EP2153054A1 - Échangeur thermique pour gaz d'échappement, système d'échangeur thermique pour gaz d'échappement, moteur à combustion interne, et procédé de traitement des gaz d'échappement d'un moteur à combustion interne - Google Patents

Échangeur thermique pour gaz d'échappement, système d'échangeur thermique pour gaz d'échappement, moteur à combustion interne, et procédé de traitement des gaz d'échappement d'un moteur à combustion interne

Info

Publication number
EP2153054A1
EP2153054A1 EP08749057A EP08749057A EP2153054A1 EP 2153054 A1 EP2153054 A1 EP 2153054A1 EP 08749057 A EP08749057 A EP 08749057A EP 08749057 A EP08749057 A EP 08749057A EP 2153054 A1 EP2153054 A1 EP 2153054A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exhaust gas
temperature heat
low
downstream
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.)
Ceased
Application number
EP08749057A
Other languages
German (de)
English (en)
Inventor
Ulrich Maucher
Eberhard Pantow
Johannes Diem
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
Publication of EP2153054A1 publication Critical patent/EP2153054A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F02M26/24—Layout, e.g. schematics with two or more coolers
    • 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

Definitions

  • Exhaust gas heat exchanger Exhaust gas heat exchanger, exhaust gas heat exchanger system, internal combustion engine and method for treating exhaust gases of an internal combustion engine
  • the invention relates to an exhaust gas heat exchanger system for cooling exhaust gas in a recirculated exhaust gas stream from an internal combustion engine, comprising: an exhaust gas recirculation line system for routing an exhaust stream from an engine exhaust to an engine inlet, an exhaust gas heat exchanger disposed in the exhaust gas recirculation line system having a high temperature heat exchanger and a low temperature Heat exchanger, wherein the low-temperature heat exchanger is arranged downstream of the high-temperature heat exchanger, wherein the high-temperature heat exchanger is arranged in a primary cooling circuit for recooling the high-temperature heat exchanger, and the low-temperature heat exchanger is arranged in a secondary cooling circuit for recooling the low-temperature heat exchanger, and the exhaust gas recirculation conduit system for adjustably guiding the exhaust gas flow from an upstream location to a downstream location at the high temperature heat exchange r (3) over, is designed.
  • the invention relates to an internal combustion engine and a method and a use for treating exhaust gases of an internal combustion engine.
  • the exhaust gas recirculation (abbreviation: EGR), in particular the cooled exhaust gas recirculation is used in today's vehicles due to legal regulations in order to reduce the particulate matter and pollutant, in particular nitrogen oxide reduce emissions.
  • EGR exhaust gas recirculation
  • the known EGR system has an exhaust gas turbocharger for a diesel engine and an EGR line with an EGR valve, which is arranged between the engine and the exhaust gas turbine.
  • the recirculated exhaust gas is preferably fed in two stages, i. cooled in two exhaust gas heat exchangers, which are each cooled by a separate refrigerant circuit and are designed as high-temperature and low-temperature exhaust gas cooler.
  • the cooled, recirculated exhaust gas is combined with compressed and cooled charge air and fed to the intake manifold of the engine.
  • Exhaust gas heat exchangers in particular exhaust gas coolers are known in various embodiments: DE 199 07 163 A1 of the applicant, a welded construction for an exhaust gas heat exchanger was known, which consists of a bundle of exhaust pipes, which are surrounded on its outer side te of coolant, which the cooling circuit of Internal combustion engine is removed.
  • Exhaust heat exchangers are often also equipped with a bypass duct for the exhaust gas, i. for the case that a cooling of the exhaust gas or - for heating purposes - a heating of the coolant is not required or not advantageous.
  • DE 199 62 863 A1 and DE 600 24 390 T2 of the applicant and DE 102 03 003 A1 disclose such exhaust gas heat exchangers with an integrated bypass, wherein a bypass valve, preferably in the form of a bypass flap, is arranged in an inlet diffuser or in the outlet region of the exhaust gas heat exchanger , which acts as a switch for the exhaust gas flow and this passes either through the bypassed by coolant tube bundle or through the bypass channel.
  • Applicant's DE 600 24 390 T2 discloses a two-stage recirculated exhaust gas cooling system for use with a vehicle diesel engine Turbocharger and an exhaust gas recirculation system.
  • the exhaust gas recirculation system has an exhaust gas recirculation valve which controls the flow rate of the recirculated exhaust gas, as well as exhaust pipes, a secondary exhaust gas cooler and a primary exhaust gas cooler.
  • the exhaust gas coolers are heat exchangers which transfer heat from the exhaust gas to liquid coolant. It is known to control the amount of exhaust gas via an exhaust gas recirculation valve, which is recirculated and mixed with the charge air of a turbocharger.
  • a single-stage, equipped with a single heat exchanger exhaust gas recirculation system in which the heating of the coolant circuit can be prevented by the exhaust gas flow is passed through a bypass channel, which is thermally insulated from the exhaust pipes and the coolant.
  • a bypass channel which is thermally insulated from the exhaust pipes and the coolant.
  • an exhaust valve is provided, which is arranged either in the exhaust gas inlet or outlet region and is actuated via an actuator. The exhaust valve is also described in more detail and allows a simple and reliable switching of the exhaust gas flow on the one hand through the heat exchanger part and on the other hand through the bypass channel.
  • the bypass duct for the exhaust gas heat exchanger may also be separate, i. be arranged outside of the heat exchanger.
  • the EGR valve is in the return of the EGR line, i. arranged in the exhaust gas flow direction behind the exhaust gas cooler.
  • DE 198 41 927 A1 has disclosed a device for exhaust gas recirculation with a valve device into which a bypass channel with a bypass flap is integrated.
  • the exhaust gas heat exchanger has a bundle of U-shaped exhaust pipes, which are cooled by a liquid coolant.
  • a device for exhaust gas recirculation has been known, in which an exhaust gas heat exchanger with an exhaust gas recirculation valve (EGR valve) is integrated into a structural unit. This makes it possible to carry out a simplified and therefore cheaper production, since it is possible to dispense with individual parts.
  • EGR valve exhaust gas recirculation valve
  • Exhaust gas recirculation systems of the type mentioned above are also in need of improvement.
  • improvement aspects such as reduced particle content or NO x emissions, lower component temperatures or an increase in performance, it has been shown above all that the operating costs of today's commercial vehicles are mainly caused by fuel costs. The goal should therefore be beyond that to achieve a fuel economy reduction.
  • heat sources or heat inputs are fixedly assigned to a heat exchanger, that is to say they are integrated in either the high-temperature or the low-temperature cooling circuit, which can be disadvantageous for a division of the heat input into the heat exchangers.
  • the invention begins, the object of which is an exhaust gas heat exchanger system, an internal combustion engine and a method and a Use for treating exhaust gases of an internal combustion engine, which allows a further reduced fuel consumption.
  • the object is achieved by an exhaust gas heat exchanger system of the type mentioned in the present invention, the downstream point upstream of the low-temperature heat exchanger and downstream of the high-temperature heat exchanger is arranged and the exhaust gas recirculation line system bypass only to the high-temperature heat exchanger and a control means for Setting the leadership of the exhaust stream through the high-temperature heat exchanger and the primary and / or secondary cooling circuit is associated with a fan.
  • the downstream location is located upstream of the low temperature heat exchanger and downstream of the high temperature heat exchanger.
  • the exhaust gas conducted past the high-temperature heat exchanger is combined in an advantageous manner directly between the high-temperature heat exchanger and the low-temperature heat exchanger with an exhaust system passing through the high-temperature heat exchanger and together fed to the low-temperature heat exchanger.
  • the exhaust gas passage has a bypass to the high-temperature heat exchanger and a control means for adjusting the guidance of the exhaust gas flow through the high-temperature heat exchanger. This makes it possible to switch on the high-temperature stage of the exhaust gas heat exchanger regulated.
  • the high-temperature heat exchanger is arranged in a primary cooling circuit for recooling the high-temperature heat exchanger.
  • the low-temperature heat exchanger is arranged in a secondary cooling circuit for recooling the low-temperature heat exchanger.
  • the invention is based on the consideration that, in the context of over the prior art 04-B-230 - the disclosure of which is hereby incorporated into this application - further developed two-stage components, heat both in a cooling circuit of a high-temperature heat exchanger and in a cooling circuit of a low-temperature heat exchanger can be discharged and thus an improved distribution of heat to the heat exchanger is possible.
  • the invention has recognized that a more efficient utilization of the heat exchanger can thus be achieved, and thus a reduction in the connection of the fan associated with a cooling circuit.
  • High-performance cooling systems generally have high-performance fan systems which have a great potential for reducing drive power, which can be used to reduce fuel consumption.
  • this concept according to the invention a significant reduction in fuel consumption becomes possible.
  • the invention has recognized that a fuel consumption reduction via a reduced fan connection in an exhaust gas heat exchanger system can be achieved by optimizing a distribution of the heat inputs into a high-temperature heat exchanger and a low-temperature heat exchanger.
  • the invention has recognized that the need for cooling air and thus the need for fan switching for the heat exchanger with the concept of the invention is minimized. This can lead to considerable fuel savings and thus operating cost reduction.
  • the invention provides an exhaust gas heat exchanger system, which is designed in two stages and in which the high-temperature stage can be switched on regulated, so that a fan connection is at least reduced.
  • this achieves a practically operating point-dependent distribution of heat quantities to a high-temperature heat exchanger and / or low-temperature heat exchanger with a correspondingly reduced fan connection and fuel consumption.
  • the low-temperature heat exchanger is advantageously arranged downstream downstream of the high-temperature heat exchanger.
  • the heat exchangers are arranged directly one behind the other in series, preferably arranged in a common line section. As a result, a particularly compact design can be achieved.
  • a controlled connection of the high-temperature heat exchanger depending on the heat inputs in the high-temperature heat exchanger and / or low-temperature heat exchanger can be controlled.
  • the exhaust gas can be fed to the high-temperature heat exchanger or completely fed to the low-temperature heat exchanger or between the high-temperature heat exchanger and the low-temperature heat exchanger - depending on the heat input in the heat exchangers, in particular depending on the ratio of heat inputs in the heat exchangers and depending on the capacity of the same - divisible.
  • control means at least in the region of the upstream body and / or the stromabisserten is arranged. It has been found that the control means is particularly advantageously formed in the form of a controlled valve, in particular a controlled three-way valve.
  • control means in the form of a bypass flap may be provided, as described in the Applicant's document 04- B-230. Other or modified or combinations of such control means are also possible.
  • control means may be integrated in unit with the high-temperature and / or low-temperature heat exchanger.
  • the bypass to the high-temperature heat exchanger is the only bypass. In other words, no bypass is provided for the low-temperature heat exchanger. It has been shown that in the context of this development can be dispensed with a bypass for the low-temperature heat exchanger, since the temperature level of the high-temperature heat exchanger associated cooling circuit is usually too high to achieve the desired target temperatures after the AGK.
  • the exhaust system and the high-temperature heat exchanger are arranged in a common housing. It has also proved to be particularly advantageous that an exhaust system and the high-temperature heat exchanger and the low-temperature heat exchanger are arranged in an assembly.
  • a cooling circuit in each case has a corresponding radiator, namely a high-temperature radiator and a low-temperature radiator. peraturradiator, and a corresponding pump, namely according to a primary pump and a secondary pump.
  • the aforementioned radiators are regularly cooled by preferably a single common fan or a plurality of fans whose connection is advantageously reduced according to the concept of the invention.
  • the exhaust gas recirculation system has a motor outlet side and / or a motor inlet side exhaust gas recirculation valve, which is arranged upstream of the high temperature heat exchanger or downstream of the low temperature heat exchanger.
  • the engine cooling is connected to a primary cooling circuit.
  • the re-cooling of the high-temperature heat exchanger can thus be carried out in an advantageous manner in the same circuit as the engine cooling.
  • the engine cooling may be arranged with a regulated valve and a pump in a feedback loop of the primary circuit.
  • a charge air system is connected upstream of the engine intake at the exhaust gas recirculation line system.
  • This has an air intake, which feeds a compressor via an air filter charge air and these via a charge air cooler and a corresponding supply port to the exhaust gas recirculation line system supplies.
  • Other advantageous embodiments of a charge air system can be seen from 04-B-230 and can be connected to the exhaust gas recirculation line system according to the present concept in the context of preferred refinements.
  • the charge air cooler is in parallel with the low-temperature heat exchanger in the secondary integrated cooling circuit.
  • it can also be cooled via the low-temperature radiator.
  • FIG. 1 is a schematic representation of a two-stage exhaust gas heat exchanger with a bypass line to the high-temperature heat exchanger exhaust system and a controlled valve upstream of the high-temperature heat exchanger, in a particularly preferred embodiment of an exhaust gas heat exchanger system according to the concept of the invention;
  • FIG. 2 shows a particularly preferred embodiment of an exhaust gas heat exchanger system with an exhaust gas heat exchanger according to FIG. 1.
  • the exhaust gas heat exchanger 10 has a high-temperature heat exchanger 3, which is heated by a high-temperature cooling system shown in more detail in FIG. cycle, ie a primary cooling circuit 5, is recooled via connections 5A, 5B.
  • the exhaust gas heat exchanger 10 further has a low-temperature heat exchanger 7, which downstream of the high-temperature heat exchanger 3, ie in a fixed by the reference numeral 1, 11 downstream direction of the exhaust stream 1, 11 is arranged downstream of the high-temperature heat exchanger in series.
  • the low-temperature heat exchanger 7 is recooled to a low-temperature cooling circuit, namely a secondary cooling circuit 9 shown in greater detail in FIG. 2, via connections 9A, 9B.
  • the exhaust gas routing from an upstream point 13 to a downstream point 15 can be carried out according to the concept of the invention past the high-temperature heat exchanger 3.
  • the embodiment shown in FIG. 1 provides a bypass 17 to the high-temperature heat exchanger 3 and a control means in the form of a controlled valve 19 at the upstream point 13.
  • the exhaust gas stream 1, 11 complete the high-temperature heat exchanger. 3 or be completely fed to the low-temperature heat exchanger 7 by the exhaust gas is completely passed to the high-temperature heat exchanger 3 through the bypass line 23.
  • the regulated closes Valve 19 completely the bypass line 23.
  • the controlled valve 19 closes completely leading to the high-temperature heat exchanger 3 exhaust pipe 21.
  • the exhaust gas between the high-temperature heat exchanger 3 and the low-temperature heat exchanger 7 can be divided, in a part of the exhaust gas is fed directly to the high-temperature heat exchanger 3 and the remaining part of the exhaust gas via the bypass 17 is fed directly to the low-temperature heat exchanger.
  • the ratio of the exhaust gas flows through the exhaust gas line 21, on the one hand, and the bypass line 23, on the other hand, can be effected by a control, which is not shown in more detail and regulates the regulated valve 19.
  • This control can use the heat inputs in the high-temperature heat exchanger 3 and / or the low-temperature heat exchanger 7 in an advantageous manner to determine a utilization of the heat exchangers 3, 7 and accordingly set the exhaust gas flows through the lines 21, 23 so that a load of the Heat exchanger 3, 7 is optimized in terms of their capacity.
  • FIG. 2 shows a schematic representation of an exhaust gas heat exchanger system 20 with the exhaust gas heat exchanger 10 shown schematically in FIG. 1. Corresponding reference symbols have been used for the same parts.
  • the valve 19 which feeds the exhaust gas mass flow either via the bypass line 23 directly to the low-temperature cooler 7 or Ü over the exhaust pipe 21 feeds directly to the high-temperature heat exchanger.
  • the exhaust heat can be taken out of the high-temperature cooling circuit or primary circuit 5 and fed completely to the low-temperature circuit or the secondary circuit 9 or a heat input can be divided between the two cooling circuits 5, 9 in order to make optimal use of their capacity
  • the exhaust gas heat exchanger 10 is connected to a manifold 29A, 29B of the engine 2, which is shown schematically here with its cylinders 31, via an exhaust gas recirculation valve 25 on the engine exhaust side and an engine exhaust side further exhaust gas recirculation valve 27.
  • a complete or partial exhaust gas flow 1, 11 is exhausted from the engine exhaust side manifold 29A via a turbo exchanger 30 having a first turbine Compressor 33 and designed as a compressor second compressor 35 as E- missionsgas 37 possible and - as required - together with charge air 39 traceable.
  • the turbine serves as a drive for the compressor.
  • a charge air system 40 is connected via the engine inlet side to the low-temperature heat exchanger 7 downstream downstream exhaust gas recirculation valve 27, which also has a charge air cooler 41. Cooled charge air 43 can be supplied via the exhaust gas recirculation valve 27 together with the exhaust gas to the engine intake-side manifold 29B of the engine 2.
  • the intercooler (CAC) 41 is connected to the secondary circuit 9 and insofar arranged parallel to the low-temperature heat exchanger 7 in the secondary cooling circuit 9.
  • the secondary circuit 9 carries a coolant, which in the present case differs from the coolant of the primary circuit 5, and which in turn is recooled via a low-temperature radiator 45 with cooling air 49 sucked by a fan 47.
  • the coolant - present at about 40 0 C - is circulated by means of a pump 51 in the secondary cooling circuit 9 and, as described above, the terminals 9 A, 9 B of the low-temperature heat exchanger 7 is supplied.
  • a cooling element 55 having a cooling element 55 for the engine 2 the pump 57 for circulating the coolant in the primary cooling circuit 5 is connected in the primary cooling circuit 5 via a further regulated valve 53. is used.
  • the coolant - in the present case at about 90 ° C. - of the primary cooling circuit 5 is in turn recooled via a high-temperature radiator 59 by means of the cooling air 49 drawn in by the fan 47.
  • the invention is based on an exhaust gas heat exchanger system for cooling exhaust gas in a recirculated exhaust gas stream 1, 11 of an internal combustion engine 2, comprising: an exhaust gas recirculation line system 4 for guiding an exhaust gas stream 1, 11 from an engine outlet 26 to an engine inlet 28, one in the exhaust gas recirculation -Leitungssystem 4 arranged exhaust gas heat exchanger 10 with a high-temperature heat exchanger 3 and a low-temperature heat exchanger 7, wherein the low-temperature heat exchanger 7 is arranged downstream of the high-temperature heat exchanger 3, wherein the high-temperature heat exchanger 3 in a primary cooling circuit 5 for recooling the high temperature Heat exchanger 3 is arranged, and the low-temperature heat exchanger 7 is arranged in a secondary cooling circuit 9 for recooling the low-temperature heat exchanger 7, and the exhaust gas recirculation line system 4 for adjustably guiding the exhaust stream 1, 11 from an upstream point 3 to a downstream point 15, the high-temperature heat exchanger 3 over, is designed
  • the concept of the invention provides that the downstream point 15 is arranged upstream of the low-temperature heat exchanger 7 and downstream of the high-temperature heat exchanger 3 and the exhaust gas recirculation Line system 4 has a bypass 17 only to the high-temperature heat exchanger 3 and a control means for adjusting the guidance of the exhaust stream 1, 11 through the high-temperature heat exchanger 3 and the primary and / or secondary cooling circuit 5, 9, a fan 47 is assigned.
  • the invention leads to an internal combustion engine 2, a method for treating exhaust gases of an internal combustion engine 2 and a use of the exhaust gas heat exchanger system 20th
  • the exhaust gas heat exchanger system has a low-temperature bypass or a combination of a high-temperature bypass and a low-temperature bypass.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

Système à ligne de recyclage de gaz d'échappement (4), comprenant : un échangeur thermique pour gaz d'échappement (10) disposé dans le système à ligne de recyclage de gaz d'échappement, un échangeur thermique haute température (3) et un échangeur thermique basse température (7), l'échangeur thermique haute température (3) étant monté dans un circuit de refroidissement primaire (5), et l'échangeur thermique basse température (7) étant monté dans un circuit de refroidissement secondaire (4), et le système à ligne de recyclage de gaz d'échappement (4) étant conçu pour le guidage réglable du courant de gaz d'échappement (1, 11) d'un point amont (13) vers un point aval (15), en passant dans l'échangeur thermique haute température (3). L'invention est caractérisée en ce que le point aval (15) est disposé en amont de l'échangeur thermique basse température (7) et en aval de l'échangeur thermique haute température (3), et en ce que le système à ligne de recyclage de gaz d'échappement (4) présente une dérivation (17) uniquement pour l'échangeur thermique haute température (3), et un moyen de régulation destiné au réglage du guidage du courant de gaz d'échappement (1, 11) à travers l'échangeur thermique haute température (3), et en ce qu'un ventilateur (47) est associé au circuit primaire et/ou secondaire (5, 9).
EP08749057A 2007-04-23 2008-04-23 Échangeur thermique pour gaz d'échappement, système d'échangeur thermique pour gaz d'échappement, moteur à combustion interne, et procédé de traitement des gaz d'échappement d'un moteur à combustion interne Ceased EP2153054A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007019089A DE102007019089A1 (de) 2007-04-23 2007-04-23 Abgaswärmetauscher, Abgaswärmetauschersystem, Brennkraftmotor und Verfahren zum Behandeln von Abgasen eines Brennkraftmotors
PCT/EP2008/003254 WO2008128762A1 (fr) 2007-04-23 2008-04-23 Échangeur thermique pour gaz d'échappement, système d'échangeur thermique pour gaz d'échappement, moteur à combustion interne, et procédé de traitement des gaz d'échappement d'un moteur à combustion interne

Publications (1)

Publication Number Publication Date
EP2153054A1 true EP2153054A1 (fr) 2010-02-17

Family

ID=39688856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08749057A Ceased EP2153054A1 (fr) 2007-04-23 2008-04-23 Échangeur thermique pour gaz d'échappement, système d'échangeur thermique pour gaz d'échappement, moteur à combustion interne, et procédé de traitement des gaz d'échappement d'un moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP2153054A1 (fr)
DE (1) DE102007019089A1 (fr)
WO (1) WO2008128762A1 (fr)

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SE534270C2 (sv) * 2008-11-05 2011-06-21 Scania Cv Ab Arrangemang för kylning av återcirkulerande avgaser hos en förbränningsmotor
DE102009017719B4 (de) * 2009-04-11 2019-05-23 Volkswagen Ag Vorrichtung und Verfahren zur Regelung der Temperatur der Ladeluft
US8925317B2 (en) 2012-07-16 2015-01-06 General Electric Company Engine with improved EGR system
US10316801B2 (en) * 2017-01-16 2019-06-11 Ford Global Technologies, Llc Method and system for an exhaust heat exchanger

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DE19750588B4 (de) 1997-11-17 2016-10-13 MAHLE Behr GmbH & Co. KG Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor
JPH11200955A (ja) * 1998-01-06 1999-07-27 Mitsubishi Motors Corp 排気ガス還流装置
DE19907163C2 (de) 1998-04-24 2003-08-14 Behr Gmbh & Co Wärmetauscher, insbesondere Abgaswärmetauscher
DE19841927A1 (de) 1998-09-14 2000-03-16 Wahler Gmbh & Co Gustav Einrichtung zur Rückführung eines Abgasstromes zum Saugrohr einer Brennkraftmaschine
DE19906401C1 (de) 1999-02-16 2000-08-31 Ranco Inc Of Delaware Wilmingt Abgasrückführsystem
US6244256B1 (en) 1999-10-07 2001-06-12 Behr Gmbh & Co. High-temperature coolant loop for cooled exhaust gas recirculation for internal combustion engines
DE19962863B4 (de) 1999-12-24 2013-09-19 Behr Gmbh & Co. Kg Wärmeübertrager
JP2002188526A (ja) * 2000-12-20 2002-07-05 Hino Motors Ltd Ｅｇｒ装置
DE10203003B4 (de) 2002-01-26 2007-03-15 Behr Gmbh & Co. Kg Abgaswärmeübertrager
FR2876417A1 (fr) * 2004-10-11 2006-04-14 Renault Sas Systeme de recirculation des gaz brules provenant d'un moteur a combustion interne d'un vehicule
JP3928642B2 (ja) * 2005-01-18 2007-06-13 いすゞ自動車株式会社 Ｅｇｒ装置
DE102005029322A1 (de) * 2005-06-24 2006-12-28 Behr Gmbh & Co. Kg Vorrichtung zur Rückführung und Kühlung von Abgas für eine Brennkraftmaschine
DE102006057488B4 (de) * 2006-12-06 2018-02-08 Audi Ag Brennkraftmaschine und Verfahren zum Betreiben einer Brennkraftmaschine

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Also Published As

Publication number Publication date
WO2008128762A1 (fr) 2008-10-30
DE102007019089A1 (de) 2008-10-30

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