EP1795732B1 - Gaswärmetauscher, insbesondere Abgaswärmetauscher - Google Patents

Gaswärmetauscher, insbesondere Abgaswärmetauscher Download PDF

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Publication number
EP1795732B1
EP1795732B1 EP06025329A EP06025329A EP1795732B1 EP 1795732 B1 EP1795732 B1 EP 1795732B1 EP 06025329 A EP06025329 A EP 06025329A EP 06025329 A EP06025329 A EP 06025329A EP 1795732 B1 EP1795732 B1 EP 1795732B1
Authority
EP
European Patent Office
Prior art keywords
exchanger
housing
protrusions
protuberances
support plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP06025329A
Other languages
English (en)
French (fr)
Other versions
EP1795732A1 (de
Inventor
Benjamin Gracia
Javier Gracia
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.)
Valeo Termico SA
Original Assignee
Valeo Termico SA
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 Valeo Termico SA filed Critical Valeo Termico SA
Publication of EP1795732A1 publication Critical patent/EP1795732A1/de
Application granted granted Critical
Publication of EP1795732B1 publication Critical patent/EP1795732B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
    • 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
    • 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
    • F28F2275/00—Fastening; Joining
    • F28F2275/08—Fastening; Joining by clamping or clipping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04—Means for preventing wrong assembling of parts

Definitions

  • the present invention relates to a heat exchanger for gas, in particular the exhaust gas of an engine, of the type comprising a plurality of parallel ducts arranged inside a housing, by means of which the gases to be cooled by exchange thermal circuit with a cooling fluid circulate, said conduits being coupled between two support plates fixed at both ends of said housing, and the housing and the support plates having a substantially rectangular section.
  • the invention is particularly applicable to heat exchangers whose housing, support plates and parallel ducts have a substantially rectangular cross section.
  • it applies to small heat exchangers such as engine exhaust gas recirculation (EGRC) exchangers.
  • EGRC engine exhaust gas recirculation
  • the gases circulate in a set of tubes or parallel conduits arranged inside a housing and they are cooled by heat exchange with a cooling fluid which circulates outside the gas passage ducts.
  • the tubes are fixed at their ends between two support plates coupled to each end of the housing.
  • the two support plates have a plurality of orifices for accommodating the respective tubes.
  • the gases are supplied by means of a bundle of tubes of the exchanger from an intake duct; insofar as the diameter of the intake duct is less than the diameter of the housing and the tube bundle of the exchanger, there exists between them an intake tank which is evacuated progressively.
  • Heat exchangers are known whose housing and support plates have a substantially rectangular cross section.
  • the assembly of the exchanger consists first of all to assemble beforehand the assembly formed by the housing, the plurality of tubes and the support plates. Thereafter, it continues with the application on said assembly of a solder paste, the assembly of gas tanks and the oven welding of the complete heat exchanger.
  • the support plates may have a flange for engaging the contour of the housing, or the support plates are engaged by the housing. It is also possible to use baking or laser welding to join the two components together.
  • protuberances allow the operator to quickly identify the face to be located against the housing, insofar as said face is the one that includes the protuberances.
  • said protuberances also have the function of preventing the relative movement of the support plates relative to the housing during the assembly before the welding in the oven. It is possible to achieve this effect through frictional contact of the protuberances with the peripheral zone of the housing, insofar as these protuberances must be made in an area near the periphery of the support plates.
  • the object of the present invention is to solve the disadvantages mentioned above, by developing a heat exchanger which immobilizes the support plates during assembly and welding of the exchanger.
  • the gas heat exchanger in particular the exhaust gas of an engine, object of the present invention, is of the type comprising a plurality of parallel ducts arranged inside a housing, by means of which the gases in front of being cooled by heat exchange with a cooling fluid circulate, said ducts being coupled between two support plates fixed at both ends of said housing, and the housing and the support plates having a substantially rectangular section;
  • the heat exchanger is characterized in that each support plate comprises protuberances arranged near its peripheral zone, said protuberances comprising reliefs likely to come into contact with a peripheral surface of the housing.
  • the protuberances are arranged symmetrically on each support plate. In this way, it is possible to prevent the rotation of said support plates.
  • each support plate comprises at least four protuberances.
  • each support plate comprises six protuberances, four protuberances being disposed at each corner of the support plate and the two remaining protuberances being disposed in the middle zone of two opposite sides.
  • the reliefs of the protuberances are oriented towards the inside of the exchanger to assemble the support plates with the housing.
  • the height of the reliefs is 0.5 mm with a tolerance of +0.1 / -0.2 mm; the diameter of the protuberances is 2 mm with a tolerance of +0 / -0.2 mm; and the distance of the protuberances from the edge of the support plate is approximately 1.05 mm with a tolerance of +0.1 / -0 mm.
  • the heat exchanger 1 consists of a housing 2 which contains a bundle of parallel tubes 3 for the passage of gases to be cooled. Inside the housing 2, outside the tubes 3, a cooling fluid flows from an inlet 4 to an outlet (not shown).
  • the gases to be cooled enter the exchanger 1 from a supply duct 5 and through an intake tank 6, which is discharged progressively.
  • the bundle of tubes 3 is fixed at its ends between two support plates 7 coupled to each end of the housing 2, the figure 1 representing that which is located at the admission level.
  • Each support plate 7 has a plurality of orifices 8 for accommodating the respective tubes 3 (see FIG. figure 2 ).
  • each support plate 7 comprises a set of protuberances 9 disposed near its peripheral zone.
  • said protuberances 9 comprise reliefs 10 directed towards the inside of the housing 2, capable of coming into contact with a peripheral surface 11 of the housing 2 (refer to FIG. figure 1 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Chimneys And Flues (AREA)

Claims (8)

  1. Gas-Wärmeaustauscher (1), insbesondere für die Abgase eines Motors, der mehrere innerhalb eines Gehäuses (2) angeordnete, parallele Kanäle (3) enthält, durch die die Gase fließen, die durch Wärmeaustausch mit einem Kühlmittel gekühlt werden sollen, wobei die Kanäle (3) zwischen zwei Halteplatten (7) gekoppelt sind, die in Höhe der zwei Enden des Gehäuses (2) befestigt sind, und das Gehäuse (2) sowie die Halteplatten (7) einen im Wesentlichen rechteckigen Querschnitt aufweisen, dadurch gekennzeichnet, dass jede Halteplatte (7) Vorsprünge (9) aufweist, die in der Nähe ihres Umfangsbereichs angeordnet sind, wobei die Vorsprünge (9) Reliefs (10) enthalten, die mit einer Umfangsfläche (11) des Gehäuses (2) in Kontakt kommen können.
  2. Austauscher (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Vorsprünge (9) symmetrisch auf jeder Halteplatte (7) angeordnet sind.
  3. Austauscher (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass jede Halteplatte (7) mindestens vier Vorsprünge (9) enthält.
  4. Austauscher (1) nach Anspruch 3, dadurch gekennzeichnet, dass jede Halteplatte (7) sechs Vorsprünge (9) enthält, wobei vier Vorsprünge (9) in Höhe jeder Ecke der Halteplatte (7) und die zwei verbleibenden Vorsprünge (9) im mittleren Bereich von zwei entgegengesetzten seitlichen angeordnet sind.
  5. Austauscher (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Reliefs (10) der Vorsprünge (9) zur Innenseite des Austauschers (1) ausgerichtet sind, um die Halteplatten (7) mit dem Gehäuse (2) zusammenzubauen.
  6. Austauscher (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Höhe der Reliefs (10) 0,5 mm mit einer Toleranz von +0,1/-0,2 mm beträgt.
  7. Austauscher (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Durchmesser der Vorsprünge (9) 2 mm mit einer Toleranz von +0 / -0,2 mm beträgt.
  8. Austauscher (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Abstand der Vorsprünge (9) bezüglich des Rands der Halteplatte (7) etwa 1,05 mm mit einer Toleranz von +0,1 / -0 mm beträgt.
EP06025329A 2005-12-09 2006-12-07 Gaswärmetauscher, insbesondere Abgaswärmetauscher Active EP1795732B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200503024A ES2315067B1 (es) 2005-12-09 2005-12-09 Intercambiador de calor para gases, en especial de los gases de escape de un motor.

Publications (2)

Publication Number Publication Date
EP1795732A1 EP1795732A1 (de) 2007-06-13
EP1795732B1 true EP1795732B1 (de) 2010-09-29

Family

ID=37913563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06025329A Active EP1795732B1 (de) 2005-12-09 2006-12-07 Gaswärmetauscher, insbesondere Abgaswärmetauscher

Country Status (5)

Country Link
US (1) US20070131400A1 (de)
EP (1) EP1795732B1 (de)
AT (1) ATE483104T1 (de)
DE (1) DE602006017158D1 (de)
ES (2) ES2315067B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9403204B2 (en) * 2010-01-29 2016-08-02 Modine Manufacturing Company Heat exchanger assembly and method
US8978740B2 (en) * 2006-06-22 2015-03-17 Modine Manufacturing Company Heat exchanger
DE102009020306A1 (de) * 2008-05-12 2010-02-11 Modine Manufacturing Co., Racine Wärmetauscher und Verfahren zum Zusammenbau
DE102012012939A1 (de) * 2012-06-29 2014-04-24 Mann + Hummel Gmbh Wärmetauscher zur Kühlung eines Fluids einer Brennkraftmaschine, Anordnung mit wenigstens einem Wärmetauscher und Verfahren zur Herstellung eines Wärmetauschers
DE102015219627A1 (de) * 2015-10-09 2017-04-13 Röchling Automotive SE & Co. KG Frischgaszufuhrkanal
ES2724915A1 (es) * 2018-03-16 2019-09-17 Valeo Termico Sa Intercambiador de calor para gases y procedimiento de montaje de un intercambiador de calor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2050325B1 (de) * 1969-07-23 1973-12-21 Chausson Usines Sa
DE3110489C2 (de) * 1981-03-18 1984-07-19 Kühlerfabrik Längerer & Reich GmbH & Co KG, 7024 Filderstadt Wärmeaustauscher
US5048596A (en) * 1990-01-02 1991-09-17 Mccord Heat Transfer Corporation Oil cooler
JP3781386B2 (ja) * 1996-05-22 2006-05-31 臼井国際産業株式会社 Ｅｇｒガス冷却装置
JP4622150B2 (ja) * 2001-04-26 2011-02-02 株式会社デンソー 熱交換器
DE10359806A1 (de) * 2003-12-19 2005-07-14 Modine Manufacturing Co., Racine Wärmeübertrager mit flachen Rohren und flaches Wärmeübertragerrohr

Also Published As

Publication number Publication date
ATE483104T1 (de) 2010-10-15
ES2315067A1 (es) 2009-03-16
EP1795732A1 (de) 2007-06-13
ES2355484T3 (es) 2011-03-28
ES2315067B1 (es) 2009-11-10
US20070131400A1 (en) 2007-06-14
DE602006017158D1 (de) 2010-11-11

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