EP1215389B1 - 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
EP1215389B1
EP1215389B1 EP01120372A EP01120372A EP1215389B1 EP 1215389 B1 EP1215389 B1 EP 1215389B1 EP 01120372 A EP01120372 A EP 01120372A EP 01120372 A EP01120372 A EP 01120372A EP 1215389 B1 EP1215389 B1 EP 1215389B1
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EP
European Patent Office
Prior art keywords
exhaust gas
housing
air intake
channel
inlet
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.)
Expired - Lifetime
Application number
EP01120372A
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German (de)
French (fr)
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EP1215389A3 (en
EP1215389A2 (en
Inventor
Norbert Simons
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Pierburg GmbH
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Pierburg GmbH
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Publication of EP1215389A3 publication Critical patent/EP1215389A3/en
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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 inlet device for a Lucasansaugkanalsystem an internal combustion engine with a Lucasansaugkanalgeophuse, with a collecting inlet, wherein the Heilansaugkanalgeophuse consists essentially of a housing upper part and a lower housing part and the collecting inlet cooperates with a fresh air inlet passage in which a throttle valve is arranged and arranged in the Beeransaugkanalsystem Exhaust inlet, which cooperates with an exhaust gas recirculation valve and a Abgaseinleitstrahl influencing Strömungsleit emotions, wherein the upper housing part and / or the lower housing part having form elements which form the flow guide in the assembled state of the Lucasansaugkanalgeophuses.
  • Exhaust inlet devices for air intake duct systems are well known.
  • Strömungsleit stresses ensures that the thermal load on the exhaust gas recirculation valve is not too large and that no adverse deposits of dirt particles, such as.
  • the flow guide should serve a uniform mixing of the hot exhaust gas with the fresh air.
  • the flow guide can, as described in the unpublished DE-A-100 32 149, as an independent additional component, for example, as a sheet metal part, are used in the fresh air inlet channel, which causes a high mounting effort.
  • the invention is therefore an object of the invention to avoid the above drawback.
  • the flow guide is an extending in the axial direction of the fresh air inlet channel annular shoulder, which defines an annular channel and wherein openings are provided in the ringfrömigen paragraph for the exhaust gas.
  • one of the housing parts has the exhaust gas inlet, a circumferential flange element and the annular shoulder, wherein the annular channel is delimited in the axial direction by a fresh air duct section adjoining the flange element.
  • one of the housing parts has the exhaust gas inlet and a circumferential flange element delimiting the annular channel, and the other housing part has the annular shoulder.
  • the upper housing part and the lower housing part can be advantageously produced by die casting.
  • the air intake duct system 2 essentially has an air intake duct housing 3 with a collecting intake duct 4 (see Figures 2, 3 or 4), wherein the air intake duct housing consists essentially of an upper housing part 5 and a lower housing part 6.
  • the collection inlet channel 4 is in communication with a fresh air inlet channel 7, which consists in the present embodiment of a fresh air duct section 8 with a throttle valve 9 and a fresh air duct section 10 which is integrally formed on the Lucasansaugkanalgephinuse 3.
  • the exhaust gas inlet device 1 consists essentially of an exhaust gas inlet 11 arranged on the air intake duct system and an exhaust gas recirculation valve 12 which cooperates with a flow guide body 13 influencing the exhaust gas inlet jet (see FIGS. 2, 3 or 4).
  • FIG 2 shows a perspective sectional view of a first embodiment of the Abgaseinleitvor Vietnamese invention without exhaust gas recirculation valve.
  • the flow guide 13 is in this case an extending in the axial direction of the fresh air passage portion 10 annular shoulder 13 which defines an annular channel 14, wherein in the annular shoulder 13 passage openings 15 are provided for introducing the exhaust gas.
  • a circumferential flange member 16 is integrally formed for connection to the first fresh air inlet passage section 8.
  • FIG. 3 shows this embodiment of the exhaust gas introduction device in section, wherein 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 incoming exhaust gas.
  • FIG. 4 shows a second embodiment of the Abgaseinleitvortechnische invention in section.
  • the effect of this Abgaseinleitvortechnisch remains the same, but the structural design is different.
  • the upper housing part of the exhaust gas inlet 11 and the circumferential flange member 16 which in the present case simultaneously limits the annular channel 14 which is defined by the arranged in this case on the lower housing part 6 annular shoulder 13.
  • the aforementioned embodiments are particularly easy to produce by die casting.
  • the said formations need not be limited to the described embodiments, it is also conceivable that the housing upper part shown in Figure 4 produce with the annular shoulder, in which case the exhaust inlet are formed with the peripheral flange on the housing base.

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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)

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, wobei das Gehäuseoberteil und/oder das Gehäuseunterteil Formelemente aufweisen, die im montierten Zustand des Luftansaugkanalgehäuses den Strömungsleitkörper bilden.The invention relates to an exhaust gas inlet device for a Luftansaugkanalsystem an internal combustion engine with a Luftansaugkanalgehäuse, with a collecting inlet, wherein the Luftansaugkanalgehäuse consists essentially of a housing upper part and a lower housing part and the collecting inlet cooperates with a fresh air inlet passage in which a throttle valve is arranged and arranged in the Luftansaugkanalsystem Exhaust inlet, which cooperates with an exhaust gas recirculation valve and a Abgaseinleitstrahl influencing Strömungsleitkörper, wherein the upper housing part and / or the lower housing part having form elements which form the flow guide in the assembled state of the Luftansaugkanalgehäuses.

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 kann dabei, wie in der nicht vorveröffentlichten DE-A- 100 32 149 beschrieben, als unabhängiges Zusatzbauteil, beispielsweise als Blechteil, in den Frischlufteinlaßkanal eingesetzt werden, was einen hohen montagetechnischen Aufwand verursacht.
Aus der US-A- 4 715 329 ist eine Abgaseinleitvorrichtung bekannt, wobei Formelemente am Gehäuseoberteil und -unterteil vorgesehen sind, die im montierten Zustand Strömungsleitkörper bilden. Diese Strömungsleitkörper bewirken jedoch lediglich eine unzureichende, ungleichmäßige Vermischung mit der Frischluft.
Als weiterer Stand der Technik sei die JP 11 247 727 genannt.Exhaust inlet devices for air intake duct systems are well known. By Strömungsleitkörpers ensures that the thermal load on the exhaust gas recirculation valve is not too large and that no adverse deposits of dirt particles, such as. By the direct impact of the hot exhaust gas from the exhaust duct to the fresh air in the fresh air inlet duct. As soot on the channel walls, can result. Furthermore, the flow guide should serve a uniform mixing of the hot exhaust gas with the fresh air. The flow guide can, as described in the unpublished DE-A-100 32 149, as an independent additional component, for example, as a sheet metal part, are used in the fresh air inlet channel, which causes a high mounting effort.
From US-A-4 715 329 a Abgaseinleitvorrichtung is known, wherein mold elements are provided on the upper housing part and lower part, which form in the assembled state flow guide. However, these flow guide cause only insufficient, non-uniform mixing with the fresh air.
Another prior art is JP 11 247 727 called.

Hiervon ausgehend liegt der Erfindung daher die Aufgabe zugrunde, den oben genannten Nachteil zu vermeiden.On this basis, the invention is therefore an object of the invention to avoid the above drawback.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Strömungsleitkörper ein sich in Achsrichtung des Frischlufteinlaßkanales erstreckender ringförmiger Absatz ist, der einen Ringkanal definiert und wobei in dem ringfrömigen Absatz Durchtrittsöffnungen für das Abgas vorgesehen sind.This object is achieved in that the flow guide is an extending in the axial direction of the fresh air inlet channel annular shoulder, which defines an annular channel and wherein openings are provided in the ringfrömigen paragraph for the exhaust gas.

Auf diese Weise wird eine Abgaseinleitvorrichtung für ein Luftansaugkanalsystem geschaffen, die sich durch besonders einfachen montagetechnischen Aufwand und damit durch geringe Kosten auszeichnet. Durch eine derartige 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 inlet device for a Luftansaugkanalsystem is created, which is characterized by particularly simple assembly-technical effort and thus by low cost. By such a configuration, a particularly uniform mixing of hot exhaust gas and cool fresh air takes place. In a first embodiment of the air intake duct housing, one of the housing parts has the exhaust gas inlet, a circumferential flange element and the annular shoulder, wherein the annular channel is delimited in the axial direction by a fresh air duct section adjoining the flange element. In a second embodiment, one of the housing parts has the exhaust gas inlet and a circumferential flange element delimiting the annular channel, and the other housing part has the annular shoulder.

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 be advantageously produced by die casting.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden nachfolgend beschrieben:Embodiments of the invention are illustrated in the drawings 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:
FIG. 1
an exhaust gas introduction device for an air intake duct system of an internal combustion engine,
FIG. 2
a perspective sectional view of a first embodiment of the exhaust gas introduction device,
FIG. 3
a sectional view of the exhaust gas inlet device of Figure 2, and
FIG. 4
a sectional view of a second embodiment of a Abgaseinleitvorrichtung.

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.1 shows a schematic view of an exhaust gas inlet device 1 for an air intake duct system 2 of an internal combustion engine, not shown. The air intake duct system 2 essentially has an air intake duct housing 3 with a collecting intake duct 4 (see Figures 2, 3 or 4), wherein the air intake duct housing consists essentially of an upper housing part 5 and a lower housing part 6. The collection inlet channel 4 is in communication with a fresh air inlet channel 7, which consists in the present embodiment of a fresh air duct section 8 with a throttle valve 9 and a fresh air duct section 10 which is integrally formed on the Luftansaugkanalgehäuse 3. The exhaust gas inlet device 1 consists essentially of an exhaust gas inlet 11 arranged on the air intake duct system and an exhaust gas recirculation valve 12 which cooperates with a flow guide body 13 influencing the exhaust gas inlet jet (see FIGS. 2, 3 or 4).

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 Abgaseinleitvorrichtung invention without exhaust gas recirculation valve. The flow guide 13 is in this case an extending in the axial direction of the fresh air passage portion 10 annular shoulder 13 which defines an annular channel 14, wherein in the annular shoulder 13 passage openings 15 are provided for introducing the exhaust gas. In this embodiment, the upper housing part 5 on the exhaust gas inlet 11. In addition, on the upper housing part 5 of the annular shoulder 13 and a circumferential flange member 16 is integrally formed for connection to the first fresh air inlet passage 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 embodiment of the exhaust gas introduction device in section, wherein 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 incoming 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 6 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 shows a second embodiment of the Abgaseinleitvorrichtung invention in section. The effect of this Abgaseinleitvorrichtung remains the same, but the structural design is different. In the second embodiment, the upper housing part of the exhaust gas inlet 11 and the circumferential flange member 16, which in the present case simultaneously limits the annular channel 14 which is defined by the arranged in this case on the lower housing part 6 annular shoulder 13. The aforementioned embodiments are particularly easy to produce by die casting. In addition, it should be noted that the said formations need not be limited to the described embodiments, it is also conceivable that the housing upper part shown in Figure 4 produce with the annular shoulder, in which case the exhaust inlet are formed with the peripheral flange on the housing base.

Claims (4)

  1. Air intake channel system with an exhaust gas introduction apparatus of an internal combustion engine with an air intake channel housing (3) with a common inlet, wherein the air intake channel housing (3) substantially comprises a housing upper part (5) and a housing lower part (6) and the common inlet interacts with a fresh air inlet channel (7), in which a throttle valve (9) is disposed and with an exhaust gas inlet (11), which is disposed in the air inlet channel system and interacts with an exhaust gas recirculation valve (12) and a flow guide body (13) that influences the exhaust gas introduction stream, wherein
    the housing upper part (5) and/or the housing lower part (6) have shaped elements, which in the mounted state of the air intake channel housing (3) form the flow guide body (13),
    characterized in that the flow guide body (13) is an annular shoulder extending in axial direction of the fresh air inlet channel (7) and defining an annular channel (14) and wherein in the annular shoulder through-openings (15) are provided for the exhaust gas.
  2. Air intake channel system according to claim 1,
    characterized in that one of the housing parts (5; 6) has the exhaust gas inlet (11), a circumferential flange element (16) and the annular shoulder (13), wherein the annular channel (14) is delimited in axial direction by a fresh air channel portion (8) adjoining the flange element (16).
  3. Air intake channel system according to claim 1,
    characterized in that one of the housing parts (5; 6) has the exhaust gas inlet (11) and a circumferential flange element (16) delimiting the annular channel, and the other housing part (5; 6) has the annular shoulder.
  4. Method of manufacturing an air intake channel system according to one of the preceding claims, characterized in that the housing upper part (5) and the housing lower part (6) are manufactured by pressure die casting.
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
DE10062677 2000-12-15
DE10062677A DE10062677A1 (en) 2000-12-15 2000-12-15 Exhaust gas introduction device for an air intake duct system of an internal combustion engine

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

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ES (1) ES2262587T3 (en)

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Publication number Priority date Publication date Assignee Title
DE10228247B4 (en) * 2002-06-25 2014-05-15 Pierburg Gmbh The air intake channel
FR2896546B1 (en) * 2006-01-23 2012-12-21 Peugeot Citroen Automobiles Sa DEVICE FOR RECYCLING EXHAUST GAS FROM A MOTOR VEHICLE

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DE3517808A1 (en) * 1985-05-17 1986-11-20 Glotur Trust, Vaduz Method and device for the introduction of additional gas flows into the intake port of a mixture-compressing internal combustion engine

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DE9316647U1 (en) * 1993-10-30 1994-01-27 Pierburg Gmbh, 41460 Neuss Air intake pipe for internal combustion engines
DE4420247B4 (en) * 1994-06-10 2004-03-04 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Exhaust gas recirculation device for internal combustion engines, in particular with plastic suction pipes
JPH09317569A (en) * 1996-05-22 1997-12-09 Nippon Soken Inc Gas reflux device for engine
DE19726162C1 (en) * 1997-06-20 1999-01-28 Bosch Gmbh Robert Intake air distributor
JPH11247727A (en) * 1998-02-27 1999-09-14 Daihatsu Motor Co Ltd Device for introducing blowby gas or the like of internal combustion engine to intake system

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Publication number Priority date Publication date Assignee Title
DE3517808A1 (en) * 1985-05-17 1986-11-20 Glotur Trust, Vaduz Method and device for the introduction of additional gas flows into the intake port of a mixture-compressing internal combustion engine

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DE50109616D1 (en) 2006-06-01
DE10062677A1 (en) 2002-06-20
ES2262587T3 (en) 2006-12-01
EP1215389A3 (en) 2003-11-12
EP1215389A2 (en) 2002-06-19

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