EP3085943A1 - Exhaust gas recirculation assembly with exhaust manifold - Google Patents

Exhaust gas recirculation assembly with exhaust manifold Download PDF

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Publication number
EP3085943A1
EP3085943A1 EP16159192.0A EP16159192A EP3085943A1 EP 3085943 A1 EP3085943 A1 EP 3085943A1 EP 16159192 A EP16159192 A EP 16159192A EP 3085943 A1 EP3085943 A1 EP 3085943A1
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EP
European Patent Office
Prior art keywords
exhaust gas
gas recirculation
cylinder head
exhaust
recirculation assembly
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
EP16159192.0A
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German (de)
French (fr)
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EP3085943B1 (en
Inventor
Peter Foessl
Peter Staub
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP3085943A1 publication Critical patent/EP3085943A1/en
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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
    • F02M26/41—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds; characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • 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
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—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 invention relates to an exhaust gas recirculation assembly with a cylinder head and an exhaust manifold.
  • exhaust gas is usually taken from the exhaust pipe and admixed with the combustion air. This is for the reduction of nitrogen oxides (NOx) and compliance with emission limits in accordance with applicable regulations.
  • NOx nitrogen oxides
  • the exhaust gas can for example be taken directly from the exhaust manifold and be reintroduced on the intake side of the internal combustion engine. Depending on the conditions, the exhaust gas is either cooled before it is supplied to the combustion air, or it is supplied uncooled.
  • the exhaust gas recirculation assembly In order to cool the exhaust gas, the exhaust gas recirculation assembly to an exhaust gas cooler, through which the exhaust gas can be performed. If the exhaust gas is to be supplied uncooled, a bypass is opened (for example, by a vacuum box that opens or closes a bypass flap valve), so that the exhaust gas flows through a bypass channel and bypasses the heat exchanger.
  • the amount of exhaust gas that is recycled as a whole, is controlled by a control valve that allows, for example, map-controlled the desired volume flow rate.
  • the object of the invention is to provide an exhaust gas recirculation assembly, which is characterized by a small space required.
  • the invention provides in an exhaust gas recirculation assembly of the type mentioned above, that the exhaust manifold is provided with an exhaust gas recirculation branch, which is directly connected to an exhaust gas recirculation inlet in the cylinder head.
  • the invention is based on the basic concept of not leading the exhaust branched off at the exhaust manifold by hoses to be mounted separately on the exhaust manifold, but instead introducing it directly from the exhaust manifold into the cylinder head. As a result, a highly integrated solution is created, which is characterized by small space.
  • an exhaust manifold gasket is provided, through which passes the connection between the exhaust gas recirculation branch and the exhaust gas recirculation inlet.
  • the sealing of the exhaust gas recirculation channel thus takes place through a modified exhaust manifold gasket, so that no additional installation effort arises.
  • a heat exchanger branch branches off from the cylinder head, through which exhaust gas can be conducted to a heat exchanger. This makes it possible to supply the recirculated exhaust gas to a heat exchanger so that it can be cooled in the desired manner.
  • a heat exchanger is attached to the cylinder head, which is connected to the heat exchanger branch. This results in a compact design that requires no external pipes or hoses.
  • the heat exchanger is preferably provided with an exhaust gas recirculation valve, so that the amount of exhaust gas to be recirculated and flowing through the heat exchanger can be controlled.
  • bypass is preferably integrated.
  • the bypass makes it possible to recirculate exhaust gas without cooling.
  • the integration into the cylinder head in turn results in a very compact design, which requires no external hoses or pipes.
  • the bypass channel is preferably associated with a bypass valve which is mounted on the cylinder head.
  • the bypass valve makes it possible to control the volume flow of the exhaust gas flowing through the bypass passage.
  • bypass channel is air-gap-insulated. As a result, the thermal loads of the cylinder head can be reduced.
  • the exhaust gas recirculation valve and / or the bypass valve is a control valve.
  • a bypass flap which can be switched only between an open and a closed state in the prior art, provides an adjustable bypass valve great advantages.
  • flow losses are reduced by a volume flow through the exhaust gas recirculation system is (at least almost) completely avoided when both valves are closed.
  • a cylinder head 10 which serves in a conventional manner to supply intake air to a plurality of cylinders of an internal combustion engine and to remove combustion gases from the cylinders.
  • the intake air is provided via an intake system 12, and the combustion gases are exhausted via an exhaust manifold 14.
  • a part of the exhaust gas can be taken from the exhaust line of the internal combustion engine and returned to the intake side.
  • two different flow paths are possible.
  • a first flow path passes through a heat exchanger 16, in which heat can be withdrawn from the exhaust gas.
  • a coolant inlet 18 and a coolant outlet 20 are provided.
  • an exhaust gas recirculation valve 22 is provided in order to control or regulate the volume flow through the heat exchanger 16.
  • a second flow path extends through a bypass channel 24, through which exhaust gas can be passed directly from the exhaust gas to the suction side, bypassing the heat exchanger 16.
  • the bypass channel 24 is associated with a bypass valve 26, with which the volume flow through the bypass channel can be controlled or regulated.
  • the exhaust gas is here removed from the exhaust system by means of an exhaust gas recirculation branch 30, which is provided on the exhaust manifold 14 and is directly connected to an exhaust gas recirculation inlet 32.
  • the exhaust gas recirculation inlet 32 is provided in the cylinder head 10.
  • the exhaust gas recirculation inlet 32 branches then in the cylinder head in a heat exchanger branch 34 and a bypass branch 36th
  • the heat exchanger branch 34 opens on a side surface of the cylinder head 10 and leads directly to the heat exchanger 16, which is attached to the cylinder head 10.
  • the bypass branch 36 leads to the bypass channel 24, which is integrated here into the cylinder head 10.
  • the bypass channel 24 is designed here with air gap insulation with an inner sleeve 38, so that the thermal loads of the cylinder head are reduced and a higher exhaust gas recirculation gas temperature can be achieved.
  • the inner sleeve 38 can be inserted into a hole open towards the outside of the cylinder head, which is then closed with a locking screw 40.
  • the exhaust-gas recirculation branch 30 opens directly into the bypass branch 36, namely into the opening which, at the in FIG. 3 shown embodiment of the screw plug 40 is closed.
  • the exhaust gas recirculation branch 30 extends in the embodiment of the FIG. 3a further to the side than in the embodiment of the FIG. 3 the case is.
  • the advantage of direct recirculation of the exhaust gas into the cylinder head is that no external pipes or hoses are needed to carry the exhaust gas.
  • the expense of mounting such pipes or hoses is avoided because the exhaust gas recirculation branch is directly connected to the exhaust gas recirculation inlet when the exhaust manifold 14 is attached to the cylinder head 10.
  • a slightly modified exhaust manifold gasket can be used, which seals in the region of the interface between the exhaust gas recirculation branch 30 and the exhaust gas recirculation inlet 32.

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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)
  • Exhaust-Gas Circulating Devices (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

Die Erfindung betrifft eine Abgasrückführungsbaugruppe mit einem Zylinderkopf (10) und einem Abgaskrümmer (14), bei welcher der Abgaskrümmer (14) mit einem Abgasrückführabzweig (30) versehen ist, der unmittelbar mit einem Abgasrückführeinlass (32) im Zylinderkopf (10) verbunden ist.The invention relates to an exhaust gas recirculation assembly comprising a cylinder head (10) and an exhaust manifold (14), wherein the exhaust manifold (14) is provided with an exhaust gas recirculation branch (30) directly connected to an exhaust gas recirculation inlet (32) in the cylinder head (10).

Description

Die Erfindung betrifft eine Abgasrückführungsbaugruppe mit einem Zylinderkopf und einem Abgaskrümmer.The invention relates to an exhaust gas recirculation assembly with a cylinder head and an exhaust manifold.

Bei Verbrennungskraftmaschinen wird üblicherweise Abgas aus der Abgasleitung entnommen und der Verbrennungsluft beigemischt. Dies dient der Reduktion von Stickoxiden (NOx) und der Einhaltung von Emissionsgrenzen gemäß den geltenden Vorschriften.In internal combustion engines, exhaust gas is usually taken from the exhaust pipe and admixed with the combustion air. This is for the reduction of nitrogen oxides (NOx) and compliance with emission limits in accordance with applicable regulations.

Das Abgas kann beispielsweise unmittelbar am Abgaskrümmer entnommen werden und auf der Ansaugseite der Verbrennungskraftmaschine wieder eingeleitet werden. In Abhängigkeit von den Rahmenbedingungen wird das Abgas entweder gekühlt, bevor es der Verbrennungsluft zugeführt wird, oder es wird ungekühlt zugeführt.The exhaust gas can for example be taken directly from the exhaust manifold and be reintroduced on the intake side of the internal combustion engine. Depending on the conditions, the exhaust gas is either cooled before it is supplied to the combustion air, or it is supplied uncooled.

Um das Abgas kühlen zu können, weist die Abgasrückführungsbaugruppe einen Abgaskühler auf, durch den das Abgas geführt werden kann. Wenn das Abgas ungekühlt zugeführt werden soll, wird ein Bypass geöffnet (beispielsweise durch eine Unterdruckdose, die ein Bypass-Klappenventil öffnet oder schließt), sodass das Abgas durch einen Bypasskanal strömt und den Wärmetauscher umgeht. Die Menge des Abgases, das insgesamt rückgeführt wird, wird dabei gesteuert durch ein Regelventil, das beispielsweise kennfeldgesteuert den gewünschten Volumendurchsatz ermöglicht.In order to cool the exhaust gas, the exhaust gas recirculation assembly to an exhaust gas cooler, through which the exhaust gas can be performed. If the exhaust gas is to be supplied uncooled, a bypass is opened (for example, by a vacuum box that opens or closes a bypass flap valve), so that the exhaust gas flows through a bypass channel and bypasses the heat exchanger. The amount of exhaust gas that is recycled as a whole, is controlled by a control valve that allows, for example, map-controlled the desired volume flow rate.

Im Hinblick auf die zunehmende Komplexität der Verbrennungskraftmaschinen und die verschiedenen Systeme, die zum Erzielen eines niedrigen Kraftstoffverbrauchs und geringer Abgasemissionen eingesetzt werden, ist der Bauraum, der für eine Abgasrückführungsbaugruppe notwendig ist, immer ein wichtiges Thema.In view of the increasing complexity of internal combustion engines and the various systems used to achieve low fuel consumption and low exhaust emissions, the space required for an exhaust gas recirculation assembly has always been an important issue.

Die Aufgabe der Erfindung besteht daher darin, eine Abgasrückführungsbaugruppe zu schaffen, die sich durch einen geringen notwendigen Bauraum auszeichnet.The object of the invention is to provide an exhaust gas recirculation assembly, which is characterized by a small space required.

Zur Lösung dieser Aufgabe ist erfindungsgemäß bei einer Abgasrückführungsbaugruppe der eingangs genannten Art vorgesehen, dass der Abgaskrümmer mit einem Abgasrückführabzweig versehen ist, der unmittelbar mit einem Abgasrückführeinlass im Zylinderkopf verbunden ist. Die Erfindung beruht auf dem Grundkonzept, das am Abgaskrümmer abgezweigte Abgas nicht durch separat am Abgaskrümmer zu montierende Schläuche zu führen, sondern vom Abgaskrümmer direkt in den Zylinderkopf einzuleiten. Hierdurch ist eine hochintegrierte Lösung geschaffen, die sich durch geringen Bauraum auszeichnet. Weiterhin ergibt sich ein geringerer Montageaufwand, da der Abgasrückführabzweig des Abgaskrümmers automatisch mit dem Abgasrückführeinlass im Zylinderkopf verbunden wird, wenn der Abgaskrümmer am Zylinderkopf montiert wird. Weiterhin müssen keine thermischen Entkopplungsmaßnahmen getroffen werden, wie dies im Stand der Technik zum thermischen Längenausgleich notwendig ist; dort ist beispielsweise ein Wellbalg notwendig, der zu zusätzlichen Kosten führt.To achieve this object, the invention provides in an exhaust gas recirculation assembly of the type mentioned above, that the exhaust manifold is provided with an exhaust gas recirculation branch, which is directly connected to an exhaust gas recirculation inlet in the cylinder head. The invention is based on the basic concept of not leading the exhaust branched off at the exhaust manifold by hoses to be mounted separately on the exhaust manifold, but instead introducing it directly from the exhaust manifold into the cylinder head. As a result, a highly integrated solution is created, which is characterized by small space. Furthermore, there is less installation effort, since the Abgasrückführabzweig the exhaust manifold is automatically connected to the exhaust gas recirculation inlet in the cylinder head when the exhaust manifold is mounted on the cylinder head. Furthermore, no thermal decoupling measures must be taken, as is necessary in the prior art for thermal length compensation; There, for example, a corrugated bellows is necessary, which leads to additional costs.

Gemäß einer bevorzugten Ausführungsform ist eine Abgaskrümmerdichtung vorgesehen, durch die hindurch die Verbindung zwischen Abgasrückführabzweig und Abgasrückführeinlass verläuft. Die Abdichtung des Abgasrückführkanals erfolgt also durch eine modifizierte Abgaskrümmerdichtung, sodass kein zusätzlicher Montageaufwand entsteht.According to a preferred embodiment, an exhaust manifold gasket is provided, through which passes the connection between the exhaust gas recirculation branch and the exhaust gas recirculation inlet. The sealing of the exhaust gas recirculation channel thus takes place through a modified exhaust manifold gasket, so that no additional installation effort arises.

Vorzugsweise ist vorgesehen, dass vom Zylinderkopf ein Wärmetauscherabzweig abgeht, durch den Abgas zu einem Wärmetauscher geleitet werden kann. Dies ermöglicht es, das rückzuführende Abgas einem Wärmetauscher zuzuführen, sodass es in der gewünschten Weise gekühlt werden kann.It is preferably provided that a heat exchanger branch branches off from the cylinder head, through which exhaust gas can be conducted to a heat exchanger. This makes it possible to supply the recirculated exhaust gas to a heat exchanger so that it can be cooled in the desired manner.

Vorzugsweise ist vorgesehen, dass am Zylinderkopf ein Wärmetauscher angebracht ist, der an den Wärmetauscherabzweig angeschlossen ist. Hierdurch ergibt sich eine kompakte Konstruktion, die keine externen Rohre oder Schläuche erfordert.It is preferably provided that a heat exchanger is attached to the cylinder head, which is connected to the heat exchanger branch. This results in a compact design that requires no external pipes or hoses.

Der Wärmetauscher ist vorzugsweise mit einem Abgasrückführungsventil versehen, sodass die Menge des rückzuführenden und über den Wärmetauscher strömenden Abgases gesteuert werden kann.The heat exchanger is preferably provided with an exhaust gas recirculation valve, so that the amount of exhaust gas to be recirculated and flowing through the heat exchanger can be controlled.

In den Zylinderkopf ist vorzugsweise ein Bypass integriert. Der Bypass ermöglicht es, Abgas ungekühlt zurückzuführen. Durch die Integration in den Zylinderkopf ergibt sich wiederum ein sehr kompakter Aufbau, der keine externen Schläuche oder Rohre erfordert.In the cylinder head a bypass is preferably integrated. The bypass makes it possible to recirculate exhaust gas without cooling. The integration into the cylinder head in turn results in a very compact design, which requires no external hoses or pipes.

Dem Bypasskanal ist vorzugsweise ein Bypassventil zugeordnet, das am Zylinderkopf angebracht ist. Das Bypassventil ermöglicht es, den Volumenstrom des Abgases zu steuern, das durch den Bypasskanal strömt.The bypass channel is preferably associated with a bypass valve which is mounted on the cylinder head. The bypass valve makes it possible to control the volume flow of the exhaust gas flowing through the bypass passage.

Vorzugsweise ist vorgesehen, dass der Bypasskanal luftspaltisoliert ist. Hierdurch lassen sich die thermischen Belastungen des Zylinderkopfes reduzieren.It is preferably provided that the bypass channel is air-gap-insulated. As a result, the thermal loads of the cylinder head can be reduced.

Vorzugsweise ist vorgesehen, dass das Abgasrückführungsventil und/oder das Bypassventil ein Regelventil ist. Dies ermöglicht es, den Volumenstrom an rückgeführtem Abgas präzise auf jeweils optimale Werte einzustellen. Insbesondere im Vergleich mit einer Bypassklappe, die im Stand der Technik lediglich zwischen einem geöffnetem und einem geschlossenen Zustand geschaltet werden kann, bietet ein regelbares Bypassventil große Vorteile. Weiterhin werden Strömungsverluste verringert, indem ein Volumenstrom durch das Abgasrückführungssystem (zumindest nahezu) vollständig vermieden ist, wenn beide Ventile geschlossen sind.It is preferably provided that the exhaust gas recirculation valve and / or the bypass valve is a control valve. This makes it possible to precisely adjust the volume flow of recirculated exhaust gas to optimum values. In particular, in comparison with a bypass flap, which can be switched only between an open and a closed state in the prior art, provides an adjustable bypass valve great advantages. Furthermore, flow losses are reduced by a volume flow through the exhaust gas recirculation system is (at least almost) completely avoided when both valves are closed.

Die Erfindung wird nachfolgend anhand einer Ausführungsform beschrieben, die in den beigefügten Zeichnungen dargestellt ist. In diesen zeigen:

  • Figur 1 in einer perspektivischen Explosionsansicht einen Zylinderkopf mit Abgasrückführungsbaugruppe;
  • Figur 2 den Zylinderkopf von Figur 1 mit Abgasrückführungsbaugruppe in einer ersten perspektivischen Ansicht;
  • Figur 3 den Zylinderkopf mit Abgasrückführungsbaugruppe in einer zweiten perspektivischen Ansicht;
  • Figur 3a den Zylinderkopf von Figur 3 in einer Ausführungsvariante; und
  • Figur 4 in einer schematischen, perspektivischen Ansicht die Bauteile der Abgasrückführungsbaugruppe.
The invention will be described below with reference to an embodiment shown in the accompanying drawings. In these show:
  • FIG. 1 in a perspective exploded view of a cylinder head with exhaust gas recirculation assembly;
  • FIG. 2 the cylinder head of FIG. 1 with exhaust gas recirculation assembly in a first perspective view;
  • FIG. 3 the cylinder head with exhaust gas recirculation assembly in a second perspective view;
  • FIG. 3a the cylinder head of FIG. 3 in a variant embodiment; and
  • FIG. 4 in a schematic, perspective view of the components of the exhaust gas recirculation assembly.

Anhand der Figuren 1 und 2 wird nachfolgend der grundlegende Aufbau einer Abgasrückführungsbaugruppe erläutert, wie sie im Rahmen der vorliegenden Erfindung ausgeführt ist.Based on Figures 1 and 2 will now be explained the basic structure of an exhaust gas recirculation assembly, as embodied in the present invention.

Es ist ein Zylinderkopf 10 zu sehen, der in an sich bekannter Weise dazu dient, mehreren Zylindern einer Verbrennungskraftmaschine Ansaugluft zuzuführen und Verbrennungsgase von den Zylindern abzuführen. Die Ansaugluft wird über ein Ansaugsystem 12 bereitgestellt, und die Verbrennungsgase werden über einen Abgaskrümmer 14 abgeführt.It can be seen a cylinder head 10, which serves in a conventional manner to supply intake air to a plurality of cylinders of an internal combustion engine and to remove combustion gases from the cylinders. The intake air is provided via an intake system 12, and the combustion gases are exhausted via an exhaust manifold 14.

Bei bestimmten Betriebszuständen kann ein Teil des Abgases aus dem Abgasstrang der Verbrennungskraftmaschine entnommen und zur Ansaugseite zurückgeführt werden. Hierfür sind zwei unterschiedliche Strömungswege möglich.In certain operating conditions, a part of the exhaust gas can be taken from the exhaust line of the internal combustion engine and returned to the intake side. For this purpose, two different flow paths are possible.

Ein erster Strömungsweg verläuft durch einen Wärmetauscher 16, in welchem dem Abgas Wärme entzogen werden kann. Zu diesem Zweck sind ein Kühlmitteleinlass 18 und ein Kühlmittelauslass 20 vorgesehen. Um den Volumenstrom durch den Wärmetauscher 16 zu steuern oder zu regeln, ist ein Abgasrückführungsventil 22 vorgesehen.A first flow path passes through a heat exchanger 16, in which heat can be withdrawn from the exhaust gas. For this purpose, a coolant inlet 18 and a coolant outlet 20 are provided. In order to control or regulate the volume flow through the heat exchanger 16, an exhaust gas recirculation valve 22 is provided.

Ein zweiter Strömungsweg verläuft durch einen Bypasskanal 24, durch den Abgas unter Umgehung des Wärmetauschers 16 direkt von der Abgas- zur Ansaugseite geleitet werden kann. Dem Bypasskanal 24 ist ein Bypassventil 26 zugeordnet, mit dem der Volumenstrom durch den Bypasskanal gesteuert oder geregelt werden kann.A second flow path extends through a bypass channel 24, through which exhaust gas can be passed directly from the exhaust gas to the suction side, bypassing the heat exchanger 16. The bypass channel 24 is associated with a bypass valve 26, with which the volume flow through the bypass channel can be controlled or regulated.

Das Abgas wird hier aus dem Abgasstrang mittels eines Abgasrückführabzweigs 30 entnommen, der am Abgaskrümmer 14 vorgesehen ist und unmittelbar mit einem Abgasrückführeinlass 32 verbunden ist.The exhaust gas is here removed from the exhaust system by means of an exhaust gas recirculation branch 30, which is provided on the exhaust manifold 14 and is directly connected to an exhaust gas recirculation inlet 32.

Bei der in Figur 3 gezeigten Ausführungsform ist der Abgasrückführeinlass 32 im Zylinderkopf 10 vorgesehen. Der Abgasrückführeinlass 32 verzweigt sich dann im Zylinderkopf in einen Wärmetauscherabzweig 34 und einen Bypassabzweig 36.At the in FIG. 3 In the embodiment shown, the exhaust gas recirculation inlet 32 is provided in the cylinder head 10. The exhaust gas recirculation inlet 32 branches then in the cylinder head in a heat exchanger branch 34 and a bypass branch 36th

Der Wärmetauscherabzweig 34 mündet an einer Seitenfläche des Zylinderkopfes 10 und führt unmittelbar zum Wärmetauscher 16, der am Zylinderkopf 10 angebracht ist. Der Bypassabzweig 36 führt zum Bypasskanal 24, der hier in den Zylinderkopf 10 integriert ist. Der Bypasskanal 24 ist hier luftspaltisoliert mit einer Innenhülse 38 ausgeführt, sodass die thermischen Belastungen des Zylinderkopfes reduziert sind und eine höhere Abgasrückführ-Gastemperatur erreicht werden kann.The heat exchanger branch 34 opens on a side surface of the cylinder head 10 and leads directly to the heat exchanger 16, which is attached to the cylinder head 10. The bypass branch 36 leads to the bypass channel 24, which is integrated here into the cylinder head 10. The bypass channel 24 is designed here with air gap insulation with an inner sleeve 38, so that the thermal loads of the cylinder head are reduced and a higher exhaust gas recirculation gas temperature can be achieved.

Die Innenhülse 38 kann in eine zur Außenseite des Zylinderkopfes hin geöffnete Bohrung eingesetzt werden, die dann mit einer Verschlussschraube 40 verschlossen wird.The inner sleeve 38 can be inserted into a hole open towards the outside of the cylinder head, which is then closed with a locking screw 40.

Bei der in Figur 3a gezeigten Ausführungsvariante mündet der Abgasrückführabzweig 30 unmittelbar in den Bypassabzweig 36, nämlich in die Öffnung, die bei der in Figur 3 gezeigten Ausführungsform von der Verschlussschraube 40 verschlossen ist. Zu diesem Zweck erstreckt sich der Abgasrückführabzweig 30 bei der Ausführungsvariante der Figur 3a weiter zur Seite, als dies bei der Ausführungsform der Figur 3 der Fall ist.At the in FIG. 3a In the embodiment variant shown, the exhaust-gas recirculation branch 30 opens directly into the bypass branch 36, namely into the opening which, at the in FIG. 3 shown embodiment of the screw plug 40 is closed. For this purpose, the exhaust gas recirculation branch 30 extends in the embodiment of the FIG. 3a further to the side than in the embodiment of the FIG. 3 the case is.

Der Vorteil der unmittelbaren Rückführung des Abgases in den Zylinderkopf besteht darin, dass keine externen Rohre oder Schläuche notwendig sind, um das Abgas zu führen. Außerdem wird der Aufwand des Montierens solcher Rohre oder Schläuche vermieden, da der Abgasrückführabzweig unmittelbar mit dem Abgasrückführeinlass dann verbunden wird, wenn der Abgaskrümmer 14 am Zylinderkopf 10 angebracht wird. Zur Abdichtung kann eine geringfügig modifizierte Abgaskrümmerdichtung verwendet werden, die im Bereich der Schnittstelle zwischen dem Abgasrückführabzweig 30 und dem Abgasrückführeinlass 32 abdichtet.The advantage of direct recirculation of the exhaust gas into the cylinder head is that no external pipes or hoses are needed to carry the exhaust gas. In addition, the expense of mounting such pipes or hoses is avoided because the exhaust gas recirculation branch is directly connected to the exhaust gas recirculation inlet when the exhaust manifold 14 is attached to the cylinder head 10. For sealing, a slightly modified exhaust manifold gasket can be used, which seals in the region of the interface between the exhaust gas recirculation branch 30 and the exhaust gas recirculation inlet 32.

Zusätzlich zum erheblichen Bauraumgewinn wird die Robustheit der Abgasrückführungsbaugruppe erhöht, da keinerlei Maßnahmen für einen thermischen Längenausgleich im Bereich des Abgasrückführabzweigs getroffen werden müssen.In addition to the considerable space gain, the robustness of the exhaust gas recirculation assembly is increased because no measures for a thermal length compensation in the exhaust gas recirculation branch must be taken.

Claims (10)

Abgasrückführungsbaugruppe mit einem Zylinderkopf (10) und einem Abgaskrümmer (14), dadurch gekennzeichnet, dass der Abgaskrümmer (14) mit einem Abgasrückführabzweig (30) versehen ist, der unmittelbar mit einem Abgasrückführeinlass (32) im Zylinderkopf (10) verbunden ist.Exhaust gas recirculation assembly comprising a cylinder head (10) and an exhaust manifold (14), characterized in that the exhaust manifold (14) is provided with an exhaust gas recirculation branch (30) directly connected to an exhaust gas recirculation inlet (32) in the cylinder head (10). Abgasrückführungsbaugruppe nach Anspruch 1, dadurch gekennzeichnet, dass eine Abgaskrümmerdichtung vorgesehen ist, durch die hindurch die Verbindung zwischen Abgasrückführabzweig (30) und Abgasrückführeinlass (32) verläuft.Exhaust gas recirculation assembly according to claim 1, characterized in that an exhaust manifold gasket is provided, through which the connection between the exhaust gas recirculation branch (30) and exhaust gas recirculation inlet (32) extends. Abgasrückführungsbaugruppe nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass vom Zylinderkopf (10) ein Wärmetauscherabzweig (34) abgeht, durch den Abgas zu einem Wärmetauscher (16) geleitet werden kann.Exhaust gas recirculation assembly according to claim 1 or claim 2, characterized in that from the cylinder head (10) a heat exchanger branch (34) goes off, can be passed through the exhaust gas to a heat exchanger (16). Abgasrückführungsbaugruppe nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass der Abgasrückführabzweig (30) unmittelbar in einen Bypasskanal (36) mündet.Exhaust gas recirculation assembly of claim 1 or claim 2, characterized in that the exhaust gas recirculation branch (30) opens directly into a bypass channel (36). Abgasrückführungsbaugruppe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am Zylinderkopf (10) ein Wärmetauscher (16) angebracht ist, der an den Wärmetauscherabzweig (34) angeschlossen ist.Exhaust gas recirculation assembly according to one of the preceding claims, characterized in that on the cylinder head (10) a heat exchanger (16) is mounted, which is connected to the heat exchanger branch (34). Abgasrückführungsbaugruppe nach Anspruch 5, dadurch gekennzeichnet, dass der Wärmetauscher (16) mit einem Abgasrückführungsventil (22) versehen ist.Exhaust gas recirculation assembly according to claim 5, characterized in that the heat exchanger (16) is provided with an exhaust gas recirculation valve (22). Abgasrückführungsbaugruppe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in den Zylinderkopf (10) ein Bypasskanal (24) integriert ist.Exhaust gas recirculation assembly according to one of the preceding claims, characterized in that in the cylinder head (10) has a bypass channel (24) is integrated. Abgasrückführungsbaugruppe nach Anspruch 7, dadurch gekennzeichnet, dass dem Bypasskanal (24) ein Bypassventil (26) zugeordnet ist, das am Zylinderkopf (10) angebracht ist.Exhaust gas recirculation assembly according to claim 7, characterized in that the bypass channel (24) is associated with a bypass valve (26) which is mounted on the cylinder head (10). Abgasrückführungsbaugruppe nach Anspruch 7 oder Anspruch 8, dadurch gekennzeichnet, dass der Bypasskanal (24) luftspaltisoliert ist.Exhaust gas recirculation assembly according to claim 7 or claim 8, characterized in that the bypass channel (24) is air gap isolated. Abgasrückführungsbaugruppe nach Anspruch 8 oder Anspruch 9, dadurch gekennzeichnet, dass das Ventil (22, 26) ein Regelventil ist.Exhaust gas recirculation assembly according to claim 8 or claim 9, characterized in that the valve (22, 26) is a control valve.
EP16159192.0A 2015-04-16 2016-03-08 Exhaust gas recirculation assembly with exhaust manifold Active EP3085943B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3722587A1 (en) * 2019-04-12 2020-10-14 Borgwarner Emissions Systems Spain, S.L.U. Exhaust gas management system
EP4253749A1 (en) * 2022-03-31 2023-10-04 Suzuki Motor Corporation Egr device for internal combustion engine
EP4119786A4 (en) * 2020-03-13 2024-04-17 Yanmar Power Technology Co., Ltd. Engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020133977A1 (en) 2020-12-17 2022-06-23 Volkswagen Aktiengesellschaft exhaust gas recirculation assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1233170A2 (en) * 2001-02-20 2002-08-21 Nissan Motor Co., Ltd. Recirculated exhaust gas cooling device for internal combustion engine
JP2003074418A (en) * 2001-08-31 2003-03-12 Honda Motor Co Ltd Egr valve mounting structure
DE102005050234A1 (en) * 2005-10-20 2007-04-26 Daimlerchrysler Ag Internal combustion engine comprises an exhaust gas return line section partially provided with a thermal insulating arrangement on its inner peripheral side in the region of the coolant chamber
EP2077388A2 (en) * 2008-01-07 2009-07-08 Ford Global Technologies, LLC Combination with cylinder head and cylinder block and usage of such a combination
EP2077387A1 (en) * 2008-01-07 2009-07-08 Ford Global Technologies, LLC Method for cooling a recirculated exhaust gas flow of an internal combustion engine
US20110315129A1 (en) * 2010-06-25 2011-12-29 Mazda Motor Corporation Exhaust gas recirculation device of engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1320352B1 (en) * 2000-05-12 2003-11-26 Iveco Fiat ENDOTHERMAL ENGINE PROVIDED WITH A DISCHARGE GAS RECIRCULATION SYSTEM, IN PARTICULAR FOR A VEHICLE.
WO2007045406A1 (en) * 2005-10-20 2007-04-26 Behr Gmbh & Co. Kg Heat exchanger
JP5283898B2 (en) * 2007-12-26 2013-09-04 ヤマハ発動機株式会社 Exhaust gas recirculation device and vehicle
FR2986745A1 (en) * 2012-02-15 2013-08-16 Peugeot Citroen Automobiles Sa ENGINE SUPPORT INCORPORATING AN EXHAUST GAS RECIRCULATION DUCT, ADAPTED CYLINDER HEAD AND CORRESPONDING VEHICLE

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1233170A2 (en) * 2001-02-20 2002-08-21 Nissan Motor Co., Ltd. Recirculated exhaust gas cooling device for internal combustion engine
JP2003074418A (en) * 2001-08-31 2003-03-12 Honda Motor Co Ltd Egr valve mounting structure
DE102005050234A1 (en) * 2005-10-20 2007-04-26 Daimlerchrysler Ag Internal combustion engine comprises an exhaust gas return line section partially provided with a thermal insulating arrangement on its inner peripheral side in the region of the coolant chamber
EP2077388A2 (en) * 2008-01-07 2009-07-08 Ford Global Technologies, LLC Combination with cylinder head and cylinder block and usage of such a combination
EP2077387A1 (en) * 2008-01-07 2009-07-08 Ford Global Technologies, LLC Method for cooling a recirculated exhaust gas flow of an internal combustion engine
US20110315129A1 (en) * 2010-06-25 2011-12-29 Mazda Motor Corporation Exhaust gas recirculation device of engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3722587A1 (en) * 2019-04-12 2020-10-14 Borgwarner Emissions Systems Spain, S.L.U. Exhaust gas management system
EP4119786A4 (en) * 2020-03-13 2024-04-17 Yanmar Power Technology Co., Ltd. Engine
EP4253749A1 (en) * 2022-03-31 2023-10-04 Suzuki Motor Corporation Egr device for internal combustion engine

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