US20110056652A1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
US20110056652A1
US20110056652A1 US12/161,748 US16174807A US2011056652A1 US 20110056652 A1 US20110056652 A1 US 20110056652A1 US 16174807 A US16174807 A US 16174807A US 2011056652 A1 US2011056652 A1 US 2011056652A1
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US
United States
Prior art keywords
heat exchanger
housing
exchanger according
disk
expansion element
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.)
Abandoned
Application number
US12/161,748
Other languages
English (en)
Inventor
Stefan Neher
Johannes Pfeffer
Alexander Steck
Helmut Weiser
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
Assigned to BEHR GMBH & CO. KG reassignment BEHR GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STECK, ALEXANDER, PFEFFER, JOHANNES, WEISER, HELMUT, NEHER, STEFAN
Publication of US20110056652A1 publication Critical patent/US20110056652A1/en
Priority to US14/665,210 priority Critical patent/US10240876B2/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • 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
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • 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
    • F28F9/0236—Header boxes; End plates floating elements
    • F28F9/0241—Header boxes; End plates floating elements floating end plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/104—Particular pattern of flow of the heat exchange media with parallel flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between 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
    • F28F2275/00—Fastening; Joining
    • F28F2275/20—Fastening; Joining with threaded elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49357—Regenerator or recuperator making

Definitions

  • the present invention relates to a heat exchanger, in particular for exhaust gas cooling, according to the preamble of patent claim 1 .
  • exhaust gas arises. Part of the exhaust gas is cooled in heat exchangers, in particular in exhaust gas heat exchangers, and is subsequently admixed with the charge air of the internal combustion engine and supplied to the internal combustion engine.
  • DE 102 18 521 A1 discloses an exhaust gas heat exchanger, in particular for motor vehicles with exhaust gas recirculation (AGR), which consists of a housing casing for a coolant and of a tube bundle, through which exhaust gas flows and around which the coolant flows and which is received in the housing via tube bottoms, the tube bundle, tube bottoms and housing forming a force flux closed on itself, a push fit being arranged in the force flux.
  • the ends of the tubes are fastened in a tube bottom which is itself welded to the housing casing.
  • the housing casing has a push fit.
  • An outer ring overlaps an inner ring and with the latter forms a slide fit.
  • the slide fit is sealed off outwardly, that is to say with respect to the atmosphere, by means of two O-rings, so that no coolant can escape outward.
  • DE 102 04 107 A1 discloses a heat exchanger, in particular exhaust gas heat exchanger for motor vehicles, with a tube bundle, through which a gaseous medium flows and around which a liquid coolant flows and the tubes of which are received with their tube ends in tube bottoms and are connected to these in a materially integral manner, and with a housing casing which surrounds the tube bundle and is connected on the end face to the tube bottoms in a materially integral manner and through which the coolant flows, the tube bottoms and housing casing being produced from a heat-resistant and corrosion-resistant metallic alloy, the housing casing having at least one peripheral expansion bead.
  • This bead gives the housing casing sufficient elasticity in the longitudinal direction of the tubes, so that the housing casing, by elastic extension, can follow the greater extension of the exhaust gas tubes, without an inadmissible deformation or an impairment of the weld seam connection between tubes and bottom and bottom and housing occurring in this case.
  • DE 102 24 263 A1 discloses an exhaust gas heat exchanger, in particular for motor vehicles with exhaust gas recirculation, consisting of a housing with a housing casing for a coolant and of a tube bundle, through which exhaust gas flows and around which the coolant flows and which is received in the housing via a first and a second tube bottom, the first tube bottom being connected firmly to the housing and therefore forming a fixed bearing for the tube bundle, and the second tube bottom being designed as an elastic plastic bottom.
  • the plastic bottom on account of its modulus of elasticity, is capable, by elastic deformation, of following certain extensions, such as occur in the tube bundle when the exhaust gas heat exchanger is in operation. This leads to an elastic bulging or deformation of the plastic bottom, with the result that inadmissible stresses in the components are avoided.
  • the object of the present invention is to improve a heat exchanger of the type initially mentioned.
  • a heat exchanger for exhaust gas cooling is proposed, with at least one housing, with a first flow duct for a first medium, with at least one second flow duct for a second medium, and with at least one bottom which is connectable to the housing, the bottom having at least one expansion element for the absorption of longitudinal extensions.
  • the first flow duct in particular the first flow ducts, may be formed by at least one tube, in particular by a number of tubes.
  • the bottom is designed, in particular, in such a way that it has an expansion element.
  • the expansion element can ensure an axial and/or radial relative movement between the bottom and housing.
  • the expansion element can ensure an axial and/or radial relative movement between at least one first bottom portion and at least one second bottom portion.
  • the expansion element can, in particular, ensure a thermal expansion of the first flow duct, in particular of at least one tube or of at least one disk.
  • the expansion element may be produced from a metal, in particular from high-grade steel, aluminum, etc.
  • the metal may preferably be an elastic metal.
  • the expansion element is produced from metal.
  • the expansion element may be connectable to the bottom in a materially integral manner by soldering, welding, etc.
  • the expansion element may thereby be produced in one piece with the bottom in a particularly simple way.
  • the expansion element is at least one embossing which, in particular, can be introduced peripherally into the bottom.
  • at least one first portion of the bottom may be relatively movable, in particular expandable, with respect to at least one second bottom portion.
  • the expansion element is expandable axially in a heat exchanger longitudinal direction.
  • the expansion element is particularly advantageously expandable into the heat exchanger longitudinal direction.
  • the expansion element is expandable radially to a heat exchanger longitudinal direction.
  • the expansion element is expandable in the direction of a thermal transverse extension of at least one flow duct, in particular of a first flow duct, such as, for example, of at least one tube.
  • the expansion element is at least one ridge.
  • a ridge can be produced by means of a forming manufacturing method, such as, for example, stamping, embossing, rolling, crimping, etc.
  • the expansion element has at least one frame element.
  • the frame element is a frame which, in particular, has an orifice and, in particular, is peripheral.
  • At least two frame elements can be arranged essentially parallel and, in particular, concentrically to one another.
  • the two, in particular several, frame elements are arranged, particularly advantageously, in such a way that they run parallel to one another.
  • the frames are particularly advantageously arranged concentrically to one another.
  • the orifice of the frame may in this case be designed to be circular, oval, rectangular or with rounded corners.
  • the orifices of the frames arranged essentially parallel to one another may be designed in such a way that they can form a cylinder or a parallelepiped.
  • the frame elements are at least in portions connectable in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc.
  • surfaces of the frame elements which, in particular, are adjacent to one another are connected to one another in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc.
  • the frame elements are at least in portions connectable with a form fit, in particular by screwing, flanging, folding, crimping, etc.
  • the frame elements are in this case particularly advantageously arranged essentially parallel to one another.
  • the expansion element is of meander-shaped design.
  • the portions which are of meander-shaped design can expand or stretch in such a way that they assume essentially a rectilinear shape under load.
  • the expansion element is a concertina.
  • a concertina can particularly advantageously be deformed in the longitudinal and/or transverse direction under load.
  • An advantageous refinement is characterized in that an expansion element is connectable to at least one diffuser.
  • the expansion element may be connected to at least one diffuser.
  • the housing is a cast housing.
  • a cast housing can particularly advantageously be produced by means of a forming manufacturing method, such as, for example, casting, in particular diecasting or chill casting or expendable mold casting.
  • connection piece and/or at least one fastening element are/is produced in one piece with the housing.
  • the at least one connection piece and/or the at least one fastening element, in particular for fastening the heat exchanger, for example, to an internal combustion engine, may particularly advantageously be produced together with the housing by means of a forming manufacturing method, such as, for example, casting, in particular expendable mold casting or diecasting.
  • the bottom is connectable to the housing in a materially integral manner, in particular by welding, adhesive bonding, etc., and/or with a form fit, in particular by screwing, flanging, folding, crimping, etc.
  • the housing has at least two housing elements which are connectable to one another in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc., and/or with a form fit, in particular by screwing, flanging, folding, crimping, etc.
  • the housing may be formed, for example, from two or a number of housing elements which consist of sheet metal and which, in particular, may be connected to one another in a materially integral manner and/or with a form fit.
  • the heat exchanger can have an I-flow throughflow.
  • a first medium enters the heat exchanger through a first orifice, flows through the heat exchanger and emerges from the heat exchanger through another orifice.
  • the heat exchanger can have a U-flow throughflow.
  • a first medium enters the heat exchanger through one orifice, flows through the heat exchanger, experiences, in particular, a reversal of direction and leaves the heat exchanger, in particular through a further orifice, on an inlet side of the first medium into the heat exchanger.
  • the heat exchanger has, in particular, only one bottom.
  • the heat exchanger can have a single-flood or multi-flood throughflow.
  • a heat exchanger for exhaust gas cooling is proposed, with at least one housing, with at least one first flow duct for a first medium, with at least one second flow duct for a second medium, with at least one bottom, with at least one diffuser, and with at least one expansion element, the at least one expansion element being arrangeable, spaced apart, spaced apart at least in portions, between the bottom and the housing, and spaced apart, spaced apart at least in portions, between the bottom and the diffuser.
  • the first flow duct for a first medium such as, for example, exhaust gas
  • the first flow duct for a first medium such as, for example, exhaust gas
  • the first flow duct for a first medium such as, for example, exhaust gas
  • the first flow duct for a first medium such as, for example, exhaust gas
  • the first flow duct for a first medium such as, for example, exhaust gas
  • the first flow duct for a first medium such as, for example, exhaust gas
  • a second medium such as, for example, a cooling medium, in particular an aqueous cooling liquid or air
  • the second flow duct may be formed, in particular, between the housing and tube walls of at least one tube or at least one disk.
  • the at least one expansion element is arranged, in particular, between the bottom and the housing and may at least in portions touch the bottom and the housing.
  • the at least one expansion element or, in particular, another expansion element is arranged between the bottom and the diffuser. The expansion element may at least in portions touch the bottom and the diffuser.
  • a first expansion element is arrangeable, spaced apart, spaced apart at least in portions, between the bottom and the housing, and a second expansion element is arrangeable, spaced apart, spaced apart at least in portions, between the bottom and the diffuser.
  • the first expansion element may at least in portions touch the bottom and the housing.
  • the second expansion element may at least in portions touch the bottom and the diffuser.
  • the at least one expansion element is a sealing element.
  • the first medium is exhaust gas and/or the second medium is a cooling medium, in particular an aqueous cooling fluid or air.
  • the first flow duct in particular the first flow ducts, are tubes, in particular flat tubes, and the second flow duct is formed between the tubes and the housing.
  • Flat tubes may be, in particular, tubes which have essentially a cross section in the form of a long hole or a rectangular cross section, two sides of the rectangle surface or of the long-hole surface being designed to be substantially longer than the other two rectangle surfaces or the other two long-hole surfaces.
  • the second flow duct in particular the second flow ducts, are tubes, in particular flat tubes, and the first flow duct is formed between the tubes and the housing.
  • the first flow duct may be formed between outer surfaces of the tubes and the housing inner wall.
  • the tubes have turbulence-generating elements.
  • the turbulence-generating elements may be embossings, such as winglets or bosses.
  • the turbulence-generating elements may be, for example, punched-out and/or formed metal sheets which, in particular, can be inserted into the tubes.
  • the turbulence-generating elements are embossings which can be introduced into the tube.
  • the embossings may be introduced into the tube by means of a forming manufacturing method.
  • the tubes touch the housing at least in portions.
  • the tubes may particularly advantageously be supported on the housing.
  • the embossings touch the housing at least in portions.
  • the embossings may particularly advantageously be supported on the housing.
  • the embossings of at least one tube touch at least in portions at least one tube adjacent to the tube.
  • the tubes touch one another by means of the embossings and are supported with respect to one another.
  • At least one first disk has a first disk topside and a first disk underside.
  • the first disk topside may be a surface on the disk and the first disk underside may be a further surface on the disk.
  • the first disk topside and the first disk underside may be located on sides of the disk which lie opposite one another.
  • At least one second disk has a second disk topside and a second disk underside.
  • the second disk topside may be a surface on the topside of the disk and the second disk underside may be a surface on the underside of the disk.
  • the second disk topside and the second disk underside may particularly advantageously be arranged on sides of the second disk which lie opposite one another.
  • a first disk is arranged adjacently in each case to a second disk, the first and the second disks forming a disk stack.
  • the first flow duct is formed between at least one first disk topside and at least one second disk underside and/or the second flow duct is formed between at least one first disk underside and at least one second disk topside.
  • the second flow duct is formed between at least one first disk topside and at least one second disk underside and/or the first flow duct is formed between at least one first disk underside and at least one second disk topside.
  • the first flow duct is formed between at least one disk and the housing.
  • the first flow duct may be formed between a plurality of disks and the inner wall of the housing.
  • the second flow duct is formed between at least one disk and the housing.
  • the second flow duct may be formed between a number of disks and an inner wall of the housing.
  • a method for producing a heat exchanger is proposed, the housing being produced by means of a forming manufacturing method.
  • the forming manufacturing method may be casting, such as, for example, expendable mold casting or diecasting.
  • the method for producing a heat exchanger is characterized in that the housing is produced by casting, in particular expendable mold casting, such as, for example, sand casting.
  • FIG. 1 shows a bottom with an expansion element in the form of an S-shaped double bead
  • FIG. 2 shows a sectional illustration of a bottom with an expansion element in the form of an S-shaped double bead
  • FIG. 3 shows a sectional illustration of an expansion element in the form of an S-shaped double bead in conjunction with a housing wall portion
  • FIG. 4 shows a sectional illustration of a further embodiment of an expansion element in the form of a concertina which is connected to the bottom outside
  • FIG. 5 a shows a sectional illustration of a further version of an expansion element in the form of a concertina which is connected to the bottom inside
  • FIG. 5 b shows a sectional illustration of a further version of an expansion element in the form of a concertina with a housing flange pointing inward
  • FIG. 6 a shows a sectional illustration of a further version of an expansion element in the form of a ridge introduced into the bottom
  • FIG. 6 b shows a sectional illustration of a further version of an expansion element in the form of a ridge introduced into the bottom, the housing flange pointing inward
  • FIG. 7 shows a sectional illustration of a housing portion in conjunction with a diffuser portion, with a first expansion element which is arranged between the housing portion and a bottom portion, and with a second expansion element which is arranged between a diffuser portion and a bottom portion,
  • FIG. 8 shows an exploded illustration of a heat exchanger in each case with a bottom, in each case with an expansion element and in each case with a diffuser,
  • FIG. 9 shows a sectional illustration of a flat tube bundle with turbulence-generating elements
  • FIG. 10 shows a disk stack with turbulence-generating elements between the disks
  • FIG. 11 shows a further version of a disk stack with turbulence-generating elements between the disks
  • FIG. 12 shows a further version as an enlarged illustration of a detail of a bottom with an expansion element.
  • FIG. 1 shows a bottom with an expansion element in the form of an S-shaped double bead.
  • the frame 2 is of essentially rectangular, in particular square design. In the exemplary embodiment illustrated, the frame 2 has four frame corners 7 . In another exemplary embodiment, not illustrated, the frame has more than four frame corners 7 or between one and four frame corners 7 .
  • the bottom fastening orifices 4 are arranged essentially in that portion of the frame 2 in which the frame corners 7 are arranged. Furthermore, at least one further bottom fastening orifice 4 is arranged in the frame 2 essentially between the bottom fastening orifices 4 which are arranged in the portion of the frame corners 7 . In this portion, the frame 2 has a circular portion 8 .
  • the bottom frame 2 is produced in one piece with the bottom plate 5 .
  • the bottom plate has essentially the bottom thickness d.
  • the bottom frame 2 is not produced in one piece with the bottom plate 5 .
  • the bottom frame 2 is then connected at least in portions to the bottom plate 5 .
  • the bottom plate 5 has a number of bottom surface orifices 6 .
  • the bottom surface orifices 6 are designed essentially as a long hole.
  • the bottom surface orifices 6 are arranged essentially parallel to one another.
  • the bottom surface orifices are arranged in six rows.
  • the six rows in each case have 16 bottom surface orifices 6 .
  • the six rows are arranged essentially parallel to one another.
  • the bottom plate 5 has at least one double bead 3 .
  • the double bead 3 is arranged essentially between the bottom frame 2 and a lattice, not designated in any more detail, which is formed, in particular, by the grid of bottom surface orifices 6 .
  • the double bead 3 consists of a first single bead and of a second single bead.
  • the bottom 1 is produced essentially by means of a forming manufacturing method, such as, for example, stamping, embossing, etc.
  • FIG. 2 shows a sectional illustration of a bottom with an expansion element in the form of an S-shaped double bead. Identical features are given the same reference symbols as in FIG. 1 .
  • the bottom 20 has a bottom outside 25 and a bottom inside 26 .
  • the bottom outside 25 is arranged essentially opposite the bottom inside 26 .
  • a media flow direction MSR runs essentially perpendicularly with respect to the bottom 20 .
  • the media flow direction MSR runs essentially from the bottom outside 25 in the direction of the bottom inside 26 .
  • the first single bead 22 and the second single bead 23 are formed in the media flow direction MSR.
  • FIG. 3 shows a sectional illustration of an expansion element in the form of an S-shaped double bead in conjunction with a housing wall portion.
  • the housing portion 31 has a flange portion 36 .
  • the flange portion 36 of a flange, not illustrated any further, is formed essentially perpendicularly to the housing portion 31 .
  • FIG. 4 shows a sectional illustration of a further embodiment of an expansion element in the form of a concertina which is connected to the bottom outside.
  • the expansion element 40 is designed as a concertina 43 .
  • the expansion element 40 or the concertina 43 has a first frame element 44 , a second frame element 47 and a third frame element 50 .
  • the first frame element 44 , the second frame element 47 and the third frame element 50 are connected at least in portions in a materially integral manner, in particular by soldering, welding, adhesive bonding, etc., and/or with a form fit, in particular by folding, flanging, crimping, screwing, etc.
  • the first frame element 44 has a first end portion, not designated in any more detail, which has a first contact portion 45 of the first frame element. Furthermore, the first frame element 44 has a second end portion, not designated in any more detail, which has a second contact portion 46 of the first frame element.
  • the first frame element 44 has essentially a kink between the first end portion and the second end portion. The kink is formed essentially peripherally.
  • the first end portion, not designated in any more detail, of the first frame element and the second end portion, not designated in any more detail, of the first frame element are designed essentially parallel to one another.
  • the second frame element 47 has a frame end portion, not designated in any more detail, which has a first contact portion 48 of the second frame element. Furthermore, the second frame element 47 has a second frame end portion, not designated in any more detail, which has a second contact portion 49 of the second frame element 47 . Essentially a kink is formed in the second frame element 47 between the first frame end portion, not designated in any more detail, of the second frame element 47 and the second frame end portion, not designated in any more detail, of the second frame element 47 . The kink, not designated in any more detail, is arranged essentially peripherally in the second frame element 47 . The first frame end portion, not designated in any more detail, of the second frame element is arranged essentially parallel to the second frame end portion, not designated in any more detail, of the second frame element 47 .
  • a third frame element 50 has a frame end portion, not designated in any more detail, of the third frame element 50 , said frame end portion having a first contact portion 51 of the third frame element 50 . Furthermore, the third frame element 50 has a second frame end portion, not designated in any more detail, which has a second contact portion 52 of the third frame element 50 .
  • a kink is introduced into the third frame element 50 between the first end portion, not designated in any more detail, of the third frame element 50 and the second end portion, not designated in any more detail, of the third frame element 50 .
  • the kink is formed essentially peripherally in the third frame element 50 .
  • the first end portion, not designated in any more detail, of the third frame element 50 is arranged essentially parallel to the second end portion, not designated in any more detail, of the third frame element 50 .
  • the housing portion 41 has a housing wall portion 55 and a housing flange portion 56 .
  • the housing flange portion 56 is the portion of a housing flange, not illustrated any further.
  • the housing flange portion 56 touches the first contact portion 45 of the first frame element at least in portions.
  • the first contact portion 45 of the first frame element is connected at least in portions to the housing flange portion 56 in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc., and/or with a form fit, in particular by crimping, folding, flanging, screwing, etc.
  • the housing flange portion 56 is formed essentially perpendicularly to the housing wall portion 55 .
  • the bottom portion 42 has a bottom outside 53 and a bottom inside 54 .
  • the bottom outside is arranged essentially parallel to the bottom inside 54 .
  • first frame element 44 , the second frame element 47 and the third frame element 50 are produced in one piece.
  • the bottom portion 42 , the first frame element 44 , the second frame element 47 and the third frame element 50 are produced in one piece.
  • the concertina 43 or the first frame element 44 and/or the second frame element 47 and/or the third frame element 50 are produced from a material with low density, such as, for example, from a metal, such as, for example, aluminum, high-grade steel, or from a plastic, such as, for example, from an elastomer, such as rubber, or from a polymer, etc.
  • the bottom portion 42 of the bottom may, in particular, be produced from a metal, for example from a metal with low density, such as, for example, aluminum or high-grade steel, or from a plastic, in particular from an elastomer or from a polymer.
  • a metal with low density such as, for example, aluminum or high-grade steel
  • a plastic in particular from an elastomer or from a polymer.
  • the housing portion 41 of the housing may be produced from a cast metal, such as, for example, from gray cast iron or from cast aluminum, in particular from diecast aluminum or from expendable mold cast aluminum, such as, for example, from sand casting.
  • a cast metal such as, for example, from gray cast iron or from cast aluminum, in particular from diecast aluminum or from expendable mold cast aluminum, such as, for example, from sand casting.
  • the housing, not illustrated, together with the housing portion 41 is produced from a plastic, such as, for example, from a thermosetting plastic or an elastomer.
  • the concertina 43 has between one and two or more than three frame elements.
  • FIG. 5 a shows a sectional illustration of a further version of an expansion element in the form of a concertina which is connected to the bottom inside. Identical features are given the same reference symbols as in the preceding figures.
  • the third frame element 50 is connected to the bottom inside 64 of the bottom portion 42 .
  • the concertina 61 has a first frame element 44 , a second frame element 47 and a third frame element 50 .
  • the bottom portion 62 has a bottom outside 63 and a bottom inside 64 .
  • the bottom outside 63 is arranged essentially parallel to the bottom inside 64 .
  • the bottom is produced in one piece with the bottom portion 62 , the first frame element 44 and/or the second frame element 47 and/or the third frame element 50 .
  • the first frame element 44 and/or the second frame element and/or the third frame element 50 and/or the bottom with the bottom portion 62 are produced, for example, from a metal, in particular with low density, such as, for example, aluminum or high-grade steel, and/or from a plastic, such as, for example, from an elastomer, rubber or from a composite fiber material.
  • the concertina 61 or the first frame element 44 and/or the second frame element 47 and/or the third frame element 50 are designed at least in portions as a sealing element.
  • FIG. 5 b shows a sectional illustration of a further version of an expansion element 65 in the form of a concertina with a housing flange 66 pointing inward. Identical elements are given the same reference symbols as in the preceding figures.
  • the tubes are connected at least in portions to the bottom, not designated in any more detail, having the bottom portion 62 in a preceding manufacturing process with a form fit and/or in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc.
  • the tubes, in particular flat tubes, connected at least in portions to the bottom are introduced through an orifice, not illustrated, in the housing of the heat exchanger into the housing interior of the heat exchanger, until the first frame element 44 at least in portions touches with the first contact portion 45 the housing flange 66 .
  • FIG. 6 a shows a sectional illustration of a further version of an expansion element in the form of a ridge introduced into the bottom. Identical features are given the same reference symbols as in the preceding figures.
  • the housing portion 41 of a housing has a housing wall portion 55 and a housing flange portion 56 .
  • the bottom portion 71 has a bottom end portion 72 with a bottom end portion surface 73 . Furthermore, the bottom portion 71 has an expansion element 70 in the form of a ridge 74 .
  • FIG. 6 b shows a sectional illustration of a further version of an expansion element 77 in the form of a ridge 74 introduced into the bottom, the housing flange pointing into the housing interior. Identical features are given the same reference symbols as in the preceding figures.
  • the housing flange 78 points in the direction of the housing interior of a housing, not designated in any more detail, having the housing portion 41 .
  • the housing portion 41 has a housing flange 78 .
  • the housing flange 78 is formed in the direction of the housing interior, not designated in any more detail. Construction space can thus be saved.
  • the bottom portion 71 of a bottom not designated in any more detail, is arranged in the housing interior of a housing, not designated in any more detail, having the housing portion 41 . Construction space can thus advantageously be saved.
  • the tubes 79 are connected at least in portions to the bottom, not designated in any more detail, having the bottom portion 71 in a preceding manufacturing process with a form fit and/or in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc.
  • the tubes 79 in particular flat tubes, connected at least in portions to the bottom are introduced through an orifice, not illustrated, in the housing of the heat exchanger into the housing interior of the heat exchanger, until the bottom end portion 72 at least in portions touches with the bottom end portion surface 73 the housing flange 78 .
  • the bottom end portion is connected at least in portions to the housing flange 78 with a form fit, in particular by means of connection elements 67 , such as screws and nuts, rivets, etc., and/or in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc.
  • FIG. 7 shows a sectional illustration of a housing portion in conjunction with a diffuser portion, with a first expansion element which is arranged between the housing portion and a bottom portion, and a second expansion element which is arranged between the diffuser portion and the bottom portion.
  • Identical features are given the same reference symbols as in the preceding figures.
  • the diffuser portion 90 of a diffuser may be designed as an inlet diffuser or as an outlet diffuser.
  • the diffuser portion 90 has a diffuser end portion 91 and a diffuser contact surface 92 .
  • the diffuser end portion 91 touches the housing flange portion 56 at least in portions.
  • the diffuser end portion 91 is connected at least in portions to the housing flange portion 56 in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc., and/or with a form fit, in particular by screwing, crimping, folding, etc.
  • the diffuser portion of the diffuser not illustrated any further, is connected to the housing flange portion 56 by means of at least one diagrammatically illustrated fastening element 93 , such as, for example, a screw.
  • the first expansion element 80 at least in portions touches with the first contact surface 86 the first bottom end portion region 84 of the bottom end portion 83 . Furthermore, the first expansion element 80 touches with the second contact surface 87 the housing flange portion 56 .
  • the first expansion element 80 is produced essentially from an elastic material, such as, for example, rubber, or another plastic. Furthermore, the first expansion element 80 is designed as a sealing element.
  • the first expansion element 80 is designed to run peripherally essentially in the form of a ring. In another exemplary embodiment, not illustrated, the first expansion element 80 may be designed as an O-ring. In the exemplary embodiment illustrated, the first expansion element 80 has an essentially rectangular cross section.
  • the first expansion element 80 may have a round and/or oval or square cross section.
  • the cross section may have a combination of the abovementioned forms.
  • a second expansion element 81 is arranged between the bottom portion 82 and the diffuser portion 90 .
  • the second expansion element 81 at least in portions touches with a first contact surface 88 the second bottom end portion contact surface 85 .
  • the first contact surface 88 is arranged parallel to the second bottom end portion contact surface 85 .
  • the first expansion element 81 at least in portions touches with the second contact surface of the second expansion element the diffuser contact surface 92 .
  • the diffuser contact surface 92 is formed parallel to the second contact surface 89 of the second expansion element.
  • the first expansion element 81 is produced at least in portions from an elastic material, such as, for example, plastic or rubber, or from another elastomer.
  • the second expansion element 81 has essentially a rectangular cross section.
  • FIG. 8 shows an exploded illustration of a heat exchanger 100 .
  • the housing 101 has a round or oval cross section.
  • the housing 101 is produced from a cast metal material.
  • the housing 101 is produced from gray cast iron or from cast steel or from aluminum.
  • Fastening bodies 102 serve for fastening the housing 101 , for example, to a drive unit, such as an internal combustion engine.
  • the fastening body 102 has an essentially rectangular material clearance 103 and an essentially round fastening orifice 104 .
  • Fastening elements can be inserted through the orifice 104 .
  • the fastening body 102 is produced essentially in one piece with the housing 101 .
  • the housing 101 has first reinforcing ribs 105 . Adjacent first reinforcing ribs are arranged essentially parallel to one another. The first reinforcing ribs 105 run essentially from a first housing flange 109 to a second housing flange 110 , or vice versa.
  • the housing 101 has second reinforcing ribs 106 .
  • Adjacent second reinforcing ribs 106 are arranged essentially parallel to one another.
  • the second reinforcing ribs 106 are arranged so as to run essentially peripherally around the housing 101 .
  • the second reinforcing ribs 106 are arranged essentially perpendicularly to the first reinforcing ribs 105 .
  • the first reinforcing ribs 105 may have an angle of between 0° and 90°, in particular of between 20° and 70°, with the second reinforcing ribs 106 .
  • the housing 101 has a first connection piece 107 and a second connection piece 108 .
  • the first connection piece 107 and/or the second connection piece 108 are/is designed essentially cylindrically.
  • coolant flows through the connection pieces 107 and 108 into the heat exchanger 100 and/or out of this.
  • the coolant is, in particular, an aqueous cooling liquid or a gas, such as, for example, air.
  • the housing 101 has a first housing flange 109 and a second housing flange 110 at the ends, not designated in any more detail.
  • the first housing flange 109 is arranged at one end and the second housing flange 110 is arranged at the other end, not designated in any more detail.
  • the first housing flange 109 and/or the second housing flange 110 are/is designed essentially as a rectangular frame with rounded corners.
  • the first housing flange 109 has at least one orifice 111 which is of essentially round design. In the exemplary embodiment illustrated, the first housing flange 109 has eight orifices 111 . In another exemplary embodiment, the first housing flange 109 and/or the second housing flange 110 may have one to eight or more than eight orifices 111 .
  • the heat exchanger 100 has a first diffuser 112 and a second diffuser 113 .
  • the first diffuser 112 is designed essentially identically to the second diffuser 113 .
  • the first diffuser 112 may be designed differently from the second diffuser 113 .
  • the first diffuser 112 has a first flange 114 and a second flange 115 .
  • the first diffuser 112 is designed essentially pyramidally as a four-sided pyramid.
  • the first flange 114 is essentially formed as a frame element from the bottom of the four-sided pyramid.
  • the second flange 115 is essentially formed from the vertex of the four-sided pyramid.
  • the first flange 114 is of essentially frame-shaped design.
  • Second fastening cylinders 117 are formed from the second housing flange. In the exemplary embodiment illustrated, the fastening cylinders 117 are identical to the fastening cylinders 116 .
  • the second flange 115 formed from the vertex of the four-sided pyramid is designed essentially as a triangular body.
  • the corners, not designated in any more detail, of the second flange are essentially rounded.
  • an orifice 120 is introduced into the second flange 115 adjacently to the corners, not designated in any more detail.
  • the flange 115 has, overall, three orifices 120 .
  • the flange 115 may have one to three or more than three orifices 120 .
  • a bottom 121 and also a first frame element 122 and a second frame element 123 are arranged, essentially parallel to one another and parallel to the first housing flange 109 and/or parallel to the first flange of the diffuser 114 , between the flange 115 and the first housing flange 109 .
  • the first frame element 122 and/or the second frame element 123 have/has orifices 124 .
  • the orifices 124 are designed as holes, not designated in any more detail.
  • the first housing flange 109 , the first flange of the diffuser 114 , the bottom 121 , the first frame element 122 and the second frame element 123 have essentially the same hole pattern.
  • FIG. 9 shows a sectional illustration of a flat tube bundle with turbulence-generating elements.
  • the flat tube bundle 200 has a number of flat tubes 201 which are arranged essentially parallel to one another.
  • the flat tube bundle 200 is introduced, in particular, into a housing 101 of the heat exchanger 100 of FIG. 8 .
  • the flat tubes 201 have a flat tube wall 202 . Furthermore, the flat tubes 201 have in each case at least one flat tube orifice 203 , in particular in each case two flat tube orifices 203 for each flat tube 201 .
  • Bosses 205 are produced from the flat tubes 201 out of the flat tube wall 202 outward, in particular by means of a forming manufacturing method, such as, for example, embossing, stamping, pressing, etc.
  • Adjacent flat tubes 201 are supported with respect to one another by means of the bosses 205 .
  • At least one boss 205 of a flat tube 201 touches at least in portions the flat tube wall 202 of an adjacently arranged flat tube 201 .
  • turbulence-generating elements 204 likewise in the form of bosses or winglets, may be formed out of the flat tube wall 202 in the direction of the tube interior, not designated in any more detail, of a flat tube 201 .
  • the turbulence-generating elements 204 are introduced by means of a forming manufacturing method, such as stamping, embossing, pressing, etc.
  • the turbulence-generating elements 204 may be designed as turbulence inserts. These push-in turbulence inserts are, in particular, embossed or stamped into a sheet metal element by means of a forming manufacturing method.
  • the push-in turbulence inserts 204 can be introduced into at least one flat tube 201 via the flat tube orifice 203 . Via the bosses 205 of the flat tubes 201 , which are arranged adjacently to a housing wall, not illustrated, of a housing of a heat exchanger, the flat tube bundle 200 is supported against the housing wall, not illustrated, of the housing of the heat exchanger.
  • FIG. 10 shows a flat tube bundle 300 as a disk stack 302 .
  • the flat tube bundle 300 has a number of flat tubes 301 .
  • a flat tube 301 has, in particular, an upper disk 303 and a lower disk 304 .
  • the upper disk 303 and the lower disk 304 are connected to one another at least in portions in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc., and/or with a form fit, in particular by folding, crimping, flanging, etc.
  • FIG. 11 shows a further version of a flat tube bundle 400 in the form of a disk stack 401 .
  • the flat tube bundle 400 has a number of flat tubes 402 .
  • a flat tube 402 has in each case an upper disk 403 and a lower disk 404 .
  • the upper disk 403 and the lower disk 404 are at least in portions connected to one another in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc., and/or with a form fit, in particular by crimping, folding, flanging, etc.
  • Adjacent flat tubes 402 are connected to one another at least in portions in a materially integral manner, in particular by welding, soldering, adhesive bonding, etc., and/or with a form fit, in particular by crimping, folding, flanging, etc.
  • Turbulence-generating elements in the form of turbulence inserts 408 are introduced between adjacent flat tubes 402 .
  • a turbulence insert is, in particular, a metal sheet, into which embossings, which lead to the swirling of a flow medium, are introduced by means of a forming manufacturing method.
  • FIG. 12 shows a further exemplary embodiment or a development of a bottom 500 with an expansion element 501 .
  • Identical features are given the same reference symbols in FIG. 12 as in the preceding figures. For the description of these features, reference is made to the corresponding figures. An enlarged illustration of a detail is illustrated in section.
  • the plate 506 has an angularly designed region 503 which adjoins the first embossing 502 essentially directly.
  • a second plate 507 is designed essentially in the same way as the bottom surface orifice lattice 9 and has the features of the bottom orifice lattice 9 described in the preceding figures.
  • the second plate 507 is produced from a material, such as high-grade steel, or from another steel.
  • the second plate 507 is produced from aluminum or from another metal.
  • the second plate is produced from a material, such as a composite fiber material, from a plastic or from a ceramic-containing material.
  • the second plate 507 has a thickness of 0.5 mm to 5 mm, in particular a thickness of between 1 mm and 4 mm, in particular a thickness of between 1.5 mm and 3 mm, in particular a thickness of 2 mm.
  • the first plate 506 and the second plate 507 are connected to one another in a materially integral manner via the angular region 503 of the first plate 506 by means of a margin 508 of the second plate 507 , such as, for example, by means of at least one weld seam 504 by means of welding, in particular laser welding, or by soldering by means of a soldering seam or by adhesive bonding by means of an adhesive seam, etc.
  • the first plate 506 and the second plate 507 may also be connected to one another with a form fit by folding, flanging, crimping, etc. solely or in addition to the materially integral connection.
  • the first plate 506 and the second plate 507 are connected or pre-assembled nonpositively, so that the first plate 506 is braced with the second plate 507 via the angularly designed region 503 .
  • the tubes 79 , 201 are then connected to the second plate 507 of the bottom 500 in a materially integral manner, for example by welding, such as laser welding, and the second plate 507 is subsequently or previously or simultaneously connected to the first plate 506 .
  • welding such as laser welding
  • the first plate 506 and the second plate 507 are produced in one piece.
  • the first plate 506 is stamped out or sawn out or pressed out or is produced by means of a severing manufacturing method, such as sawing, cutting, such as, for example, laser beam cutting or water jet cutting.
  • a severing manufacturing method such as sawing, cutting, such as, for example, laser beam cutting or water jet cutting.
  • the contour of the first plate may also be produced in the same way.
  • the first embossing 502 and/or the at least second embossing 505 and/or the angularly designed region are produced by means of a forming manufacturing method, such as pressing, stamping, etc.
  • one to three frame elements 2 , 44 , 47 , 50 , 122 , 123 or more than three frame elements 2 , 44 , 47 , 50 , 122 , 123 are used.
  • the housing flange portion 36 , 56 , 66 , 78 , 114 , 115 has at least one groove, into which the expansion element is formed as a sealing element, such as, for example, as an O-ring, etc. and can be introduced or is introduced into the groove.
  • a sealing element such as, for example, as an O-ring, etc.
  • the expansion element 24 , 30 , 40 , 43 , 60 , 65 , 70 , 74 , 77 , 80 , 81 is produced from plastic, such as, for example, from an elastomer or from rubber, or from metal, such as, for example, from high-grade steel or aluminum, or from a composite fiber material which, for example, has metal and plastic.
  • the bottom of the heat exchanger has the same bottom thickness d everywhere.
  • d bottom thickness d everywhere.
  • This assumes essentially values of 0.5 mm ⁇ d ⁇ 7.0 mm, in particular values of between 0.5 mm ⁇ d ⁇ 4 mm, in particular values of between 0.5 mm and 3.0 mm, in particular values of between 0.5 mm ⁇ d ⁇ 2.5 mm, in particular values of between 1 mm ⁇ d ⁇ 2.5 mm, in particular values of between 1.5 mm ⁇ d ⁇ 2.0 mm, in particular values of between 1.6 mm ⁇ d ⁇ 1.9 mm, in particular values of between 1.65 mm ⁇ d ⁇ 1.85 mm.
  • the bottom of the heat exchanger has a different bottom thickness d in the different regions.
  • the bottom thickness d assumes essentially values of 0.5 mm ⁇ d ⁇ 7.0 mm, in particular values of between 0.5 mm ⁇ d ⁇ 4 mm, in particular values of between 0.5 mm and 3.0 mm, in particular values of between 0.5 mm ⁇ d ⁇ 2.5 mm, in particular values of between 1 mm ⁇ d ⁇ 2.5 mm, in particular values of between 1.5 mm ⁇ d ⁇ 2.0 mm, in particular values of between 1.6 mm ⁇ d ⁇ 1.9 mm, in particular values of between 1.65 mm ⁇ d ⁇ 1.85 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
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CN101375048B (zh) 2011-06-15
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RU2411390C2 (ru) 2011-02-10
EP1979602B1 (de) 2017-03-15
JP2009523994A (ja) 2009-06-25
US10240876B2 (en) 2019-03-26
RU2008134494A (ru) 2010-02-27
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CN101375048A (zh) 2009-02-25
US20150204623A1 (en) 2015-07-23

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