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US20040182547A1 - Waste gas heat exchanger - Google Patents

Waste gas heat exchanger Download PDF

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Publication number
US20040182547A1
US20040182547A1 US10/476,877 US47687703A US2004182547A1 US 20040182547 A1 US20040182547 A1 US 20040182547A1 US 47687703 A US47687703 A US 47687703A US 2004182547 A1 US2004182547 A1 US 2004182547A1
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US
United States
Prior art keywords
housing jacket
heat exchanger
bead
tubes
exhaust gas
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
US10/476,877
Other languages
English (en)
Inventor
Arndt Birkert
Hans Glockl
Knut Haarscheidt
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. reassignment BEHR GMBH & CO. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAARSCHEIDT, KNUT, BIRKERT, ARNDT, GLOCKL, HANS
Publication of US20040182547A1 publication Critical patent/US20040182547A1/en
Priority to US11/357,414 priority Critical patent/US7543471B2/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/02—Forming single grooves in sheet metal or tubular or hollow articles by pressing
    • B21D17/025—Forming single grooves in sheet metal or tubular or hollow articles by pressing by pressing tubes axially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/047—Mould construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1883—Construction facilitating manufacture, assembly, or disassembly manufactured by hydroforming
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/0205—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
    • F01N2470/10—Tubes having non-circular cross section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F01N2530/02—Corrosion resistive metals
    • F01N2530/04—Steel alloys, e.g. stainless steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • 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
    • F02M26/50—Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities
    • 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
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/10—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes made by hydroforming
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/906—Reinforcement
    • 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

Definitions

  • the invention is concerned with a heat exchanger, in particular an exhaust gas heat exchanger for motor vehicles, in accordance with the precharacterizing clause of patent claim 1 , as disclosed by DE-A 199 07 163 of the co-applicant.
  • the invention is furthermore concerned with a method for producing a housing jacket of an exhaust gas heat exchanger in accordance with the precharacterizing clause of patent claim 12 .
  • a bank of tubes has the exhaust gas of an internal combustion engine of a motor vehicle flowing through it and is cooled on the outside by a coolant which is taken from the coolant circuit of the internal combustion engine.
  • Exhaust gas heat exchangers of this type which are also called exhaust gas coolers, are used nowadays in the exhaust gas recirculation system (EGR) to cool the exhaust gas.
  • EGR exhaust gas recirculation system
  • the tube ends of the bank of tubes are welded in each case into a tube plate, i.e. are connected fixedly and tightly to these tube plates.
  • the tube plates themselves are welded in turn to a housing jacket which surrounds the bank of tubes.
  • the housing jacket has a coolant inlet opening and a coolant outlet opening and has the coolant flowing through it.
  • the exhaust gas tubes have the hot exhaust gas flowing through them on the inside and have coolant washing around them on the outside. This coolant also washes around the inside of the housing jacket.
  • the exhaust gas tubes therefore reach a substantially higher temperature than the housing jacket, which results in different expansions between the exhaust gas tubes and housing jacket: this leads to thermal stresses, i.e. to compressive stresses in the tubes and tensile stresses in the housing jacket.
  • the tubes press on the tube plates and cause deformation or even damage to the tube/plate connections or the tube plate/housing connections, i.e. the exhaust gas cooler can become leaky.
  • the housing jacket is provided with at least one encircling expansion bead.
  • This bead provides the housing jacket with sufficient elasticity in the longitudinal direction of the tubes, thus making it possible for the housing jacket to expand elastically so as to follow the more pronounced expansion of the exhaust gas tubes without in the process being deformed to an impermissible extent or impairing the weld seam connections between the tubes and plate and plate and housing.
  • the expansion bead can be produced in a simple manner, i.e. without substantially greater costs, and does not involve any sort of sealing problems. It is also possible—to increase the elasticity or to enlarge the spring deflection—to provide a plurality of extension bead in the manner of an expansion bellows.
  • the housing jacket is produced integrally, for example from a welded tube, it also being possible for said tube to have a noncircular cross section, for example a rectangular cross section.
  • the expansion bead is produced by “internal high pressure forming” (IHF) of the housing jacket.
  • IHF which is also called hydroforming, is a process which is known per se and in which closed housing parts are “inflated” by means of a liquid pressure medium (water).
  • the housings which are to be deformed are placed into dies having the appropriate contour and are then acted upon from the inside by means of a pressure fluid in such a manner that the material of the housing is placed against the contour of the mold.
  • the expansion bead can additionally be produced by axial compression, i.e. after a bead in preliminary form has been produced in a first step by IHF.
  • dimensions for the housing jacket, in particular the wall thickness thereof, and the dimension of the expansion bead are specified, said dimensions being particularly advantageous and resulting in the desired elasticity of the housing jacket under the loads which occur.
  • the material of the housing jacket does not over-expand during production of the expansion bead, but that the designated strength is achieved.
  • one advantageous refinement of the invention provides a method which enables simple and cost-effective production of the expansion bead in the housing jacket of the exhaust gas heat exchanger.
  • the expansion bead is produced in two stages, namely first of all by means of internal high pressure forming to give a bead which is in a preliminary form and is not yet in the final form, in particular does not yet have the final height (external dimensions).
  • the housing jacket is compressed axially, thus causing the material of the bead in preliminary form to flow further outward, and the expansion bead then obtains its final form.
  • This two-stage method avoids overloading the material and, at the same time, achieves a defined contour of the expansion bead with a certain elasticity.
  • This method can be used particularly easily for the housing jacket and does not cause any change in the construction of the exhaust gas heat exchanger.
  • FIG. 1 shows a perspective illustration of part of the exhaust gas heat exchanger
  • FIG. 2 shows a longitudinal section through the exhaust gas heat exchanger
  • FIG. 3 shows a cross section through the housing jacket of the exhaust gas heat exchanger
  • FIG. 4 shows an illustration of a detail of the expansion bead of the housing jacket
  • FIG. 5 shows a first method step for producing the expansion bead
  • FIG. 6 shows a second method step for producing the expansion bead.
  • FIG. 1 shows, in a perspective illustration, part of an exhaust gas heat exchanger 1 as used in the form of an exhaust gas cooler for the exhaust gas recirculation system in diesel engines for motor vehicles.
  • the exhaust gas heat exchanger 1 only the front half of which is illustrated, has a housing jacket 2 and a tube plate 3 in which exhaust gas tubes (not illustrated) are accommodated.
  • An encircling expansion bead 4 is arranged in the front region of the housing jacket 2 , which has approximately a rectangular cross section with beveled corners.
  • This exhaust gas heat exchanger 1 is described in greater detail below, the same reference numbers being used for the same parts.
  • FIG. 2 shows the exhaust gas heat exchanger 1 in longitudinal section in a schematic illustration.
  • the housing jacket 2 is produced from a closed, i.e. welded tube of stainless steel.
  • a bank of tubes comprising a multiplicity of exhaust gas tubes 5 is arranged within this housing jacket 2 .
  • These exhaust gas tubes 5 are likewise produced from a stainless steel alloy which is, in particular, heat-resistant and corrosion-resistant.
  • the cross section of the exhaust gas tubes 5 is preferably rectangular—as is apparent on the basis of the design of the tube plate 3 in FIG. 1.
  • the exhaust gas tubes 5 are arranged with respect to one another in such a manner that they leave between them equidistant gaps 6 through which a liquid coolant, i.e.
  • the coolant of the cooling circuit of an internal combustion engine flows.
  • the ends 5 a , 5 b of the exhaust gas tubes 5 are held in the tube plate 3 and in a further tube plate 7 and are welded tightly to these tube plates 3 , 7 .
  • the tube plates 3 , 7 are, for their part, welded in their circumferential regions 3 a , 7 a to the housing jacket 2 to the housing jacket 2 .
  • the housing jacket 2 , the tube plates 3 , 7 and the exhaust gas tubes 5 therefore delimit a defined space for the flow of the coolant.
  • the housing jacket 2 In its end-side regions 2 a and 2 b , the housing jacket 2 is somewhat expanded in terms of its cross section, so that it forms a respective annular channel 8 and 9 around the bank of tubes at this point.
  • the coolant enters through a coolant inlet (not illustrated), flows through the equidistant gap 6 between the exhaust gas tubes 5 , and passes to the second annular space 9 , from where the coolant leaves the exhaust gas heat exchanger through a coolant outlet (not illustrated).
  • this exhaust gas heat exchanger is known, for example through the co-applicant's document which is mentioned at the beginning.
  • the inflow and outflow of the exhaust gas via a diffuser (not illustrated here) or an outlet stub is also revealed in this document.
  • an expansion bead 4 is arranged in the housing jacket 2 .
  • This expansion bead 4 which can also be seen in FIG. 1 as the bead which encircles the entire circumference, gives the housing jacket 2 , which is not very elastic in itself, an elasticity in the longitudinal direction of the exhaust gas tubes 5 , said elasticity permitting the housing jacket 2 to follow the more pronounced expansion of the exhaust gas tubes 5 .
  • the exhaust gas tubes 5 which have hot exhaust gas flowing through them on their inside, absorb a higher temperature during operation than the housing jacket 2 , around which the coolant washes, and therefore “grow” to a greater extent than the housing jacket.
  • FIG. 3 shows a cross section through the housing jacket 2 , i.e. without the bank of tubes being illustrated.
  • the housing jacket 2 has an approximately rectangular cross section with in each case two parallel longer side surfaces 10 and 11 and two somewhat shorter side surfaces 12 and 13 lying opposite each other.
  • Longitudinal beads 14 , 15 , 16 , 17 for stiffening the entire cross section are formed in the transition regions of adjacent short and long side surfaces 12 / 10 , 10 / 13 , 13 / 11 and 11 / 12 .
  • One of these beads can also be seen clearly in FIG. 1—denoted by 14 there.
  • the expansion bead 4 is situated somewhat offset to the rear of the plane of projection and surrounds the entire cross section of the housing jacket 2 , i.e. it is of encircling design.
  • the wall thickness of the housing is denoted by s and is s ⁇ 1.5 mm.
  • the bead 4 has a width of b ⁇ 6 mm and a height of h ⁇ 6 mm.
  • the bead is furthermore characterized by two transition radii R1 and R2 which correspond approximately to the wall thickness s, i.e. lie in the region of 1.5 mm.
  • the outermost section of the bead is characterized by an inner radius of R3 ⁇ 1.5 mm, i.e. approximately of the wall thickness S.
  • FIG. 5 shows a first method step for producing the expansion bead 4 in the housing jacket 2 .
  • the housing jacket 2 is illustrated here only by a sector 20 .
  • the housing jacket 2 is placed into two mold halves 21 and 22 , between which a cavity 23 is provided which is preferably closed to the outside by an insertable tool 23 ′.
  • the housing jacket 20 is acted upon from the inside, illustrated by an arrow p, by hydroforming or by IHF, so that the housing jacket 20 is deformed in the region of the cavity 23 to the outside to height h1 and takes on a bead-shaped preliminary form 24 .
  • This bead 24 in preliminary form has a width b1 corresponding to the cavity 23 between the two mold halves 21 and 22 .
  • FIG. 6 shows the second method step for producing the expansion bead 4 —in this case the housing jacket 20 is arranged between two axially movable molds 25 and 26 .
  • the housing jacket 20 is compressed by means of the molds 25 and 26 in the axial direction, i.e. corresponding to the arrows F, so that the width of the bead is reduced from b1 (FIG. 5) to b and the height h1 (FIG. 5) is increased to h.
  • the bead has obtained its final form in respect of height and width, i.e. it is finished in two consecutive different method steps.
  • the two method steps can be carried out in one mold, in which case the insertable tool 23 ′, if the operation is carried out using an insertable tool of this type, has to be removed for the second method step.

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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)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)
US10/476,877 2002-02-01 2003-01-21 Waste gas heat exchanger Abandoned US20040182547A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/357,414 US7543471B2 (en) 2002-02-01 2006-02-21 Waste gas heat exchanger

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10204107.5A DE10204107B4 (de) 2002-02-01 2002-02-01 Abgaswärmeübertrager
DE10204107.5 2002-02-01
PCT/EP2003/000544 WO2003064953A1 (fr) 2002-02-01 2003-01-21 Dispositif de transfert de chaleur de gaz brules

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/000544 A-371-Of-International WO2003064953A1 (fr) 2002-02-01 2003-01-21 Dispositif de transfert de chaleur de gaz brules

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/357,414 Continuation US7543471B2 (en) 2002-02-01 2006-02-21 Waste gas heat exchanger

Publications (1)

Publication Number Publication Date
US20040182547A1 true US20040182547A1 (en) 2004-09-23

Family

ID=27634759

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/476,877 Abandoned US20040182547A1 (en) 2002-02-01 2003-01-21 Waste gas heat exchanger
US11/357,414 Expired - Lifetime US7543471B2 (en) 2002-02-01 2006-02-21 Waste gas heat exchanger

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/357,414 Expired - Lifetime US7543471B2 (en) 2002-02-01 2006-02-21 Waste gas heat exchanger

Country Status (7)

Country Link
US (2) US20040182547A1 (fr)
EP (1) EP1474645B1 (fr)
JP (1) JP4173817B2 (fr)
AT (1) ATE331199T1 (fr)
DE (2) DE10204107B4 (fr)
ES (1) ES2266804T3 (fr)
WO (1) WO2003064953A1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030079869A1 (en) * 2001-10-26 2003-05-01 Behr Gmbh & Co. Tube plate for exhaust heat exchanger
US20050167091A1 (en) * 2004-01-12 2005-08-04 Behr Gmbh & Co. Kg Heat exchanger, in particular exhaust gas heat exchanger for motor vehicles, and method for producing same
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EP3163243A1 (fr) * 2015-10-28 2017-05-03 Borgwarner Emissions Systems Spain, S.L.U. Évaporateur
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EP3741985A1 (fr) * 2019-05-23 2020-11-25 Valeo Termico S.A. Refroidisseur de recirculation de gaz d'échappement (egr)

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Cited By (33)

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US20030079869A1 (en) * 2001-10-26 2003-05-01 Behr Gmbh & Co. Tube plate for exhaust heat exchanger
US7367387B2 (en) * 2001-10-26 2008-05-06 Behr Gmbh & Co. Tube plate for exhaust heat exchanger
US20050263272A1 (en) * 2002-06-25 2005-12-01 Behr Gmbh & Co. Exhaust gas heat exchanger and method for the production thereof
US7278473B2 (en) * 2002-06-25 2007-10-09 Behr Gmbh & Co. Exhaust gas heat exchanger and method for the production thereof
US7267160B2 (en) * 2002-07-25 2007-09-11 T.Rad Co., Ltd. Heat exchanger
US20060102321A1 (en) * 2002-07-25 2006-05-18 Shuko Shincho Heat exchanger
US7896065B2 (en) 2003-10-02 2011-03-01 Behr Gmbh & Co. Kg Charge-air cooler for motor vehicles
US20070029076A1 (en) * 2003-10-17 2007-02-08 Behr Gmbh & Co. Kg Heat exchanger, in particular for motor vehicles
US7048042B2 (en) 2004-01-12 2006-05-23 Behr Gmgh & Co. Kg Heat exchanger, in particular exhaust gas heat exchanger for motor vehicles, and method for producing same
US20050167091A1 (en) * 2004-01-12 2005-08-04 Behr Gmbh & Co. Kg Heat exchanger, in particular exhaust gas heat exchanger for motor vehicles, and method for producing same
US20070199680A1 (en) * 2004-01-22 2007-08-30 Behr Gmbh & Co. Kg Frame Part For A Shell-And-Tube Heat Exchanger
US20080223024A1 (en) * 2005-08-27 2008-09-18 Behr Gmbh & Co. Kg Exhaust Gas Heat Exchanger
US7721792B2 (en) * 2005-08-27 2010-05-25 Behr Gmbh & Co. Kg Exhaust gas heat exchanger
US20070187071A1 (en) * 2006-02-10 2007-08-16 Denso Corporation Heat recovery apparatus
US20080053646A1 (en) * 2006-09-05 2008-03-06 Simon Martin Thermal expansion feature for an exhaust gas cooler
EP1978323A2 (fr) 2007-04-05 2008-10-08 Honeywell International Inc. Échangeur de chaleur doté d'un joint de dilatation télescopique
EP1978323A3 (fr) * 2007-04-05 2013-07-31 Honeywell International Inc. Échangeur de chaleur doté d'un joint de dilatation télescopique
US9067289B2 (en) 2007-04-05 2015-06-30 Honeywell International Inc. Heat exchanger with telescoping expansion joint
US9243849B2 (en) 2009-03-12 2016-01-26 Mahle International Gmbh Stacked plate heat exchanger with end plate expansion slots
EP2236969A3 (fr) * 2009-03-13 2014-04-02 Behr GmbH & Co. KG Echangeur de chaleur à plaque, résistant aux contraintes alternées de cyclage thermique
US20100258095A1 (en) * 2009-03-13 2010-10-14 Christian Saumweber Heat exchanger
US20130340980A1 (en) * 2010-12-10 2013-12-26 Perkins Engines Company Limited Improvements in or relating to gas coolers for internal combustion engines
WO2016010266A1 (fr) * 2014-07-18 2016-01-21 한온시스템 주식회사 Dispositif de stockage de chaleur d'échappement d'automobile
US10309364B2 (en) 2014-07-18 2019-06-04 Hanon Systems Exhaust heat regenerator for vehicle
US20170307262A1 (en) * 2014-10-08 2017-10-26 Mahle International Gmbh Method for mounting a heat exchanger device and a heat exchanger device
CN106969546A (zh) * 2015-10-28 2017-07-21 博格华纳排放系统西班牙有限责任公司 蒸发器
US20170122677A1 (en) * 2015-10-28 2017-05-04 Borgwarner Emissions Systems Spain, S.L.U. Evaporator
EP3163243A1 (fr) * 2015-10-28 2017-05-03 Borgwarner Emissions Systems Spain, S.L.U. Évaporateur
CN109538382A (zh) * 2017-09-22 2019-03-29 翰昂汽车零部件有限公司 废气冷却器和具有废气冷却器的废气回导系统
KR20190034075A (ko) * 2017-09-22 2019-04-01 한온시스템 주식회사 배기가스 냉각기 및 배기가스 냉각기를 구비한 배기가스 재순환 시스템
KR102010474B1 (ko) * 2017-09-22 2019-08-13 한온시스템 주식회사 배기가스 냉각기 및 배기가스 냉각기를 구비한 배기가스 재순환 시스템
US10697405B2 (en) * 2017-09-22 2020-06-30 Hanon Systems Exhaust gas cooler and exhaust gas recirculation system with an exhaust gas cooler
EP3741985A1 (fr) * 2019-05-23 2020-11-25 Valeo Termico S.A. Refroidisseur de recirculation de gaz d'échappement (egr)

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JP2005516177A (ja) 2005-06-02
DE10204107A1 (de) 2003-09-04
JP4173817B2 (ja) 2008-10-29
WO2003064953A1 (fr) 2003-08-07
US20060201653A1 (en) 2006-09-14
DE50303945D1 (de) 2006-08-03
ATE331199T1 (de) 2006-07-15
EP1474645A1 (fr) 2004-11-10
US7543471B2 (en) 2009-06-09
EP1474645B1 (fr) 2006-06-21
DE10204107B4 (de) 2018-12-13

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