EP1554534A1 - Stacked plate heat exchanger - Google Patents

Stacked plate heat exchanger

Info

Publication number
EP1554534A1
EP1554534A1 EP03750472A EP03750472A EP1554534A1 EP 1554534 A1 EP1554534 A1 EP 1554534A1 EP 03750472 A EP03750472 A EP 03750472A EP 03750472 A EP03750472 A EP 03750472A EP 1554534 A1 EP1554534 A1 EP 1554534A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
plate
plate heat
exchanger according
plates
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.)
Granted
Application number
EP03750472A
Other languages
German (de)
French (fr)
Other versions
EP1554534B1 (en
Inventor
Karsten Emrich
Daniel Hendrix
Joachim Kopp
Wolfgang Kramer
Florian Moldovan
Jens Richter
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1554534A1 publication Critical patent/EP1554534A1/en
Application granted granted Critical
Publication of EP1554534B1 publication Critical patent/EP1554534B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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

Definitions

  • the invention relates to a plate heat exchanger in stacked construction according to the preamble of patent claim 1.
  • Plate heat exchangers in stacked construction were known from DE-A 43 14 808 and DE-C 195 11 991 of the applicant. This design is inexpensive for heat exchangers in that a large number of relatively simply designed identical parts are used. According to DE-A 43 14 808, the heat exchanger can be manufactured with a single plate type, which is rotated through 180 degrees during assembly and stacking. In DE-C 195 11 991, two different plate types are used in one embodiment in order to achieve different channel heights. This is particularly advantageous if the heat exchanger from a liquid and a gaseous medium, for. B. coolant and charge air of an internal combustion engine. The connecting pieces for the charge air and the coolant are either all on this side of the stacked disc heat exchanger, for. B. the top or on two sides, d. H. the top and bottom of the heat exchanger arranged. The inlet and outlet ports are in the
  • Heat exchange media flow across the distribution and collection channels through flow channels between the stacking disks or heat exchanger plates. This results in one for both media double 90 ° deflection, which increases the pressure drop in the heat exchanger. Such a pressure drop is undesirable, in particular for guiding the charge air.
  • inlet and outlet boxes with inlet and outlet connectors are placed on the end faces of the heat exchanger block, the connectors being arranged in alignment with one another.
  • the inlet or outlet connection can also be connected to the inlet or outlet box at a predeterminable angle of up to 90 °.
  • the boxes can be formed from a bent sheet and two end plates protruding beyond the end faces. So the all-metal construction, steel or aluminum, for example, can be retained for this heat exchanger, which can thus be soldered as a whole "in one shot" in the soldering furnace.
  • the inlet and outlet boxes can also be designed as independent structural units and independently of the soldering process, in particular after the soldering process, can be connected to the heat exchanger block, for example by welding or gluing.
  • the flow channels for the first medium, for. B. the coolant is closed on the circumference, namely by a peripheral edge with a peripheral fold, which is soldered to an adjacent plate.
  • the coolant flow is thus hermetically sealed from the second medium, for example from the charge air or the exhaust gas.
  • the flow channels for the second medium are directly adjacent to the flow channels for the coolant, but the charge air flow channels on the two end faces of the heat exchanger block are largely open.
  • turbulence plates can be arranged in the flow channels for the charge air or for the exhaust gas, which are soldered to the adjacent plates and thus ensure increased strength of the heat exchanger block. Turbulence plates can also be arranged in an analogous manner in the flow channels for the coolant.
  • the distributor and collecting channels for the coolant are formed by cup-like shapes of both plates.
  • the forms lie on top of each other and are soldered in the area of their contact surfaces, so that there are continuous channels for the coolant.
  • Alternatives such as intermediate rings or sleeves and nested channel sections are also possible.
  • the cup-like features are formed outside the heat transfer block, which enables better guidance of the second medium within the heat transfer block.
  • the flow channels for the charge air are formed by a special type of plate that has lateral bevels. These bends are either angled to form an L-profile or twice to form a C-profile and thus form
  • FIG. 2 shows the charge air / coolant cooler according to FIG. 1 without air boxes
  • FIG. 3 shows the heat exchanger block of the charge air / coolant cooler
  • FIG. 4 the heat exchanger block according to FIG. 3 as a view from the front
  • FIG. 5 the heat exchanger block according to FIG. 3 as a view from the front
  • Fig. 7 shows a section of the heat exchanger block in a first
  • Fig. 8 shows a section of the heat exchanger block with a second modification
  • Fig. 9 shows a section of the heat exchanger block with a third
  • Fig. 10 shows a section of the heat exchanger block with a fourth
  • FIG. 1 shows a charge air / coolant cooler 1 in a stacked construction for an internal combustion engine of a motor vehicle with a coolant and charge air circuit, not shown.
  • the core of the charge air coolant cooler 1 consists of a heat exchanger block 2, which is closed at the top by an end plate 3 and at the end by air boxes 4, 5.
  • the heat exchanger block 2 is flowed through on the one hand by coolant, which enters through a coolant inlet connection 6 arranged on the upper side 3 and exits again through a coolant connection 7 likewise arranged on the upper side 3.
  • the charge air (heated by a compressor (not shown)) enters the charge air / coolant cooler 1 via an inlet connection 8 arranged centrally on the air box 4 and leaves it cooled after cooling through an outlet connection (not visible) which is arranged on the outlet box 5.
  • FIG. 2 shows the charge air / coolant cooler 1 without the air boxes 4 and 5 according to FIG. 1.
  • the heat exchanger block 2 has an open end face 9 and a closed side face 10 and is covered at the top by the cover plate 3 and at the bottom by a cover plate 11 ,
  • the upper plate 3 protrudes with an area 3a and the lower plate 11 with an area 11a beyond the end face 9. These two areas 3a, 11a thus form the side surfaces of the air box 4 (FIG. 1), which is bent from a sheet metal.
  • the plates 3, 11 protrude beyond the rear, invisible end face of the heat exchanger block 2, with regions 3b, 11b.
  • the air box 5 (FIG. 1) is thus designed analogously to the air box 4.
  • Fig. 3 shows a perspective view of the heat exchanger block 2, which consists of two different plate types stacked on top of one another
  • the plate of the first type is a so-called coolant plate 12, and the plate of the second type is a so-called charge air plate 13.
  • the coolant plate 12 has two circular openings 15, 16 (both plates are described in more detail with respect to FIGS. 5 and 6).
  • turbulence plates 14 for the charge air is arranged, which enters the heat exchanger block 2 via the open end face 9.
  • the heat exchanger block 2 has a closed side surface 10, which is formed by bends 13a of the charge air plates 13.
  • the opposite side surface (not visible in this illustration) is designed analogously.
  • Fig. 4 shows the heat exchanger block 2 in a view from the front, ie with a view of the end face 9 and in the flow direction of the charge air.
  • the heat exchanger block 2 is thus constructed from the coolant plates 12 and the charge air plates 13, which are alternately stacked on one another.
  • the coolant plate 12 has a trough-shaped recess 17, from which two cup-like elevations 18, 19 are formed, which have the openings 15, 16 on the inside (cf. FIG. 3).
  • the coolant disk 12 is closed at the top (in the drawing) by a flat, circumferential fold 12a.
  • the charge air disk 13 lies on this fold 12a, which thus forms a circumferential contact surface for the soldering of the two plates 12, 13 in this area with the fold 12a.
  • the charge air plate 13 extends laterally beyond the fold 12a and there has bevels 13a on both sides in the form of a C-profile.
  • the upper and lower (horizontal in the drawing) leg of the C-profile each form contact surfaces for soldering with the lower and upper leg of the adjacent C-profiles.
  • Corresponding, oppositely directed characteristics 20, 21 are arranged on the charge air plates 13 in alignment with the cup-like characteristics 18, 19 of the coolant plates 12, so that when the plates 12, 13 are stacked, characteristics 18, 20 and 19, 21 lie one on top of the other and thus one from above form downward through distribution channel 22 and a collection channel 23 for the coolant.
  • Coolant inlet and outlet are indicated by arrows with the designations KME and KMA.
  • the flow channels for the coolant thus correspond to the trough-shaped depressions 17, in which turbulence plates, also not shown, are arranged. Between each coolant plate 12, ie its air side and an adjacent charge air plate 13, turbulence inserts 14 are arranged, which are thus part of flow channels 24 for the charge air. As already mentioned, the charge air enters the heat exchanger block 2 perpendicular to the plane of the drawing and flows through it in a straight direction - apart from the deflections due to the cup-like characteristics 18 to 21.
  • FIGS. 5, 5a to 5c show different views of the coolant plate 12.
  • FIGS. 5, 5a and 5b show the rectangular plate 12 rounded at the corners with two diagonally arranged openings 15, 16 which are punched out of the plate.
  • the plate 12 is deep-drawn and has the recess 17 (see FIG. 5c), the upper edge of which merges into the circumferential flange or fold 12a.
  • the cup-like features 18, 19 adjoin the recess 17 in the region of the openings 15 and 16.
  • the illustration shows only rectangular plates 12, other geometrical shapes are also conceivable, in particular if the cup-like features are arranged outside the main flow direction.
  • FIG. 6a and 6b show. the charge air plate 13 in different views, again using the previous reference numerals.
  • the charge air plate 13 corresponds in plan (FIG. 6a) to the coolant plate 12, but is somewhat wider in the direction of the folds 13a.
  • the charge air plate 13 has a flat part 13b, which has at least the size that it covers the fold 12a of the coolant plate 12.
  • the bevels 13a form a C-profile with a vertical surface 13a and a horizontal surface 13c. The latter lies against one another on the underside 13b of the adjacent charge air plate 13 when stacked according to FIG. 4. From the flat part 13b of the charge air plate 13, the two cup-like features 20, 21 are formed with punched-out openings 25, 26, the position of which corresponds to the features 18, 19 and the openings 15, 16 of the coolant plate 12.
  • FIG. 7 shows a section of a modified embodiment of a heat exchanger block 27 with modified charge air plates 28.
  • the latter have a bevel or a vertically raised edge 28a, which has such a height h that there is an overlap a with the adjacent charge air plate 28 and thus a Contact area for the soldering is created.
  • FIG. 8 shows an enlarged section of the heat exchanger block 2 from FIG. 4 with the charge air plate 13 and the double fold 13a, 13c to form a C profile.
  • This charge air plate 13 is shown in FIG. 6 as an individual part. It can be seen here how the upper leg 13c of the C-profile rests on the underside of the flat part 13b of the charge air plate 13 and thus forms a soldering surface.
  • FIG. 9 shows a further modification of a heat exchanger block 29 with a charge air plate 30 and a modified coolant plate 31, the fold 32 of which is extended outwards.
  • the charge air plate 31 has - as also shown in FIG. 6 - a C-shaped edge profile 30a, 30c, so that the elongated fold 32 comes to rest on the leg 30c of the C-profile and thus forms a soldering surface.
  • the flat part 30b of the charge air plate 30 rests on the fold 32.
  • FIG. 10 shows a further modification of a heat exchanger block 33 with a modified coolant plate 34 and a charge air plate 35 with a vertical bend 35a.
  • the coolant plate 34 has a flange 36 which is extended to the outside and which is angled downward to a vertical folding surface 36a. Both surfaces 35a of the charge air plate 35 and 36a of the coolant plate 34 abut one another and thus form a soldering surface for forming a closed flow channel for the charge air.
  • FIG. 11 shows a further modification of a heat exchanger block 37 with a modified coolant plate 38 and a charge air plate 39, which in turn has a C-shaped folding profile 39a, 39c.
  • the coolant plate 38 has a circumferential fold 40, which is followed by a strip 40a which is offset downwards over a shoulder.
  • This strip 40a lies against the underside of the leg 39c of the C-profile of the charge air plate 39 and thus forms a soldering surface.
  • the flat part 39b of the charge air plate 39 rests on the upper side of the leg 39c, so that three wall thicknesses lie one above the other in this area. All parts of the exemplary embodiments described above are preferably made of an aluminum alloy, some with solder plating, and can therefore be brazed in the soldering furnace, "in one shot”. These plate heat exchangers are therefore sorted and recyclable.

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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)
  • Electron Tubes For Measurement (AREA)
  • Central Heating Systems (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

A plate heat exchanger comprising a plurality of plates ( 12,13 ) which are stacked against each other and which are of a first and second type in order to form flow channels for a first and second medium. The plates form a heat exchanger block ( 2 ) with an upper side and a lower side and with two opposite side surfaces ( 10 ) and front faces ( 9 ). The first flow channels are peripherally sealed for the first medium and are fluidically connected to distributor and collector channels which are arranged in a vertical position with respect to the plate plane and which lead into inlet and outlet connection pieces ( 6,7 ) which are respectively arranged on the upper side and/or lower side ( 3,11 ). The second flow channels are open at the front surfaces ( 9 ) thereof and are sealed at the side surfaces ( 10 ) thereof. The open sides ( 9 ) form an inlet and outlet plane for the second medium.

Description

Plattenwärmeübertrager in Stapelbauweise Stacked plate heat exchanger
Die Erfindung betrifft einen Plattenwärmeübertrager in Stapelbauweise nach dem Oberbegriff des Patentanspruches 1.The invention relates to a plate heat exchanger in stacked construction according to the preamble of patent claim 1.
Plattenwärmeübertrager in Stapelbauweise wurden durch die DE-A 43 14 808 und DE-C 195 11 991 der Anmelderin bekannt. Diese Bauweise ist für Wärmeübertrager insofern kostengünstig, als eine hohe Anzahl von relativ einfach gestalteten Gleichteilen Verwendung findet. Nach der DE-A 43 14 808 kann der Wärmeübertrager mit einem einzigen Plattentyp hergestellt werden, der beim Zusammenbau und Aufeinanderstapeln jeweils um 180 Grad gedreht wird. Bei der DE-C 195 11 991 werden in einer Ausführung zwei unterschiedliche Plattentypen verwendet, um unterschiedliche Kanalhöhen zu erreichen. Dies ist insbesondere dann vorteilhaft, wenn der Wärmeübertrager von einem flüssigen und einem gasförmigen Medium, z. B. Kühlmittel und Ladeluft einer Brennkraftmaschine durchströmt wird. Die Anschlussstutzen für die Ladeluft und das Kühlmittel sind bei diesem Stapelscheibenwärmeübertrager entweder sämtlich auf einer Seite, z. B. der Oberseite oder auf zwei Seiten, d. h. der Ober- und der Unterseite des Wärmeübertragers angeordnet. Die Ein- und Austrittsstutzen sind in derPlate heat exchangers in stacked construction were known from DE-A 43 14 808 and DE-C 195 11 991 of the applicant. This design is inexpensive for heat exchangers in that a large number of relatively simply designed identical parts are used. According to DE-A 43 14 808, the heat exchanger can be manufactured with a single plate type, which is rotated through 180 degrees during assembly and stacking. In DE-C 195 11 991, two different plate types are used in one embodiment in order to achieve different channel heights. This is particularly advantageous if the heat exchanger from a liquid and a gaseous medium, for. B. coolant and charge air of an internal combustion engine. The connecting pieces for the charge air and the coolant are either all on this side of the stacked disc heat exchanger, for. B. the top or on two sides, d. H. the top and bottom of the heat exchanger arranged. The inlet and outlet ports are in the
Regel mit Verteil- und Sammelkanälen innerhalb des Wärmeübertragerblockes fluchtend ausgerichtet, und dieUsually aligned with distribution and collection channels within the heat exchanger block, and the
Wärmetauschermedien strömen quer zu den Verteil- und Sammelkanälen durch Strömungskanäle zwischen den Stapelscheiben bzw. Wärmeübertragerplatten. Dadurch ergibt sich für beide Medien eine doppelte 90°-Umlenkung, die den Druckabfall im Wärmeübertrager erhöht. Insbesondere für die Führung der Ladeluft ist ein solcher Druckabfall unerwünscht.Heat exchange media flow across the distribution and collection channels through flow channels between the stacking disks or heat exchanger plates. This results in one for both media double 90 ° deflection, which increases the pressure drop in the heat exchanger. Such a pressure drop is undesirable, in particular for guiding the charge air.
Es ist daher Aufgabe der vorliegenden Erfindung, einen Wärmeübertrager in Stapelbauweise nach der eingangs genannten Art dahingehend zu verbessern, dass der Druckabfall zumindest für ein Medium herabgesetzt wird.It is therefore an object of the present invention to improve a heat exchanger in a stacked construction in accordance with the type mentioned at the outset in such a way that the pressure drop is reduced at least for one medium.
Die Lösung dieser Aufgabe erfolgt durch die Merkmale des Patentanspruches 1. Erfindungsgemäß erfolgt für ein Medium, also beispielsweise die Ladeluft oder das Abgas keine 90°-Umlenkung mehr, vielmehr durchströmt das gasförmige Medium den Wärmeübertrager direkt in Längsrichtung. Dies wird in Abwandlung der üblichen Stapelbauweise dadurch erreicht, dass die aufeinander gestapelten Platten nur an zwei sich gegenüberliegenden Seiten geschlossen und an den beiden Stirnseiten offen ausgebildet sind. Die Platten für das andere Medium, also beispielsweise das Kühlmittel sind dagegen - wie bisher üblich - umfangseitig geschlossen und mit je einem Verteiler- und einem Sammelkanal verbunden. Vorteilhaft ist ferner, dass man die kostengünstige Stapelbauweise bei gleichzeitiger Reduzierung des Druckabfalls für ein gasförmiges Medium beibehalten kann.This object is achieved by the features of claim 1. According to the invention, there is no longer a 90 ° deflection for a medium, for example the charge air or the exhaust gas, but rather the gaseous medium flows directly through the heat exchanger in the longitudinal direction. This is achieved in a modification of the usual stacked construction in that the plates stacked on top of one another are closed only on two opposite sides and are open on the two end faces. The plates for the other medium, for example the coolant, on the other hand, are closed on the circumference, as was previously the case, and each is connected to a distributor and a collecting channel. It is also advantageous that the inexpensive stack construction can be maintained while simultaneously reducing the pressure drop for a gaseous medium.
Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous embodiments of the invention result from the subclaims.
Nach einer vorteilhaften Weiterbildung der Erfindung sind auf die Stirnflächen des Wärmeübertragerblockes Ein- und Austrittskästen mit Ein- und Austrittsstutzen aufgesetzt, wobei die Stutzen zueinander fluchtend angeordnet sind. Dadurch wird ein besonders geringer Druckabfall für das gasförmige Medium, z. B. Ladeluft, Abgas erreicht. Wenn es die Einbauverhältnisse erfordern kann der Eintritts- bzw. Austrittsstutzen auch unter einem vorgebbaren Winkel bis 90° mit dem Eintritts- bzw. Austrittskasten verbunden sein. Vorteilhafterweise können die Kästen aus einem gebogenen Blech und zwei über die Stirnflächen hinausstehenden Abschlussplatten gebildet werden. Damit kann die Ganzmetallbauweise, beispielsweise aus Stahl oder Aluminium, für diesen Wärmeübertrager beibehalten werden, der somit als Ganzes „in einem Schuss" im Lötofen gelötet werden kann. Die Ein- und Austrittskästen können aber auch als eigenständige Baueinheiten ausgeführt sein und unabhängig vom Lötvorgang, insbesondere nach dem Lötvorgang, mit dem Wärmeübertragerblock beispielsweise durch Schweißen oder Kleben verbunden werden.According to an advantageous development of the invention, inlet and outlet boxes with inlet and outlet connectors are placed on the end faces of the heat exchanger block, the connectors being arranged in alignment with one another. This results in a particularly low pressure drop for the gaseous medium, e.g. B. charge air, exhaust gas reached. If the installation conditions require it, the inlet or outlet connection can also be connected to the inlet or outlet box at a predeterminable angle of up to 90 °. Advantageously, the boxes can be formed from a bent sheet and two end plates protruding beyond the end faces. So the all-metal construction, steel or aluminum, for example, can be retained for this heat exchanger, which can thus be soldered as a whole "in one shot" in the soldering furnace. However, the inlet and outlet boxes can also be designed as independent structural units and independently of the soldering process, in particular after the soldering process, can be connected to the heat exchanger block, for example by welding or gluing.
Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung sind die Strömungskanäle für das erste Medium, z. B. das Kühlmittel umfangseitig geschlossen, und zwar durch einen umlaufenden Rand mit einem umlaufenden Falz, der mit einer benachbarten Platte verlötet ist. Somit ist die Kühlmittelströmung hermetisch gegenüber dem zweiten Medium, beispielsweise gegenüber der Ladeluft oder dem Abgas, abgedichtet. Die Strömungskanäle für das zweite Medium sind den Strömungskanälen für das Kühlmittel unmittelbar benachbart, allerdings sind die Ladeluft- Strömungskanäle an den beiden Stirnseiten des Wärmetauscherblockes größtenteils offen. Zur Erhöhung der Wärmeübertragungsleistung können in den Strömungskanälen für die Ladeluft bzw. für das Abgas Turbulenzbleche angeordnet sein, die mit den benachbarten Platten verlötet sind und somit für eine erhöhte Festigkeit des Wärmeübertragerblockes sorgen. Auch in den Strömungskanälen für das Kühlmittel können Turbulenzbleche in analoger Weise angeordnet sein.According to a further advantageous embodiment of the invention, the flow channels for the first medium, for. B. the coolant is closed on the circumference, namely by a peripheral edge with a peripheral fold, which is soldered to an adjacent plate. The coolant flow is thus hermetically sealed from the second medium, for example from the charge air or the exhaust gas. The flow channels for the second medium are directly adjacent to the flow channels for the coolant, but the charge air flow channels on the two end faces of the heat exchanger block are largely open. To increase the heat transfer capacity, turbulence plates can be arranged in the flow channels for the charge air or for the exhaust gas, which are soldered to the adjacent plates and thus ensure increased strength of the heat exchanger block. Turbulence plates can also be arranged in an analogous manner in the flow channels for the coolant.
Nach einer vorteilhaften Weiterbildung der Erfindung werden die Verteilerund Sammelkanäle für das Kühlmittel durch napfartige Ausprägungen beider Platten gebildet. Die Ausprägungen liegen aufeinander und werden im Bereich ihrer Kontaktflächen verlötet, sodass sich durchgehende Kanäle für das Kühlmittel ergeben. Alternativen wie Zwischenringe oder Hülsen sowie ineinandergesteckte Kanalabschnitte sind ebenso möglich.According to an advantageous development of the invention, the distributor and collecting channels for the coolant are formed by cup-like shapes of both plates. The forms lie on top of each other and are soldered in the area of their contact surfaces, so that there are continuous channels for the coolant. Alternatives such as intermediate rings or sleeves and nested channel sections are also possible.
Bei einer anderen Ausführungsform sind die napfartigen Ausprägungen ausserhalb des Wärmeträgerblocks ausgebildet, wodurch eine bessere Führung des zweiten Mediums innerhalb des Wärmeübertragerblocks möglich ist. In vorteilhafter Ausgestaltung der Erfindung werden die Strömungskanäle für die Ladeluft durch einen speziellen Plattentyp gebildet, der seitliche Abkantungen aufweist. Diese Abkantungen sind entweder einfach zu einem L-Profil oder zweifach zu einen C-Profil abgewinkelt und bilden damitIn another embodiment, the cup-like features are formed outside the heat transfer block, which enables better guidance of the second medium within the heat transfer block. In an advantageous embodiment of the invention, the flow channels for the charge air are formed by a special type of plate that has lateral bevels. These bends are either angled to form an L-profile or twice to form a C-profile and thus form
Anlageflächen mit den jeweils benachbarten Scheiben. Im Bereich dieser Anlage- bzw. Kontaktflächen werden die Scheiben miteinander verlötet und bilden somit die nach außen abgeschlossenen Strömungskanäle für die Ladeluft, d. h. auch die seitlichen Abschlusswände des Wärmeübertragerblockes.Contact surfaces with the adjacent panes. In the area of these contact or contact surfaces, the panes are soldered to one another and thus form the flow channels for the charge air, which are closed off from the outside. H. also the side end walls of the heat exchanger block.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben. Es zeigenExemplary embodiments of the invention are shown in the drawings and are described in more detail below. Show it
Fig. 1 einen Ladeluft/Kühlmittelkühler,1 shows a charge air / coolant cooler,
Fig. 2 den Ladeluft/Kühlmittelkühler gemäß Fig. 1 ohne Luftkästen, Fig. 3 den Wärmeübertragerblock des Ladeluft/Kühlmittelkühlers nach2 shows the charge air / coolant cooler according to FIG. 1 without air boxes, FIG. 3 shows the heat exchanger block of the charge air / coolant cooler
Fig. 1 bzw. Fig. 2 in perspektivischer Darstellung, Fig. 4 den Wärmeübertragerblock gemäß Fig. 3 als Ansicht von vorne, Fig. 5,1 or 2 in a perspective view, FIG. 4 the heat exchanger block according to FIG. 3 as a view from the front, FIG. 5,
5a, b, c einen ersten Plattentyp ( Kühlmittelplatte) in verschiedenen5a, b, c a first plate type (coolant plate) in different
Ansichten, Fig. 6,Views, Fig. 6,
6a, 6b einen zweiten Plattentyp (Ladeluftplatte) in verschiedenen Ansichten,6a, 6b a second plate type (charge air plate) in different views,
Fig. 7 einen Ausschnitt des Wärmeübertragerblockes in einer erstenFig. 7 shows a section of the heat exchanger block in a first
Abwandlung, Fig. 8 einen Ausschnitt des Wärmeübertragerblockes mit einer zweiten Abwandlung, Fig. 9 einen Ausschnitt des Wärmeübertragerblockes mit einer drittenModification, Fig. 8 shows a section of the heat exchanger block with a second modification, Fig. 9 shows a section of the heat exchanger block with a third
Abwandlung, Fig. 10 einen Ausschnitt des Wärmeübertragerblockes mit einer viertenModification, Fig. 10 shows a section of the heat exchanger block with a fourth
Abwandlung und Fig. 11 einen Ausschnitt des Wärmeübertragerblockes mit einer fünften Abwandlung. Fig. 1 zeigt einen Ladeluft/Kühlmittelkühler 1 in Stapelbauweise für einen Verbrennungsmotor eines Kraftfahrzeuges mit einem nicht dargestellten Kühlmittel- und Ladeluftkreislauf. Der Ladeluft Kühlmittelkühler 1 besteht in seinem Kern aus einem Wärmeübertragerblock 2, der nach oben durch eine Abschlussplatte 3 und stirnseitig durch Luftkästen 4, 5 abgeschlossen wird. Der Wärmeübertragerblock 2 wird einerseits von Kühlmittel durchströmt, welches durch einen auf der Oberseite 3 angeordneten Kühlmitteleintrittsstutzen 6 eintritt und durch einen ebenfalls auf der Oberseite 3 angeordneten Kühlmittelstutzen 7 wieder austritt. Die (durch einen nicht dargestellten Kompressor erhitzte) Ladeluft tritt über einen mittig an dem Luftkasten 4 angeordneten Eintrittsstutzen 8 in den Ladeluft/Kühlmittelkühler 1 ein und verlässt diesen abgekühlt durch einen nicht sichtbaren fluchtend angeordneten Austrittsstutzen, der am Austrittskasten 5 angeordnet ist.Modification and Fig. 11 shows a section of the heat exchanger block with a fifth modification. Fig. 1 shows a charge air / coolant cooler 1 in a stacked construction for an internal combustion engine of a motor vehicle with a coolant and charge air circuit, not shown. The core of the charge air coolant cooler 1 consists of a heat exchanger block 2, which is closed at the top by an end plate 3 and at the end by air boxes 4, 5. The heat exchanger block 2 is flowed through on the one hand by coolant, which enters through a coolant inlet connection 6 arranged on the upper side 3 and exits again through a coolant connection 7 likewise arranged on the upper side 3. The charge air (heated by a compressor (not shown)) enters the charge air / coolant cooler 1 via an inlet connection 8 arranged centrally on the air box 4 and leaves it cooled after cooling through an outlet connection (not visible) which is arranged on the outlet box 5.
Fig. 2 zeigt den Ladeluft/Kühlmittelkühler 1 ohne die Luftkästen 4 und 5 gemäß Fig. 1. Der Wärmeübertragerblock 2 weist eine offene Stirnfläche 9 und eine geschlossene Seitenfläche 10 auf und wird nach oben durch die Abschlussplatte 3 und nach unten durch eine Abschlussplatte 11 abgedeckt.FIG. 2 shows the charge air / coolant cooler 1 without the air boxes 4 and 5 according to FIG. 1. The heat exchanger block 2 has an open end face 9 and a closed side face 10 and is covered at the top by the cover plate 3 and at the bottom by a cover plate 11 ,
Die obere Platte 3 steht mit einem Bereich 3a und die untere Platte 11 mit einem Bereich 11a über die Stirnfläche 9 hinaus. Diese beiden Bereiche 3a, 11a bilden somit die Seitenflächen des Luftkastens 4 (Fig. 1), der aus einem Blech gebogen ist. In analoger Weise stehen die Platten 3, 11 über die rückwärtige, nicht sichtbare Stirnfläche des Wärmeübertragerblockes 2 hinaus, und zwar mit Bereichen 3b, 11b. Der Luftkasten 5 (Fig. 1) ist somit analog wie der Luftkasten 4 ausgebildet.The upper plate 3 protrudes with an area 3a and the lower plate 11 with an area 11a beyond the end face 9. These two areas 3a, 11a thus form the side surfaces of the air box 4 (FIG. 1), which is bent from a sheet metal. In an analogous manner, the plates 3, 11 protrude beyond the rear, invisible end face of the heat exchanger block 2, with regions 3b, 11b. The air box 5 (FIG. 1) is thus designed analogously to the air box 4.
Fig. 3 zeigt in perspektivischer Darstellung den Wärmeübertragerblock 2, der aus zwei verschiedenen aufeinander gestapelten Plattentypen mitFig. 3 shows a perspective view of the heat exchanger block 2, which consists of two different plate types stacked on top of one another
Turbulenzeinlagen aufgebaut ist. Die Platte ersten Typs ist eine so genannte Kühlmittelplatte 12, und die Platte zweiten Typs ist eine so genannte Ladeluftplatte 13. Die Kühlmittelplatte 12 weist zwei kreisförmig ausgebildete Öffnungen 15, 16 auf (beide Platten werden zu Fig. 5 und Fig. 6 genauer beschrieben). Zwischen beiden Platten 12, 13 sind Turbulenzbleche 14 für die Ladeluft angeordnet, die über die offene Stirnseite 9 in den Wärmeübertragerblock 2 eintritt. Der Wärmeübertragerblock 2 weist eine geschlossene Seitenfläche 10 auf, die durch Abkantungen 13a der Ladeluftplatten 13 gebildet wird. Die gegenüberliegende Seitenfläche (in dieser Darstellung nicht sichtbar) ist analog ausgebildet.Turbulence deposits is built up. The plate of the first type is a so-called coolant plate 12, and the plate of the second type is a so-called charge air plate 13. The coolant plate 12 has two circular openings 15, 16 (both plates are described in more detail with respect to FIGS. 5 and 6). , Between the two plates 12, 13 are turbulence plates 14 for the charge air is arranged, which enters the heat exchanger block 2 via the open end face 9. The heat exchanger block 2 has a closed side surface 10, which is formed by bends 13a of the charge air plates 13. The opposite side surface (not visible in this illustration) is designed analogously.
Fig. 4 zeigt den Wärmeübertragerblock 2 in einer Ansicht von vorn, d. h. mit Blick auf die Stirnfläche 9 und in Strömungsrichtung der Ladeluft. Der Wärmeübertragerblock 2 ist also aus den Kühlmittelplatten 12 und den Ladeluftplatten 13, die abwechselnd aufeinander gestapelt sind, aufgebaut. Die Kühlmittelplatte 12 weist eine wannenförmige Vertiefung 17 auf, aus welcher zwei napfartige Erhebungen 18, 19 ausgeprägt sind, die im Inneren die Öffnungen 15, 16 (vgl. Fig. 3) aufweisen. Die Kühlmittelscheibe 12 ist (in der Zeichnung) nach oben durch einen ebenen, umlaufenden Falz 12a abgeschlossen. Auf diesem Falz 12a liegt die Ladeluftscheibe 13, die somit mit dem Falz 12a eine umlaufende Kontaktfläche für die Verlötung der beiden Platten 12, 13 in diesem Bereich bildet. Die Ladeluftplatte 13 erstreckt sich seitlich jeweils über den Falz 12a hinaus und weist dort zu beiden Seiten Abkantungen 13a in Form eines C-Profils auf. Der obere und der untere (in der Zeichnung waagerechte) Schenkel des C-Profils bilden jeweils mit dem unteren bzw. oberen Schenkel der benachbarten C-Profile Kontaktflächen zur Verlötung. Fluchtend zu den napfartigen Ausprägungen 18, 19 der Kühlmittelplatten 12 sind an den Ladeluftplatten 13 entsprechende, entgegengesetzt gerichtete Ausprägungen 20, 21 angeordnet, sodass beim Stapeln der Platten 12, 13 jeweils Ausprägungen 18, 20 und 19, 21 aufeinander liegen und damit einen von oben nach unten durchgehenden Verteilerkanal 22 und einen Sammelkanal 23 für das Kühlmittel bilden. Kühlmitteleintritt und Kühlmittelaustritt sind durch Pfeile mit den Bezeichnungen KME und KMA gekennzeichnet. Die Strömungskanäle für das Kühlmittel entsprechen also den wannenförmigen Vertiefungen 17, in welchen auch nicht dargestellte Turbulenzbleche angeordnet sind. Zwischen je einer Kühlmittelplatte 12, d. h. deren Luftseite und einer benachbarten Ladeluftplatte 13 sind Turbulenzeinlagen 14 angeordnet, die somit Teil von Strömungskanälen 24 für die Ladeluft sind. Wie bereits erwähnt tritt die Ladeluft senkrecht zur Zeichnungsebene in den Wärmeübertragerblock 2 ein und durchströmt diesen in gerader Richtung - von den Umlenkungen aufgrund der napfartigen Ausprägungen 18 bis 21 abgesehen.Fig. 4 shows the heat exchanger block 2 in a view from the front, ie with a view of the end face 9 and in the flow direction of the charge air. The heat exchanger block 2 is thus constructed from the coolant plates 12 and the charge air plates 13, which are alternately stacked on one another. The coolant plate 12 has a trough-shaped recess 17, from which two cup-like elevations 18, 19 are formed, which have the openings 15, 16 on the inside (cf. FIG. 3). The coolant disk 12 is closed at the top (in the drawing) by a flat, circumferential fold 12a. The charge air disk 13 lies on this fold 12a, which thus forms a circumferential contact surface for the soldering of the two plates 12, 13 in this area with the fold 12a. The charge air plate 13 extends laterally beyond the fold 12a and there has bevels 13a on both sides in the form of a C-profile. The upper and lower (horizontal in the drawing) leg of the C-profile each form contact surfaces for soldering with the lower and upper leg of the adjacent C-profiles. Corresponding, oppositely directed characteristics 20, 21 are arranged on the charge air plates 13 in alignment with the cup-like characteristics 18, 19 of the coolant plates 12, so that when the plates 12, 13 are stacked, characteristics 18, 20 and 19, 21 lie one on top of the other and thus one from above form downward through distribution channel 22 and a collection channel 23 for the coolant. Coolant inlet and outlet are indicated by arrows with the designations KME and KMA. The flow channels for the coolant thus correspond to the trough-shaped depressions 17, in which turbulence plates, also not shown, are arranged. Between each coolant plate 12, ie its air side and an adjacent charge air plate 13, turbulence inserts 14 are arranged, which are thus part of flow channels 24 for the charge air. As already mentioned, the charge air enters the heat exchanger block 2 perpendicular to the plane of the drawing and flows through it in a straight direction - apart from the deflections due to the cup-like characteristics 18 to 21.
Fig. 5, 5a bis 5c zeigen verschiedene Ansichten der Kühlmittelplatte 12. Die Figuren 5, 5a und 5b zeigen die rechtwinklige, an den Ecken abgerundete Platte 12 mit zwei diagonal zueinander angeordneten Öffnungen 15, 16, die aus der Platte ausgestanzt sind. Die Platte 12 ist tiefgezogen und weist die Vertiefung 17 (vgl. Fig. 5c) auf, deren oberer Rand in den umlaufenden Flansch bzw. Falz 12a übergeht. An die Vertiefung 17 schließen sich im Bereich der Öffnungen 15 und 16 die napfartigen Ausprägungen 18, 19 an. Die Darstellung zeigt zwar nur rechtwinklige Platten 12, es sind aber auch andere geometrische Formen vorstellbar, insbesondere wenn die napfartigen Ausprägungen außerhalb der Hauptströmungsrichtung angeordnet sind.5, 5a to 5c show different views of the coolant plate 12. FIGS. 5, 5a and 5b show the rectangular plate 12 rounded at the corners with two diagonally arranged openings 15, 16 which are punched out of the plate. The plate 12 is deep-drawn and has the recess 17 (see FIG. 5c), the upper edge of which merges into the circumferential flange or fold 12a. The cup-like features 18, 19 adjoin the recess 17 in the region of the openings 15 and 16. Although the illustration shows only rectangular plates 12, other geometrical shapes are also conceivable, in particular if the cup-like features are arranged outside the main flow direction.
Fig. 6, Fig. 6a und Fig. 6b zeigen . die Ladeluftplatte 13 in verschiedenen Ansichten, wobei wiederum die vorherigen Bezugszahlen verwendet werden. Die Ladeluftplatte 13 entspricht im Grundriss (Fig. 6a) der Kühlmittelplatte 12, ist jedoch in Richtung der Abkantungen 13a etwas breiter. Die Ladeluftplatte 13 weist einen ebenen Teil 13b auf, der mindestens die Größe hat, dass er den Falz 12a der Kühlmittelplatte 12 überdeckt. Die Abkantungen 13a bilden ein C-Profil mit einer senkrechten Fläche 13a und einer horizontalen Fläche 13c. Letztere liegt beim Aufeinanderstapeln gemäß Fig. 4 an der Unterseite 13b der benachbarten Ladeluftplatte 13 an. Aus dem ebenen Teil 13b der Ladeluftplatte 13 sind die beiden napfartigen Ausprägungen 20, 21 mit ausgestanzten Öffnungen 25, 26 ausgeformt, die bezüglich ihrer Lage mit den Ausprägungen 18, 19 bzw. den Öffnungen 15, 16 der Kühlmittelplatte 12 übereinstimmen.Figures 6, 6a and 6b show. the charge air plate 13 in different views, again using the previous reference numerals. The charge air plate 13 corresponds in plan (FIG. 6a) to the coolant plate 12, but is somewhat wider in the direction of the folds 13a. The charge air plate 13 has a flat part 13b, which has at least the size that it covers the fold 12a of the coolant plate 12. The bevels 13a form a C-profile with a vertical surface 13a and a horizontal surface 13c. The latter lies against one another on the underside 13b of the adjacent charge air plate 13 when stacked according to FIG. 4. From the flat part 13b of the charge air plate 13, the two cup-like features 20, 21 are formed with punched-out openings 25, 26, the position of which corresponds to the features 18, 19 and the openings 15, 16 of the coolant plate 12.
Fig. 7 zeigt einen Ausschnitt einer abgewandelten Ausführungsform eines Wärmeübertragerblockes 27 mit abgewandelten Ladeluftplatten 28. Letztere weisen eine Abkantung bzw. einen senkrecht aufgestellten Rand 28a auf, der eine derartige Höhe h aufweist, dass eine Überlappung a mit der benachbarten Ladeluftplatte 28 gegeben und damit eine Kontaktfläche für die Verlötung geschaffen ist. Fig. 8 zeigt einen vergrößerten Ausschnitt des Wärmeübertragerblockes 2 aus Fig. 4 mit der Ladeluftplatte 13 und der zweifachen Abkantung 13a, 13c zu einem C-Profil. Diese Ladeluftplatte 13 ist in Fig. 6 als Einzelteil dargestellt. Man sieht hier, wie der obere Schenkel 13c des C-Profils an der Unterseite des ebenen Teiles 13b der Ladeluftplatte 13 anliegt und somit eine Lötfläche bildet.Fig. 7 shows a section of a modified embodiment of a heat exchanger block 27 with modified charge air plates 28. The latter have a bevel or a vertically raised edge 28a, which has such a height h that there is an overlap a with the adjacent charge air plate 28 and thus a Contact area for the soldering is created. FIG. 8 shows an enlarged section of the heat exchanger block 2 from FIG. 4 with the charge air plate 13 and the double fold 13a, 13c to form a C profile. This charge air plate 13 is shown in FIG. 6 as an individual part. It can be seen here how the upper leg 13c of the C-profile rests on the underside of the flat part 13b of the charge air plate 13 and thus forms a soldering surface.
Fig. 9 zeigt eine weitere Abwandlung eines Wärmeübertragerblockes 29 mit einer Ladeluftplatte 30 und einer abgewandelten Kühlmittelplatte 31 , deren Falz 32 nach außen verlängert ist. Die Ladeluftplatte 31 weist - wie auch in Fig. 6 dargestellt - ein C-förmiges Randprofil 30a, 30c auf, sodass der verlängerte Falz 32 auf dem Schenkel 30c des C-Profils zu liegen kommt und damit eine Lötfläche bildet. Auf dem Falz 32 liegt der ebene Teil 30b der Ladeluftplatte 30 auf. -FIG. 9 shows a further modification of a heat exchanger block 29 with a charge air plate 30 and a modified coolant plate 31, the fold 32 of which is extended outwards. The charge air plate 31 has - as also shown in FIG. 6 - a C-shaped edge profile 30a, 30c, so that the elongated fold 32 comes to rest on the leg 30c of the C-profile and thus forms a soldering surface. The flat part 30b of the charge air plate 30 rests on the fold 32. -
Fig. 10 zeigt eine weitere Abwandlung eines Wärmeübertragerblockes 33 mit einer abgewandelten Kühlmittelplatte 34 und einer Ladeluftplatte 35 mit einer senkrechten Abwinklung 35a. Die Kühlmittelplatte 34 weist einen bis nach außen verlängerten Flansch 36 auf, der nach unten zu einer senkrechten Abkantfläche 36a abgewinkelt ist. Beide Flächen 35a der Ladeluftplatte 35 und 36a der Kühlmittelplatte 34 liegen aneinander an und bilden somit eine Lötfläche zur Bildung eines abgeschlossenen Strömungskanals für die Ladeluft.10 shows a further modification of a heat exchanger block 33 with a modified coolant plate 34 and a charge air plate 35 with a vertical bend 35a. The coolant plate 34 has a flange 36 which is extended to the outside and which is angled downward to a vertical folding surface 36a. Both surfaces 35a of the charge air plate 35 and 36a of the coolant plate 34 abut one another and thus form a soldering surface for forming a closed flow channel for the charge air.
Fig. 11 zeigt eine weitere Abwandlung eines Wärmeübertragerblockes 37 mit einer abgewandelten Kühlmittelplatte 38 und einer Ladeluftplatte 39, die wiederum ein C-förmiges Abkantprofil 39a, 39c aufweist. Die Kühlmittelplatte 38 weist einen umlaufenden Falz 40 auf, an welchen sich ein nach unten über einen Absatz versetzter Streifen 40a anschließt. Dieser Streifen 40a liegt an der Unterseite des Schenkels 39c der C-Profils der Ladeluftplatte 39 an und bildet somit eine Lötfläche. Auf der Oberseite des Schenkels 39c liegt der ebene Teil 39b der Ladeluftplatte 39 an, sodass in diesem Bereich drei Wandstärken übereinander liegen. Alle Teile der oben beschriebenen Ausführungsbeispiele bestehen vorzugsweise aus einer Aluminiumlegierung, zum Teil mit Lotplattierung, und können daher im Lötofen hart gelötet werden, und zwar „in einem Schuss". Diese Plattenwärmeübertrager sind daher sortenrein und recycelbar.11 shows a further modification of a heat exchanger block 37 with a modified coolant plate 38 and a charge air plate 39, which in turn has a C-shaped folding profile 39a, 39c. The coolant plate 38 has a circumferential fold 40, which is followed by a strip 40a which is offset downwards over a shoulder. This strip 40a lies against the underside of the leg 39c of the C-profile of the charge air plate 39 and thus forms a soldering surface. The flat part 39b of the charge air plate 39 rests on the upper side of the leg 39c, so that three wall thicknesses lie one above the other in this area. All parts of the exemplary embodiments described above are preferably made of an aluminum alloy, some with solder plating, and can therefore be brazed in the soldering furnace, "in one shot". These plate heat exchangers are therefore sorted and recyclable.
BESTATIGUNGSKOPIE BESTATIGUNGSKOPIE

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Plattenwärmeübertrager in Stapelbauweise, bestehend aus einer1. plate heat exchanger in stacked construction, consisting of a
Vielzahl von aufeinander gestapelten Platten (12, 13) eines ersten und eines zweiten Typs zur Bildung von Strömungskanälen für ein erstes und ein zweites Medium, wobei die Platten (12, 13) einen Wärmeübertragerblock (2) mit einer Ober- und einer Unterseite sowie mit je zwei einander gegenüberliegenden Seitenflächen (10) undA plurality of stacked plates (12, 13) of a first and a second type for forming flow channels for a first and a second medium, the plates (12, 13) having a heat exchanger block (2) with a top and a bottom and with two opposite side surfaces (10) and
Stirnflächen (9) bilden und wobei die ersten Strömungskanäle für das erste Medium umfangseitig geschlossen und mit senkrecht zur Plattenebene angeordneten Verteiler- und Sammelkanälen, die je in auf der Ober- und /oder Unterseite (3, 11) angeordnete Eintritts- bzw. Austrittsstutzen (6, 7) münden, in Fluidverbindung stehen, dadurch gekennzeichnet, dass die zweiten Strömungskanäle (24) an den Stirnflächen (9) größtenteils offen und an den Seitenflächen (10) geschlossen ausgebildet sind und dass die offenen Seiten (9) eine Eintritts- und eine Austrittsebene für das zweite Medium bilden.Form end faces (9) and the first flow channels for the first medium are closed on the circumference and with distributor and collecting channels arranged perpendicular to the plate plane, each in inlet or outlet ports (3, 11) arranged on the top and / or bottom (3, 11). 6, 7) open, are in fluid communication, characterized in that the second flow channels (24) are largely open on the end faces (9) and closed on the side faces (10) and that the open sides (9) are an inlet and form an exit plane for the second medium.
2. Plattenwärmeübertrager nach Anspruch 1 , dadurch gekennzeichnet, dass an die Stirnflächen (9) ein Eintritts- und ein Austrittskasten (4, 5) für das zweite Medium anschließen.2. Plate heat exchanger according to claim 1, characterized in that an inlet and an outlet box (4, 5) for the second medium connect to the end faces (9).
3. Plattenwärmeübertrager nach Anspruch 2, dadurch gekennzeichnet, dass der Eintritts- und der Austrittskasten (4, 5) jeweils als eigenständige Baueinheit ausgeführt ist und mit dem Wärmeübertragerblock (2) verbindbar ist.3. Plate heat exchanger according to claim 2, characterized in that the inlet and outlet boxes (4, 5) are each designed as an independent unit and can be connected to the heat exchanger block (2).
BESTATIGUNGSKOPIE BESTATIGUNGSKOPIE
4. Plattenwärmeübertrager nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Eintritts- und Austritts kästen (4, 5) miteinander fluchtende Eintritts- und Austrittsstutzen (8) aufweisen.4. plate heat exchanger according to claim 2 or 3, characterized in that the inlet and outlet boxes (4, 5) have aligned inlet and outlet ports (8).
5. Plattenwärmeübertrager nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass Eintritts- und Austrittsstutzen (8) unter einem vorgebbaren Winkel bis 90° zur Hauptströmungsrichtung an den Eintritts- und Austrittskästen (4, 5) angeordnet sind.5. Plate heat exchanger according to claim 2 or 3, characterized in that inlet and outlet ports (8) are arranged at a predetermined angle up to 90 ° to the main flow direction on the inlet and outlet boxes (4, 5).
6. Plattenwärmeübertrager nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Eintritts- und/oder Austrittskästen (4, 5) durch gebogene Blechstreifen und über die Stirnflächen (9) vorstehende Abdeckplatten (3a, 11a; 3b, 11 b) gebildet werden.6. Plate heat exchanger according to one of the preceding claims, characterized in that the inlet and / or outlet boxes (4, 5) are formed by bent sheet metal strips and over the end faces (9) projecting cover plates (3a, 11a; 3b, 11b).
7, Plattenwärmeübertrager nach einem der vorherigen Ansprüche,, dadurch gekennzeichnet, dass die Platte ersten Typs (12) eine Vertiefung (17) mit einem umlaufenden ebenen Falz (12a) aufweist, dass die Platte zweiten Typs (13) einen ebenen, den Falz (12a) überdeckenden Bereich (13b) aufweist und dass die Platten ersten und zweiten Typs (12, 13) im Bereich der Falzes (12a) miteinander verbunden sind und zwischen sich den ersten Strömungskanal für das erste Medium einschließen.7, plate heat exchanger according to one of the preceding claims, characterized in that the plate of the first type (12) has a recess (17) with a circumferential plane fold (12a), that the plate of the second type (13) has a plane fold ( 12a) covering area (13b) and that the plates of the first and second type (12, 13) are connected to one another in the area of the fold (12a) and enclose between them the first flow channel for the first medium.
8. Plattenwärmeübertrager nach Anspruch 7, dadurch gekennzeichnet, dass die zweiten Strömungskanäle (24) für das zweite Medium jeweils benachbart zu den ersten Strömungskanälen angeordnet sind.8. Plate heat exchanger according to claim 7, characterized in that the second flow channels (24) for the second medium are each arranged adjacent to the first flow channels.
9. Plattenwärmeübertrager nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Verteiler- und Sammelkanäle (22, 23) durch zwischen den Platten (12, 13) angeordnete und diese verbindende Kanalabschnitte (18, 19; 20, 21) gebildet werden.9. plate heat exchanger according to one of claims 1 to 8, characterized in that the distributor and collecting channels (22, 23) by between the plates (12, 13) arranged and connecting these channel sections (18, 19; 20, 21) are formed ,
10. Plattenwärmeübertrager nach Anspruch 9, dadurch gekennzeichnet, dass die Kanalabschnitte als napfartige Erhebungen (18, 19; 20, 21) ausgebildet und aus den Platten (12, 13) ausgeformt sind. 10. Plate heat exchanger according to claim 9, characterized in that the channel sections are designed as cup-like elevations (18, 19; 20, 21) and are formed from the plates (12, 13).
11. Plattenwärmeübertrager nach Anspruch 10, dadurch gekennzeichnet, dass die napfartigen Erhebungen (18, 19; 20, 21) außerhalb der Hauptströmungsrichtung angeordnet sind.11. Plate heat exchanger according to claim 10, characterized in that the cup-like elevations (18, 19; 20, 21) are arranged outside the main flow direction.
12. Plattenwärmeübertrager nach einem der Ansprüche 1 bis 11 , dadurch gekennzeichnet, dass in den ersten und/oder zweiten Strömungskanälen (24) Turbulenzbleche (14) angeordnet sind.12. Plate heat exchanger according to one of claims 1 to 11, characterized in that in the first and / or second flow channels (24) turbulence plates (14) are arranged.
13. Plattenwärmeübertrager nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Platten zweiten Typs (13) seitliche Abkantungen (13a) aufweisen, die zweiten Strömungskanäle (24) nach außen abschließen und die Seitenflächen (10) bilden.13. Plate heat exchanger according to one of claims 1 to 12, characterized in that the plates of the second type (13) have lateral folds (13a), close off the second flow channels (24) and form the side surfaces (10).
14. Plattenwärmeübertrager nach Anspruch 13, dadurch gekennzeichnet, dass die Abkantungen (28a) einfach abgewinkelt sind und eine Überlappung a mit der Abkantung (28a) der benachbarten Platte (28) zweiten Typs bilden.14. Plate heat exchanger according to claim 13, characterized in that the folds (28a) are simply angled and form an overlap a with the fold (28a) of the adjacent plate (28) of the second type.
15. Plattenwärmeübertrager nach Anspruch 13, dadurch gekennzeichnet, dass die Abkantungen (13a) zweifach abgewinkelt sind und ein C-Profil (13c) aufweisen, welches an einer benachbarten Platte zweiten Typs (13) anliegt.15. Plate heat exchanger according to claim 13, characterized in that the folds (13a) are angled twice and have a C-profile (13c) which rests on an adjacent plate of the second type (13).
16. Plattenwärmeübertrager nach Anspruch 13, dadurch gekennzeichnet, dass die Abkantungen (30a) ein C-Profil (30c) aufweisen, welches an der benachbarten Platte ersten Typs (31 , 32) anliegt.16. Plate heat exchanger according to claim 13, characterized in that the folds (30a) have a C-profile (30c) which bears on the adjacent plate of the first type (31, 32).
17. Plattenwärmeübertrager nach Anspruch .13, dadurch gekennzeichnet, dass die Platten ersten Typs (34) seitliche Abkantungen (36a) aufweisen und dass die Abkantungen (36a, 35a) des ersten und zweiten Plattentyps (34, 35) entgegengesetzt gerichtet und aneinander anliegend angeordnet sind. 17. Plate heat exchanger according to claim 13, characterized in that the plates of the first type (34) have lateral folds (36a) and that the folds (36a, 35a) of the first and second plate types (34, 35) are arranged in opposite directions and adjoining one another are.
18. Plattenwärmeübertrager nach Anspruch 13, dadurch gekennzeichnet, dass die Abkantung (39a) zweifach abgewinkelt ist und ein C-Profil mit einem freien Schenkel (39c) aufweist, der einerseits an der benachbarten Platte ersten Typs (38, 40a) und anderseits an der benachbarten Platte zweiten Typs (39, 39b) anliegt.18. Plate heat exchanger according to claim 13, characterized in that the fold (39a) is angled twice and has a C-profile with a free leg (39c) which on the one hand on the adjacent plate of the first type (38, 40a) and on the other adjacent plate of the second type (39, 39b).
19. Ladeluft-Kühlmittel-Kühler mit einem Plattenwärmeübertrager nach einem der Ansprüche 1 bis 18.19. Charge air coolant cooler with a plate heat exchanger according to one of claims 1 to 18.
20. Abgas-Kühlmittel-Kühler mit einem Plattenwärmeübertrager nach einem der Ansprüche 1 bis 18. 20. Exhaust gas coolant cooler with a plate heat exchanger according to one of claims 1 to 18.
EP03750472A 2002-10-10 2003-09-01 Stacked plate heat exchanger Expired - Lifetime EP1554534B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10247264 2002-10-10
DE10247264A DE10247264A1 (en) 2002-10-10 2002-10-10 Plate heat exchanger in stack construction
PCT/EP2003/009675 WO2004036134A1 (en) 2002-10-10 2003-09-01 Stacked plate heat exchanger

Publications (2)

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EP1554534A1 true EP1554534A1 (en) 2005-07-20
EP1554534B1 EP1554534B1 (en) 2008-04-23

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EP03750472A Expired - Lifetime EP1554534B1 (en) 2002-10-10 2003-09-01 Stacked plate heat exchanger

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US (1) US7237604B2 (en)
EP (1) EP1554534B1 (en)
CN (1) CN100501294C (en)
AT (1) ATE393367T1 (en)
AU (1) AU2003270133A1 (en)
BR (1) BR0315180A (en)
DE (2) DE10247264A1 (en)
ES (1) ES2305487T3 (en)
WO (1) WO2004036134A1 (en)

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CN1688856A (en) 2005-10-26
DE50309707D1 (en) 2008-06-05
ATE393367T1 (en) 2008-05-15
AU2003270133A1 (en) 2004-05-04
US20060011333A1 (en) 2006-01-19
EP1554534B1 (en) 2008-04-23
DE10247264A1 (en) 2004-04-29
WO2004036134A1 (en) 2004-04-29
CN100501294C (en) 2009-06-17
US7237604B2 (en) 2007-07-03
ES2305487T3 (en) 2008-11-01
BR0315180A (en) 2005-08-23

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