DE4231218C1 - Exhaust-return system for pressure-charged engine - has exhaust turbocharger with compressor in by=pass pipe for gas returned to engine intake - Google Patents

Exhaust-return system for pressure-charged engine - has exhaust turbocharger with compressor in by=pass pipe for gas returned to engine intake

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Publication number
DE4231218C1
DE4231218C1 DE4231218A DE4231218A DE4231218C1 DE 4231218 C1 DE4231218 C1 DE 4231218C1 DE 4231218 A DE4231218 A DE 4231218A DE 4231218 A DE4231218 A DE 4231218A DE 4231218 C1 DE4231218 C1 DE 4231218C1
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DE
Germany
Prior art keywords
exhaust gas
exhaust
line
compressor
pressure
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
DE4231218C2 (en
Inventor
Wilhelm Dipl.-Ing. 7300 Esslingen De Loesing
Klaus Dipl.-Ing. 7064 Remshalden De 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
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Mercedes Benz AG
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Publication date
Application filed by Mercedes Benz AG filed Critical Mercedes Benz AG
Priority to DE4231218A priority Critical patent/DE4231218C2/en
Publication of DE4231218C1 publication Critical patent/DE4231218C1/en
Application granted granted Critical
Publication of DE4231218C2 publication Critical patent/DE4231218C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

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  • 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)

Abstract

The return system has a bypass pipe (12) connecting the exhaust system upstream of the pressure-charger to the engine intake (5) and containing a control unit. A compressor-section (14) of an exhaust turbocharger (7) for the returned gas is also incorporated in the bypass pipe. A return pipe (17) can be connected between the bypass pipe upstream of the compressor-section and the exhaust pipe (3) downstream of the turbocharger, and there can be a 3/2-way valve (15) with inlet connected to the compressor-section and outlets to the engine intake and return pipe. USE/ADVANTAGE - Minimum power consumption or increase in exhaust-system back-pressure in pressure-charged engine.

Description

Die Erfindung betrifft eine Abgasrückführung gemäß dem Oberbe­ griff des Patentanspruchs 1.The invention relates to exhaust gas recirculation according to the Oberbe handle of claim 1.

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 Abgas­ system stromauf des Laders und dem Ansaugsystem im Bereich zwischen Lader und Brennkraftmaschine angeordnet ist. Eine derartige Abgasrückführung ist nur unter der Voraussetzung funktionsfähig, daß der durch den Lader bewirkte Abgasgegen­ druck höher ist als der Ladedruck im Ansaugsystem, wobei diese Bedingung jedoch dem Bestreben, einen möglichst hohen Ladedruck bei geringer Staudruckerhöhung im Abgassystem zu erreichen, entgegensteht.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 gases system upstream of the loader and the intake system in the area is arranged between the charger and the internal combustion engine. A Such exhaust gas recirculation is only on the condition functional that the exhaust gas caused by the loader counter pressure is higher than the boost pressure in the intake system However, one condition is to strive for the highest possible boost pressure to be achieved with a slight increase in back pressure in the exhaust system, opposes.

Der Erfindung liegt die Aufgabe zugrunde, eine Abgasrückführung für eine aufgeladene Brennkraftmaschine so zu gestalten, daß ein für eine optimale Abgasrückführungsrate ausreichendes Druck­ gefälle zwischen Abgasanlage und dem Ansaugsystem unter allen Last- und Drehzahlbedingungen bei minimalem Leistungsbedarf 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 pressure sufficient for an optimal exhaust gas recirculation rate slope between the exhaust system and the intake system among all Load and speed conditions with minimal power requirements or minimal increase in exhaust gas back pressure is ensured.

Diese Aufgabe wird bei einer gattungsgemäßen Einrichtung mit den kennzeichnenden Merk­ malen des Patentanspruchs 1 gelöst, wobei die Merkmale der Unteransprüche vorteilhafte Aus- und Weiterbildungen darstellen. This task is carried out in a generic device with the characteristic note paint the patent claim 1, the features of Advantageous training and further education represent.  

Durch die erfindungsgemäße Abgasrückführung wird gesichert, daß unter allen Last- und Drehzahlbedingungen eine Abgasrückführung in der jeweils optimalen Menge trotz des entgegenstehenden La­ dedruckes der Ansaugluft möglich ist, wobei durch die Begren­ zung des Rückführdruckes in der Bypaßleitung auf das erforder­ liche Maß die Leistungsaufnahme des Turboladers bzw. die da­ durch bewirkte Erhöhung des Abgasgegendruckes auf ein Mindestmaß beschränkt wird.The exhaust gas recirculation according to the invention ensures that exhaust gas recirculation under all load and speed conditions in the optimal amount despite the opposite La The pressure of the intake air is possible the return pressure in the bypass line to the required Liche measure the power consumption of the turbocharger or there by bringing the exhaust gas back pressure to a minimum is restricted.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und wird im folgenden näher be­ schrieben. Es zeigt:An embodiment of the invention is in the drawing is shown schematically and will be described in more detail below wrote. It shows:

Fig. 1 eine Prinzipdarstellung einer ersten Ausführungsform 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 Ausführungsform mit zwei Abgasturbinen. Fig. 2 shows a schematic diagram of a second embodiment with two exhaust gas turbines.

An eine mit dem Bezugszeichen 1 bezeichnete Brennkraftmaschine ist über einen Auspuffkrümmer 2 eine Abgasleitung 3 und über einen Ansaugkrümmer 4 eine Ansaugleitung 5 angeschlossen. In der Ausführungsform nach Fig. 1 ist die Abgasleitung 3 über eine Abgasturbine 6 eines Abgasturboladers 7 geführt, wobei das Turbinenlaufrad 8 der Abgasturbine 6 über eine Turbinenwelle 9 mit dem Verdichterlaufrad 10 des in der Ansaugleitung angeord­ neten Verdichterteiles 11 verbunden ist.An exhaust pipe 3 is connected to an internal combustion engine denoted by reference numeral 1 via an exhaust manifold 2 and an intake pipe 5 is connected via an intake manifold 4 . In the embodiment of FIG. 1, the exhaust pipe 3 is guided via an exhaust gas turbine 6 of a turbocharger 7, wherein the turbine impeller 8 of the exhaust turbine 6 is connected via a turbine shaft 9 to the compressor impeller 10 of the angeord Neten in the intake line compressor part 11.

Stromab des Abgasturbolader 7 setzt sich die Abgasleitung 3 in Richtung zu nicht dargestellten Einrichtungen für eine Abgas­ reinigung und Schalldämpfung fort.Downstream of the exhaust gas turbocharger 7 , the exhaust pipe 3 continues in the direction of devices (not shown) for exhaust gas purification and sound absorption.

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 des­ sen Ausgängen einerseits eine Verbindung 16 in die Ansauglei­ tung 5 stromauf des Verdichterteiles 11 und andererseits eine Rückführleitung 17 angeschlossen ist. Die Rückführleitung 17 mündet direkt wieder in die Abgasleitung 3 stromab der Abgas­ turbine 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-Wegeventiles 15 zu einem beliebigen Anteil wieder in die Abgasleitung 3 zurückge­ führt 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 sen outputs on the one hand a connection 16 into the intake device 5 upstream 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 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 Abgasturbo­ laders 7 mit zwei voneinander getrennten Verdichterteilen 11, 14 zwei getrennte Abgasturbolader 18, 19 mit jeweils einer Abgas­ turbine 20, 21 und einem Verdichterteil 22, 23 vorgesehen, wobei die Abgasturbine 20 des Abgasturboladers 19 zur Verdichtung der rückzuführenden Abgasmenge stromab der Abgasturbine 21 des Ab­ gasturboladers 18 für den Ladedruck angeordnet ist.In the embodiment according to FIG. 2, instead of the exhaust gas turbo charger 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 turbine 20 of the exhaust gas turbocharger 19 for compressing the amount of exhaust gas to be recycled downstream of the exhaust gas turbine 21 of the gas turbocharger 18 is arranged for the boost pressure.

Wie in Fig. 2 dargestellt, werden die verdichteten Abgase mit­ tels eines an das nicht dargestellte Motorkühlsystem ange­ schlossenen oder luftdurchströmten Wärmetauschers 24 gekühlt, um die Temperaturerhöhung der Ansaugluft durch das rückgeführte heiße Abgas zu minimieren.As shown in FIG. 2, the compressed exhaust gases are cooled by means of a heat exchanger 24 which is 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 zwischen Verdichterteil 22 und dem 3/2-Wegeventil 15 angeordnet. Weitere Varianten der Anordnung des Wärmetauschers 24 z. B. stromauf des 3/2-Wegeven­ tiles 15 sind gleichermaßen denkbar.In the exemplary embodiment shown in 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 seven tiles 15 are equally conceivable.

Die voneinander getrennten Verdichterteile 11, 14 nach Fig. 1 oder der voneinander getrennten Abgasturbolader 18, 19 nach Fig. 2 sind so ausgelegt, daß unter allen Betriebsbedingungen an der Eingangsseite des 3/2-Wegeventiles 15 ein Druck der verdichte­ ten Abgase vorliegt, der den Druck der aufgeladenen Ansaugluft übersteigt. Damit ist eine Abgasrückführung unter allen Last- und Drehzahlbedingungen möglich, wobei die tatsächlich zurückgeführte Abgasmenge von der, in Abhängigkeit motorischer Parameter steuerbaren Stellung des 3/2-Wegeventiles 15 abhängt. Eine teilweise oder vollständige Öffnung der Rückführleitung 17 vermindert entsprechend den Druck der Abgase vor dem 3/2-Wege­ ventil 15 bzw. am Ausgang des betreffenden Abgasturboladers 7, 19 und verringert damit dessen Leistungsaufnahme.The separate compressor parts 11 , 14 of FIG. 1 or the separate exhaust gas turbocharger 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. Exhaust gas recirculation is thus possible under all load and speed conditions, the actual amount of exhaust gas recirculated depending 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 correspondingly reduces 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 (7)

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, 22) eines Abgasturboladers (7, 19) angeordnet ist.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 , 22 ) of an exhaust gas turbocharger ( 7 , 19 ) is arranged. 2. Abgasrückführung nach Anspruch 1, dadurch gekennzeichnet, daß zwischen Bypaßleitung (12) stromauf des Verdichterteiles (14, 22) und der Abgasleitung (3) stromab des Abgasturboladers (7, 19) eine Rückführleitung (17) angeordnet ist.2. Exhaust gas recirculation according to claim 1, characterized in that a return line ( 17 ) is arranged between the bypass line ( 12 ) upstream of the compressor part ( 14 , 22 ) and the exhaust line ( 3 ) downstream of the exhaust gas turbocharger ( 7 , 19 ). 3. Abgasrückführung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß in der Bypaßleitung (12) zwischen Verdichterteil (14, 22) und Ansaugleitung (5) ein Wegeventil (15) angeordnet ist, wobei der Eingang des 3/2-Wegeventiles (15) mit dem Verdichterteil (14, 22) verbunden ist, und wobei erster Ausgang mit der Ansaugleitung (5) zwischen Abgasturbolader (7, 18) und Brenn­ kraftmaschine (1) und ein zweiter Ausgang mit der Rückführ­ leitung (17) in Verbindung steht.3. Exhaust gas recirculation according to one of claims 1 or 2, characterized in that a directional valve ( 15 ) is arranged in the bypass line ( 12 ) between the compressor part ( 14 , 22 ) and suction line ( 5 ), the input of the 3/2-way valve ( 15 ) with the compressor part ( 14 , 22 ), and wherein the first output with the intake line ( 5 ) between the exhaust gas turbocharger ( 7 , 18 ) and internal combustion engine ( 1 ) and a second output with the return line ( 17 ) in connection stands. 4. Abgasrückführung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das 3/2-Wegeventil (15) in Abhängigkeit motorischer Parameter steuerbar ist.4. Exhaust gas recirculation according to one of claims 1 to 3, characterized in that the 3/2-way valve ( 15 ) is controllable as a function of motor parameters. 5. Abgasrückführung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Abgasturbolader (7) ein Verdichterteil (11) für die Aufladung der Ansaugluft und ein weiteres Verdichterteil (14) für die rückzuführenden Abgase aufweist.5. Exhaust gas recirculation according to one of claims 1 to 4, characterized in that the exhaust gas turbocharger ( 7 ) has a compressor part ( 11 ) for charging the intake air and a further compressor part ( 14 ) for the exhaust gases to be recirculated. 6. Abgasrückführung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß für die Aufladung der Ansaugluft und für die Verdichtung der rückzuführenden Abgase jeweils ein Abgasturbolader (18, 19) vorgesehen ist, deren Abgasturbinen (21, 20) in Reihe angeordnet sind.6. Exhaust gas recirculation according to one of claims 1 to 4, characterized in that an exhaust gas turbocharger ( 18 , 19 ) is provided for the charging of the intake air and for the compression of the exhaust gases to be returned, the exhaust gas turbines ( 21 , 20 ) are arranged in series. 7. Abgasrückführung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die rückzuführenden Abgase zur Kühlung über einen Wärme­ tauscher (24) führbar sind.7. Exhaust gas recirculation according to one of claims 1 to 6, 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

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

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Cited By (23)

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DE4416572C1 (en) * 1994-05-11 1995-04-27 Daimler Benz Ag Turbocharged internal combustion engine
EP0707142A1 (en) * 1994-10-14 1996-04-17 ABB Management AG Method of and device for recirculating exhaust gas to the high pressure side of a supercharged combustion engine
WO1996018030A1 (en) * 1994-12-08 1996-06-13 Scania Cv Aktiebolag Arrangement for return of exhaust gases in supercharged engines with turbines in series
EP0718481A2 (en) * 1994-12-24 1996-06-26 MAN Nutzfahrzeuge Aktiengesellschaft Exhaust gas recirculation for a supercharged internal combustion engine
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.
DE19623970A1 (en) * 1996-06-15 1997-12-18 Daimler Benz Ag Charged internal combustion engine with exhaust return
WO1998035153A1 (en) * 1997-02-10 1998-08-13 Scania Cv Aktiebolag (Publ) Supercharged combustion engine, preferably of diesel type, provided with a device for exhaust gas feedback
WO1998039563A1 (en) * 1997-03-03 1998-09-11 Alliedsignal Inc. Exhaust gas recirculation system employing a turbocharger incorporating an integral pump, a control valve and a mixer
DE19728353C1 (en) * 1997-07-03 1998-09-24 Daimler Benz Ag IC engine with turbo charger
WO1999043943A1 (en) * 1998-02-27 1999-09-02 Alliedsignal Inc. Mixing device for recirculated exhaust gas and fresh air charge
WO1999043944A1 (en) * 1998-02-27 1999-09-02 Alliedsignal Inc. Exhaust gas recirculation valve with integral feedback proportional to volumetric flow
US5974802A (en) * 1997-01-27 1999-11-02 Alliedsignal Inc. Exhaust gas recirculation system employing a fluidic pump
DE19819699A1 (en) * 1998-05-02 1999-11-04 Daimler Chrysler Ag Exhaust gas turbocharger
US6145313A (en) * 1997-03-03 2000-11-14 Allied Signal Inc. Turbocharger incorporating an integral pump for exhaust gas recirculation
US6164071A (en) * 1997-09-08 2000-12-26 Cummins Engine Company, Inc. EGR delivery and control system using dedicated full authority compressor
US6205785B1 (en) * 1999-07-21 2001-03-27 Caterpillar Inc. Exhaust gas recirculation system
US6311494B2 (en) 1999-08-20 2001-11-06 Cummins Engine Company, Inc. Exhaust gas recirculation system for a turbocharged internal combustion engine
WO2004018863A1 (en) * 2002-08-21 2004-03-04 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
DE102010003002A1 (en) 2010-03-18 2011-09-22 Man Diesel & Turbo Se Exhaust gas turbocharger-arrangement for use in internal combustion engine i.e. large diesel engine, in drive system of passenger car, has air guiding device with inlet and outlet, such that compressed air is guided into discharge pipe
DE102010030499A1 (en) 2010-06-24 2011-12-29 Man Diesel & Turbo Se Cylinder head and thus equipped internal combustion engine
CN106837615A (en) * 2016-12-21 2017-06-13 东风商用车有限公司 Multistage EGR turbocharging system

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CN106677934B (en) * 2016-12-21 2018-08-07 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

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DE102010003002A1 (en) 2010-03-18 2011-09-22 Man Diesel & Turbo Se Exhaust gas turbocharger-arrangement for use in internal combustion engine i.e. large diesel engine, in drive system of passenger car, has air guiding device with inlet and outlet, such that compressed air is guided into discharge pipe
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