EP1215389A2 - Exhaust intake device for an air intake system of an internal combustion engine - Google Patents

Exhaust intake device for an air intake system of an internal combustion engine Download PDF

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Publication number
EP1215389A2
EP1215389A2 EP01120372A EP01120372A EP1215389A2 EP 1215389 A2 EP1215389 A2 EP 1215389A2 EP 01120372 A EP01120372 A EP 01120372A EP 01120372 A EP01120372 A EP 01120372A EP 1215389 A2 EP1215389 A2 EP 1215389A2
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EP
European Patent Office
Prior art keywords
exhaust gas
housing part
air intake
inlet
introduction device
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
EP01120372A
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German (de)
French (fr)
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EP1215389A3 (en
EP1215389B1 (en
Inventor
Norbert Simons
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Pierburg GmbH
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Pierburg GmbH
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Filing date
Publication date
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Publication of EP1215389A3 publication Critical patent/EP1215389A3/en
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Publication of EP1215389B1 publication Critical patent/EP1215389B1/en
Anticipated expiration legal-status Critical
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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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10118—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements with variable cross-sections of intake ducts along their length; Venturis; Diffusers
    • 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
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
    • 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
    • F02M26/31—Air-cooled heat exchangers
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10347—Moulding, casting or the like
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • 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
    • F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems

Definitions

  • the invention relates to an exhaust gas introduction device for an air intake duct system an internal combustion engine with an air intake duct housing, with a collective inlet, wherein the air intake duct housing consists essentially of an upper housing part and a lower housing part and the collective inlet with a Fresh air inlet channel cooperates, in which a throttle valve is arranged is and with an exhaust gas inlet arranged in the air intake system, which with an exhaust gas recirculation valve and an influencing the exhaust gas inlet jet Flow guide cooperates.
  • the flow guide ensures that the thermal Load for the exhaust gas recirculation valve is not too great and that the direct Impact of the hot exhaust gas from the exhaust duct on the fresh air in the Fresh air inlet duct no disadvantageous deposits of dirt particles, such as B. soot on the channel walls. Furthermore, the Flow guide body with a uniform mixing of the hot exhaust gas serve the fresh air.
  • the flow guide was used as an independent additional component, for example as a sheet metal part, inserted into the fresh air inlet duct, which causes a high assembly effort.
  • the invention is therefore based on the object above to avoid the disadvantage mentioned.
  • the upper housing part and / or the lower housing part have shaped elements which are in the assembled state of the air intake duct housing form the flow guide.
  • an exhaust gas introduction device for an air intake duct system created, which is particularly easy to assemble and thus characterized by low costs.
  • the flow guide body in the axial direction of the fresh air inlet duct extending annular shoulder defining an annular channel and through openings for the exhaust gas are provided in the annular shoulder are.
  • This configuration ensures particularly uniform mixing of hot exhaust gas and cool fresh air instead.
  • the air intake duct housing one of the housing parts has the exhaust gas inlet circumferential flange element and the annular shoulder, the annular channel in the axial direction by one adjoining the flange element Fresh air duct section is limited.
  • the upper housing part and the lower housing part can advantageously be produced by die casting.
  • FIG. 1 shows a schematic view of an exhaust gas introduction device 1 for an air intake duct system 2 an internal combustion engine, not shown.
  • the air intake duct system 2 essentially has an air intake duct housing 3 with a Collective inlet duct 4 (see FIG. 2, 3 or 4), the air intake duct housing essentially of an upper housing part 5 and a lower housing part 6 exists.
  • the collective inlet duct 4 is connected to a fresh air inlet duct 7, which in the present exemplary embodiment consists of a fresh air duct section 8 with a throttle valve 9 and a fresh air duct section 10, the Air intake duct housing 3 is formed.
  • the exhaust gas introduction device 1 consists essentially of an exhaust gas inlet arranged on the air inlet duct system 11 and an exhaust gas recirculation valve 12 which is connected to the exhaust gas inlet jet influencing flow guide body 13 (see FIG. 2, 3 or 4) cooperates.
  • Figure 2 shows a perspective sectional view of a first embodiment of the Exhaust gas introduction device according to the invention without exhaust gas recirculation valve.
  • the flow guide In this case, 13 is in the axial direction of the fresh air duct section 10 extending annular shoulder 13, which defines an annular channel 14, wherein in the annular paragraph 13 through openings 15 for introduction of the exhaust gas are provided.
  • the upper housing part 5 the exhaust gas inlet 11.
  • the upper part 5 of the annular shoulder 13 and a circumferential flange element 16 for connection integrally formed with the first fresh air inlet duct section 8.
  • FIG. 3 shows this exemplary embodiment of the exhaust gas introduction device in section, the fresh air duct section 8, which delimits the annular duct 14 in the axial direction, is shown.
  • the left arrow in Figure 3 shows the incoming fresh air and the upper arrow the inflowing exhaust gas.
  • Figure 4 now shows a second embodiment of the exhaust gas introduction device according to the invention on average.
  • the upper housing part has the exhaust gas inlet 11 and the circumferential one Flange element 16, which in the present case at the same time the annular channel 14th limited by the arranged in this case on the lower housing part 5 annular paragraph 13 is defined.
  • the exemplary embodiments mentioned are particularly simple to manufacture in the die casting process.
  • the mentioned formations are not based on the described embodiments must remain limited, it is also conceivable that in Figure 4 to produce the upper housing part shown with the annular shoulder, wherein then the exhaust gas inlet with the circumferential flange element on the lower housing part are trained.

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

Abstract

Exhaust gas discharge device for an air intake channel system of an internal combustion engine having an air intake channel housing with a collecting inlet (4), an upper housing part (5), and a lower housing part (6) comprises an exhaust gas inlet (11) arranged in the air intake channel system which interacts with an exhaust gas return valve and a flow-guiding body (13) influencing the exhaust gas stream. The upper and/or lower housing part has form elements which form the flow-guiding body in the mounted state of the air intake channel housing. Preferred Features: The flow-guiding body is an annular step extending in the axial direction of the fresh air inlet channel and defining a ring channel (14). Openings (15) for the exhaust gas are provided in the annular step.

Description

Die Erfindung betrifft eine Abgaseinleitvorrichtung für ein Luftansaugkanalsystem einer Brennkraftmaschine mit einem Luftansaugkanalgehäuse, mit einem Sammeleinlaß, wobei das Luftansaugkanalgehäuse im wesentlichen aus einem Gehäuseoberteil und einem Gehäuseunterteil besteht und der Sammeleinlaß mit einem Frischlufteinlaßkanal zusammenwirkt, in dem eine Drosselklappe angeordnet ist und mit einem im Luftansaugkanalsystem angeordneten Abgaseinlaß, der mit einem Abgasrückführventil und einem den Abgaseinleitstrahl beeinflussenden Strömungsleitkörper zusammenwirkt.The invention relates to an exhaust gas introduction device for an air intake duct system an internal combustion engine with an air intake duct housing, with a collective inlet, wherein the air intake duct housing consists essentially of an upper housing part and a lower housing part and the collective inlet with a Fresh air inlet channel cooperates, in which a throttle valve is arranged is and with an exhaust gas inlet arranged in the air intake system, which with an exhaust gas recirculation valve and an influencing the exhaust gas inlet jet Flow guide cooperates.

Derartige Abgaseinleitvorrichtungen für Luftansaugkanalsysteme sind hinlänglich bekannt. Durch den Strömungsleitkörper wird gewährleistet, daß die thermische Belastung für das Abgasrückführventil nicht zu groß ist und daß sich durch das direkte Auftreffen des heißen Abgases aus dem Abgaskanal auf die Frischluft im Frischlufteinlaßkanal keine nachteiligen Ablagerungen von Verschmutzungspartikeln, wie z. B. Ruß an den Kanalwänden, ergeben können. Desweiteren soll der Strömungsleitkörper einer gleichmäßigen Vermischung des heißen Abgases mit der Frischluft dienen. Der Strömungsleitkörper wurde dabei als unabhängiges Zusatzbauteil, beispielsweise als Blechteil, in den Frischlufteinlaßkanal eingesetzt, was einen hohen montagetechnischen Aufwand verursacht.Such exhaust gas introduction devices for air intake duct systems are sufficient known. The flow guide ensures that the thermal Load for the exhaust gas recirculation valve is not too great and that the direct Impact of the hot exhaust gas from the exhaust duct on the fresh air in the Fresh air inlet duct no disadvantageous deposits of dirt particles, such as B. soot on the channel walls. Furthermore, the Flow guide body with a uniform mixing of the hot exhaust gas serve the fresh air. The flow guide was used as an independent additional component, for example as a sheet metal part, inserted into the fresh air inlet duct, which causes a high assembly effort.

Hiervon ausgehend liegt der Erfindung daher die Aufgabe zugrunde, den oben genannten Nachteil zu vermeiden. Proceeding from this, the invention is therefore based on the object above to avoid the disadvantage mentioned.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Gehäuseoberteil und/oder das Gehäuseunterteil Formelemente aufweisen, die im montierten Zustand des Luftansaugkanalgehäuses den Strömungsleitkörper bilden.This object is achieved in that the upper housing part and / or the lower housing part have shaped elements which are in the assembled state of the air intake duct housing form the flow guide.

Auf diese Weise wird eine Abgaseinleitvorrichtung für ein Luftansaugkanalsystem geschaffen, die sich durch besonders einfachen montagetechnischen Aufwand und damit durch geringe Kosten auszeichnet. In besonders vorteilhafter Ausführungsform ist der Strömungsleitkörper ein sich in Achsrichtung des Frischlufteinlaßkanales erstreckender ringförmiger Absatz, der einen Ringkanal definiert und dabei in dem ringförmigen Absatz Durchtrittsöffnungen für das Abgas vorgesehen sind. Durch diese Ausgestaltung findet eine besonders gleichmäßige Vermischung von heißem Abgas und kühler Frischluft statt. Bei einer ersten Ausführungsform des Luftansaugkanalgehäuses weist eines der Gehäuseteile den Abgaseinlaß, ein umlaufendes Flanschelement und den ringförmigen Absatz auf, wobei der Ringkanal in axialer Richtung durch einen sich an das Flanschelement anschließenden Frischuftkanalabschnitt begrenzt ist. Bei einer zweiten Ausführungsform weist eines der Gehäuseteile den Abgaseinlaß und ein umlaufendes, den Ringkanal begrenzendes Flanschelement auf und das andere Gehäuseteil besitzt den ringförmigen Absatz.In this way, an exhaust gas introduction device for an air intake duct system created, which is particularly easy to assemble and thus characterized by low costs. In a particularly advantageous embodiment is the flow guide body in the axial direction of the fresh air inlet duct extending annular shoulder defining an annular channel and through openings for the exhaust gas are provided in the annular shoulder are. This configuration ensures particularly uniform mixing of hot exhaust gas and cool fresh air instead. In a first embodiment of the air intake duct housing one of the housing parts has the exhaust gas inlet circumferential flange element and the annular shoulder, the annular channel in the axial direction by one adjoining the flange element Fresh air duct section is limited. In a second embodiment, one has the housing parts the exhaust gas inlet and a circumferential, the ring channel delimiting Flange element on and the other housing part has the annular Paragraph.

In allen Fällen kann das Gehäuseoberteil und das Gehäuseunterteil vorteilhafterweise im Druckgußverfahren hergestellt sein.In all cases, the upper housing part and the lower housing part can advantageously be produced by die casting.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden nachfolgend beschrieben:Embodiments of the invention are shown in the drawing and are described below:

Diese zeigt:

Figur 1
eine Abgaseinleitvorrichtung für ein Luftansaugkanalsystem einer Brennkraftmaschine,
Figur 2
eine perspektivische Schnittansicht einer ersten Ausführungsform der Abgaseinleitvorrichtung,
Figur 3
eine Schnittansicht der Abgaseinleitvorrichtung aus Figur 2, und
Figur 4
eine Schnittansicht einer zweiten Ausführungsform einer Abgaseinleitvorrichtung.
This shows:
Figure 1
an exhaust gas introduction device for an air intake duct system of an internal combustion engine,
Figure 2
2 shows a perspective sectional view of a first embodiment of the exhaust gas introduction device,
Figure 3
a sectional view of the exhaust gas introduction device of Figure 2, and
Figure 4
a sectional view of a second embodiment of an exhaust gas introduction device.

Figur 1 zeigt in schematischer Ansicht eine Abgaseinleitvorrichtung 1 für ein Luftansaugkanalsystem 2 einer nicht dargestellten Brennkraftmaschine. Das Luftansaugkanalsystem 2 besitzt im wesentlichen ein Luftansaugkanalgehäuse 3 mit einem Sammeleinlaßkanal 4 (s. Figur 2, 3 oder 4), wobei das Luftansaugkanalgehäuse im wesentlichen aus einem Gehäuseoberteil 5 und einem Gehäuseunterteil 6 besteht. Der Sammeleinlaßkanal 4 steht in Verbindung mit einem Frischlufteinlaßkanal 7, der im vorliegenden Ausführungsbeispiel aus einem Frischluftkanalabschnitt 8 mit einer Drosselklappe 9 und einem Frischluftkanalabschnitt 10, der am Luftansaugkanalgehäuse 3 angeformt ist, besteht. Die Abgaseinleitvorrichtung 1 besteht im wesentlichen aus einem am Lufteinlaßkanalsystem angeordneten Abgaseinlaß 11 sowie einem Abgasrückführventil 12, das mit einem dem Abgaseinleitstrahl beeinflußenden Strömungsleitkörper 13 (s. Figur 2, 3 oder 4) zusammenwirkt.FIG. 1 shows a schematic view of an exhaust gas introduction device 1 for an air intake duct system 2 an internal combustion engine, not shown. The air intake duct system 2 essentially has an air intake duct housing 3 with a Collective inlet duct 4 (see FIG. 2, 3 or 4), the air intake duct housing essentially of an upper housing part 5 and a lower housing part 6 exists. The collective inlet duct 4 is connected to a fresh air inlet duct 7, which in the present exemplary embodiment consists of a fresh air duct section 8 with a throttle valve 9 and a fresh air duct section 10, the Air intake duct housing 3 is formed. The exhaust gas introduction device 1 consists essentially of an exhaust gas inlet arranged on the air inlet duct system 11 and an exhaust gas recirculation valve 12 which is connected to the exhaust gas inlet jet influencing flow guide body 13 (see FIG. 2, 3 or 4) cooperates.

Figur 2 zeigt eine perspektivische Schnittansicht einer ersten Ausführungsform der erfindungsgemäßen Abgaseinleitvorrichtung ohne Abgasrückführventil. Der Strömungsleitkörper 13 ist in diesem Fall ein sich in Achsrichtung des Frischluftkanalabschnittes 10 erstreckender ringförmiger Absatz 13, der einen Ringkanal 14 definiert, wobei in dem ringförmigen Absatz 13 Durchtrittsöffnungen 15 zur Einleitung des Abgases vorgesehen sind. In diesem Ausführungsbeispiel weist das Gehäuseoberteil 5 den Abgaseinlaß 11 auf. Darüber hinaus ist am Gehäuseoberteil 5 der ringförmige Absatz 13 sowie ein umlaufendes Flanschelement 16 zur Verbindung mit dem ersten Frischlufteinlaßkanalabschnitt 8 angeformt.Figure 2 shows a perspective sectional view of a first embodiment of the Exhaust gas introduction device according to the invention without exhaust gas recirculation valve. The flow guide In this case, 13 is in the axial direction of the fresh air duct section 10 extending annular shoulder 13, which defines an annular channel 14, wherein in the annular paragraph 13 through openings 15 for introduction of the exhaust gas are provided. In this embodiment, the upper housing part 5 the exhaust gas inlet 11. In addition, the upper part 5 of the annular shoulder 13 and a circumferential flange element 16 for connection integrally formed with the first fresh air inlet duct section 8.

Figur 3 zeigt dieses Ausführungsbeispiel der Abgaseinleitvorrichtung im Schnitt, wobei der Frischluftkanalabschnitt 8, der den Ringkanal 14 in axialer Richtung begrenzt, dargestellt ist. Der linke Pfeil in Figur 3 zeigt die einströmende Frischluft und der obere Pfeil das einströmende Abgas.FIG. 3 shows this exemplary embodiment of the exhaust gas introduction device in section, the fresh air duct section 8, which delimits the annular duct 14 in the axial direction, is shown. The left arrow in Figure 3 shows the incoming fresh air and the upper arrow the inflowing exhaust gas.

Figur 4 zeigt nun ein zweites Ausführungsbeispiel der erfindungsgemäßen Abgaseinleitvorrichtung im Schnitt. Die Wirkung dieser Abgaseinleitvorrichtung bleibt gleich, jedoch ist der konstruktive Aufbau andersartig. Beim zweiten Ausführungsbeispiel weist das Gehäuseoberteil den Abgaseinlaß 11 und das umlaufende Flanschelement 16 auf, was im vorliegenden Fall gleichzeitig den Ringkanal 14 begrenzt, der durch den in diesem Falle am Gehäuseunterteil 5 angeordneten ringförmigen Absatz 13 definiert ist. Besonders einfach sind die genannten Ausführungsbeispiele im Druckgußverfahren herzustellen. Darüber hinaus bleibt anzumerken, daß die genannten Anformungen nicht auf die beschriebenen Ausführungsbeispiele beschränkt bleiben müssen, so ist es auch denkbar, daß das in Figur 4 gezeigte Gehäuseoberteil mit dem ringförmigen Absatz herzustellen, wobei dann der Abgaseinlaß mit dem umlaufenden Flanschelement am Gehäuseunterteil ausgebildet sind.Figure 4 now shows a second embodiment of the exhaust gas introduction device according to the invention on average. The effect of this exhaust gas introduction device remains the same, but the construction is different. In the second embodiment the upper housing part has the exhaust gas inlet 11 and the circumferential one Flange element 16, which in the present case at the same time the annular channel 14th limited by the arranged in this case on the lower housing part 5 annular paragraph 13 is defined. The exemplary embodiments mentioned are particularly simple to manufacture in the die casting process. In addition, it should be noted that the mentioned formations are not based on the described embodiments must remain limited, it is also conceivable that in Figure 4 to produce the upper housing part shown with the annular shoulder, wherein then the exhaust gas inlet with the circumferential flange element on the lower housing part are trained.

Claims (5)

Abgaseinleitvorrichtung für ein Luftansaugkanalsystem einer Brennkraftmaschine mit einem Luftansaugkanalgehäuse mit einem Sammeleinlaß, wobei das Luftansaugkanalgehäuse im wesentlichen aus einem Gehäuseoberteil und einem Gehäuseunterteil besteht und der Sammeleinlaß mit einem Frischlufteinlaßkanal zusammenwirkt, in dem eine Drosselklappe angeordnet ist und mit einem im Lufteinlaßkanalsystem angeordenten Abgaseinlaß, der mit einem Abgasrückführventil und einem den Abgaseinleitstrahl beeinflussenden Strömungsleitkörper zusammenwirkt, dadurch gekennzeichnet, daß das Gehäuseoberteil (5) und/oder das Gehäuseunterteil (6) Formelemente aufweisen, die im montierten Zustand des Luftansaugkanalgehäuses (3) den Strömungsleitkörper (13) bilden.Exhaust gas introduction device for an air intake duct system of an internal combustion engine with an air intake duct housing with a collective inlet, the air intake duct housing essentially consisting of an upper housing part and a lower housing part and the collective inlet cooperating with a fresh air inlet duct, in which a throttle valve is arranged and with an exhaust gas inlet arranged in the air inlet duct system, with an exhaust gas inlet Exhaust gas recirculation valve and a flow guide body influencing the exhaust gas inlet jet cooperate, characterized in that the upper housing part (5) and / or the lower housing part (6) have shaped elements which form the flow guide body (13) when the air intake duct housing (3) is assembled. Abgaseinleitvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Strömungsleitkörper (13) ein sich in Achsrichtung des Frischlufteinlaßkanals (7) erstreckender ringförmiger Absatz ist, der einen Ringkanal (14) definiert und wobei in dem ringförmigen Absatz Durchtrittsöffnungen (15) für das Abgas vorgesehen sind.Exhaust gas introduction device according to claim 1, characterized in that the flow guide body (13) is an annular shoulder which extends in the axial direction of the fresh air inlet channel (7) and which defines an annular channel (14) and wherein through openings (15) for the exhaust gas are provided in the annular shoulder , Abgaseinleitvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß eines der Gehäuseteile (5; 6) den Abgaseinlaß (14), ein umlaufendes Flanschelement (16) und den ringförmigen Absatz (13) aufweist, wobei der Ringkanal (14) in axialer Richtung durch einen sich an das Flanschelement (16) anschließenden Frischluftkanalabschnitt (8) begrenzt ist. Exhaust gas introduction device according to Claim 2, characterized in that one of the housing parts (5; 6) has the exhaust gas inlet (14), a circumferential flange element (16) and the annular shoulder (13), the annular channel (14) passing through itself in the axial direction to the flange element (16) adjoining fresh air duct section (8) is limited. Abgasenleitvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß eines der Gehäuseteile (5; 6) den Abgaseinlaß (11) und ein umlaufendes, den Ringkanal begrenzendes Flanschelement (16) aufweist und das andere Gehäuseteil (5; 6) den ringförmigen Absatz besitzt.Exhaust gas guiding device according to claim 2, characterized in that one of the housing parts (5; 6) has the exhaust gas inlet (11) and a circumferential flange element (16) delimiting the ring channel and the other housing part (5; 6) has the annular shoulder. Abgaseinleitvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Gehäuseoberteil (5) und das Gehäuseunterteil (6) im Druckgußverfahren hergestellt sind.Exhaust gas introduction device according to one of the preceding claims, characterized in that the upper housing part (5) and the lower housing part (6) are produced by the die-casting process.
EP01120372A 2000-12-15 2001-08-25 Exhaust intake device for an air intake system of an internal combustion engine Expired - Lifetime EP1215389B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10062677A DE10062677A1 (en) 2000-12-15 2000-12-15 Exhaust gas introduction device for an air intake duct system of an internal combustion engine
DE10062677 2000-12-15

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EP1215389A2 true EP1215389A2 (en) 2002-06-19
EP1215389A3 EP1215389A3 (en) 2003-11-12
EP1215389B1 EP1215389B1 (en) 2006-04-26

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ES (1) ES2262587T3 (en)

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DE50109616D1 (en) 2006-06-01
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EP1215389B1 (en) 2006-04-26
ES2262587T3 (en) 2006-12-01

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