EP2817503B1 - Wärmetauscher für gase, im besonderen für motorabgase - Google Patents

Wärmetauscher für gase, im besonderen für motorabgase Download PDF

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Publication number
EP2817503B1
EP2817503B1 EP13708372.1A EP13708372A EP2817503B1 EP 2817503 B1 EP2817503 B1 EP 2817503B1 EP 13708372 A EP13708372 A EP 13708372A EP 2817503 B1 EP2817503 B1 EP 2817503B1
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EP
European Patent Office
Prior art keywords
filter
exchanger
gas tank
gas
gases
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
EP13708372.1A
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English (en)
French (fr)
Other versions
EP2817503B9 (de
EP2817503B2 (de
EP2817503A1 (de
Inventor
Javier CUESTA
Francisco Lopez Lazaro
Benjamin Gracia
Jesus Jimenez Palacios
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
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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.)
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Publication date
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Application filed by Valeo Termico SA filed Critical Valeo Termico SA
Publication of EP2817503A1 publication Critical patent/EP2817503A1/de
Publication of EP2817503B1 publication Critical patent/EP2817503B1/de
Publication of EP2817503B9 publication Critical patent/EP2817503B9/de
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Publication of EP2817503B2 publication Critical patent/EP2817503B2/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
    • 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
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
    • 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
    • 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

Definitions

  • the present invention relates to a heat exchanger for gas, in particular for the exhaust gases of an engine.
  • the invention is particularly applicable in heat exchangers of engine exhaust gas recirculation (EGRC).
  • EGRC engine exhaust gas recirculation
  • the main function of the EGR exchangers is the exchange of heat between the exhaust gas and the coolant, in order to cool the gases.
  • EGR heat exchangers are widely used for diesel applications to reduce emissions and are also used in gasoline applications to reduce fuel consumption.
  • EGR exchangers on the market is a metal heat exchanger typically made of stainless steel or aluminum.
  • EGR heat exchanger there are two types: a first type consists of a housing inside which there is a bundle of parallel tubes for the passage of gases, the refrigerant circulating in the housing, outside tubes, and the second type consists of a series of parallel plates which constitute the heat exchange surfaces, so that the exhaust gases and the refrigerant circulate between two plates, in alternating layers, with the possibility of include fins to improve heat exchange.
  • the assembly between the tubes and the housing can be of different types.
  • the tubes are fixed at their ends between two support plates connected to each end of the housing, the two support plates having a plurality of orifices for the installation of the respective tubes.
  • connection means with the recirculation line which may consist of a V-shaped connection or of a peripheral collar or flange, depending on the design of the recirculation line in the recirculation line. which is connected the exchanger.
  • the peripheral collar can be assembled with a gas tank, so that the gas tank is an intermediate piece between the housing and the collar, or the collar can be assembled directly to the housing.
  • EGR exchangers In both types of EGR exchangers, most of their components are metallic, so that they are assembled by mechanical means and then oven-welded or arc-welded or laser-welded to ensure the proper sealing required this application.
  • Some EGR exchangers also include a filter in the exhaust line, which is usually an independent component, although it can be partially integrated into the EGR exchanger.
  • the patent EP2273095 relates to a heat exchanger comprising a liquid filter integrated in said exchanger, which comprises a filter zone protruding from a flat surface.
  • This filter is configured as a gasket and is mounted between the connection flange and the gas tank by means of hardware.
  • the patent EP2194351 relates to a heat exchanger comprising a particulate filter for filtering exhaust gas, structurally integrated inside the gas inlet tube of the heat exchanger.
  • the patent FR2938051 relates to a heat exchanger which comprises a filter housed in a selected position so that the filter is disposed near an extreme side of the tubular bundle.
  • the purpose of the gas heat exchanger, in particular the exhaust gases of an engine, according to the present invention is to solve the disadvantages that exchangers known in the art present by offering a more economical particulate filter. and easy to assemble in 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 bundle of tubes arranged inside a housing, intended for the circulation of gases with exchange heat with a heat transfer fluid, at least one gas reservoir that can be adjusted at one end of the housing and connected to the gas recirculation line and a particulate filter for filtering the exhaust gas, associated with said gas tank, said filter being integrated with the gas reservoir and forming a single inseparable piece capable of being fitted to the heat exchanger housing, said filter comprising a concave configuration screen as a plate, and characterized in that said concave configuration presents a concavity opposite to the direction of gas flow.
  • the filter is integrated into the gas reservoir by welding. This provides a simpler attachment of the filter to the gas tank, since it is not necessary for the filter to have a metal collar or intermediate fasteners, nor any hardware elements, to be assembled to the tank. gas, as happened with the known filters.
  • the gas tank can be assembled directly by furnace brazing to the core of the heat exchanger and it is not necessary to use a separate piece assembled by hardware elements as in the prior art.
  • the filter is assembled to the gas tank by spot welding or arc welding.
  • the filter is further assembled to the gas tank by oven brazing.
  • a spot or arc welding is sufficient to ensure correct filter attachment. Nevertheless, it is possible to improve the fixing by additional brazing.
  • said screen comprises the filter comprises a concave configuration screen in a flat peripheral flange provided for assembly in one piece with the gas reservoir.
  • the configuration in the form of a concave screen makes it possible to increase the filtration area and, on the other hand, the flat surface of the peripheral flange makes it easier to attach the filter to the gas tank by welding, without the need for intermediate pieces. nor hardware elements.
  • the gas reservoir comprises a flat peripheral edge in its inner part, intended to receive the peripheral wing of the filter for their assembly to one another. In this way, it ensures a permanent and robust welding between the two parts.
  • the figure 1 is a partial representation of a heat exchanger 1 which comprises a bundle of tubes 2 disposed inside a housing 3, delimiting an inlet 4 and a gas outlet, said tubes 2 being intended for the circulation of gases with exchange of heat with a coolant.
  • the tubes 2 are fixed at their ends between two support plates 5 fitted to each end of the casing 3, the two support plates 5 having a plurality of orifices for the installation of the respective tubes 2.
  • the exchanger 1 comprises a gas reservoir 6 fitted to the housing 3 at the gas inlet end 4 and connected to the gas recirculation line.
  • the exchanger 1 also comprises a particulate filter 7 for filtering the exhaust gas, integrated in the gas tank 6 and forming a single inseparable piece that can be fitted to the housing 3 of the exchanger. In this way, by obtaining a single piece, it facilitates its assembly to the housing 3 of the exchanger 1.
  • the filter 7 is integrated in the gas tank 6 by welding, whether by spot welding or by arc welding. This provides a fixation of the filter 7 to the gas tank 6 simpler, since it is not necessary that the filter 7 has a metal collar or intermediate fixing parts, and more than hardware, to be assembled to the gas tank 6.
  • the filter 7 comprises a screen 8 of concave configuration as a plateau, with a flat peripheral wing 9 provided for its assembly in one piece with the gas tank 6.
  • the configuration in the form of concave screen 8 allows to increasing the filtration area and secondly the flat surface of the peripheral flange 9 facilitates the attachment of the filter 7 to the gas tank 6 by welding, without the need for intermediate parts or hardware.
  • the gas tank 6 comprises in its inner part a flat peripheral edge 10 intended to receive the peripheral flange 9 of the filter 7 in order to assemble them to one another. In this way, it ensures a permanent and robust welding between the two parts.
  • the gas reservoir 6 comprises another collar 11 designed to fit and join with the edge of the housing 3, as can be seen on the figure 3 .

Landscapes

  • 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)
  • Exhaust-Gas Circulating Devices (AREA)

Claims (6)

  1. Wärmeaustauscher (1) für Gase, insbesondere Abgase eines Motors, der ein Bündel von Rohren (2), die im Inneren eines Gehäuses (3) angeordnet und zur Zirkulierung von Gasen unter Wärmeaustausch mit einem Wärmeübertragungsfluid bestimmt sind, mindestens ein Gasreservoir (6), das an ein Ende des Gehäuses (3) angepasst und mit der Gasrezirkulationsleitung verbunden werden kann, und einen dem Gasreservoir (6) zugeordneten Partikelfilter (7) zur Filtrierung der Abgase umfasst, wobei der Filter (7) mit dem Gasreservoir (6) integriert ist und ein untrennbares Einzelteil bildet, das an das Gehäuse (3) des Austauschers (1) angepasst werden kann, wobei der Filter (7) einen Schirm (8) mit konkaver Konfiguration in der Gestalt einer Schale umfasst, dadurch gekennzeichnet, dass die konkave Konfiguration eine Konkavität aufweist, die der Strömungsrichtung der Gase entgegengesetzt ist.
  2. Austauscher (1) nach Anspruch 1, wobei der Filter (7) durch Schweißen mit dem Gasreservoir (6) integriert ist.
  3. Austauscher (1) nach Anspruch 2, wobei der Filter (7) durch Punktschweißen oder Lichtbogenschweißen mit dem Gasreservoir (6) zusammengebaut ist.
  4. Austauscher (1) nach Anspruch 3, wobei ferner der Filter (7) durch Ofenlöten mit dem Gasreservoir (6) zusammengebaut ist.
  5. Austauscher (1) nach einem der Ansprüche 2 bis 4, wobei der Schirm (8) einen flachen Umfangsflügel (9) umfasst, der für seine einteilige Montage mit dem Gasreservoir (6) vorgesehen ist.
  6. Austauscher (1) nach Anspruch 5, wobei das Gasreservoir (6) in seinem inneren Teil einen flachen Umfangsrand (10) umfasst, der zur Aufnahme des Umfangsflügels (9) des Filters (7) zu deren Zusammenbau bestimmt ist.
EP13708372.1A 2012-02-22 2013-02-22 Wärmetauscher für gase, im besonderen für motorabgase Active EP2817503B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201230270A ES2421185B1 (es) 2012-02-22 2012-02-22 Intercambiador de calor para gases, en especial de los gases de escape de un motor
PCT/EP2013/053587 WO2013124431A1 (fr) 2012-02-22 2013-02-22 Echangeur thermique pour gaz, en particulier pour les gaz d'echappement d'un moteur

Publications (4)

Publication Number Publication Date
EP2817503A1 EP2817503A1 (de) 2014-12-31
EP2817503B1 true EP2817503B1 (de) 2016-08-24
EP2817503B9 EP2817503B9 (de) 2016-12-21
EP2817503B2 EP2817503B2 (de) 2022-12-21

Family

ID=47844273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13708372.1A Active EP2817503B2 (de) 2012-02-22 2013-02-22 Wärmetauscher für gase, im besonderen für motorabgase

Country Status (5)

Country Link
US (1) US20150034056A1 (de)
EP (1) EP2817503B2 (de)
KR (1) KR20140120917A (de)
ES (1) ES2421185B1 (de)
WO (1) WO2013124431A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK177774B1 (en) 2013-04-11 2014-06-23 Spx Flow Technology Danmark As HYGIENIC HEAT EXCHANGE AND METHOD FOR PREPARING A HYGIENIC HEAT EXCHANGE
ES2531124B1 (es) * 2013-09-10 2016-01-22 Valeo Térmico, S. A. Intercambiador de calor para gases, en especial de los gases de escape de un motor
DE102014220472A1 (de) * 2014-10-09 2016-04-14 Vaillant Gmbh Abgaswärmeübertrager mit integrierter Filterkombination
ES2618883B1 (es) * 2015-12-21 2018-01-31 Valeo Térmico, S. A. Conjunto de unidad de conducción de gases y filtro de partículas, método de fabricación del mismo e intercambiador de calor para gases, en especial de los gases de escape de un motor
ES2618827B1 (es) * 2015-12-21 2018-06-19 Valeo Térmico, S. A. Intercambiador de calor para gases, en especial de los gases de escape de un motor, y conjunto de unidad de conducción de gases con filtro de partículas
FR3051550B1 (fr) * 2016-05-23 2019-05-03 Total Raffinage Chimie Echangeur de chaleur equipe d'un element filtrant
KR101993165B1 (ko) * 2017-09-14 2019-07-09 동아공업 주식회사 배기가스 재순환장치의 필터링 조립구조
CN110273743A (zh) * 2019-08-02 2019-09-24 苏州大学 一种发动机及其尾气后处理装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000249003A (ja) 1999-03-01 2000-09-12 Isuzu Motors Ltd 排気ガス浄化機能付きｅｇｒクーラー
FR2938051A1 (fr) 2008-11-06 2010-05-07 Valeo Systemes Thermiques Unite d'echange thermique a usage par exemple dans un circuit de recirculation de gaz d'echappement
DE102009043577A1 (de) 2008-10-01 2010-05-12 Witzenmann Gmbh Entkoppelelement
EP2194351A1 (de) 2008-12-03 2010-06-09 Behr GmbH & Co. KG Abgaskühler mit integrierten Partikelfilter für einen Verbrennungsmotor
EP2273095A1 (de) 2009-07-10 2011-01-12 Behr GmbH & Co. KG Wärmetauscher, Abgasrückführsystem und Brennkraftmaschine
JP2011157866A (ja) 2010-02-01 2011-08-18 Mitsubishi Motors Corp 内燃機関の流体濾過冷却装置
US20110247318A1 (en) 2010-04-09 2011-10-13 Denso Corporation Exhaust heat exchanger

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004028469A (ja) * 2002-06-26 2004-01-29 Toyo Radiator Co Ltd 熱交換器コア
JP4224768B2 (ja) * 2002-11-28 2009-02-18 株式会社ティラド Ｅｇｒクーラおよびその製造方法
ES2260971B1 (es) * 2003-06-20 2008-02-16 Valeo Termico, S.A. Intercambiador de calor para gases, en especial de los gases de escape de un motor.
KR20060058330A (ko) * 2004-11-25 2006-05-30 현대자동차주식회사 촉매 필터가 구비된 이지알 쿨러
FR2930278A1 (fr) * 2008-04-18 2009-10-23 Renault Sas Module de recirculation des gaz d'echappement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000249003A (ja) 1999-03-01 2000-09-12 Isuzu Motors Ltd 排気ガス浄化機能付きｅｇｒクーラー
DE102009043577A1 (de) 2008-10-01 2010-05-12 Witzenmann Gmbh Entkoppelelement
FR2938051A1 (fr) 2008-11-06 2010-05-07 Valeo Systemes Thermiques Unite d'echange thermique a usage par exemple dans un circuit de recirculation de gaz d'echappement
EP2194351A1 (de) 2008-12-03 2010-06-09 Behr GmbH & Co. KG Abgaskühler mit integrierten Partikelfilter für einen Verbrennungsmotor
EP2273095A1 (de) 2009-07-10 2011-01-12 Behr GmbH & Co. KG Wärmetauscher, Abgasrückführsystem und Brennkraftmaschine
JP2011157866A (ja) 2010-02-01 2011-08-18 Mitsubishi Motors Corp 内燃機関の流体濾過冷却装置
US20110247318A1 (en) 2010-04-09 2011-10-13 Denso Corporation Exhaust heat exchanger

Also Published As

Publication number Publication date
EP2817503B9 (de) 2016-12-21
ES2421185A2 (es) 2013-08-29
ES2421185B1 (es) 2014-08-11
KR20140120917A (ko) 2014-10-14
EP2817503B2 (de) 2022-12-21
EP2817503A1 (de) 2014-12-31
WO2013124431A1 (fr) 2013-08-29
US20150034056A1 (en) 2015-02-05
ES2421185R1 (es) 2013-12-16

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