DE102005052496A1 - Internal combustion engine has exhaust gas turbocharger whereby medium load switching valve in second exhaust gas recirculation line is connected with high pressure side of compressor in operating condition - Google Patents
Internal combustion engine has exhaust gas turbocharger whereby medium load switching valve in second exhaust gas recirculation line is connected with high pressure side of compressor in operating condition Download PDFInfo
- Publication number
- DE102005052496A1 DE102005052496A1 DE102005052496A DE102005052496A DE102005052496A1 DE 102005052496 A1 DE102005052496 A1 DE 102005052496A1 DE 102005052496 A DE102005052496 A DE 102005052496A DE 102005052496 A DE102005052496 A DE 102005052496A DE 102005052496 A1 DE102005052496 A1 DE 102005052496A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gas
- internal combustion
- combustion engine
- gas recirculation
- engine according
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0065—Specific aspects of external EGR control
-
- 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
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
-
- 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
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system 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
- F02M26/04—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
- F02M26/13—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
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/25—Layout, e.g. schematics with coolers having bypasses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/71—Multi-way valves
-
- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
-
- 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
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
- F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/40—Application in turbochargers
-
- 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
-
- 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
- Y02T10/40—Engine management systems
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)
Abstract
Description
Die Erfindung betrifft eine Brennkraftmaschine mit einem Abgasturbolader nach dem Oberbegriff des Anspruchs 1.The The invention relates to an internal combustion engine with an exhaust gas turbocharger according to the preamble of claim 1.
Aus
Ferner
ist aus
Aufgabe der Erfindung ist es daher, eine Brennkraftmaschine mit einem Abgasturbolader nach dem Oberbegriff des Anspruchs 1 zu schaffen, die eine weniger aufwendige und einen geringeren Druckverlust bewirkende Anbindung für das zum Verdichter des Abgasturboladers rückgeführten Abgases ermöglicht.task The invention is therefore, an internal combustion engine with an exhaust gas turbocharger after to provide the preamble of claim 1, which is a less expensive and a lower pressure loss causing connection for the Compressor of the exhaust gas turbocharger recirculated exhaust gas allows.
Diese Aufgabe wird entsprechend den Merkmalen des Anspruchs 1 gelöst.These The object is achieved according to the features of claim 1.
Dementsprechend ist eine Brennkraftmaschine mit einem einen Verdichter und eine abgasbetriebene Turbine umfassenden Abgasturbolader im Ansaugtrakt vorgesehen, wobei dem Verdichter ein Ladeluftkühler nachgeschaltet ist, vom Abgastrakt eine erste Abgasrückführleitung an der Turbine und eine zweite ventilgesteuerte Abgasrückführleitung im Ansaugtrakt am Verdichter mündet, und wobei die zweite Abgasrückführleitung eine Abzweigung, die bei einem Betriebszustand mit mittlerer Last über ein Umschaltventil in der zweiten Abgasrückführleitung mit der Hochdruckseite des Verdichters vor dem Ladeluftkühler verbunden ist, aufweist. Hierdurch ergibt sich eine wenig aufwendige und einen geringeren Druckverlust bewirkende Anbindung für das zum Verdichter des Abgasturboladers rückgeführten Abgases.Accordingly is an internal combustion engine with a compressor and a compressor exhaust-driven turbine exhaust gas turbocharger in the intake system provided, wherein the compressor is followed by a charge air cooler, from Exhaust tract a first exhaust gas recirculation line at the turbine and a second valve controlled exhaust gas recirculation line in the intake tract at the compressor opens, and wherein the second exhaust gas recirculation line a branch, which in an operating condition with medium load via a switching valve in the second exhaust gas recirculation line with the high-pressure side of the compressor connected in front of the intercooler is, has. This results in a little expensive and a Lower pressure loss causing connection for the compressor of the exhaust gas turbocharger recirculated exhaust gas.
Weitere Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung und den Unteransprüchen zu entnehmen.Further Embodiments of the invention are the following description and the dependent claims refer to.
Die Erfindung wird nachstehend anhand eines in den beigefügten Abbildungen schematisiert dargestellten Ausführungsbeispiels näher erläutert.The The invention will be described below with reference to the attached drawings schematically illustrated embodiment explained in more detail.
Die
in
Ferner
ist vorgesehen, daß vor
der Turbine
Zusätzlich kann
vorteilhafterweise eine mit einem steuerbaren Ventil
Die
Ventile
Gegebenenfalls
kann dem Steuerventil
Die
Regeneration des Partikelfilters
Wenn
der über
die zweite Abgasrückführleitung
In
diesem Fall, wie auch dann, wenn der über die zweite Abgasrückführleitung
Die
schematisch in
Das
Umschaltventil
Wenn bei Vollast bei niedriger Drehzahl und hohem Druckverhältnis entsprechend Punkt ➀ ein schnelles Auskuppeln bzw. eine Rücknahme des Gaspedals erfolgt, wandert der Betriebspunkt von Punkt ➀ zu Punkt ➁ entlang einer Kurve K. Der Luftmassenstrom bricht zusammen, aber der Druck bleibt vorerst aufgebaut, so daß es zu dynamischen Pumpschlägen kommt, die man aus Komfortgründen vermeiden möchte. Detektieren kann man den Beginn hiervon über hohe Fluktuationen im Massenstrom etwa mittels eines Heißfilmluftmassensensors.If at full load at low speed and high pressure ratio accordingly Point ➀ a quick disengagement or a return of the accelerator pedal, the operating point of point ➀ increases Point ➁ along a curve K. The air mass flow breaks together, but the pressure remains for the time being, so that it too dynamic pumping strokes that you avoid for reasons of comfort would like to. One can detect the onset of this by means of high fluctuations in the mass flow for example by means of a hot film air mass sensor.
Vermeiden
kann man die dynamischen Pumpschläge dadurch, daß etwa über das
Umschaltventil
Dabei
kann man zwei Möglichkeiten
vorsehen:
Wenn starke Luftmassenoszillationen gemessen werden,
ist das Umschaltventil
es
wird prinzipiell bei schneller Laständerung in einem definierten
Lastbereich das Umschaltventil
When strong air mass oscillations are measured, the changeover valve is
In principle, it is the changeover valve with a fast load change in a defined load range
Dementsprechend
eröffnet
die Erfindung letztlich drei Betriebsmöglichkeiten, nämlich in
höheren
Teillastbereichen eine Abgasrückführung in
den Hochdruckbereich des Ladelufttraktes, in niedrigen Lastbereichen
eine Abgasrückführung in
den Niederdruckbereich des Ladelufttraktes und eine Bypassschaltung
zwischen Hoch- und Niederdruckbereich des Ladelufttraktes zur Verhinderung
von schadensrelevanten Zuständen
etwa bei Überschreiten
der Pumpgrenze des Abgasturboladers
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005052496A DE102005052496A1 (en) | 2005-11-03 | 2005-11-03 | Internal combustion engine has exhaust gas turbocharger whereby medium load switching valve in second exhaust gas recirculation line is connected with high pressure side of compressor in operating condition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005052496A DE102005052496A1 (en) | 2005-11-03 | 2005-11-03 | Internal combustion engine has exhaust gas turbocharger whereby medium load switching valve in second exhaust gas recirculation line is connected with high pressure side of compressor in operating condition |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005052496A1 true DE102005052496A1 (en) | 2007-05-10 |
Family
ID=37949803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005052496A Withdrawn DE102005052496A1 (en) | 2005-11-03 | 2005-11-03 | Internal combustion engine has exhaust gas turbocharger whereby medium load switching valve in second exhaust gas recirculation line is connected with high pressure side of compressor in operating condition |
Country Status (1)
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DE (1) | DE102005052496A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2924469A3 (en) * | 2007-12-04 | 2009-06-05 | Renault Sas | Air recirculating method for over supplied internal combustion engine, involves recirculating portion of air in downstream of compressor towards upstream of compressor, in case of detection of compressor pumping phenomenon |
FR2933740A1 (en) * | 2008-07-09 | 2010-01-15 | Renault Sas | Internal combustion engine e.g. diesel engine, controlling method for motor vehicle, involves circulating gas flow such that volume ratio of gas to other gases is in specific percentage range, when engine operates at low speed and full load |
EP2305991A1 (en) | 2009-09-25 | 2011-04-06 | Volkswagen Aktiengesellschaft | Combustion engine with an exhaust gas turbocharger and an exhaust gas return system |
DE102009058609A1 (en) | 2009-12-17 | 2011-06-22 | Volkswagen AG, 38440 | Device for exhaust gas recirculation and method for heating a cooling medium of an internal combustion engine and use of the device for exhaust gas recirculation |
EP2395224A2 (en) | 2010-06-11 | 2011-12-14 | Audi AG | Motor vehicle and method for operating a combustion engine |
EP2546506A1 (en) * | 2010-03-09 | 2013-01-16 | Toyota Jidosha Kabushiki Kaisha | Controller for internal combustion engine |
DE102015008736A1 (en) * | 2015-07-07 | 2017-01-12 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | A drive device for driving a vehicle and method and computer program product for operating this drive device |
DE102015214324A1 (en) * | 2015-07-29 | 2017-02-02 | Ford Global Technologies, Llc | Supercharged internal combustion engine with exhaust gas recirculation and flap and method for operating such an internal combustion engine |
EP3237742A1 (en) * | 2014-12-22 | 2017-11-01 | Renault S.A.S. | Device for recirculating exhaust gases for a motor vehicle internal combustion engine |
WO2019001730A1 (en) * | 2017-06-30 | 2019-01-03 | Volvo Truck Corporation | A vehicle system, and a method for such vehicle system |
DE102018109688A1 (en) | 2018-04-23 | 2019-10-24 | Volkswagen Aktiengesellschaft | Exhaust gas recirculation arrangement with heat exchanger, heat exchanger and internal combustion engine |
DE102009051027B4 (en) * | 2009-10-28 | 2021-01-21 | Audi Ag | Drive unit with a diesel internal combustion engine and exhaust gas recirculation as well as a method for operating such a drive unit |
Citations (3)
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US5279273A (en) * | 1992-04-10 | 1994-01-18 | Toyota Jidoshia Kabushiki Kaisha | EGR apparatus for an internal combustion engine |
EP1375893A1 (en) * | 2002-06-21 | 2004-01-02 | Renault s.a.s. | Exhaust gas recirculation device for spark ignited turbocharged internal combustion engine |
EP1405995A1 (en) * | 2002-10-02 | 2004-04-07 | Ford Global Technologies, Inc., A subsidiary of Ford Motor Company | Motor system with turbocharger and exhaust gas recirculation as well as method for the operation thereof |
-
2005
- 2005-11-03 DE DE102005052496A patent/DE102005052496A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US5279273A (en) * | 1992-04-10 | 1994-01-18 | Toyota Jidoshia Kabushiki Kaisha | EGR apparatus for an internal combustion engine |
EP1375893A1 (en) * | 2002-06-21 | 2004-01-02 | Renault s.a.s. | Exhaust gas recirculation device for spark ignited turbocharged internal combustion engine |
EP1405995A1 (en) * | 2002-10-02 | 2004-04-07 | Ford Global Technologies, Inc., A subsidiary of Ford Motor Company | Motor system with turbocharger and exhaust gas recirculation as well as method for the operation thereof |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2924469A3 (en) * | 2007-12-04 | 2009-06-05 | Renault Sas | Air recirculating method for over supplied internal combustion engine, involves recirculating portion of air in downstream of compressor towards upstream of compressor, in case of detection of compressor pumping phenomenon |
FR2933740A1 (en) * | 2008-07-09 | 2010-01-15 | Renault Sas | Internal combustion engine e.g. diesel engine, controlling method for motor vehicle, involves circulating gas flow such that volume ratio of gas to other gases is in specific percentage range, when engine operates at low speed and full load |
EP2305991A1 (en) | 2009-09-25 | 2011-04-06 | Volkswagen Aktiengesellschaft | Combustion engine with an exhaust gas turbocharger and an exhaust gas return system |
DE102009043085A1 (en) | 2009-09-25 | 2011-08-04 | Volkswagen AG, 38440 | Internal combustion engine with an exhaust gas turbocharger and an exhaust gas recirculation system |
DE102009051027B4 (en) * | 2009-10-28 | 2021-01-21 | Audi Ag | Drive unit with a diesel internal combustion engine and exhaust gas recirculation as well as a method for operating such a drive unit |
DE102009058609A1 (en) | 2009-12-17 | 2011-06-22 | Volkswagen AG, 38440 | Device for exhaust gas recirculation and method for heating a cooling medium of an internal combustion engine and use of the device for exhaust gas recirculation |
EP2336538A1 (en) | 2009-12-17 | 2011-06-22 | Volkswagen Aktiengesellschaft | Device for reclaiming exhaust gas and method for heating a coolant of a combustion engine and use of the exhaust gas reclaim device |
EP2546506A1 (en) * | 2010-03-09 | 2013-01-16 | Toyota Jidosha Kabushiki Kaisha | Controller for internal combustion engine |
EP2546506A4 (en) * | 2010-03-09 | 2014-04-30 | Toyota Motor Co Ltd | Controller for internal combustion engine |
EP2395224A2 (en) | 2010-06-11 | 2011-12-14 | Audi AG | Motor vehicle and method for operating a combustion engine |
DE102010023524A1 (en) | 2010-06-11 | 2011-12-15 | Audi Ag | Motor vehicle and method for operating an internal combustion engine |
EP3237742A1 (en) * | 2014-12-22 | 2017-11-01 | Renault S.A.S. | Device for recirculating exhaust gases for a motor vehicle internal combustion engine |
DE102015008736A1 (en) * | 2015-07-07 | 2017-01-12 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | A drive device for driving a vehicle and method and computer program product for operating this drive device |
US10018162B2 (en) | 2015-07-07 | 2018-07-10 | GM Global Technology Operations LLC | Driving device for driving a vehicle as well as method and computer program product for operating this driving device |
US10190544B2 (en) | 2015-07-29 | 2019-01-29 | Ford Global Technologies, Llc | Supercharger with exhaust gas recirculation |
DE102015214324A1 (en) * | 2015-07-29 | 2017-02-02 | Ford Global Technologies, Llc | Supercharged internal combustion engine with exhaust gas recirculation and flap and method for operating such an internal combustion engine |
WO2019001730A1 (en) * | 2017-06-30 | 2019-01-03 | Volvo Truck Corporation | A vehicle system, and a method for such vehicle system |
WO2019001989A1 (en) * | 2017-06-30 | 2019-01-03 | Volvo Truck Corporation | A vehicle system and a method for such vehicle system |
US11255297B2 (en) | 2017-06-30 | 2022-02-22 | Volvo Truck Corporation | Vehicle system and a method for such vehicle system |
DE102018109688A1 (en) | 2018-04-23 | 2019-10-24 | Volkswagen Aktiengesellschaft | Exhaust gas recirculation arrangement with heat exchanger, heat exchanger and internal combustion engine |
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