DE102010039082A1 - Method for producing an exhaust gas heat exchanger for a motor vehicle - Google Patents
Method for producing an exhaust gas heat exchanger for a motor vehicle Download PDFInfo
- Publication number
- DE102010039082A1 DE102010039082A1 DE102010039082A DE102010039082A DE102010039082A1 DE 102010039082 A1 DE102010039082 A1 DE 102010039082A1 DE 102010039082 A DE102010039082 A DE 102010039082A DE 102010039082 A DE102010039082 A DE 102010039082A DE 102010039082 A1 DE102010039082 A1 DE 102010039082A1
- Authority
- DE
- Germany
- Prior art keywords
- housing
- tube bundle
- force
- exhaust gas
- heat exchanger
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0014—Brazing of honeycomb sandwich structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/12—Fastening; Joining by methods involving deformation of the elements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Verfahren zur Herstellung eines Abgaswärmetauschers für ein Kraftfahrzeug, bei welchem in ein vorgefertigtes Gehäuse (1) ein Abgas des Kraftfahrzeuges aufnehmendes Rohrbündel (6) befestigt wird und anschließend mit dem Gehäuse (1) verlötet wird. Um auf ein teures Lötgestell verzichten zu können, wird das Gehäuse (1) durch eine flächig angreifende Kraft (7) elastisch verformt, wobei das Rohrbündel (6) während des Angreifens der Kraft (7) in das Gehäuse (1) eingeführt wird und nach dem Positionieren des Rohrbündels (6) im Gehäuse (1) dieses von der Kraft (7) entlastet wird, wobei das Rohrbündel (6) im Inneren des Gehäuses (1) verspannt wird.Method for producing an exhaust gas heat exchanger for a motor vehicle, in which in a prefabricated housing (1) an exhaust gas of the motor vehicle receiving tube bundle (6) is attached and then with the housing (1) is soldered. In order to dispense with an expensive soldering frame, the housing (1) by a surface engaging force (7) is elastically deformed, wherein the tube bundle (6) during the engagement of the force (7) is inserted into the housing (1) and after the positioning of the tube bundle (6) in the housing (1) of the force (7) is relieved, wherein the tube bundle (6) is clamped in the interior of the housing (1).
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines Abgaswärmetauschers für ein Kraftfahrzeug, bei welchem in ein vorgefertigtes Gehäuse ein Abgas des Kraftfahrzeuges aufnehmendes Rohrbündel eingeführt und anschließend mit dem Gehäuse verlötet wird.The invention relates to a method for producing an exhaust gas heat exchanger for a motor vehicle, in which introduced into a prefabricated housing an exhaust gas of the motor vehicle receiving tube bundle and then soldered to the housing.
Es ist bekannt, dass ein Abgaswärmetauscher aus einem Gehäuse und einem Rohrbündel besteht, wobei durch das Rohrbündel nach dem Einbau des Abgaswärmetauschers in das Kraftfahrzeug ein Teil des Abgases eines Verbrennungsmotors geführt wird, welches dann abgekühlt wieder dem Verbrennungsmotor zugeführt wird. Zur Herstellung des Abgaswärmetauschers wird das Rohrbündel in das Gehäuse eingefügt, wobei der so zusammengesetzte Abgaswärmetauscher in einem Lötgestell kassettiert und verspannt wird. Anschließend werden das Gehäuse und das Rohrbündel bei einer Temperatur von annähernd 1000°C verlötet.It is known that an exhaust gas heat exchanger consists of a housing and a tube bundle, wherein a part of the exhaust gas of an internal combustion engine is passed through the tube bundle after installation of the exhaust gas heat exchanger in the motor vehicle, which is then fed back cooled the internal combustion engine. To produce the exhaust gas heat exchanger, the tube bundle is inserted into the housing, wherein the thus assembled exhaust gas heat exchanger is cassetted and braced in a soldering frame. Subsequently, the housing and the tube bundle are soldered at a temperature of approximately 1000 ° C.
Die Verspannung in einem Lötgestell ist notwendig, da infolge der thermischen Ausdehnung des Gehäuses und des Rohrbündels während des Lötprozesses diese Teile in einer gewünschten Form zueinander gehalten werden müssen. Solche Lötgestelle sind aufwändig und sehr teuer, da sie aus einer Kohlefaser, aus Keramik oder aus Graphitplatten bestehen. Außerdem muss dieses Lötgestell mit in den Lötofen eingeführt werden, weshalb zusätzlich Gewicht und Masse in den Ofen eingeführt wird. Um das Gehäuse mit dem Rohrbündel richtig zu verlöten, ist es auf Grund der Verwendung des Lötgestells notwendig, dass der vormontierte Abgaswärmetauscher in Lötofen in zwei Richtungen gelötet wird.The bracing in a soldering frame is necessary because due to the thermal expansion of the housing and the tube bundle during the soldering process, these parts must be kept in a desired shape to each other. Such solder racks are complex and very expensive, since they consist of a carbon fiber, ceramic or graphite plates. In addition, this soldering frame must be introduced into the brazing furnace, which is why weight and mass are additionally introduced into the furnace. In order to properly solder the housing to the tube bundle, it is necessary, due to the use of the soldering stand, that the pre-assembled exhaust gas heat exchanger be brazed in a brazing furnace in two directions.
Der Erfindung liegt somit die Aufgabe zugrunde, ein Verfahren zur Herstellung eines Abgaswärmetauschers anzugeben, bei welchem der Einsatz der aufwändigen Lötgestelle reduziert wird.The invention is therefore based on the object to provide a method for producing an exhaust gas heat exchanger, in which the use of the elaborate solder racks is reduced.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass das Gehäuse durch eine flächig angreifende Kraft elastisch verformt wird, wobei das Rohrbündel während des Angreifens der Kraft in das Gehäuse eingeführt wird und nach dem Positionieren des Rohrbündels im Gehäuse dieses von der Kraft entlastet wird, wobei das Rohrbündel im Inneren des Gehäuses gespannt wird. Dies hat den Vorteil, dass durch das Zusammendrücken des Gehäuses ein Fügespalt erzeugt wird, welcher den Querschnitt des Gehäuses vergrößert, so dass das Rohrbündel kraftlos in das Gehäuse eingefügt werden kann. Nach Entfernen der Kraft ist das Rohrbündel in dem Gehäuse fest eingeklemmt, wobei die Eigenspannung des Gehäuses ausreichend ist, um das Rohrbündel fest in dem Gehäuse zu positionieren. Dadurch wird verhindert, dass sich das Rohrbündel bei der weiteren Verarbeitung innerhalb des Gehäuses verschiebt. Auf Grund dieses Vorgehens kann vollständig auf die Verwendung eines Lötgestells verzichtet werden, wodurch die Kosten für die Herstellung eines Abgaswärmetauschers während des Herstellungsprozesses erheblich reduziert werden. Darüber hinaus erfolgt auch eine Zeiteinsparung bei der Montage des Abgaswärmetauschers, da ein Montieren und Demontieren des Lötgestells entfällt.According to the invention the object is achieved in that the housing is elastically deformed by a surface engaging force, wherein the tube bundle is introduced during engagement of the force in the housing and after the positioning of the tube bundle in the housing this is relieved of the force, wherein the tube bundle is stretched inside the case. This has the advantage that a joint gap is created by the compression of the housing, which increases the cross-section of the housing, so that the tube bundle can be inserted into the housing powerless. After removal of the force, the tube bundle is firmly clamped in the housing, wherein the residual stress of the housing is sufficient to fix the tube bundle firmly in the housing. This prevents the tube bundle from shifting during further processing within the housing. Due to this procedure, the use of a soldering stand can be completely dispensed with, which considerably reduces the costs for producing an exhaust gas heat exchanger during the production process. In addition, there is also a time saving in the installation of the exhaust gas heat exchanger, since a mounting and dismounting of the soldering frame is eliminated.
Vorteilhafterweise greift die Kraft an dem, einen nicht rechteckförmigen Querschnitt aufweisenden Gehäuse an. Aufgrund des nicht rechteckförmigen Querschnittes wird durch die Krafteinwirkung die Erzeugung eines Fügespaltes erleichtert.Advantageously, the force acts on the, a non-rectangular cross-section having housing. Due to the non-rectangular cross-section, the generation of a joint gap is facilitated by the action of force.
In einer Ausgestaltung, wird der nicht rechteckförmige Querschnitt des Gehäuses durch zwei nach außen gewölbt ausgebildete Seiten des Gehäuses gebildet, welche einander gegenüber liegen, wobei die Kraft flächig an mindestens einer der gewölbt ausgebildeten Seiten des Gehäuses angreift. Durch das Angreifen der Kraft auf der gewölbten Seite des Gehäuses verschieben sich die Spannungsverhältnisse innerhalb des Gehäuses. Die gezielte Formgebung des Gehäuses ist daher notwendig, um den Fügespalt auszubilden, durch welchen das Rohrbündel, ohne mechanische Widerstände überwinden zu müssen, in horizontaler Richtung in das Gehäuse eingeführt wird. Die auf die gewölbte Fläche einwirkende Kraft muss dabei so gewählt werden, dass das Gehäuse lediglich elastisch verformt wird, so dass nach dem Ablassen der Kraft das Gehäuse seine ursprüngliche Form wieder einnehmen kann. Dies ist insbesondere deshalb von besonderer Bedeutung, da das Rohrbündel anschließend in dem Gehäuse, welches seine ursprüngliche Form wiedererlangt hat, fest positioniert wird, da das Rohrbündel dann das Gehäuse auf seiner Innenseite kontaktiert.In one embodiment, the non-rectangular cross section of the housing is formed by two outwardly curved sides of the housing, which are opposite to each other, wherein the force acts flat on at least one of the curved sides of the housing. By attacking the force on the curved side of the housing, the voltage conditions within the housing move. The targeted shaping of the housing is therefore necessary to form the joint gap through which the tube bundle, without having to overcome mechanical resistance, is introduced in a horizontal direction into the housing. The force acting on the curved surface must be chosen so that the housing is only elastically deformed, so that after the release of the force, the housing can assume its original shape again. This is particularly important because the tube bundle is then firmly positioned in the housing, which has regained its original shape, since the tube bundle then contacts the housing on its inside.
In einer Variante, bei welcher das Verfahren besonders einfach durchführbar ist, ist der Querschnitt des Gehäuses annähernd als Flachoval ausgebildet, dessen die beiden gewölbten Seiten verbindenden Seitenwände annähernd geradlinig geformt sind. Beim Angreifen der Kraft auf die gewölbte Seite des Gehäuses werden die annähernd gerade ausgebildeten Seitenwände einfach nur in horizontaler Richtung verschoben, so dass sich der Fügespalt entlang dieser geradlinig ausgebildeten Seitenwände einstellt.In a variant in which the method is particularly simple to carry out, the cross-section of the housing is approximately designed as a flat oval, whose two arcuate sides connecting side walls are approximately rectilinear. When engaging the force on the curved side of the housing, the approximately straight side walls are simply moved only in the horizontal direction, so that adjusts the joint gap along this rectilinear side walls.
In einer Weiterbildung wird die flächig angreifende Kraft durch eine Presse ausgeübt. Mittels einer solchen Presse lässt sich die Verteilung der Kraft auf der gesamten Oberfläche der gewölbten Seite des Gehäuses besonders einfach ausüben. Durch dieses flächige Angreifen wird sichergestellt, dass sich der Fügespalt durchgehend durch das gesamte unter Druck stehende Gehäuse parallel zu den geradlinig ausgebildeten Seitenwänden ausbildet, wodurch das Rohrbündel kraftlos in das Gehäuse eingefügt werden kann.In a further development, the surface force is exerted by a press. By means of such a press, the distribution of the force on the entire surface of the curved side of the housing can be particularly easy exercise. This surface engagement ensures that the joint gap runs continuously through the entire pressurized housing parallel to the straight line trained side walls, whereby the tube bundle can be inserted powerless in the housing.
In einer besonders einfachen Ausführung ist das Rohrbündel vor dem Einführen in das Gehäuse an seiner dem Innenraum des Gehäuses zugewandten Fläche mit einem Lötmittel versehen und wird nach Entlastung des Gehäuses mit dem Gehäuse verlötet. Aufgrund der festen Verspannung des Rohrbündels im Gehäuse ist nur noch eine Lötrichtung notwendig, da aufgrund des Wegfallens eines Lötgestells weniger Masse in den Lötofen eingebracht wird.In a particularly simple embodiment, the tube bundle is provided with a solder prior to insertion into the housing on its surface facing the interior of the housing and is soldered to the housing after discharge of the housing. Due to the tight tension of the tube bundle in the housing only one direction of soldering is necessary because less mass is introduced into the brazing furnace due to the omission of a soldering frame.
In einer weiteren Ausführungsform wird das Gehäuse aus Edelstahl hergestellt. Durch die Verwendung des Materials Edelstahl erhält man ein Gehäuse, welches aufgrund der speziellen Formgebung des Querschnittes als Flachoval eine ausreichende Eigenspannung aufweist, die eine elastische Verformung des Gehäuses zulässt.In a further embodiment, the housing is made of stainless steel. By using the material stainless steel to obtain a housing which due to the special shape of the cross-section as a flat oval has sufficient residual stress, which allows an elastic deformation of the housing.
Die Erfindung lässt zahlreiche Ausführungsformen zu. Eine davon soll anhand der in der Zeichnung dargestellten Figuren näher erläutert werden.The invention allows numerous embodiments. One of them will be explained in more detail with reference to the figures shown in the drawing.
Es zeigt:It shows:
Gleiche Merkmale sind mit gleichen Bezugszeichen gekennzeichnet.Identical features are identified by the same reference numerals.
In
In
In einem Beispiel wird bei einer Belastung mit einer Kraft
Das Rohrbündel
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010039082A DE102010039082A1 (en) | 2010-08-09 | 2010-08-09 | Method for producing an exhaust gas heat exchanger for a motor vehicle |
PCT/EP2011/062913 WO2012019912A1 (en) | 2010-08-09 | 2011-07-27 | Method for producing an exhaust gas heat exchanger for a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010039082A DE102010039082A1 (en) | 2010-08-09 | 2010-08-09 | Method for producing an exhaust gas heat exchanger for a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010039082A1 true DE102010039082A1 (en) | 2012-02-09 |
Family
ID=44629497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102010039082A Withdrawn DE102010039082A1 (en) | 2010-08-09 | 2010-08-09 | Method for producing an exhaust gas heat exchanger for a motor vehicle |
Country Status (2)
Country | Link |
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DE (1) | DE102010039082A1 (en) |
WO (1) | WO2012019912A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016200456A1 (en) | 2016-01-15 | 2017-07-20 | Mahle International Gmbh | Exhaust gas heat exchanger |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10238882A1 (en) * | 2001-10-24 | 2003-05-08 | Behr Gmbh & Co | Heat exchanger, in particular, in the form of an exhaust gas heat exchanger, comprises a set of tubes installed in a tubeplate attached to a housing provided with means allowing it to expand |
DE102008051898A1 (en) * | 2008-10-16 | 2010-04-22 | Behr Gmbh & Co. Kg | Manufacturing an evaporator having pipe or rib containing block, header and connecting pipes, comprises soldering the evaporator without the pipes in soldering furnace, and connecting the connecting pipes to the evaporator by laser welding |
DE102009032166B3 (en) * | 2009-07-08 | 2010-09-30 | Handtmann Systemtechnik Gmbh & Co. Kg | Connecting heat exchanger components by welding and soldering, comprises initially welding and fixing the components to be soldered together by condenser discharge welding process in two-stage process and then soldering fixed components |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2302746A1 (en) * | 1973-01-20 | 1974-07-25 | Sueddeutsche Kuehler Behr | CARRIER MATRIX FOR A CATALYTIC REACTOR FOR EXHAUST GAS CLEANING IN COMBUSTION MACHINES, ESPEC. GASOLINE ENGINES OF MOTOR VEHICLES AND A MANUFACTURING PROCESS |
DE19646242C2 (en) * | 1996-11-08 | 2001-02-22 | Emitec Emissionstechnologie | Catalytic converter for a small engine |
-
2010
- 2010-08-09 DE DE102010039082A patent/DE102010039082A1/en not_active Withdrawn
-
2011
- 2011-07-27 WO PCT/EP2011/062913 patent/WO2012019912A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10238882A1 (en) * | 2001-10-24 | 2003-05-08 | Behr Gmbh & Co | Heat exchanger, in particular, in the form of an exhaust gas heat exchanger, comprises a set of tubes installed in a tubeplate attached to a housing provided with means allowing it to expand |
DE102008051898A1 (en) * | 2008-10-16 | 2010-04-22 | Behr Gmbh & Co. Kg | Manufacturing an evaporator having pipe or rib containing block, header and connecting pipes, comprises soldering the evaporator without the pipes in soldering furnace, and connecting the connecting pipes to the evaporator by laser welding |
DE102009032166B3 (en) * | 2009-07-08 | 2010-09-30 | Handtmann Systemtechnik Gmbh & Co. Kg | Connecting heat exchanger components by welding and soldering, comprises initially welding and fixing the components to be soldered together by condenser discharge welding process in two-stage process and then soldering fixed components |
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Publication number | Publication date |
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WO2012019912A1 (en) | 2012-02-16 |
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Representative=s name: GRAUEL, ANDREAS, DIPL.-PHYS. DR. RER. NAT., DE |
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Owner name: MAHLE INTERNATIONAL GMBH, DE Free format text: FORMER OWNER: BEHR GMBH & CO. KG, 70469 STUTTGART, DE Effective date: 20150223 |
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