EP2194351B1 - Exhaust gas cooler with an integrated particulate filter for an internal combustion engine - Google Patents
Exhaust gas cooler with an integrated particulate filter for an internal combustion engine Download PDFInfo
- Publication number
- EP2194351B1 EP2194351B1 EP08291142A EP08291142A EP2194351B1 EP 2194351 B1 EP2194351 B1 EP 2194351B1 EP 08291142 A EP08291142 A EP 08291142A EP 08291142 A EP08291142 A EP 08291142A EP 2194351 B1 EP2194351 B1 EP 2194351B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- gas cooler
- flow
- designed
- filter element
- 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.)
- Not-in-force
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Classifications
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- 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
- F28D7/1684—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 the conduits having a non-circular cross-section
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- 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
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- 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
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- 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
- F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
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- 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
- F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
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- 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 invention relates to an exhaust gas cooler for an internal combustion engine according to the preamble of claim 1, such as in WO 2006/136372 described.
- Exhaust gas recirculation systems are known in which the exhaust gas is cooled in an exhaust gas cooler and subsequently supplied to the combustion air of the engine either downstream of a turbocharger (high pressure EGR) or upstream of a turbocharger (low pressure EGR).
- Exhaust gas recirculation systems are often used to reduce pollutants of diesel engines, which also provides a particulate filter of the exhaust gas is provided.
- a particulate filter is regularly designed as a regenerative filter, whereby cleaning of the filter takes place by controlled combustion phases. In particular, in such phases but also due to design generally larger particles can be solved that endanger the turbocharger, for example, in the case of low-pressure EGR. It is therefore known to provide a downstream of the actual particulate filter and structurally separate filter member, which is not designed to be regenerative, but at least larger particles caught in a secure manner.
- the cooling fluid is preferably a liquid coolant, for example a low-temperature cooling circuit and / or a cooling circuit of the internal combustion engine.
- the filter member is disposed within the housing, wherein in particular the housing can be flowed through by the fluid. As a result, little space is needed. In particular, the filter member can be flowed around in a simple manner by the fluid and thus contribute to the cooling of the exhaust gas.
- the exhaust gas cooler is flowed through by the exhaust gas at least once in each case in an execution and in a return direction, wherein the filter member is provided in at least one of the two, execution or return direction.
- Such an exhaust gas cooler may be designed, for example, as a U-flow cooler or as a Z-flow cooler, wherein the size remains compact in a longitudinal direction due to the deflection.
- a particular single flow duct of the execution is formed as a pipe member forming the filter member, wherein a plurality of flow channels of the return direction is formed as a bundle of exchanger tubes. In addition to the simple and compact design, this has the advantage that the filtering takes place through the filter member upstream of the exchanger tubes, so that they can not be blocked by larger particles.
- the tube part and / or the bundle of exchanger tubes in end floor parts are added.
- the same floor parts can each hold both the filter element and the exchanger tubes.
- a deflection region for deflecting the flow direction of the exhaust gas is formed on an end face of the exhaust gas cooler.
- the filter element can be designed simply and inexpensively as a tube part with a filter insert fixed therein.
- the filter cartridge may be fixed by welding or brazing in the pipe member, for example.
- a bypass line through which exhaust gas can flow is provided on the exhaust gas cooler, wherein the bypass line branches off, in particular, downstream of the filter element and upstream of a plurality of the flow channels.
- the filter member is designed as non-regenerable in operation permanent filter.
- the filter member can be designed for the entire life of the engine or as an exchangeable component or wearing part.
- the exhaust gas cooler is designed to be arranged downstream of a particle filter.
- the particulate filter assumes the task of a regenerable particulate matter filter and the filter member has primarily the task of a protective filter for larger particles that arise, for example, in a combustion phase of the particulate filter and can endanger a subsequent turbocharger.
- an exhaust gas cooler according to the invention is generally designed to be arranged upstream of a turbocharger (low-pressure exhaust gas recirculation) for the same reason.
- the exhaust gas cooler of the embodiment according to Fig. 1 to Fig. 3 comprises a housing 1, which is traversed by a cooling liquid in the manner of a water jacket (coolant connections not shown).
- the cooling liquid may be connected to an engine cooling circuit or else to a separate low-temperature cooling circuit.
- each is a diesel engine for a motor vehicle, in particular a passenger car.
- the filter element 3 comprises a tube part 3a and a filter insert 3b defined therein by soldering or welding, which is approximately in the drawings 4 and FIG. 5 is shown schematically. Both the exchanger tubes 2 and the tube part 3 a of the filter element 3 are each fixed in the same perforated bottom part 4, for example by welding.
- the exhaust gas cooler is designed as a U-flow cooler and has an inlet side, according to Fig. 1 a connection member 5 with a feed 5a and a Outlet 5b is screwed for the exhaust gas on the inlet-side bottom part 4.
- a deflection region 6 is fixed on the bottom part there.
- the exhaust gas thus flows through the exhaust gas cooler first in an execution through the filter member, is then deflected in the deflection region 6 by 180 ° and flows through the exhaust gas cooler in the return direction through the exchanger tubes.
- the deflection region 6 is formed as a hollow chamber, into which also a bypass channel 7 opens.
- a bypass channel 7 opens.
- the exhaust gas cooler according to the present embodiments consists predominantly of corrosion-resistant steel. Depending on the exhaust gas temperature and design, at least some parts may also be made of aluminum or plastic (eg the water jacket 1).
- the exhaust gas cooler is integrated in an overall system in which the exhaust gas recirculation is designed as a low-pressure feedback.
- the exhaust gas cooler upstream of a regenerable Pumbleflter upstream and downstream of the air side of an exhaust gas turbocharger.
- the admixture of the exhaust gas to the combustion air of the engine takes place here before the compression by the turbocharger.
- the filter member 3 is formed as a non-regenerable permanent filter, which is designed for the entire life of the vehicle.
- a mesh size of the filter is designed so that only particles of a size that could endanger the turbocharger are filtered out.
- Fig. 5 corresponds to the example except for the arrangement of the exchanger tubes Fig. 4 ,
- Fig. 5 are the two end-face floor parts 4 and the cavity of the deflection 6 particularly clearly visible, for better clarity, only one of the exchanger tubes 3 is shown.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Die Erfindung betrifft einen Abgaskühler für einen Verbrennungsmotor nach dem Oberbegriff des Anspruchs 1, wie z.B. in
Es sind Systeme zur Abgas-Rückführung bekannt, bei denen das Abgas in einem Abgaskühler gekühlt und nachfolgend entweder stromabwärts eines Turboladers (Hochdruck-AGR) oder stromaufwärts eines Turboladers (Niederdruck-AGR) der Verbrennungsluft des Motors zugeführt wird. Abgas-Rückführsysteme werden vielfach zur Schadstoffreduzierung von Dieselmotoren eingesetzt, wobei zudem eine Partikelfilterung des Abgases vorgesehen ist. Ein solcher Partikelfilter ist regelmäßig als regenerativer Filter ausgelegt, wobei durch kontrolliert ausgelöste Abbrandphasen eine Reinigung des Filters erfolgt. Insbesondere in solchen Phasen aber auch allgemein konstruktionsbedingt können sich dabei größere Partikel lösen, die zum Beispiel im Fall der Niederdruck-AGR den Turbolader gefährden. Es ist daher bekannt, ein dem eigentlichen Partikelfilter nachgeordnetes und baulich getrenntes Filterglied vorzusehen, das nicht regenerativ ausgelegt ist, aber zumindest größere Partikel auf sichere Weise auffängt.Exhaust gas recirculation systems are known in which the exhaust gas is cooled in an exhaust gas cooler and subsequently supplied to the combustion air of the engine either downstream of a turbocharger (high pressure EGR) or upstream of a turbocharger (low pressure EGR). Exhaust gas recirculation systems are often used to reduce pollutants of diesel engines, which also provides a particulate filter of the exhaust gas is provided. Such a particulate filter is regularly designed as a regenerative filter, whereby cleaning of the filter takes place by controlled combustion phases. In particular, in such phases but also due to design generally larger particles can be solved that endanger the turbocharger, for example, in the case of low-pressure EGR. It is therefore known to provide a downstream of the actual particulate filter and structurally separate filter member, which is not designed to be regenerative, but at least larger particles caught in a secure manner.
Es ist die Aufgabe der Erfindung, einen Abgaskühler für einen Verbrennungsmotor anzugeben, durch den eine Integration von Komponenten ermöglicht ist.It is the object of the invention to provide an exhaust gas cooler for an internal combustion engine, through which an integration of components is made possible.
Diese Aufgabe wird für einen eingangs genannten Abgaskühler efindungsgemäß mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Durch die Integration des Filterglieds in den Abgaskühler kann eine zusätzliche, in den Abgasstrang zu integrierende Baugruppe eingespart werden. Bei dem kühlenden Fluid handelt es sich bevorzugt um ein flüssiges Kühlmittel, zum Beispiel eines Niedertemperatur-Kühlkreislaufs und/oder eines Kühlkreislaufs des Verbrennungsmotors.This object is achieved according to the invention with the characterizing features of claim 1 for an initially mentioned exhaust gas cooler. By integrating the filter element in the exhaust gas cooler, an additional, to be integrated into the exhaust system assembly can be saved. The cooling fluid is preferably a liquid coolant, for example a low-temperature cooling circuit and / or a cooling circuit of the internal combustion engine.
In bevorzugter Ausführungsform ist das Filterglied innerhalb des Gehäuses angeordnet, wobei insbesondere das Gehäuse von dem Fluid durchströmbar ist. Hierdurch wird wenig Bauraum benötigt. Insbesondere kann das Filterglied auf einfache Weise von dem Fluid umströmt werden und so zur Kühlung des Abgases beitragen.In a preferred embodiment, the filter member is disposed within the housing, wherein in particular the housing can be flowed through by the fluid. As a result, little space is needed. In particular, the filter member can be flowed around in a simple manner by the fluid and thus contribute to the cooling of the exhaust gas.
Bei der Erfindung wird der Abgaskühler von dem Abgas zumindest jeweils einmal in einer Hinrichtung und in einer Rückrichtung durchströmt, wobei das Filterglied in zumindest einem von beiden, Hinrichtung oder Rückrichtung, vorgesehen ist. Ein solcher Abgaskühler kann etwa als U-flow-Kühler oder auch als Z-flow-Kühler ausgebildet sein, wobei die Baugröße in einer Längsrichtung aufgrund der Umlenkung kompakt bleibt. In Anspruch 1 ist ein insbesondere einziger Strömungskanal der Hinrichtung als ein das Filterglied bildendes Rohrteil ausgebildet, wobei eine Mehrzahl von Strömungskanälen der Rückrichtung als Bündel von Tauscherrohren ausgebildet ist. Neben der einfachen und kompakten Bauweise hat dies den Vorteil, dass die Filterung durch das Filterglied stromaufwärts der Tauscherrohre erfolgt, so dass diese nicht durch größere Partikel blockiert werden können.In the invention, the exhaust gas cooler is flowed through by the exhaust gas at least once in each case in an execution and in a return direction, wherein the filter member is provided in at least one of the two, execution or return direction. Such an exhaust gas cooler may be designed, for example, as a U-flow cooler or as a Z-flow cooler, wherein the size remains compact in a longitudinal direction due to the deflection. In claim 1, a particular single flow duct of the execution is formed as a pipe member forming the filter member, wherein a plurality of flow channels of the return direction is formed as a bundle of exchanger tubes. In addition to the simple and compact design, this has the advantage that the filtering takes place through the filter member upstream of the exchanger tubes, so that they can not be blocked by larger particles.
Weiterhin vorteilhaft sind dabei im Interesse einer einfachen Herstellung das Rohrteil und/oder das Bündel von Tauscherrohren in endseitigen Bodenteilen aufgenommen. Insbesondere können dabei die gleichen Bodenteile jeweils sowohl das Filterglied als auch die Tauscherrohre halten.Also advantageous in the interest of ease of manufacture are the tube part and / or the bundle of exchanger tubes in end floor parts added. In particular, the same floor parts can each hold both the filter element and the exchanger tubes.
In weiterer Detailgestaltung ist dabei an einer Stirnseite des Abgaskühlers ein Umlenkbereich zur Umlenkung der Strömungsrichtung des Abgases ausgebildet.In a further detailed design, a deflection region for deflecting the flow direction of the exhaust gas is formed on an end face of the exhaust gas cooler.
Das Filterglied kann einfach und kostengünstig als Rohrteil mit darin festgelegtem Filtereinsatz ausgebildet sein. Der Filtereinsatz kann zum Beispiel durch Schweißen oder Löten in dem Rohrteil festgelegt sein.The filter element can be designed simply and inexpensively as a tube part with a filter insert fixed therein. The filter cartridge may be fixed by welding or brazing in the pipe member, for example.
Allgemein vorteilhaft ist für Betriebsarten wie zum Beispiel einer Kaltstartphase eine von Abgas durchströmbare Bypassleitung an dem Abgaskühler vorgesehen, wobei die Bypassleitung insbesondere stromabwärts des Filterglieds und stromaufwärts einer Mehrzahl der Strömungskanäle abzweigt. Hierdurch erfolgt jederzeit eine Filterung des Gasstroms, auch wenn das Abgas über die nicht oder nur wenig gekühlte Bypassleitung strömt.For operating modes such as, for example, a cold start phase, a bypass line through which exhaust gas can flow is provided on the exhaust gas cooler, wherein the bypass line branches off, in particular, downstream of the filter element and upstream of a plurality of the flow channels. As a result, a filtering of the gas flow takes place at any time, even if the exhaust gas flows over the bypass line which is not cooled or only slightly cooled.
Allgemein bevorzugt ist das Filterglied als nicht im Betrieb regenerierbarer Dauerfilter ausgebildet. Je nach Anforderungen kann das Filterglied dabei auf die gesamte Lebensdauer des Verbrennungsmotors ausgelegt sein oder auch als austauschbares Bauteil bzw. Verschleißteil.Generally preferred, the filter member is designed as non-regenerable in operation permanent filter. Depending on requirements, the filter member can be designed for the entire life of the engine or as an exchangeable component or wearing part.
In allgemein bevorzugter Ausführung ist der Abgaskühler zur Anordnung stromabwärts eines Partikelfilters ausgebildet. Dabei übernimmt der Partikelfilter die Aufgabe ein regenerierbaren Feinstaubfilters und das Filterglied hat vorrangig die Aufgabe eines Schutzfilters für größere Partikel, die zum Beispiel in einer Abbrandphase des Partikelfilters entstehen und einen nachfolgenden Turbolader gefährden können. Allgemein vorteilhaft ist ein erfindungsgemäßer Abgaskühler daher aus gleichem Grund zur Anordnung stromaufwärts eines Turboladers (Niederdruck-Abgasrückführung) ausgebildet.In a generally preferred embodiment, the exhaust gas cooler is designed to be arranged downstream of a particle filter. The particulate filter assumes the task of a regenerable particulate matter filter and the filter member has primarily the task of a protective filter for larger particles that arise, for example, in a combustion phase of the particulate filter and can endanger a subsequent turbocharger. For the same reason, an exhaust gas cooler according to the invention is generally designed to be arranged upstream of a turbocharger (low-pressure exhaust gas recirculation) for the same reason.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den nachfolgenden Ausführungsbeispielen sowie den abhängigen Ansprüchen.Further advantages and features of the invention will become apparent from the following embodiments and the dependent claims.
Nachfolgend werden mehrere bevorzugte Ausführungsbeispiele eines Abgaskühlers beschrieben und anhand der anliegenden Zeichnungen näher erläutert.
- Fig. 1
- zeigt eine räumliche Darstellung eines erfindungsgemäßen Ab- gaskühlers.
- Fig. 2
- zeigt eine räumliche Ansicht des Abgaskühlers aus
Fig. 1 ohne Anschlussbereich. - Fig. 3
- zeigt eine Ausschnittvergrößerung des Abgaskühlers aus
Fig. 2 - Fig. 4
- zeigt eine weitere Ausführungsform eines erfindungsgemäßen Abgaskühlers in räumlicher, aufgeschnittener Darstellung.
- Fig. 5
- zeigt eine Abwandlung des Abgaskühlers aus
Fig. 4 .
- Fig. 1
- shows a spatial representation of an exhaust gas cooler according to the invention.
- Fig. 2
- shows a spatial view of the exhaust gas cooler
Fig. 1 without connection area. - Fig. 3
- shows a section enlargement of the exhaust gas cooler
Fig. 2 - Fig. 4
- shows a further embodiment of an exhaust gas cooler according to the invention in a spatial, cutaway view.
- Fig. 5
- shows a modification of the exhaust gas cooler
Fig. 4 ,
Der Abgaskühler der Ausführungsform nach
In dem Gehäuse 1 sind ein Bündel aus Tauscherrohren 2 sowie ein rohrförmiges Filterglied 3 parallel zueinander angeordnet, die jeweils Strömungskanäle für Abgas eines Verbrennungsmotors ausbilden. In den vorliegenden Beispielen handelt es sich jeweils um einen Dieselmotor für ein Kraftfahrzeug, insbesondere einen Personenkraftwagen.In the housing 1, a bundle of
Das Filterglied 3 umfasst ein Rohrteil 3a sowie einen darin durch Verlötung oder Verschweißung festgelegten Filtereinsatz 3b, welcher etwa in den Zeichnungen
Der Abgaskühler ist als U-Flow-Kühler ausgelegt und hat eine Eintrittsseite, auf der gemäß
An dem gegenüberliegenden Ende der Strömungskanäle ist ein Umlenkbereich 6 auf dem dortigen Bodenteil festgelegt. Das Abgas durchströmt den Abgaskühler somit zunächst in einer Hinrichtung durch das Filterglied, wird dann in dem Umlenkbereich 6 um 180° umgelenkt und durchströmt den Abgaskühler in der Rückrichtung durch die Tauscherrohre 2.At the opposite end of the flow channels, a
Der Umlenkbereich 6 ist als hohle Kammer ausgebildet, in die zudem ein Bypasskanal 7 mündet. Hierdurch kann zum Beispiel in einer Kaltstartphase der Abgasstrom zunächst das Filterglied 3 durchströmen und dann ohne weitere Kühlung durch den Bypasskanal 7 abgeführt werden. Der überwiegende Teil der Abgaskühlung erfolgt durch das Bündel von Tauscherrohren 2, wobei eine geringe Wärmeabführung auch durch das kühlmittelumströmte Filterglied 3 gegeben ist.The
Der Abgaskühler gemäß den vorliegenden Ausführungsbeispielen besteht überwiegend aus korrosionsresistentem Stahl. Je nach Abgastemperatur und Auslegung können zumindest einige Teile auch aus Aluminium oder Kunststoff (z. B. der Wassermantel 1) bestehen.The exhaust gas cooler according to the present embodiments consists predominantly of corrosion-resistant steel. Depending on the exhaust gas temperature and design, at least some parts may also be made of aluminum or plastic (eg the water jacket 1).
Der Abgaskühler ist in ein Gesamtsystem eingebunden, bei dem die Abgasrückführung als Niederdruck-Rückführung ausgelegt ist. In Strömungsrichtung ist dem Abgaskühler ein regenerierbarer Partikelflter vorgeordnet und die Luftseite eines Abgas-Turboladers nachgeordnet. Die Beimischung des Abgases zu der Verbrennungsluft des Motors erfolgt hier also vor der Verdichtung durch den Turbolader.The exhaust gas cooler is integrated in an overall system in which the exhaust gas recirculation is designed as a low-pressure feedback. In the flow direction of the exhaust gas cooler upstream of a regenerable Partikelflter upstream and downstream of the air side of an exhaust gas turbocharger. The admixture of the exhaust gas to the combustion air of the engine takes place here before the compression by the turbocharger.
Das Filterglied 3 ist als nicht regenerierbarer Dauerfilter ausgebildet, der für die gesamte Lebensdauer des Fahrzeugs ausgelegt ist. Eine Maschenweite des Filters ist entsprechend so gestaltet, dass nur Partikel einer Größe, die den Turbolader gefährden könnten, ausgefiltert werden.The
Bei dem Ausführungsbeispiel nach
Die Abwandlung nach
Claims (9)
- An exhaust gas cooler for an combustion engine, comprising,
a plurality of exhaust gas conducting flow ducts (2, 3), the flow ducts (2, 3) being arranged inside a housing (1) and being in thermal exchange with a fluid for cooling the exhaust gas, and at least one filter element (3) for filtering particles from the exhaust gas flow being structurally integrated in the exhaust gas cooler, characterized in that the exhaust gas can flow through the exhaust gas cooler at once in the respective forward direction and back direction, wherein the filter element (3) is provided in at least one of the two directions, these being the forward direction or the back direction, and in particular a single flow duct is designed in the forward direction as a tube part (3a) forming the filter element (3), wherein a plurality of flow ducts is designed in the back direction as a bundle of exchanger tubes (2). - The exhaust gas cooler according to claim 1, characterized in that the filter element (3) is arranged inside the housing (1), wherein the fluid can flow in particular through the housing (1).
- The exhaust gas cooler according to claim 1 or 2, characterized in that the tube part (3a) and/or the bundle of exchanger tubes (2) are accommodated in end-side bottom parts (4).
- An exhaust gas cooler according to once of claims 1, to 3, characterized in that a deflection region (6) for deflecting the flow direction of the exhaust gas is configured of an end face of the exhaust gas cooler.
- An exhaust gas cooled according to one of the preceding claims, characterized in that the filter element (3) is designed as a tube part (3a) having a filter insert (3b) fixed therein.
- An exhaust gas cooled according to one of the preceding claims, characterized in that a bypass line (7) through which exhaust gas can flow is provided, wherein the bypass line (7) branches off in particular downstream of the filter element (3) and upstream of a plurality of flow ducts (2).
- An exhaust gas cooler according to one of the preceding claims, characterized in that the filter element (3) is designed as a permanent filter that cannot be regenerated during operation.
- An exhaust gas cooler according to one of the preceding claims, characterized in that the exhaust gas cooler is designed for arrangement downstream of a particulate filter.
- An exhaust gas cooled according to once of the preceding claims, characterized in that the exhaust gas cooler is designed for arrangement upstream of a turbocharger.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08291142A EP2194351B1 (en) | 2008-12-03 | 2008-12-03 | Exhaust gas cooler with an integrated particulate filter for an internal combustion engine |
AT08291142T ATE556284T1 (en) | 2008-12-03 | 2008-12-03 | EXHAUST GAS COOLER WITH INTEGRATED PARTICLE FILTER FOR AN COMBUSTION ENGINE |
US12/591,669 US20100132346A1 (en) | 2008-12-03 | 2009-11-27 | Exhaust-gas cooler for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08291142A EP2194351B1 (en) | 2008-12-03 | 2008-12-03 | Exhaust gas cooler with an integrated particulate filter for an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
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EP2194351A1 EP2194351A1 (en) | 2010-06-09 |
EP2194351B1 true EP2194351B1 (en) | 2012-05-02 |
Family
ID=40602246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08291142A Not-in-force EP2194351B1 (en) | 2008-12-03 | 2008-12-03 | Exhaust gas cooler with an integrated particulate filter for an internal combustion engine |
Country Status (3)
Country | Link |
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US (1) | US20100132346A1 (en) |
EP (1) | EP2194351B1 (en) |
AT (1) | ATE556284T1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2801709A1 (en) | 2013-05-08 | 2014-11-12 | MAHLE Behr GmbH & Co. KG | Exhaust gas cooler |
DE102014118813A1 (en) | 2014-12-17 | 2016-06-23 | Tenneco Gmbh | EGR system with particle filter for gasoline engine |
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WO2016189028A1 (en) | 2015-05-26 | 2016-12-01 | Tenneco Gmbh | Egr system with particle filter and wastegate |
WO2017108615A1 (en) | 2015-12-21 | 2017-06-29 | Valeo Termico, S.A. | Gas pipe unit with particulate filter assembly, method of manufacturing same and heat exchanger for gas, particularly for the exhaust gases of an engine |
US10480460B2 (en) | 2014-12-17 | 2019-11-19 | Tenneco Gmbh | EGR system with particle filter for a gasoline engine |
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DE202009001782U1 (en) * | 2009-02-12 | 2010-07-08 | Mann+Hummel Gmbh | Abgasansaugvorrichtung |
EP2667007B1 (en) * | 2009-07-10 | 2015-04-15 | MAHLE Behr GmbH & Co. KG | Heat exchanger, exhaust gas recirculation system and internal combustion engine |
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CN102900570B (en) * | 2012-09-20 | 2014-11-12 | 浙江银轮机械股份有限公司 | U-shaped exhaust gas recirculation (EGR) cooler |
EP2781730A1 (en) * | 2013-03-19 | 2014-09-24 | Borgwarner Inc. | Compact device for exhaust gas management in an EGR system |
DE102013211221A1 (en) * | 2013-06-14 | 2014-12-18 | Behr Gmbh & Co. Kg | Heat exchanger |
ES2531124B1 (en) | 2013-09-10 | 2016-01-22 | Valeo Térmico, S. A. | Heat exchanger for gases, especially the exhaust gases of an engine |
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JP2021055856A (en) * | 2019-09-27 | 2021-04-08 | 株式会社ユタカ技研 | Heat exchanger |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102005029322A1 (en) * | 2005-06-24 | 2006-12-28 | Behr Gmbh & Co. Kg | Exhaust gas recycling and cooling device for engine has first and second exhaust gas heat exchangers combined in structural unit to form module |
DE102006038706B4 (en) * | 2006-08-18 | 2018-12-27 | Volkswagen Ag | Internal combustion engine with low-pressure exhaust gas recirculation |
WO2008058734A1 (en) * | 2006-11-15 | 2008-05-22 | Behr Gmbh & Co. Kg | Heat exchanger |
DE102007025704A1 (en) * | 2007-06-01 | 2008-12-04 | Volkswagen Ag | Internal-combustion engine, particularly diesel engine of motor vehicle, has exhaust tract, where filter is integrated in exhaust-gas recirculation radiator for reconducted exhaust gas flowing through radiator |
-
2008
- 2008-12-03 EP EP08291142A patent/EP2194351B1/en not_active Not-in-force
- 2008-12-03 AT AT08291142T patent/ATE556284T1/en active
-
2009
- 2009-11-27 US US12/591,669 patent/US20100132346A1/en not_active Abandoned
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2801709A1 (en) | 2013-05-08 | 2014-11-12 | MAHLE Behr GmbH & Co. KG | Exhaust gas cooler |
DE102013208436A1 (en) | 2013-05-08 | 2014-11-13 | MAHLE Behr GmbH & Co. KG | exhaust gas cooler |
DE102014118813A1 (en) | 2014-12-17 | 2016-06-23 | Tenneco Gmbh | EGR system with particle filter for gasoline engine |
WO2016097197A1 (en) | 2014-12-17 | 2016-06-23 | Tenneco Gmbh | Agr system with a particle filter for an otto engine |
DE102015108224A1 (en) | 2014-12-17 | 2016-06-23 | Tenneco Gmbh | EGR system with particle filter for gasoline engine |
US10480460B2 (en) | 2014-12-17 | 2019-11-19 | Tenneco Gmbh | EGR system with particle filter for a gasoline engine |
DE102015108223A1 (en) | 2015-05-26 | 2016-12-01 | Tenneco Gmbh | EGR system with particle filter and wastegate |
WO2016189028A1 (en) | 2015-05-26 | 2016-12-01 | Tenneco Gmbh | Egr system with particle filter and wastegate |
DE102015108223B4 (en) | 2015-05-26 | 2018-04-19 | Tenneco Gmbh | EGR system with particle filter and wastegate |
US10502166B2 (en) | 2015-05-26 | 2019-12-10 | Tenneco Gmbh | EGR system with particle filter and wastegate |
WO2017108615A1 (en) | 2015-12-21 | 2017-06-29 | Valeo Termico, S.A. | Gas pipe unit with particulate filter assembly, method of manufacturing same and heat exchanger for gas, particularly for the exhaust gases of an engine |
Also Published As
Publication number | Publication date |
---|---|
EP2194351A1 (en) | 2010-06-09 |
ATE556284T1 (en) | 2012-05-15 |
US20100132346A1 (en) | 2010-06-03 |
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