EP2817503B2 - Echangeur thermique pour gaz, en particulier pour les gaz d'echappement d'un moteur - Google Patents

Echangeur thermique pour gaz, en particulier pour les gaz d'echappement d'un moteur Download PDF

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Publication number
EP2817503B2
EP2817503B2 EP13708372.1A EP13708372A EP2817503B2 EP 2817503 B2 EP2817503 B2 EP 2817503B2 EP 13708372 A EP13708372 A EP 13708372A EP 2817503 B2 EP2817503 B2 EP 2817503B2
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EP
European Patent Office
Prior art keywords
filter
gas tank
gases
exchanger
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.)
Active
Application number
EP13708372.1A
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German (de)
English (en)
French (fr)
Other versions
EP2817503B1 (fr
EP2817503A1 (fr
EP2817503B9 (fr
Inventor
Javier CUESTA
Francisco Lopez Lazaro
Benjamin Gracia
Jesus Jimenez Palacios
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Valeo Termico SA
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Valeo Termico SA
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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
    • 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
    • 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
    • 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 gases, in particular for the exhaust gases of an engine.
  • the invention applies most especially in engine exhaust gas recirculation (EGRC) heat exchangers.
  • EGRC engine exhaust gas recirculation
  • EGR exchangers The main function of EGR exchangers is the exchange of heat between the exhaust gases and the coolant, with the aim of cooling the gases.
  • EGR heat exchangers are widely used in diesel applications to reduce emissions and are also used in gasoline applications to reduce fuel consumption.
  • EGR exchangers present on the market corresponds to a metallic heat exchanger generally made of stainless steel or aluminum.
  • EGR heat exchangers there are two types: a first type consists of a casing inside which there is a bundle of parallel tubes for the passage of gases, the refrigerant circulating in the casing, 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 casing can be of different types.
  • the tubes are fixed by their ends between two support plates connected to each end of the casing, the two support plates having a plurality of orifices for the installation of the respective tubes.
  • Said support plates are fixed in turn to means of connection with the recirculation line, which can consist of a V-mounting or else of a peripheral connection collar or flange, depending on the design of the recirculation line in which the heat exchanger is assembled.
  • 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 they are assembled by mechanical means and then welded in the oven or welded by arc or laser to ensure the appropriate sealing that requires this application.
  • Some EGR exchangers also include a filter in the exhaust line, which generally consists of an independent component, although it may be partially integrated into the EGR exchanger.
  • the patent EP2273095 relates to a heat exchanger comprising a liquid filter integrated with 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 fasteners.
  • the patent EP2194351 relates to a heat exchanger comprising a particulate filter for the filtration of exhaust gases, 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 position chosen so that the filter is arranged close to an end side of the tube bundle.
  • the objective of the heat exchanger for gases, in particular the exhaust gases of an engine, according to the present invention is to solve the drawbacks exhibited by the exchangers known in the art, by offering a more economical particulate filter. and simple to assemble in the exchanger.
  • the invention relates to a gas heat exchanger according to the subject of independent claim 1.
  • the filter is integrated into the gas tank by welding. A simpler fixing of the filter to the gas tank is thus obtained, since it is not necessary for the filter to have a metal collar or intermediate fixing parts, no more than screws and bolts, to be assembled to the gas 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 joined to the gas tank by furnace brazing.
  • furnace brazing In general, only an assembly by spot or arc welding is sufficient to guarantee a correct fixing of the filter. However, it is possible to improve the fixing by additional furnace brazing.
  • said screen comprises a flat peripheral wing provided for assembly in one piece with the gas tank.
  • 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 wing facilitates the fixing of the filter to the gas tank by welding, without the need for intermediate parts. nor any hardware.
  • the gas tank comprises a flat peripheral edge in its inner part, intended to receive the peripheral wing of the filter with a view to their assembly to one another. In this way, a permanent and robust welding attachment is guaranteed between the two parts.
  • the figure 1 is a partial representation of a heat exchanger 1 which comprises a bundle of tubes 2 arranged inside a casing 3, delimiting an inlet 4 and a gas outlet, said tubes 2 being intended for the circulation of gases with exchange heat with a heat transfer fluid.
  • the tubes 2 are fixed by 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 casing 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 gases, integrated into the gas tank 6 and forming a single inseparable part capable of being 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 into the gas tank 6 by welding, either by spot welding or by arc welding. A simpler fixing of the filter 7 to the gas tank 6 is thus obtained, since it is not necessary for the filter 7 to have a metal collar or intermediate fixing parts, no more than fasteners, to be assembled. to the gas tank 6.
  • the filter 7 comprises a screen 8 of concave configuration as a plate, with a flat peripheral wing 9 provided for its assembly in one piece with the gas tank 6.
  • the configuration in the form of a concave screen 8 makes it possible to increasing the filtration area and on the other hand the flat surface of the peripheral wing 9 facilitates the fixing of the filter 7 to the gas tank 6 by welding, without the need for intermediate parts or fasteners.
  • the gas tank 6 comprises in its inner part a flat peripheral edge 10 intended to receive the peripheral wing 9 of the filter 7 with a view to their assembly to one another. In this way, a permanent and robust welding attachment is guaranteed between the two parts.
  • the gas tank 6 includes another collar 11 provided to fit and assemble with the edge of the box 3, as can be seen in the picture 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)
EP13708372.1A 2012-02-22 2013-02-22 Echangeur thermique pour gaz, en particulier pour les gaz d'echappement d'un moteur Active EP2817503B2 (fr)

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 (fr) 2014-12-31
EP2817503B1 EP2817503B1 (fr) 2016-08-24
EP2817503B9 EP2817503B9 (fr) 2016-12-21
EP2817503B2 true EP2817503B2 (fr) 2022-12-21

Family

ID=47844273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13708372.1A Active EP2817503B2 (fr) 2012-02-22 2013-02-22 Echangeur thermique pour gaz, en particulier pour les gaz d'echappement d'un moteur

Country Status (5)

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

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

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3937635B2 (ja) * 1999-03-01 2007-06-27 いすゞ自動車株式会社 排気ガス浄化機能付きｅｇｒクーラー
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
DE102009043577B4 (de) 2008-10-01 2014-01-23 Witzenmann Gmbh Entkoppelelement mit einem Filterelement
FR2938051B1 (fr) * 2008-11-06 2013-04-26 Valeo Systemes Thermiques Unite d'echange thermique a usage par exemple dans un circuit de recirculation de gaz d'echappement
EP2194351B1 (de) 2008-12-03 2012-05-02 Behr GmbH & Co. KG Abgaskühler mit integrierten Partikelfilter für einen Verbrennungsmotor
EP2273095B1 (de) * 2009-07-10 2014-01-08 Behr GmbH & Co. KG Wärmetauscher, Abgasrückführsystem und Brennkraftmaschine
JP5263191B2 (ja) * 2010-02-01 2013-08-14 三菱自動車工業株式会社 内燃機関の流体濾過冷却装置
JP5533715B2 (ja) * 2010-04-09 2014-06-25 株式会社デンソー 排気熱交換装置

Also Published As

Publication number Publication date
EP2817503B1 (fr) 2016-08-24
ES2421185R1 (es) 2013-12-16
EP2817503A1 (fr) 2014-12-31
ES2421185A2 (es) 2013-08-29
WO2013124431A1 (fr) 2013-08-29
US20150034056A1 (en) 2015-02-05
KR20140120917A (ko) 2014-10-14
EP2817503B9 (fr) 2016-12-21
ES2421185B1 (es) 2014-08-11

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