Nothing Special   »   [go: up one dir, main page]

DE4231218C2 - Exhaust gas recirculation - Google Patents

Exhaust gas recirculation

Info

Publication number
DE4231218C2
DE4231218C2 DE4231218A DE4231218A DE4231218C2 DE 4231218 C2 DE4231218 C2 DE 4231218C2 DE 4231218 A DE4231218 A DE 4231218A DE 4231218 A DE4231218 A DE 4231218A DE 4231218 C2 DE4231218 C2 DE 4231218C2
Authority
DE
Germany
Prior art keywords
exhaust gas
line
exhaust
gas recirculation
compressor part
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
DE4231218A
Other languages
German (de)
Other versions
DE4231218C1 (en
Inventor
Wilhelm Dipl Ing Loesing
Klaus Dipl Ing Marquardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler Benz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE4231218A priority Critical patent/DE4231218C2/en
Application granted granted Critical
Publication of DE4231218C1 publication Critical patent/DE4231218C1/en
Publication of DE4231218C2 publication Critical patent/DE4231218C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/005—Exhaust driven pumps being combined with an exhaust driven auxiliary apparatus, e.g. a ventilator
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/07—Mixed pressure loops, i.e. wherein recirculated exhaust gas is either taken out upstream of the turbine and reintroduced upstream of the compressor, or is taken out downstream of the turbine and reintroduced downstream of the compressor
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/08—EGR systems specially adapted for supercharged engines for engines having two or more intake charge compressors or exhaust gas turbines, e.g. a turbocharger combined with an additional compressor
    • 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
    • F02M26/34—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with compressors, turbines or the like in the recirculation passage
    • 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
    • F02M26/21—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 with EGR valves located at or near the connection 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/71—Multi-way valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

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

Description

Die Erfindung betrifft eine Abgasrückführung gemäß dem Oberbe­ griff der beiden unabhängigen Patentansprüche 1 und 2.The invention relates to exhaust gas recirculation according to the Oberbe handle of the two independent claims 1 and 2.

Aus der DE 35 26 532 A1 ist bereits eine gattungsgemäße Abgas­ rückführung für aufgeladene Brennkraftmaschinen bekannt, deren Bypaßleitung zur Rückführung von Abgasen zwischen dem Abgassy­ stem stromauf des Laders und dem Ansaugsystem im Bereich zwi­ schen Lader und Brennkraftmaschine angeordnet ist. Eine derar­ tige Abgasrückführung ist nur unter der Voraussetzung funkti­ onsfähig, daß der durch den Lader bewirkte Abgasgegendruck hö­ her ist als der Ladedruck im Ansaugsystem, wobei diese Bedin­ gung jedoch dem Bestreben, einen möglichst hohen Ladedruck bei geringer Staudruckerhöhung im Abgassystem zu erreichen, entge­ gensteht.DE 35 26 532 A1 is already a generic exhaust gas feedback for supercharged internal combustion engines known Bypass line for the return of exhaust gases between the exhaust gas stem upstream of the loader and the intake system in the area between The loader and internal combustion engine is arranged. A derar exhaust gas recirculation is only functional if the precondition is capable that the exhaust back pressure caused by the loader is high is here than the boost pressure in the intake system, these conditions However, the endeavor to achieve the highest possible boost pressure to achieve a small increase in dynamic pressure in the exhaust system is sufficient.

Des weiteren ist aus der US-PS 4 231 225 ein aufgeladener V- Motor mit zwei Abgasturboladern bekannt. Der erste Abgasturbo­ lader umfaßt eine Abgasturbine und einen Ladeluftverdichter, während der zweite Abgasturbolader eine Abgasturbine und einen Abgasverdichter aufweist. Das Abgas jeder Zylinderreihe des V- Motors treibt jeweils eine Abgasturbine der Lader an, wobei das Abgas der ersten Zylinderreihe nach Durchströmen des ersten La­ ders über eine Verbindungseleitung zu besagtem Abgasverdichter des zweiten Laders geführt, dort verdichtet und zu einem Zu­ mischventil in der Ladeluftleitung geleitet wird, über welches die Menge rückgeführten Abgases einstellbar ist.Furthermore, a supercharged V- is known from US Pat. No. 4,231,225. Engine with two exhaust gas turbochargers known. The first exhaust gas turbo supercharger comprises an exhaust gas turbine and a charge air compressor, while the second exhaust gas turbocharger has one exhaust gas turbine and one Has exhaust gas compressor. The exhaust gas from each cylinder bank of the V- Motors drives one exhaust gas turbine each of the loaders, whereby the Exhaust gas from the first cylinder bank after flowing through the first La or via a connecting line to said exhaust gas compressor of the second loader, condensed there and closed Mixing valve is routed in the charge air line, via which the amount of recirculated exhaust gas is adjustable.

Der Erfindung liegt die Aufgabe zugrunde, eine Abgasrückführung für eine aufgeladene Brennkraftmaschine so zu gestalten, daß ein für eine optimale Abgasrückführungsrate ausreichendes Druckgefälle zwischen Abgasanlage und dem Ansaugsystem unter allen Last- und Drehzahlbedingungen bei minimalem Leistungsbe­ darf bzw. minimaler Erhöhung des Abgasgegendruckes gesichert ist.The invention has for its object an exhaust gas recirculation for a supercharged internal combustion engine so that  a sufficient for an optimal exhaust gas recirculation rate Pressure drop between the exhaust system and the intake system under all load and speed conditions with minimal performance allowed or minimal increase in exhaust gas back pressure is.

Die Aufgabe wird bei einer gattungsgemäßen Einrichtung mit den kennzeichnenden Merkmalen der Patentansprüche 1 und 2 gelöst, wobei die Merkmale der Unteransprüche vorteilhafte Aus- und Weiterbildungen darstellen. The task is in a generic facility with the characterizing features of claims 1 and 2 solved, the features of the subclaims advantageous training and Represent further training.  

Durch die erfindungsgemäße Abgasrückführung wird gesichert, daß unter allen Last- und Drehzahlbedingun­ gen eine Abgasrückführung in der jeweils optimalen Menge trotz des entgegenstehenden Ladedruckes der Ansaugluft möglich ist, wobei durch die Begrenzung des Rückführdruckes in der Bypaßleitung auf das erforderli­ che Maß die Leistungsaufnahme des Turboladers bzw. die dadurch bewirkte Erhöhung des Abgasgegendruc­ kes auf ein Mindestmaß beschränkt wird.Due to the exhaust gas recirculation according to the invention assured that under all load and speed conditions exhaust gas recirculation in the optimum Quantity despite the opposing boost pressure of the Intake air is possible, by limiting the Return pressure in the bypass line to the required che measure the power consumption of the turbocharger or the resulting increase in exhaust gas counter pressure kes is kept to a minimum.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und wird im folgen­ den näher beschrieben. Es zeigt:An embodiment of the invention is in the Drawing shown schematically and will follow the described in more detail. It shows:

Fig. 1 eine Prinzipdarstellung einer ersten Ausfüh­ rungsform mit einer Abgasturbine und Fig. 1 is a schematic diagram of a first embodiment with an exhaust gas turbine and

Fig. 2 eine Prinzipdarstellung einer zweiten Ausfüh­ rungsform mit zwei Abgasturbinen. Fig. 2 is a schematic diagram of a second embodiment with two exhaust gas turbines.

An eine mit dem Bezugszeichen 1 bezeichnete Brenn­ kraftmaschine ist über einen Auspuffkrümmer 2 eine Abgasleitung 3 und über einen Ansaugkrümmer 4 eine Ansaugleitung 5 angeschlossen. In der Ausführungs­ form nach Fig. 1 ist die Abgasleitung 3 über eine Abga­ sturbine 6 eines Abgasturboladers 7 geführt, wobei das Turbinenlaufrad 8 der Abgasturbine 6 über eine Turbi­ nenwelle 9 mit dem Verdichterlaufrad 10 des in der Ansaugleitung angeordneten Verdichterteiles 11 ver­ bunden ist.At an internal combustion engine designated by the reference numeral 1 , an exhaust pipe 3 is connected via an exhaust manifold 2 and an intake pipe 5 is connected via an intake manifold 4 . In the embodiment according to FIG. 1, the exhaust pipe 3 is guided via an exhaust gas turbine 6 of an exhaust gas turbocharger 7 , the turbine impeller 8 of the exhaust gas turbine 6 being connected via a turbine shaft 9 to the compressor impeller 10 of the compressor part 11 arranged in the intake line.

Stromab des Abgasturbolader 7 setzt sich die Abgas­ leitung 3 in Richtung zu nicht dargestellten Einrichtun­ gen für eine Abgasreinigung und Schalldämpfung fort.Downstream of the exhaust gas turbocharger 7 , the exhaust gas line 3 continues in the direction of facilities (not shown) for exhaust gas purification and noise reduction.

Zwischen Auspuffkrümmer 2 und Abgasturbolader 7 zweigt von der Abgasleitung 3 eine Bypaßleitung 12 ab. Diese Bypaßleitung 12 ist über ein zweites, ebenfalls mit einem Verdichterlaufrad 13 versehenes Verdichterteil 14 des Abgasturboladers 7 geführt und mündet in die Eingangsseite eines 3/2-Wegeventiles 15, an dessen Ausgängen einerseits eine Verbindung 16 in die An­ saugleitung 5 stromab des Verdichterteiles 11 und an­ dererseits eine Rückführleitung 17 angeschlossen ist. Die Rückführleitung 17 mündet direkt wieder in die Abgasleitung 3 stromab der Abgasturbine 6. Damit kann das aus dem Verdichterteil 14 zuströmende Abgas entweder vollständig in die Ansaugleitung 5 eingeleitet werden oder entsprechend der Stellung des 3/2-Wege­ ventiles 15 zu einem beliebigen Anteil wieder in die Abgasleitung 3 zurückgeführt werden.A bypass line 12 branches off from the exhaust line 3 between the exhaust manifold 2 and the exhaust gas turbocharger 7 . This bypass line 12 is guided via a second, also provided with a compressor impeller 13 compressor part 14 of the exhaust gas turbocharger 7 and opens into the input side of a 3/2-way valve 15 , at the outputs of which on the one hand a connection 16 into the suction line 5 downstream of the compressor part 11 and on the other hand, a return line 17 is connected. The return line 17 opens directly into the exhaust line 3 downstream of the exhaust gas turbine 6 . Thus, the exhaust gas flowing in from the compressor part 14 can either be completely introduced into the intake line 5 or, according to the position of the 3/2-way valve 15, can be returned to the exhaust line 3 in any proportion.

In der Ausführungsform nach Fig. 2 sind statt des Abgasturboladers 7 mit zwei voneinander getrennten Verdichterteilen 11, 14 zwei getrennte Abgasturbolader 18, 19 mit jeweils einer Abgasturbine 20, 21 und einem Verdichterteil 22, 23 vorgesehen, wobei die Abgasturbi­ ne 20 des Abgasturboladers 19 zur Verdichtung der rückzuführenden Abgasmenge stromab der Abgastur­ bine 21 des Abgasturboladers 18 für den Ladedruck angeordnet ist.In the embodiment according to FIG. 2, instead of the exhaust gas turbocharger 7 with two separate compressor parts 11 , 14, two separate exhaust gas turbochargers 18 , 19 , each with an exhaust gas turbine 20 , 21 and a compressor part 22 , 23, are provided, the exhaust gas turbines 20 of the exhaust gas turbocharger 19 Compression of the amount of exhaust gas to be recycled is arranged downstream of the exhaust gas line 21 of the exhaust gas turbocharger 18 for the boost pressure.

Wie in Fig. 2 dargestellt, werden die verdichteten Ab­ gase mittels eines an das nicht dargestellte Motorkühl­ system angeschlossenen oder luftdurchströmten Wär­ metauschers 24 gekühlt, um die Temperaturerhöhung der Ansaugluft durch das rückgeführte heiße Abgas zu minimieren.As shown in Fig. 2, the compressed gases are cooled by means of a heat exchanger 24 connected to the engine cooling system, not shown, or through which air flows, in order to minimize the temperature increase of the intake air by the recirculated hot exhaust gas.

Im dargestellten Ausführungsbeispiel nach Fig. 2 ist dieser Wärmetauscher 24 im Leitungsabschnitt zwi­ schen Verdichterteil 22 und dem 3/2-Wegeventil 15 an­ geordnet. Weitere Varianten der Anordnung des Wär­ metauschers 24 z. B. stromauf des 3/2-Wegeventiles 15 sind gleichermaßen denkbar.In the illustrated embodiment according to FIG. 2, this heat exchanger 24 is arranged in the line section between the compressor part 22 and the 3/2-way valve 15 . Other variants of the arrangement of the heat exchanger 24 z. B. upstream of the 3/2-way valve 15 are equally conceivable.

Die voneinander getrennten Verdichterteile 11, 14 nach Fig. 1 oder der voneinander getrennten Abgastur­ bolader 18, 19 nach Fig. 2 sind so ausgelegt, daß unter allen Betriebsbedingungen an der Eingangsseite des 3/2-Wegeventiles 15 ein Druck der verdichteten Abgase vorliegt, der den Druck der aufgeladenen Ansaugluft übersteigt. Damit ist eine Abgasrückführung unter allen Last- und Drehzahlbedingungen möglich, wobei die tat­ sächlich zurückgeführte Abgasmenge von der, in Ab­ hängigkeit motorischer Parameter steuerbaren Stellung des 3/2-Wegeventiles 15 abhängt. Eine teilweise oder vollständige Öffnung der Rückführleitung 17 vermin­ dert entsprechend den Druck der Abgase vor dem 3/2-Wegeventil 15 bzw. am Ausgang des betreffenden Abgasturboladers 7, 19 und verringert damit dessen Lei­ stungsaufnahme.The separate compressor parts 11 , 14 of FIG. 1 or the separate exhaust gas bolader 18 , 19 of FIG. 2 are designed so that under all operating conditions on the input side of the 3/2-way valve 15 there is a pressure of the compressed exhaust gases, the exceeds the pressure of the charged intake air. This makes exhaust gas recirculation possible under all load and speed conditions, the actual amount of exhaust gas actually dependent on the position of the 3/2-way valve 15 which can be controlled as a function of engine parameters. A partial or complete opening of the return line 17 mines accordingly the pressure of the exhaust gases upstream of the 3/2-way valve 15 or at the outlet of the exhaust gas turbocharger 7 , 19 in question and thus reduces its power consumption.

Claims (6)

1. Abgasrückführung für eine aufgeladene Brennkraftmaschine mit einer Bypaßleitung, welche das Abgassystem stromauf eines Laders mit einer Ansaugleitung zwischen Lader und Brennkraft­ maschine verbindet, sowie mit einer Vorrichtung zur Steuerung der Bypaßleitung, dadurch gekennzeichnet, daß innerhalb der Bypaßleitung (12) ein die rückzuführenden Abgase in Richtung zur Ansaugleitung (5) verdichtender Ver­ dichterteil (14) eines Abgasturboladers (7) angeordnet ist, wobei der Abgasturbolader (7) ein Verdichterteil (11) für die Aufladung der Ansaugluft und ein weiteres Verdichterteil (14) für die rückzuführenden Abgase aufweist.1. Exhaust gas recirculation for a supercharged internal combustion engine with a bypass line, which connects the exhaust system upstream of a charger with an intake line between the charger and the internal combustion engine, and with a device for controlling the bypass line, characterized in that within the bypass line ( 12 ) a the exhaust gases to be recirculated in the direction of the intake line ( 5 ) compressing United compressor part ( 14 ) of an exhaust gas turbocharger ( 7 ) is arranged, the exhaust gas turbocharger ( 7 ) having a compressor part ( 11 ) for charging the intake air and a further compressor part ( 14 ) for the exhaust gases to be recirculated. 2. Abgasrückführung für eine aufgeladene Brennkraftmaschine mit einer Bypaßleitung, welche das Abgassystem stromauf eines Laders mit einer Ansaugleitung zwischen Lader und Brennkraft­ maschine verbindet, sowie mit einer Vorrichtung zur Steuerung der Bypaßleitung, dadurch gekennzeichnet, daß innerhalb der Bypaßleitung (12) ein die rückzuführenden Abgase in Richtung zur Ansaugleitung (5) verdichtender Ver­ dichterteil (14, 22) eines Abgasturboladers (19) angeordnet ist, wobei für die Aufladung der Ansaugluft und für die Ver­ dichtung der rückzuführenden Abgase jeweils ein Abgasturbola­ der (18, 19) vorgesehen ist, deren Abgasturbinen (21, 20) in Reihe angeordnet sind.2. Exhaust gas recirculation for a charged internal combustion engine with a bypass line, which connects the exhaust system upstream of a charger with an intake line between the charger and the internal combustion engine, and with a device for controlling the bypass line, characterized in that within the bypass line ( 12 ) a the exhaust gases to be recirculated in the direction of the intake line ( 5 ) compressing United compressor part ( 14 , 22 ) of an exhaust gas turbocharger ( 19 ) is arranged, wherein for the charging of the intake air and for the sealing of the exhaust gases to be recirculated, an exhaust gas turbola ( 18 , 19 ) is provided, the Exhaust gas turbines ( 21 , 20 ) are arranged in series. 3. Abgasrückführung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zwischen Bypaßleitung (12) stromab des Verdichterteiles (14, 22) und der Abgasleitung (3) stromab des Abgasturboladers (7, 19) eine Rückführleitung (17) angeordnet ist.3. Exhaust gas recirculation according to claim 1 or 2, characterized in that a return line ( 17 ) is arranged between the bypass line ( 12 ) downstream of the compressor part ( 14 , 22 ) and the exhaust line ( 3 ) downstream of the exhaust gas turbocharger ( 7 , 19 ). 4. Abgasrückführung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in der Bypaßleitung (12) zwischen Verdichterteil (14, 22) und Ansaugleitung (5) ein Wegeventil (15) angeordnet ist, wo­ bei der Eingang des 3/2-Wegeventils (15) mit dem Verdichter­ teil (14, 22) verbunden ist, und wobei ein erster Ausgang mit der Ansaugleitung (5) zwischen Abgasturbolader (7, 18) und Brennkraftmaschine (1) und ein zweiter Ausgang mit der Rück­ führleitung (17) in Verbindung steht.4. Exhaust gas recirculation according to one of claims 1 to 3, characterized in that in the bypass line ( 12 ) between the compressor part ( 14 , 22 ) and intake line ( 5 ) a directional control valve ( 15 ) is arranged, where at the input of the 3 / 2- Directional control valve ( 15 ) with the compressor part ( 14 , 22 ) is connected, and wherein a first output with the intake line ( 5 ) between the exhaust gas turbocharger ( 7 , 18 ) and the internal combustion engine ( 1 ) and a second output with the return line ( 17 ) communicates. 5. Abgasrückführung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das 3/2-Wegeventil (15) in Abhängigkeit motorischer Para­ meter steuerbar ist.5. Exhaust gas recirculation according to one of claims 1 to 4, characterized in that the 3/2-way valve ( 15 ) is controllable as a function of motor parameters. 6. Abgasrückführung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die rückzuführenden Abgase zur Kühlung über eine Wärme­ austauscher (24) führbar sind.6. Exhaust gas recirculation according to one of claims 1 to 5, characterized in that the exhaust gases to be recirculated can be guided for cooling via a heat exchanger ( 24 ).
DE4231218A 1992-09-18 1992-09-18 Exhaust gas recirculation Expired - Lifetime DE4231218C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4231218A DE4231218C2 (en) 1992-09-18 1992-09-18 Exhaust gas recirculation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4231218A DE4231218C2 (en) 1992-09-18 1992-09-18 Exhaust gas recirculation

Publications (2)

Publication Number Publication Date
DE4231218C1 DE4231218C1 (en) 1993-09-02
DE4231218C2 true DE4231218C2 (en) 1999-03-18

Family

ID=6468231

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4231218A Expired - Lifetime DE4231218C2 (en) 1992-09-18 1992-09-18 Exhaust gas recirculation

Country Status (1)

Country Link
DE (1) DE4231218C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677934A (en) * 2016-12-21 2017-05-17 东风商用车有限公司 EGR and air intake coupling turbocharging system
CN106762246A (en) * 2016-12-21 2017-05-31 东风商用车有限公司 EGR turbocharging system

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416572C1 (en) * 1994-05-11 1995-04-27 Daimler Benz Ag Supercharged internal combustion engine
DE4436732A1 (en) * 1994-10-14 1996-04-18 Abb Management Ag Method and device for high-pressure exhaust gas recirculation of a supercharged internal combustion engine
SE506130C2 (en) * 1994-12-08 1997-11-10 Scania Cv Ab Arrangements for redirecting exhaust gases in supercharged engines with serial turbines
DE4446730C2 (en) * 1994-12-24 1998-03-19 Man Nutzfahrzeuge Ag Exhaust gas recirculation for an internal combustion engine with supercharging
NL1000211C2 (en) * 1995-04-25 1996-10-28 Daf Trucks Nv Suction combustion engine provided with an exhaust gas recirculation system and system for use in such an engine.
DE19623970C2 (en) * 1996-06-15 1999-06-17 Daimler Chrysler Ag Supercharged internal combustion engine with an exhaust gas recirculation line
US5974802A (en) * 1997-01-27 1999-11-02 Alliedsignal Inc. Exhaust gas recirculation system employing a fluidic pump
SE9700474L (en) * 1997-02-10 1997-12-22 Scania Cv Ab Supercharged internal combustion engine, preferably diesel type, equipped with an exhaust gas recirculation device
US5937650A (en) * 1997-03-03 1999-08-17 Alliedsignal Inc. Exhaust gas recirculation system employing a turbocharger incorporating an integral pump, a control valve and a mixer
US6026791A (en) * 1997-03-03 2000-02-22 Alliedsignal Inc. Exhaust gas recirculation valve with integral feedback proportional to volumetric flow
US6145313A (en) * 1997-03-03 2000-11-14 Allied Signal Inc. Turbocharger incorporating an integral pump for exhaust gas recirculation
DE19728353C1 (en) * 1997-07-03 1998-09-24 Daimler Benz Ag IC engine with turbo charger
US6164071A (en) * 1997-09-08 2000-12-26 Cummins Engine Company, Inc. EGR delivery and control system using dedicated full authority compressor
AU6548298A (en) * 1998-02-27 1999-09-15 Allied-Signal Inc. Mixing device for recirculated exhaust gas and fresh air charge
DE19819699B4 (en) * 1998-05-02 2005-05-19 Daimlerchrysler Ag turbocharger
US6205785B1 (en) * 1999-07-21 2001-03-27 Caterpillar Inc. Exhaust gas recirculation system
US6354084B1 (en) 1999-08-20 2002-03-12 Cummins Engine Company, Inc. Exhaust gas recirculation system for a turbocharged internal combustion engine
AU2003260101A1 (en) * 2002-08-21 2004-03-11 Honeywell International Inc. Egr system for turbocharged engines
WO2010072227A1 (en) * 2008-12-22 2010-07-01 Fev Motorentechnik Gmbh Exhaust gas recirculation system and method for exhaust gas recirculation
DE102009050211A1 (en) 2009-10-22 2011-05-12 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Internal-combustion engine for motor vehicle i.e. passenger car, has turbocharger and compressor stages that are driven by turbine of turbocharger, where each compressor stage includes separate intake air opening for fresh air
DE102010003002B4 (en) 2010-03-18 2018-10-31 Man Diesel & Turbo Se Exhaust gas turbocharger arrangement with exhaust gas recirculation device and exhaust gas compressor
DE102010030499A1 (en) 2010-06-24 2011-12-29 Man Diesel & Turbo Se Cylinder head and thus equipped internal combustion engine
CN106837615B (en) * 2016-12-21 2019-02-22 东风商用车有限公司 Multistage EGR turbocharging system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526532A1 (en) * 1984-07-24 1986-02-13 Mazda Motor Corp., Hiroshima INLET TRAINING FOR INTERNAL COMBUSTION ENGINE WITH CHARGER

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526532A1 (en) * 1984-07-24 1986-02-13 Mazda Motor Corp., Hiroshima INLET TRAINING FOR INTERNAL COMBUSTION ENGINE WITH CHARGER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677934A (en) * 2016-12-21 2017-05-17 东风商用车有限公司 EGR and air intake coupling turbocharging system
CN106762246A (en) * 2016-12-21 2017-05-31 东风商用车有限公司 EGR turbocharging system
CN106677934B (en) * 2016-12-21 2018-08-07 东风商用车有限公司 EGR and air intake coupling turbocharging system

Also Published As

Publication number Publication date
DE4231218C1 (en) 1993-09-02

Similar Documents

Publication Publication Date Title
DE4231218C2 (en) Exhaust gas recirculation
DE4416572C1 (en) Supercharged internal combustion engine
EP1375868B1 (en) Engine brake apparatus for a turbocharged IC engine
EP1718851B1 (en) Internal combustion engine comprising two exhaust-gas turbochargers
DE102006011188B4 (en) Two-stage turbocharger for an internal combustion engine
DE4017823C2 (en) Intake system for an internal combustion engine for use with one- or two-stage supercharging
DE3815991C1 (en)
DE3529280C1 (en) Device for increasing the speed of an exhaust gas turbocharger on an internal combustion engine
EP2334919A1 (en) Twin-stage exhaust turbocharging for an internal combustion engine
DE19821792C2 (en) Internal combustion engine with an exhaust gas turbocharger
DE4235794C1 (en) Exhaust gas recirculation for an internal combustion engine
DE102008030569A1 (en) Two-stage exhaust-gas turbocharger for internal combustion engine of vehicle, has low-pressure compressor with bypass line connected to high-pressure compressors in gas conducting manner, and low-pressure turbine with another bypass line
EP1673525B1 (en) Compressor in the induction tract of an internal combustion engine
DE102006055814A1 (en) Turbo-loaded internal combustion engine, has cooling unit integrated and designed in line such that precipitate moves in direction of valve and fresh air mixed with gas is cooled within line, which flows in distributor
DE102008052167A1 (en) Two-stage exhaust gas turbocharger for internal-combustion engine, has closing element provided in manifold, so that exhaust gases from different cylinders are separated and guided to high pressure turbines
DE19734801A1 (en) Exhaust gas recycling system for IC engine with turbo-charger
DE10049314A1 (en) Charging air cooling for multi-cylinder internal combustion engine with turbocharger, has two separate charging air coolers for cooling air in alternative sub-branches that are recombined
DE19849495C2 (en) Supercharged internal combustion engine with a bypass line bridging the exhaust gas turbine
WO2004031552A2 (en) Internal combustion engine comprising an exhaust gas turbocharger and an exhaust gas recirculation device
EP3591185A1 (en) Method for operating a combustion engine with a trim adjuster assigned to the compressor
DE102006047322A1 (en) Combustion engine for use in passenger car, has exhaust gas turbocharger arrangement provided with two exhaust gas turbochargers, which are provided with double-flow exhaust-gas turbines with flow inlets
EP0775817B1 (en) Exhaust gas recirculation for supercharged internal combustion engines
DE102014007167A1 (en) Internal combustion engine and method for operating an internal combustion engine
DE19853127B4 (en) Engine braking method and engine braking device for a supercharged internal combustion engine
DE112004001010B4 (en) Internal combustion engine with exhaust gas recirculation system and pulse converter in the exhaust system

Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DAIMLER-BENZ AKTIENGESELLSCHAFT, 70567 STUTTGART,

8315 Request for restriction filed
8318 Patent restricted
8381 Inventor (new situation)

Free format text: LOESING, WILHELM, DIPL.-ING., 73732 ESSLINGEN, DE MARQUARDT, KLAUS, DIPL.-ING., 73630 REMSHALDEN, DE

8306 Patent modified in the restriction proceedings (reprinted)
D5 Patent modified in the restriction proceedings
8327 Change in the person/name/address of the patent owner

Owner name: DAIMLERCHRYSLER AG, 70567 STUTTGART, DE

8327 Change in the person/name/address of the patent owner

Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE

8327 Change in the person/name/address of the patent owner

Owner name: DAIMLER AG, 70327 STUTTGART, DE

R071 Expiry of right
R071 Expiry of right