bone-shaped configuration.
  5. Heat exchanger according to one of Claims 1 to 4, characterized in that the baseplate (3a) and fastening plate (3b) are solder-plated on the side (32) facing the heat exchanger.
  6. Heat exchanger according to Claim 5, characterized in that embossing (20) for a solder repository are provided preferably in the fastening plate (3b) around the clearances (10) for receiving the seal (2).
  7. Heat exchanger according to one of the preceding claims, characterized in that the seal (2) to be inserted into the clearance (10) is a single sealing piece by means of which two orifices (4, 6) can be sealed off.
  8. Heat exchanger according to one of the preceding Claims 1 - 6, characterized in that the seals (2) to be inserted into the clearance (10) are in each case a ring-shaped sealing piece by means of which in each case an orifice (4, 6) can be sealed off.
EP04022134A 2003-10-10 2004-09-17 Heat exchanger, more particularly oil cooler Expired - Fee Related EP1522811B1 (en)

Applications Claiming Priority (2)

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DE10347181A DE10347181B4 (en) 2003-10-10 2003-10-10 Heat exchangers, in particular oil coolers
DE10347181 2003-10-10

Publications (3)

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EP1522811A2 EP1522811A2 (en) 2005-04-13
EP1522811A3 EP1522811A3 (en) 2010-09-15
EP1522811B1 true EP1522811B1 (en) 2012-12-05

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US (1) US7533717B2 (en)
EP (1) EP1522811B1 (en)
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Also Published As

Publication number Publication date
US7533717B2 (en) 2009-05-19
US20050121182A1 (en) 2005-06-09
DE10347181A1 (en) 2005-05-19
DE10347181B4 (en) 2005-12-22
EP1522811A3 (en) 2010-09-15
EP1522811A2 (en) 2005-04-13

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