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EP1906130A2 - Echangeur thermique destiné au refroidissement des gaz, procédé destiné à la fabrication d'un échangeur thermique - Google Patents

Echangeur thermique destiné au refroidissement des gaz, procédé destiné à la fabrication d'un échangeur thermique Download PDF

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Publication number
EP1906130A2
EP1906130A2 EP07012634A EP07012634A EP1906130A2 EP 1906130 A2 EP1906130 A2 EP 1906130A2 EP 07012634 A EP07012634 A EP 07012634A EP 07012634 A EP07012634 A EP 07012634A EP 1906130 A2 EP1906130 A2 EP 1906130A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
flow channel
depth
connection
tubes
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Withdrawn
Application number
EP07012634A
Other languages
German (de)
English (en)
Other versions
EP1906130A3 (fr
Inventor
Albert Schmitz
Bernd GRÜNENWALD
Markus Hettig
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 EP1906130A2 publication Critical patent/EP1906130A2/fr
Publication of EP1906130A3 publication Critical patent/EP1906130A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • F02M26/32—Liquid-cooled heat exchangers
    • 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
    • F28D7/1692—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 with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • 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
    • F02M26/23—Layout, e.g. schematics
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • 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

Definitions

  • the present invention relates to a heat exchanger for exhaust gas cooling for a motor vehicle according to claim 1 and to a method for producing a heat exchanger.
  • the exhaust gas heat exchanger for motor vehicles on a tube bundle consisting of exhaust pipes, which are frontally welded to tube sheets and a housing shell, which is welded to the tube sheets.
  • the tubes, the tubesheets and the housing jacket are held in a clamping device.
  • the housing shell and the tubesheets as well as the tubes and the tubesheets are welded together at the ends in one clamping. The welding is done by at least one laser beam.
  • a tube of the heat exchanger has a pipe end, which is approximately flush with the tubesheet and is connected via a weld with the tubesheet.
  • the weld is welded through, ie it extends over the entire thickness of the tubesheet.
  • all tubes are connected to the tubesheet by a weld
  • the at least one flow channel in particular the flow channels, can be designed in particular as tubes and serve to flow through with a first medium, in particular with exhaust gas.
  • At least one bottom for receiving the flow channels has a bottom depth T.
  • the at least one bottom can in particular close the heat exchanger.
  • the at least one floor, in particular two floors, and the at least one flow channel, in particular a plurality of flow channels, are connected in a material-locking manner to the floor at a connection depth t of the floor.
  • the connection depth t is smaller than the floor depth T.
  • the at least one floor in particular the at least two floors, have at least one tapering device for tapering the floor depth in the area of the connection of the at least one floor to the at least one flow channel.
  • the tapering device in particular by the at least one recess and / or groove with the depth Tt, in particular the connection depth t, on which the at least one flow channel, in particular the flow channels, with the at least one bottom, in particular with the bottoms, materially connected are essentially fixed.
  • the tapering device in particular a geometry bevel, tapers the bottom to the connection depth t.
  • the connection depth t can be defined and / or determined in a particularly advantageous manner.
  • a further advantageous embodiment is characterized in that the at least one bottom and the at least one first flow channel are connected to the connection depth t of the floor by welding and / or soldering. In this way, a tight connection between the at least one bottom, in particular the bottoms, and the at least one flow channel, in particular the flow channels, can be produced with particular advantage.
  • the at least one tapering device is designed as at least one recess which is arranged adjacent to the at least one opening.
  • the connection depth t of the at least one floor with the at least one flow channel, in particular with the flow channels, can be generated particularly advantageously substantially precisely.
  • the at least one recess is formed circumferentially around the at least one opening. In this way, in particular in the connection region of the at least one flow channel, in particular of the flow channels, the same depth of connection t can be ensured with the base substantially everywhere in the connection region.
  • the at least one recess is formed as a shoulder and / or chamfer.
  • the connection depth t can be produced particularly advantageously and inexpensively by, in particular, by means of an abrading production method, in particular by means of milling, eroding, etc., and / or by means of a reshaping production method, in particular by embossing, pressing, punching and / or by means of a primary shaping Manufacturing process, in particular by means of Gie- ⁇ en, injection molding, die casting, etc., is generated.
  • the heat exchanger has a number of flow channels, which are designed as flat tubes.
  • the flat tubes can be particularly advantageous by means of a forming manufacturing process and / or by means of a cohesive bonding process and / or by means of a forming manufacturing process, such as extrusion, are manufactured inexpensively.
  • the flat tubes have turbulence-generating elements.
  • the heat transfer in particular the heat transfer between the first medium, in particular exhaust gas and a second medium, in particular a cooling medium, in particular a water-containing cooling liquid and / or air can be improved particularly advantageous.
  • the heat exchanger at least one housing having at least one housing wall, for receiving the at least one bottom and / or the flat tubes.
  • the at least one opening in particular the openings, is arranged adjacent to the housing wall. In this way, leaky connections between flat tube and bottom can be particularly advantageously prevented.
  • the heat exchanger is designed as a U-flow heat exchanger.
  • U-flow heat exchanger is meant a heat exchanger in which the first medium, in particular exhaust gas, can enter the heat exchanger on one side, flows through the heat exchanger and flows at the end of the heat exchanger into at least one flow channel which substantially describes the shape of a U, passes through the heat exchanger in substantially the opposite direction and exits on the same side of the heat exchanger from the heat exchanger, where it has entered the heat exchanger.
  • a further advantageous embodiment is characterized in that the heat exchanger has at least two floors and / or is designed as an I-flow heat exchanger.
  • the at least one flow channel in particular the flow channels, in particular the at least one tube, in particular the tubes such as flat tubes and / or round tubes and / or oval tubes and / or rectangular tubes, with the at least one bottom, in particular with two floors, on the connection depth t of Bodens cohesively, in particular by welding such as laser beam welding and / or electron beam welding, soldering, gluing, etc., are connected.
  • the at least one flow channel in particular the flow channels, in particular the at least one flat tube, in particular the flat tubes, are connected to the ground at the connection depth t by welding and / or soldering.
  • a particularly dense and strength-increasing and / or durable connection between the at least one floor, in particular the floors, and the at least one flow channel, in particular the at least one flat tube can be produced.
  • the flow channels in particular the flat tubes, at least partially introduced into the openings of the at least one floor and connected in a first operation, in particular in a stapling operation, at least partially cohesively with the at least one bottom become.
  • the flow channels can first of all be connected to the floor in a particularly advantageous manner such that they are fixed at least in sections to the floor.
  • the flat tubes are connected in a second operation, in particular in a finished operation, at least partially cohesively with the one bottom, in particular with the floors.
  • the flow channels, in particular the flat tubes are particularly advantageously sealed to the at least one base, in particular to the floors.
  • At least one laser beam performs at least one pendulum movement in addition to at least one advancing movement during the first operation and / or during the second operation, which is essentially perpendicular to a feed direction.
  • the flow channels, in particular the flat tubes particularly advantageous tight and safe with the at least one floor, in particular the floors, are connected.
  • FIG. 1 shows an isometric view of a heat exchanger 1, in particular an exhaust gas heat exchanger with a heat exchanger housing 2 made of metal.
  • the heat exchanger 1 is an exhaust gas heat exchanger for cooling recirculated exhaust gas for an internal combustion engine of a motor vehicle.
  • the heat exchanger 1 may be in another embodiment, a charge air cooler and / or a coolant radiator and / or an oil cooler and / or a condenser for an air conditioner and / or an evaporator for an air conditioner and / or a gas cooler for an air conditioner.
  • the heat exchanger 1 has a heat exchanger housing 2.
  • the heat exchanger housing 2 is formed of metal, in particular stainless steel or aluminum.
  • the heat exchanger housing 2 is produced in particular by means of a forming manufacturing process, such as pressing or stamping.
  • the heat exchanger housing 2 accommodates tubes, not shown, in particular flat tubes, in which a first medium M1 flows out.
  • the first medium M1 is in particular exhaust gas.
  • the first medium M1 may be charge air or refrigerant of an air conditioner or oil for a transmission of a motor vehicle or coolant, such as a hydrous coolant, or CO 2 .
  • the heat exchanger housing 2 has in the illustrated embodiment, an inlet nozzle for the entry of a second medium M2 and an outlet nozzle 6 for the exit of a second medium M2.
  • the inlet connection 5 and the outlet connection 6 can be interchanged.
  • the heat exchanger 1 in particular the exhaust gas heat exchanger, has more than one inlet connection 5 for the second medium M2 and / or more than one outlet connection 6 for the exit of the second medium M2.
  • the second medium M2 is in the illustrated embodiment, a cooling medium, in particular a water-containing cooling liquid and / or air.
  • the second medium M2 is charge air and / or exhaust or oil or refrigerant for an air conditioner and / or CO 2 .
  • the heat exchanger housing 2 is designed such that it has a substantially cuboid heat exchanger housing center section 7, to each of which a housing side section 8 connects on both sides.
  • the heat exchanger housing center section 7 has a smaller, unspecified in the illustrated embodiment width, which is less than the unspecified width of the housing side sections 8.
  • the housing center section 7 goes into the housing side section 8 such that an unspecified transition section of the heat exchanger housing the Housing center section 7 connects to the respective housing side portion 8.
  • the connecting portion is formed in the illustrated embodiment as a substantially truncated pyramidal structure of a substantially four-sided pyramid with bevelled edges.
  • the housing center section 7 and / or the respective housing side section 8 has a substantially rectangular cross-section.
  • the housing center section 7 and / or the housing side section 8 has a round and / or polygonal and / or elliptical and / or star-shaped cross section or a cross section with the combination of the aforementioned forms.
  • the heat exchanger 1 is referred to as I.
  • the unspecified flat tubes are each inserted into an opening 4 of the bottom 3 and connected to this cohesively, for example, by soldering, welding, gluing, etc.
  • an I-flow heat exchanger with two trays 3 is shown.
  • the heat exchanger 1 has only one bottom 3.
  • the heat exchanger is in this case a U-flow heat exchanger.
  • the media inlet M1E and the media outlet M1A are on the same side in a U-flow heat exchanger.
  • the first medium M1 flows in a first area of the bottom into first openings 4 and leaves the heat exchanger in another area of the floor through other openings 4.
  • FIG. 2 shows a bottom of a heat exchanger, in particular an exhaust gas heat exchanger. Identical features are provided with the same reference numerals as in FIG. 1.
  • the bottom 3 is made of a metal, in particular made of stainless steel or in another embodiment of aluminum.
  • the bottom 3 is formed of a Faserverbundtechnikstorff or of a heat-resistant plastic or ceramic.
  • the bottom 3 has a bottom frame 20, which is formed substantially circumferentially around the bottom 3.
  • the bottom frame 20 is formed integrally with the bottom 3 in the illustrated embodiment.
  • the bottom frame with the bottom 3 is materially coherent, in particular by soldering, welding, gluing, etc. connected.
  • the frame 20 is formed in another embodiment such that it is formed by means of a forming manufacturing process such as bending or crimping from the bottom 3.
  • the bottom frame 20 is arranged substantially perpendicular to an unspecified bottom surface 3.
  • the bottom frame 20 can also for better introduction into the heat exchanger housing 2 an angle between 70 ° and 120 °, in particular between 75 ° and 110 °, in particular between 80 ° and 105 °, in particular between 85 ° and 100 ° to unspecified bottom surface of the bottom 3.
  • the bottom 3 has a number of oblong holes.
  • the slots are formed as openings 4.
  • the openings 4 are formed substantially rectangular.
  • the openings 4 may be formed as round, elliptical, polygonal openings or openings of the combination of the aforementioned forms.
  • the substantially rectangular openings may have rounded corners.
  • the openings 4 are arranged like a grid.
  • the bottom has three rows, which are arranged substantially adjacent to each other and each having twelve openings 4. Adjacent to the three rows with the respective twelve openings 4, a further row each having ten openings 4 is arranged in each case. The rows of the ten openings each are arranged substantially parallel to the rows with the twelve openings each.
  • the floor has three rows of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or more than 12 openings.
  • the bottom 3 has a substantially octagonal shape.
  • the bottom has a substantially square or a quadrangular or a multiple-leaky or a round or a substantially elliptical or a star-shaped or a shape of the combination of the aforementioned forms.
  • Between adjacent openings 4 4 second bottom webs 23 are formed on the narrow side of the adjacent openings.
  • On the longitudinal side 4 first bottom webs 22 are formed between adjacent openings.
  • Figure 3 shows a sectional view through a bottom 3 with a rejuvenation device, are connected to the flat tubes cohesively. Identical features are provided with the same reference numerals as in the previous figures.
  • the flat tubes 21 are formed in the illustrated embodiment of metal, in particular stainless steel or aluminum.
  • the flat tubes 21 have a flat tube wall 30. From the flat tube wall 30 are first turbulence generating elements 31 and / or second turbulence generating elements 33. Furthermore, turbulence inserts 32 can be at least partially inserted into the flat tubes 21 and the flat tube wall 30 at least partially cohesively, in particular by soldering, welding, gluing, etc., are connected ,
  • only turbulence inserts 32 can be inserted into the flat tubes 21 and connected to them materially, in particular by welding, soldering, gluing, etc.
  • the bottom 3 has a tapering device.
  • the bottom 3 has a bottom inside 38 and a bottom outside 39. Furthermore, the floor has a floor depth T.
  • the connection depth t is the depth at which the flat tube 21 is materially connected to the bottom 3
  • the first connection 40 represents the state of the art.
  • the flat tube 21 is materially bonded over the entire depth of the bottom T, in particular by welding such as laser welding or soldering or gluing etc. to the bottom 3.
  • the floor depth T is in this case equal to the connection depth t.
  • the first weld 34 represents the cohesive connection of the flat tube 21 with the bottom 3.
  • the flat tube 21 is inserted into the bottom opening 4 and connected to the bottom 3 at the connection depth t.
  • the connection of the flat tube 21 to the bottom 3 is cohesively, in particular by welding such as laser welding, soldering, etc.
  • the flat tube 21 is connected by the second weld 35 to the bottom 3 cohesively by means of welding.
  • the weld 35 is circumferentially around the entire flat tube around- In another embodiment, welds 35 may be formed in sections around the flat tube 21 around.
  • the bottom 3 has a tapering device.
  • the tapering device is formed in the illustrated embodiment as a recess which may be formed circumferentially around the ground. In another embodiment, a plurality of recesses are formed around the opening 4 around.
  • the first recess 36 is substantially conical.
  • Another embodiment represents the second recess 37. It is a groove which has a substantially rectangular, in particular square, cross-section.
  • the first recess 36 and / or the second recess 37 may be formed circumferentially or in sections.
  • the first recess 36 and / or the second recess 37 enlarge the opening cross-section of the opening 4.
  • the recess in particular the first recess 36 and / or the second recess 37, for example by means of a transforming manufacturing process such as punching, pressing, etc. or by means of a removing Manufacturing process such as drilling, sinking, milling, turning, etc., or by means of a transforming manufacturing process directly in the production of the bottom 3 are introduced.
  • a transforming manufacturing process such as punching, pressing, etc. or by means of a removing Manufacturing process such as drilling, sinking, milling, turning, etc.
  • a transforming manufacturing process directly in the production of the bottom 3 are introduced.
  • the bottom 3 In the process of cohesive bonding, in particular welding or soldering or gluing, etc., the bottom 3 only needs to be connected to the flat tubes over the entire depth t. In particular, when welding over the entire connection depth t a simple through welding is possible. in the Area of the recess 36, 37 then takes place no more connection between the flat tube 21 and bottom. 3
  • Figure 4 shows a schematic representation of a bottom 3, which is connected to flat tubes 21 fluidly. Identical features are provided with the same reference numerals as in the previous figures.
  • no recesses are provided in the flat tube connections 51, 52, 53, 54, but there is only one connection depth t smaller than the bottom thickness T before.
  • no recess 36, 37 is introduced into the bottom 3 and at least one flat tube 21 is connected to the bottom to a connection depth t smaller the bottom thickness T cohesively, in particular by welding, soldering, gluing, etc., to the bottom 3.
  • all flat tubes 21 may be connected to the floor 3 at a connection depth t smaller than the floor depth T.
  • connection depth t Due to the lower connection depth t, in particular by the lower welding depth, and / or by the recess or taper 36, 37 in the bottom 3, the fatigue strength and durability of the heat exchanger 1, in particular the exhaust gas heat exchanger is increased. Furthermore, the working time for materially joining the flat tubes 21 with the at least one bottom 3 is reduced by the smaller connection depth t.
  • the weld root can be controlled particularly advantageous.
  • a CO 2 laser is used.
  • other lasers can be used.
  • the advancing movement of the laser is superimposed by a pendulum movement of the laser.
  • the pendulum motion is essentially in the direction perpendicular to the feed direction of the laser.
  • the flat tubes 21 are inserted into the openings 4 of the soil.
  • the flat tubes 21 of the at least one row of floors, in particular the two floors 3, and / or the heat exchanger housing 2 are clamped in a device.
  • the flat tubes 21 and the at least one bottom 3 are stapled in a first operation. In this case, the flat tubes 21 and the bottom 3 are connected to one another at a small depth.
  • the laser beam welds the flat tubes 21 to the at least one base 3 over the entire connection depth t.
  • the bottom 3 is firmly bonded to the heat exchanger housing 2, in particular by welding such as laser beam welding and / or electron beam welding, soldering, gluing, etc., and / or positively by means of bending, folding, flanging, etc.
  • the at least one bottom 3 and the heat exchanger housing 2 are connected to one another on a peripheral seam UN, in particular on a circumferential weld seam.
  • the arrow indicates the direction in which a particular laser beam at least connects a bottom 3 with the heat exchanger housing 2.
  • a laser beam welds the at least one base 3 and the heat exchanger housing 2 in the opposite direction of the arrow or both in the direction of the arrow and in the direction of the arrow.
  • the at least one flow channel in particular the flow channels, in particular the at least one tube 51, 52, 53, 54, in particular the tubes such as flat tubes 51, 52, 53, 54 and / or round tubes and / or oval tubes and / or rectangular tubes, and / or the other unspecified pipes such as flat tubes and / or round tubes and / or oval tubes and / or rectangular tubes are materially connected to the at least one bottom 3, in particular with two bottoms 3, in particular on the depth of connection t of the bottom 3, in particular by welding such as laser beam welding and / or electron beam welding, soldering, gluing, etc., connected.
  • welding such as laser beam welding and / or electron beam welding, soldering, gluing, etc.
  • a jet in particular a laser beam
  • at least one tube 51, 52, 53, 54 in particular the tubes such as flat tubes 51, 52, 53, 54 and / or round tubes and / or oval tubes and / or rectangular tubes, and / or the others unspecified pipes such as flat tubes and / or round tubes and / or oval tubes and / or rectangular tubes along the arrow direction of Rohrêtitatisnaht RBN and / or against the arrow direction of Rohrteilitatisnaht RBN.
  • the welding of the peripheral seam UN takes place in a first embodiment before welding the at least one tube 51, 52, 53, 54, in particular the tubes such as flat tubes 51, 52, 53, 54 and / or round tubes and / or oval tubes and / or rectangular tubes , and / or the other unspecified pipes such as flat tubes and / or round tubes and / or oval tubes and / or rectangular tubes along and / or against the tube bottom joint seam RBN.
  • the welding of at least a portion of the peripheral seam UN and the welding at least one tube 51, 52, 53, 54 or at least a portion of at least one tube bottom joint seam RBN in particular the tubes such as flat tubes 51, 52, 53, 54 and / or done Round tubes and / or oval tubes and / or rectangular tubes, and / or the other unspecified tubes such as flat tubes and / or round tubes and / or oval tubes and / or rectangular tubes along and / or against the Rohr foundedsnaht RBN alternately.
  • FIG. 5 shows an isometric view of another heat exchanger 16, in particular an exhaust gas heat exchanger with a plastic housing 61 and a bypass 62.
  • the same features are provided with the same reference numerals as in the previous figures.
  • the heat exchanger 60 in particular the exhaust gas heat exchanger, is an I-flow heat exchanger, ie first medium M1, in particular exhaust gas, first flows into the heat exchanger 60 via the media inlet side M1E and leaves the heat exchanger through the media outlet side M1A.
  • the heat exchanger 60 has a heat exchanger housing 61.
  • the heat exchanger housing 61 is reinforced with unspecified reinforcing ribs 67, which are designed in one piece with the heat exchanger housing 61.
  • the housing 61 has a unspecified first flange and a unspecified second flange.
  • the first unspecified Flange has a number, in particular four, unspecified first Flanschijnschijnmaschinetechnisch for the passage of fasteners, such as screws, on.
  • a first bottom 63 is arranged.
  • the first floor 63 at least partially contacts the first flange.
  • the first floor 63 has a number of openings 4 and a bypass opening 64.
  • the bottom 63 has a number, in particular four first floor connection openings for the passage through of connecting elements, such as screws.
  • the heat exchanger housing 61 is formed of plastic or of a fiber composite material.
  • the heat exchanger housing 61 is produced by means of an urinal manufacturing process, such as injection molding, in particular plastic injection molding.
  • the heat exchanger 60 has a further bottom 3.
  • the second floor 3 touches a second unspecified flange at least in sections.
  • the bottom 3, in particular the two bottoms 3, furthermore have a bypass opening 64.
  • a bypass serves to bypass, for example, exhaust gas around the radiator, so that the exhaust gas conducted through the bypass is not cooled.
  • the first bottom and the first flange and the second bottom and the second flange are connected by connecting elements, not shown.
  • the at least one bottom 3 can be connected to the unspecified flange, for example by means of a corrugated chamfer flanging.
  • the heat exchanger 60 can be traversed either completely through the bypass 62 via the bypass opening 64 and the second bypass opening, not shown, in the region of the second floor. Furthermore, the heat exchanger 60 completely over the flow channels, in particular the tubes, in particular the flat tubes 21, with the first medium M1, in particular exhaust gas, are flowed through. Furthermore, the heat exchanger housing has an inlet connection 65 for the admission of a cooling medium, in particular of the second medium M2, and an outlet connection 66.
  • the inlet connection 65 and / or the outlet connection 66 are substantially tubular in the illustrated embodiment. In another embodiment, the inlet nozzle 65 and / or the outlet nozzle 66 may be formed as a pipe bend portion.
  • the inlet nozzle 65 and / or the outlet nozzle 66 has in the illustrated embodiment has a substantially circular cross-section.
  • the inlet nozzle 65 and / or the outlet nozzle 66 may have a substantially rectangular and / or elliptical and / or polygonal cross section or a cross section of the combination of the aforementioned forms.
  • FIG. 6 shows an isometric illustration of a further exemplary embodiment of an exhaust gas heat exchanger, in particular of a U-flow heat exchanger. Identical features are provided with the same reference numerals as in the previous figures.
  • the inlet connection 65 is fed to the heat exchanger housing 71 of the heat exchanger 70 and discharged from the housing 71 again via the outlet connection 66.
  • the inlet nozzle 65 and the outlet nozzle 66 may be just reversed.
  • the heat exchanger housing 71 is formed from a conditionally heat-resistant material, in particular plastic.
  • the inlet nozzle 65, the outlet nozzle 66 and the attachment portion 73 are formed integrally with the housing 71.
  • the inlet connection 65 and / or the outlet connection 66 and / or the attachment section 73 are in particular by injection molding formed of a plastic. From the heat exchanger housing 71 stiffening struts or reinforcing ribs 67 are formed.
  • the reinforcing ribs 67 are in particular formed integrally with the housing 71.
  • the reinforcing ribs 67 are arranged substantially parallel to one another and / or substantially perpendicular to one another. Further, stiffening struts 67 may have an angle substantially from 0 ° to 90 °.
  • the bottom 3 has openings 4.
  • the openings 4 are formed substantially as oval slots.
  • the openings 4 in particular pipes, not shown, in particular flat tubes, with, for example, winglets, inserted and with the bottom 3 cohesively, in particular by welding, soldering, gluing, etc., connected.
  • the openings 4 are arranged in a number of pipe-opening rows, wherein the pipe-opening rows are arranged substantially parallel to each other.
  • the bottom 3 is substantially square and formed with rounded corners.
  • the bottom has a round, an oval or another shape or a combination of the aforementioned forms.
  • tongues are formed from the bottom, which tongues are formed essentially in the direction M1A. By means of, for example, a crimping method, in particular by corrugated slot crimping, the tongues are reshaped in such a way that they are positively connected to an invisible collar of the housing 71.
  • FIG. 7 shows a sectional view AA of a heat exchanger 70 from FIG. 6. Identical features are provided with the same reference numerals as in the previous figures.
  • the heat exchanger 70 is designed as a U-flow heat exchanger, ie first medium M1, in particular exhaust gas, flows in the direction of flow
  • the first medium M1E via bottom openings 4 through the bottom 3 in the first flat tubes 21, flows through this, enters a deflection 74, enters a second bottom 3 in other flat tubes 21, flows through them and leaves the heat exchanger 70 through openings 4 in the first Bottom 3.
  • Feeder 65 and Abwehrstutzen 66 may be arranged vice versa in another embodiment.
  • the inlet connection 65 and / or the outlet connection 66 can be arranged offset relative to one another, for example on different sides of the housing 71.
  • the inlet nozzle 65 and / or the outlet nozzle 66 have an unspecified nose, which is in particular formed circumferentially around the inlet nozzle 65 and / or to the outlet nozzle 66.
  • the unspecified nose serves in particular as a latching element for example, at least one hose member which is connected to the inlet nozzle 65 and / or the outlet nozzle 66.
  • the bottom 3 is produced in particular by a forming process, in particular by punching and / or embossing.
  • the bottom 3 is positively connected in the illustrated embodiment, in particular by screws, with the heat exchanger housing 71.
  • the bottom is connected to the housing 71 by a forming process, for example crimping, in particular corrugated slot crimping.
  • a sealing element 72 in particular an O-ring, can be introduced or introduced.
  • the sealing element 72 is for example a rubber element. In another embodiment, not shown, the sealing element 72 is introduced by introducing, in particular injecting, a sealing material in the unspecified groove.
  • unspecified housing interior of the housing 71 are a plurality of tubes 21, in particular of steel, preferably made of stainless steel, introduced and arranged such that adjacent tubes 21 are arranged substantially parallel to each other and in the direction of M1A or M1 E.
  • other materials, in particular metals, such as steel or aluminum, or fiber composites for the tubes 21 can be used.
  • the tubes 21 have first turbulence-generating elements 31 and second turbulence-generating elements 33, such as knobs or winglets.
  • the first turbulence-generating elements 31 and / or the second turbulence-generating elements 33 are formed, for example by a transforming manufacturing process such as stamping or embossing, from the tube wall into the tube interior and / or formed from the tube wall to the outside in the direction of an adjacent tube 21.
  • the turbulence-generating elements 31, 33 or the turbulence insert 32 in particular improve the heat transfer and / or the heat transfer between the first medium M1, in particular the exhaust gas, and the second medium M2, in particular the cooling medium.
  • the turbulence-generating elements 31, 33 also support adjacent tubes 21 from each other and / or ensure the distance between adjacent tubes 21.
  • the tubes 21 are inserted through openings 4 in the bottom 3 in the bottom 3 and with this cohesively, in particular by welding, soldering , Gluing etc. and / or positively connected.
  • a deflection element 64 is substantially cup-shaped and causes the deflection of the flow direction of the first medium M1 substantially by 180 °.
  • the deflection element moves the deflection of the flow direction of the first medium M1 by an angle of 0 ° to 180 °.
  • the deflecting element 74 has an unspecified receptacle of the housing and is connected to this form-fitting and / or material fit.
  • the housing 71 has a housing web 75.
  • the housing web 75 is formed integrally with the housing 71.
  • the housing web 75 forms a stop for a flow blocking element, not shown, which in particular causes the flow of a front pipe portion of the tubes 21 with the second medium M2.
  • the housing web 75 itself represents the storage element.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP07012634A 2006-07-06 2007-06-28 Echangeur thermique destiné au refroidissement des gaz, procédé destiné à la fabrication d'un échangeur thermique Withdrawn EP1906130A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006031606A DE102006031606A1 (de) 2006-07-06 2006-07-06 Wärmetauscher zur Abgaskühlung, Verfahren zur Herstellung eines Wärmetauschers

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EP1906130A2 true EP1906130A2 (fr) 2008-04-02
EP1906130A3 EP1906130A3 (fr) 2008-04-09

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WO2008125485A1 (fr) * 2007-04-13 2008-10-23 Valeo Termico S.A. Echangeur de chaleur pour gaz, et son procede de fabrication correspondant
DE102012214480A1 (de) * 2012-06-13 2013-12-19 Eberspächer Climate Control Systems GmbH & Co. KG Wärmetauscheranordnung
CN103658989A (zh) * 2012-09-01 2014-03-26 曼柴油机和涡轮机欧洲股份公司 激光-管焊接
DE102017221725A1 (de) * 2017-12-01 2019-06-06 Wilhelm Bruckbauer Fluidkanal
CN114485250A (zh) * 2020-10-27 2022-05-13 阿特拉斯·科普柯空气动力股份有限公司 壳管式换热器和用于制造这种壳管式换热器的方法

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DE102008014376A1 (de) * 2008-03-17 2009-09-24 Behr Gmbh & Co. Kg Wärmetauscher für ein Kraftfahrzeug und Verfahren zu seiner Herstellung
ES2353793B1 (es) * 2008-08-14 2011-10-24 Valeo Termico, S.A. Intercambiador de calor para gases, en especial de los gases de escape de un motor, y su correspondiente procedimiento de fabricación.
DE102009004908A1 (de) * 2009-01-16 2010-09-16 Mahle International Gmbh Verfahren zur Herstellung eines Wärmetauschers
DE102009047620C5 (de) 2009-12-08 2023-01-19 Hanon Systems Wärmeübertrager mit Rohrbündel
DE102014214768A1 (de) * 2014-07-28 2016-01-28 Eberspächer Climate Control Systems GmbH & Co. KG Wärmetauscheranordnung, insbesondere für ein Fahrzeugheizgerät
CN108474634B (zh) * 2016-01-19 2020-05-19 林德股份公司 用于将管束式热交换器的管连接到管束式热交换器的管板的方法
DE102016213949A1 (de) * 2016-07-28 2018-02-01 Mahle International Gmbh Ladeluftkühlerrohr eines Ladeluftkühlers
DE202020005654U1 (de) 2020-11-17 2021-12-09 Wieland-Werke Aktiengesellschaft Rohrbündelwärmetauscher
MX2023005414A (es) 2020-11-17 2023-05-22 Wieland Werke Ag Intercambiador de calor de haz de tubos.

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JPS63137595A (ja) * 1986-11-28 1988-06-09 Mitsubishi Heavy Ind Ltd レ−ザシ−ル溶接方法
US5327959A (en) * 1992-09-18 1994-07-12 Modine Manufacturing Company Header for an evaporator
JPH09133492A (ja) * 1995-11-02 1997-05-20 Ebara Corp 熱交換器
JP2000213425A (ja) * 1999-01-20 2000-08-02 Hino Motors Ltd Ｅｇｒク―ラ
DE10156611A1 (de) * 2001-10-26 2003-05-08 Behr Gmbh & Co Rohrboden für Abgaswärmeübertrager

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Publication number Priority date Publication date Assignee Title
WO2008125485A1 (fr) * 2007-04-13 2008-10-23 Valeo Termico S.A. Echangeur de chaleur pour gaz, et son procede de fabrication correspondant
DE102012214480A1 (de) * 2012-06-13 2013-12-19 Eberspächer Climate Control Systems GmbH & Co. KG Wärmetauscheranordnung
US10106013B2 (en) 2012-06-13 2018-10-23 Eberspächer Climate Control Systems GmbH & Co. KG Heat exchanger arrangement
CN103658989A (zh) * 2012-09-01 2014-03-26 曼柴油机和涡轮机欧洲股份公司 激光-管焊接
DE102017221725A1 (de) * 2017-12-01 2019-06-06 Wilhelm Bruckbauer Fluidkanal
DE102017221725B4 (de) 2017-12-01 2023-11-02 Wilhelm Bruckbauer Fluidkanal
CN114485250A (zh) * 2020-10-27 2022-05-13 阿特拉斯·科普柯空气动力股份有限公司 壳管式换热器和用于制造这种壳管式换热器的方法

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DE102006031606A1 (de) 2008-01-17
EP1906130A3 (fr) 2008-04-09

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