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EP1367253A1 - Heat exchanger for an EGR system with an integrated by-pass duct. - Google Patents

Heat exchanger for an EGR system with an integrated by-pass duct. Download PDF

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Publication number
EP1367253A1
EP1367253A1 EP03380127A EP03380127A EP1367253A1 EP 1367253 A1 EP1367253 A1 EP 1367253A1 EP 03380127 A EP03380127 A EP 03380127A EP 03380127 A EP03380127 A EP 03380127A EP 1367253 A1 EP1367253 A1 EP 1367253A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
pass duct
egr system
duct
pass
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.)
Granted
Application number
EP03380127A
Other languages
German (de)
French (fr)
Other versions
EP1367253B2 (en
EP1367253B1 (en
Inventor
Xoan Xosé Hermida Dominguez
Carlos Manuel Castano Gonzalez
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.)
BorgWarner Emissions Systems Spain SL
Original Assignee
Estampaciones Noroeste S A
Estampaciones Noroeste SA
Dayco Ensa SL
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
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Application filed by Estampaciones Noroeste S A, Estampaciones Noroeste SA, Dayco Ensa SL filed Critical Estampaciones Noroeste S A
Publication of EP1367253A1 publication Critical patent/EP1367253A1/en
Application granted granted Critical
Publication of EP1367253B1 publication Critical patent/EP1367253B1/en
Publication of EP1367253B2 publication Critical patent/EP1367253B2/en
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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
    • 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
    • F28D7/163—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 with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • 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
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
    • 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

Definitions

  • the present invention refers to a heat exchanger for an exhaust gas recirculation system (EGR) of an internal combustion engine, and more specifically, a heat exchanger with an integrated by-pass duct.
  • EGR exhaust gas recirculation system
  • the object of the present invention is to provide a heat exchanger as an integral element of an EGR system for recirculated exhaust gases of an internal combustion engine with an integrated by-pass duct through which the exhaust gases can recirculate during the engine starting and/or in low temperature or load conditions.
  • the problem the present invention proposes to solve is to provide a heat exchanger for recycled exhaust gases including, in a single unit, both the refrigeration chamber for cooling the gases as well as a by-pass duct through which the gases must circulate when their cooling is not necessary, and that this unit be easily integrated in the engine.
  • a flange On the gas intake side of the casing and as a coupling means to the EGR system gas intake device, a flange is arranged with a housing for the refrigerating tubes of the refrigeration chamber and another housing for the by-pass duct, a separation area existing between said housings.
  • the shape of these housings is related to both the desired distribution of the areas intended for the refrigeration chamber and the by-pass duct as well as the shape of the latter.
  • Said coupling flange to the gas intake device would be welded to the corresponding casing cap.
  • part of the exhaust gases from the engine go to the exterior through the exhaust pipe and another part is recirculated.
  • the amount to be recirculated is controlled by the EGR valve that, in determined circumstances can even be closed and not recirculate anything, for example in a maximum power situation.
  • the recirculated gases mix with the clean air and return to the engine through the intake manifold.
  • the present invention provides a heat exchanger with the integrated by-pass duct.
  • FIGS 1 to 5 show a heat exchanger 1 for exhaust gases according to the present invention formed by a cylindrical casing 2 housing a refrigeration chamber 3 inside constituted of a set of interconnected tubes 4, commonly known in the art, through which a refrigerating liquid circulates entering through the duct 5 and exiting through the duct 7 and a duct 9 acting as a by-pass duct so that those exhaust gases not to be cooled can pass through it.
  • a refrigerating liquid circulates entering through the duct 5 and exiting through the duct 7 and a duct 9 acting as a by-pass duct so that those exhaust gases not to be cooled can pass through it.
  • the casing 2 is closed with caps 11 and 13 on both sides, serving as fixing means of the tubes 4 and of the by-pass duct 9. These caps envelope the edges of the casing 2, which aids in the assembly process of the tubes 4 and the welding process.
  • a suitable valve (not shown), actuated by the corresponding control means, drive the exhaust gases towards the refrigeration chamber 3 or towards the by-pass duct 9.
  • Coupling the heat exchanger to the gas intake manifold of the engine is carried out by using conventional means such as the flange 16, which can be the same as the flange 15 for economic or process reasons, or other known means in the art such as a re-driving cone plus a flange or a re-driving cone and a ring.
  • conventional means such as the flange 16, which can be the same as the flange 15 for economic or process reasons, or other known means in the art such as a re-driving cone plus a flange or a re-driving cone and a ring.
  • the flange 15 housing 21 and 22 dimensions are closely related to the areas dedicated to the refrigeration chamber 3 and to the by-pass duct 9.
  • the presence of a separation area 23 of the housings 21 and 22 can also be seen in the flange 15, in relation with the available space between the refrigerating tubes 4 and the by-pass duct, it is useful as a closing means in combination with said valve.
  • the first housing 21 has a circular segment shape of a surface somewhat larger than a semicircle of the casing 2, and the second housing 22 also has a circular segment shape although with rounded vertices.
  • the separation area 23 is located between both housings, with its central span delimited by straight lines. Twelve tubes 4 are located in the first housing 21, and the oval-shaped by-pass duct 9 is located in the housing 22.
  • Figures 6 and 7 show flanges 18 and 19 in which the two housings 21 and 22 have a circular segment shape.
  • the by-pass duct 9 has a semicircular shape, and in the second it has an oval shape. It could also have a circular shape and in each case there would be a different degree of use of the space delimited by the housing 22.
  • the dimensioning of the housings 21 and 22, the refrigeration area using one or another number and type of refrigerating tubes 4, and the by-pass duct 9 will depend on the functional needs of each case.
  • the circular shape will be chosen for the by-pass duct 9 if a better relationship is desired between the passing area and the exchange surface to minimize the heat exchange
  • a circular segment shape of Figure 6 will be chosen if the intention is to take maximum advantage of the surface delimited by the housing 22 to minimize the load losses
  • the oval shape of Figure 7 will be chosen if the intention is to have an intermediate option between the previous ones.
  • the refrigeration chamber 3 will be permanently active since the circulation of the refrigerating liquid through the tubes 4 will form part of the general cooling circuit of the engine. Subsequently, the possibility of using double-walled by-pass ducts 9 with an intermediate air chamber is considered in order to ensure that the cooling of the gases circulating through it do not exceed a predetermined value.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

A heat exchanger (1) for an EGR system with an integrated by-pass duct (9). A heat exchanger for recirculated exhaust gases of an internal combustion engine is proposed with an integrated by-pass duct (9) through which the exhaust gases can recirculate during the engine starting and/or in low temperature or load conditions.
The exchanger is formed by a cylindrical casing (2) inside of which the typical refrigeration chamber (3) in this type of devices is assembled, as well as the by-pass duct (9) . As a coupling means to the gas intake device of the EGR system, a flange (15,16) is used with a housing for the refrigerating tubes of the refrigeration chamber and another housing (22) for the by-pass duct; with a separation area (23) between said housings.
The by-pass duct can be a double-walled duct with an intermediate air chamber to prevent the cooling of the gases circulating through it.

Description

    FIELD OF THE INVENTION
  • The present invention refers to a heat exchanger for an exhaust gas recirculation system (EGR) of an internal combustion engine, and more specifically, a heat exchanger with an integrated by-pass duct.
    • BACKGROUND OF THE INVENTION
  • In the current state of the art, different exhaust gas recirculation systems in internal combustion engines are known, which are called EGR systems.
  • These systems recirculate exhaust gases from the exhaust manifold towards the intake manifold of the engine after subjecting them to a cooling process with the object of reducing the amount of NOx emissions.
  • As it is not ideal to cool the exhaust gases in certain engine functioning conditions, it has been proposed in the art to use by-pass ducts permitting the escape gases to be recirculated without passing through the heat exchanger, under the control of a valve driving the exhaust gases either towards the heat exchanger or towards said by-pass duct, according to pre-established conditions.
  • One of those proposals is that which is disclosed in US patent 4,147,141, describing an EGR system with a by-pass duct parallel to the heat exchanger and an EGR valve keeping the module closed until the temperature of the engine reaches a certain predetermined value and, once opened, directing the exhaust gases towards the by-pass duct when its temperature is lower than a certain limit and to the heat exchanger in the opposite case.
  • Another proposal is disclosed in US patent 5,203,311, including a first control valve in the by-pass duct and a second valve in the heat exchanger.
  • Another proposal is disclosed in US patent 5,617,726 in which a by-pass duct is used in a different manner according to the circumstances of the load of the engine and its components.
  • Another proposal is disclosed in patent application WO 02/10574, including a heat exchanger for exhaust gases with a refrigeration chamber, a by-pass duct and means for directing the exhaust gases either towards the refrigeration chamber or towards the by-pass duct and in which those components are suitably integrated to form a unit being easily assembled in the engine.
  • The automobile industry demands improvements in the known EGR systems in order to tend to different needs. One of them is motivated by the increasing requirements of the administrative regulations on the admissible NOx emissions limitations. Another need to satisfy is to aid in the automobile engine assembly by simplifying the design of its components to improve its integration capacity.
    • SUMMARY OF THE INVENTION
  • The object of the present invention is to provide a heat exchanger as an integral element of an EGR system for recirculated exhaust gases of an internal combustion engine with an integrated by-pass duct through which the exhaust gases can recirculate during the engine starting and/or in low temperature or load conditions.
  • In other words, the problem the present invention proposes to solve is to provide a heat exchanger for recycled exhaust gases including, in a single unit, both the refrigeration chamber for cooling the gases as well as a by-pass duct through which the gases must circulate when their cooling is not necessary, and that this unit be easily integrated in the engine.
  • According to the invention, the heat exchanger is formed by a cylindrical casing inside of which the refrigeration chamber is arranged, in a well-known manner, constituted of a plurality of tubes (which we shall call refrigerating tubes hereinafter) through which a refrigerating liquid circulates and a by-pass tube.
  • On the gas intake side of the casing and as a coupling means to the EGR system gas intake device, a flange is arranged with a housing for the refrigerating tubes of the refrigeration chamber and another housing for the by-pass duct, a separation area existing between said housings.
  • The shape of these housings is related to both the desired distribution of the areas intended for the refrigeration chamber and the by-pass duct as well as the shape of the latter.
  • Taking the inner circular section of the cylindrical casing as a reference, the preferred shape for said housings would be that of two circular segments delimited in said circular section by means of a separation strip, the one intended for the refrigeration chamber being larger than a semicircle. The present invention also comprises other shapes and particularly oval shapes.
  • Said separation strip or area acts as a closing means of the exchanger gas intake side in combination with a valve suitable for opening one of said two housings and simultaneously closing the other, depending on the needs established by the EGR system.
  • An additional feature of the invention is that said casing is closed by means of external caps enveloping its edges to aid in assembling the refrigerating tubes and to aid in carrying out the welds.
  • Said coupling flange to the gas intake device would be welded to the corresponding casing cap.
  • An additional feature of the invention is that said by-pass duct is a double-walled duct with an intermediate air chamber.
  • Other features and advantages of the present invention will be seen in the detailed description following an illustrative and by no means limiting embodiment of its object in relation to the accompanying drawings.
    • DESCRIPTION OF THE DRAWINGS
  • Figure 1 shows a perspective view of a heat exchanger for exhaust gases according to the present invention and Figure 2 shows a perspective view of an ordered dismantling thereof.
  • Figure 3 shows a plan view of a heat exchanger for exhaust gases according to the present invention.
  • Figure 4 shows a BB section view of Figure 3 of a heat exchanger for exhaust gases according to the present invention.
  • Figure 5 shows a frontal view of the flange of the heat exchanger shown in the previous figures.
  • Figures 6 and 7 show frontal views of embodiment variants of the flange of the heat exchanger object of the present invention.
    • DETAILLED DESCRIPTION OF THE INVENTION
  • In an EGR system, part of the exhaust gases from the engine go to the exterior through the exhaust pipe and another part is recirculated. The amount to be recirculated is controlled by the EGR valve that, in determined circumstances can even be closed and not recirculate anything, for example in a maximum power situation. The recirculated gases mix with the clean air and return to the engine through the intake manifold.
  • In the EGR systems including a by-pass duct, the recirculated gases may or may not be cooled, depending on the position of the corresponding valve.
  • For this type of EGR systems the present invention provides a heat exchanger with the integrated by-pass duct.
  • Figures 1 to 5 show a heat exchanger 1 for exhaust gases according to the present invention formed by a cylindrical casing 2 housing a refrigeration chamber 3 inside constituted of a set of interconnected tubes 4, commonly known in the art, through which a refrigerating liquid circulates entering through the duct 5 and exiting through the duct 7 and a duct 9 acting as a by-pass duct so that those exhaust gases not to be cooled can pass through it.
  • The casing 2 is closed with caps 11 and 13 on both sides, serving as fixing means of the tubes 4 and of the by-pass duct 9. These caps envelope the edges of the casing 2, which aids in the assembly process of the tubes 4 and the welding process.
  • The heat exchanger 1 for exhaust gases according to the present invention is coupled with the gas intake device (not shown) by means of the flange 15 in which a housing 21 for the refrigerating tubes 4 and a housing for the by-pass duct 9 are delimited.
  • A suitable valve (not shown), actuated by the corresponding control means, drive the exhaust gases towards the refrigeration chamber 3 or towards the by-pass duct 9.
  • Coupling the heat exchanger to the gas intake manifold of the engine is carried out by using conventional means such as the flange 16, which can be the same as the flange 15 for economic or process reasons, or other known means in the art such as a re-driving cone plus a flange or a re-driving cone and a ring.
  • Following Figures 4 and 5 particularly, it can be seen that the flange 15 housing 21 and 22 dimensions are closely related to the areas dedicated to the refrigeration chamber 3 and to the by-pass duct 9. The presence of a separation area 23 of the housings 21 and 22 can also be seen in the flange 15, in relation with the available space between the refrigerating tubes 4 and the by-pass duct, it is useful as a closing means in combination with said valve. The first housing 21 has a circular segment shape of a surface somewhat larger than a semicircle of the casing 2, and the second housing 22 also has a circular segment shape although with rounded vertices. The separation area 23 is located between both housings, with its central span delimited by straight lines. Twelve tubes 4 are located in the first housing 21, and the oval-shaped by-pass duct 9 is located in the housing 22.
  • Figures 6 and 7 show flanges 18 and 19 in which the two housings 21 and 22 have a circular segment shape. In the first, the by-pass duct 9 has a semicircular shape, and in the second it has an oval shape. It could also have a circular shape and in each case there would be a different degree of use of the space delimited by the housing 22.
  • As a skilled person will understand well, the dimensioning of the housings 21 and 22, the refrigeration area using one or another number and type of refrigerating tubes 4, and the by-pass duct 9 will depend on the functional needs of each case. Thus, for example, the circular shape will be chosen for the by-pass duct 9 if a better relationship is desired between the passing area and the exchange surface to minimize the heat exchange, and a circular segment shape of Figure 6 will be chosen if the intention is to take maximum advantage of the surface delimited by the housing 22 to minimize the load losses, and finally the oval shape of Figure 7 will be chosen if the intention is to have an intermediate option between the previous ones.
  • The refrigeration chamber 3 will be permanently active since the circulation of the refrigerating liquid through the tubes 4 will form part of the general cooling circuit of the engine. Subsequently, the possibility of using double-walled by-pass ducts 9 with an intermediate air chamber is considered in order to ensure that the cooling of the gases circulating through it do not exceed a predetermined value.
  • Regarding the embodiments described in the invention, those amendments comprised within the scope defined by the following claims can be introduced.

Claims (8)

  1. A heat exchanger (1) for an EGR system including a refrigeration chamber (3) formed by a plurality of refrigerating tubes (4), a by-pass duct (9) of those exhaust gases that should not enter the refrigeration chamber (3) and coupling means to the gas intake exchanger device (1), characterized in that:
    a) the refrigeration chamber (3) and the by-pass duct (9) are located inside a cylindrical casing (2);
    b) said coupling means include a flange (15, 18, 19) with a housing (21) for the refrigerating tubes (4) of the refrigeration chamber (3), a housing (22) for the by-pass duct (9) and a separation area (23) between them.
  2. A heat exchanger (1) for an EGR system according to claim 1, characterized in that said housings (21, 22) of the flange (18, 19) have a circular segment shape.
  3. A heat exchanger (1) for an EGR system according to claim 2, characterized in that the housing (22) of the flange (15) for the by-pass duct (9) has rounded vertices.
  4. A heat exchanger (1) for an EGR system according to claims 1 or 2, characterized in that the transversal section of the by-pass duct (9) has a circular segment shape.
  5. A heat exchanger (1) for an EGR system according to any of the claims 1 to 3, characterized in that the transversal section of the by-pass duct (9) has a circular shape.
  6. A heat exchanger (1) for an EGR system according to any of the claims 1 to 3, characterized in that the transversal section of the by-pass duct (9) has an oval shape.
  7. A heat exchanger (1) for an EGR system according to any of the previous claims, characterized in that the casing (2) is closed by means of external caps (11, 13) enveloping its edges, to aid in assembling the refrigerating tubes (4) and in carrying out the welds.
  8. A heat exchanger (1) for an EGR system according to any of the previous claims, characterized in that the by-pass duct (9) is a double-walled duct with an intermediate air chamber.
EP03380127A 2002-05-28 2003-05-28 Heat exchanger for an EGR system with an integrated by-pass duct. Expired - Lifetime EP1367253B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200201218A ES2209618B1 (en) 2002-05-28 2002-05-28 HEAT EXCHANGER FOR AN "EGR" SYSTEM WITH AN INTEGRATED DERIVATION CONDUCT.
ES200201218 2002-05-28

Publications (3)

Publication Number Publication Date
EP1367253A1 true EP1367253A1 (en) 2003-12-03
EP1367253B1 EP1367253B1 (en) 2006-07-12
EP1367253B2 EP1367253B2 (en) 2010-06-16

Family

ID=29414913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03380127A Expired - Lifetime EP1367253B2 (en) 2002-05-28 2003-05-28 Heat exchanger for an EGR system with an integrated by-pass duct.

Country Status (4)

Country Link
EP (1) EP1367253B2 (en)
AT (1) ATE333046T1 (en)
DE (1) DE60306717T3 (en)
ES (2) ES2209618B1 (en)

Cited By (12)

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DE102005040612A1 (en) * 2005-08-27 2007-03-01 Behr Gmbh & Co. Kg Exhaust gas heat exchanger for exhaust gas recirculation system of internal combustion system, has bypass pipe, designed as high-grade steel pipe having jacket made of high temperature stable plastic, arranged in coolant flowing housing
WO2007060172A1 (en) * 2005-11-22 2007-05-31 Dayco Ensa, S.L. Three-pass heat exchanger for an egr system
WO2005111385A3 (en) * 2004-05-07 2007-09-07 Behr Gmbh & Co Kg Heat exchanger for internal combustion engines
WO2008003486A1 (en) * 2006-07-06 2008-01-10 Behr Gmbh & Co. Kg Exhaust gas cooler, in particular for a motor vehicle
ES2321783A1 (en) * 2006-09-21 2009-06-10 Valeo Termico, S.A. Heat exchanger for gases, in particular for the exhaust gases of an engine
CN101013008B (en) * 2006-02-03 2011-05-11 株式会社电装 Heat exchanger
WO2012143462A3 (en) * 2011-04-20 2013-09-12 Behr Gmbh & Co. Kg Exhaust gas cooler for cooling combustion exhaust gas of an internal combustion engine, water collecting adapter, exhaust gas cooling system and method for manufacturing an exhaust gas cooling system
EP2743488A1 (en) * 2012-12-11 2014-06-18 BorgWarner Inc. Built-in exhaust gas management device
JP2015025604A (en) * 2013-07-25 2015-02-05 株式会社ユタカ技研 Heat exchanger and heat exchange device
EP2295921A3 (en) * 2009-07-30 2015-02-25 Behr GmbH & Co. KG Heat exchanger comprising connecting section with sealing and tensioning surface
CN104500282A (en) * 2014-12-15 2015-04-08 无锡隆盛科技股份有限公司 EGR (exhaust gas recirculation) cooler with variable cooling efficiency
EP2944913A1 (en) * 2014-05-16 2015-11-18 Borgwarner Emissions Systems Spain, S.L.U. Heat exchange device

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JP4775287B2 (en) * 2006-10-18 2011-09-21 株式会社デンソー Heat exchanger
SE537803C2 (en) 2011-09-30 2015-10-20 Scania Cv Ab EGR cooler and internal combustion engine with such EGR cooler
CN113335019B (en) * 2021-06-15 2022-09-30 东风汽车集团股份有限公司 Integrated heat exchanger of automobile heat management system

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Cited By (24)

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US8118082B2 (en) 2004-05-07 2012-02-21 Behr Gmbh & Co. Kg Heat exchanger in particular for exhaust coolers on internal combustion engines
WO2005111385A3 (en) * 2004-05-07 2007-09-07 Behr Gmbh & Co Kg Heat exchanger for internal combustion engines
DE102005040612A1 (en) * 2005-08-27 2007-03-01 Behr Gmbh & Co. Kg Exhaust gas heat exchanger for exhaust gas recirculation system of internal combustion system, has bypass pipe, designed as high-grade steel pipe having jacket made of high temperature stable plastic, arranged in coolant flowing housing
US7721792B2 (en) 2005-08-27 2010-05-25 Behr Gmbh & Co. Kg Exhaust gas heat exchanger
ES2322728A1 (en) * 2005-11-22 2009-06-25 Dayco Ensa, S.L. Three-pass heat exchanger for an egr system
EP2025913A1 (en) * 2005-11-22 2009-02-18 Dayco Ensa, S.L. Three-pass heat exchanger for an EGR system
ES2322728B1 (en) * 2005-11-22 2010-04-23 Dayco Ensa, S.L. THREE-STEP HEAT EXCHANGER FOR AN "EGR" SYSTEM.
US7931013B2 (en) 2005-11-22 2011-04-26 Dayco Ensa, S.L. Three-pass heat exchanger for an EGR system
WO2007060172A1 (en) * 2005-11-22 2007-05-31 Dayco Ensa, S.L. Three-pass heat exchanger for an egr system
CN101013008B (en) * 2006-02-03 2011-05-11 株式会社电装 Heat exchanger
WO2008003486A1 (en) * 2006-07-06 2008-01-10 Behr Gmbh & Co. Kg Exhaust gas cooler, in particular for a motor vehicle
ES2321783A1 (en) * 2006-09-21 2009-06-10 Valeo Termico, S.A. Heat exchanger for gases, in particular for the exhaust gases of an engine
ES2321783B1 (en) * 2006-09-21 2010-01-12 Valeo Termico, S.A. HEAT EXCHANGER FOR GASES, ESPECIALLY OF EXHAUST GASES OF AN ENGINE.
EP2295921A3 (en) * 2009-07-30 2015-02-25 Behr GmbH & Co. KG Heat exchanger comprising connecting section with sealing and tensioning surface
EP2295921B1 (en) 2009-07-30 2019-01-16 MAHLE Behr GmbH & Co. KG Heat exchanger comprising connecting section with sealing and tensioning surface
WO2012143462A3 (en) * 2011-04-20 2013-09-12 Behr Gmbh & Co. Kg Exhaust gas cooler for cooling combustion exhaust gas of an internal combustion engine, water collecting adapter, exhaust gas cooling system and method for manufacturing an exhaust gas cooling system
US9169756B2 (en) 2011-04-20 2015-10-27 Mahle International Gmbh Exhaust gas cooler for cooling combustion exhaust gas of an internal combustion engine, water collecting adapter, exhaust gas cooling system and method for manufacturing an exhaust gas cooling system
EP2743488A1 (en) * 2012-12-11 2014-06-18 BorgWarner Inc. Built-in exhaust gas management device
WO2014090792A1 (en) * 2012-12-11 2014-06-19 Borgwarner Inc. Built-in exhaust gas management device
JP2015025604A (en) * 2013-07-25 2015-02-05 株式会社ユタカ技研 Heat exchanger and heat exchange device
EP2944913A1 (en) * 2014-05-16 2015-11-18 Borgwarner Emissions Systems Spain, S.L.U. Heat exchange device
US20150330712A1 (en) * 2014-05-16 2015-11-19 Borgwarner Emissions Systems Spain, S.L.U. Device for heat exchange
CN105089860A (en) * 2014-05-16 2015-11-25 西班牙博格华纳排放系统公司 Device for heat exchange
CN104500282A (en) * 2014-12-15 2015-04-08 无锡隆盛科技股份有限公司 EGR (exhaust gas recirculation) cooler with variable cooling efficiency

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DE60306717T3 (en) 2011-01-05
ES2209618A1 (en) 2004-06-16
EP1367253B2 (en) 2010-06-16
DE60306717D1 (en) 2006-08-24
ATE333046T1 (en) 2006-08-15
ES2268306T3 (en) 2007-03-16
ES2268306T5 (en) 2010-10-27
EP1367253B1 (en) 2006-07-12
DE60306717T2 (en) 2007-08-02

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