DE102008005308A1 - Internal-combustion engine, has exhaust gas recirculation pipeline arranged in compressor at fresh air pipeline, where external diameter of exhaust gas recirculation pipeline is lesser than that of fresh air pipeline - Google Patents

Internal-combustion engine, has exhaust gas recirculation pipeline arranged in compressor at fresh air pipeline, where external diameter of exhaust gas recirculation pipeline is lesser than that of fresh air pipeline Download PDF

Info

Publication number
DE102008005308A1
DE102008005308A1 DE102008005308A DE102008005308A DE102008005308A1 DE 102008005308 A1 DE102008005308 A1 DE 102008005308A1 DE 102008005308 A DE102008005308 A DE 102008005308A DE 102008005308 A DE102008005308 A DE 102008005308A DE 102008005308 A1 DE102008005308 A1 DE 102008005308A1
Authority
DE
Germany
Prior art keywords
exhaust gas
gas recirculation
fresh air
pipeline
compressor
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.)
Ceased
Application number
DE102008005308A
Other languages
German (de)
Inventor
Rüdiger Eibl
Jan Velthuis
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE102008005308A priority Critical patent/DE102008005308A1/en
Publication of DE102008005308A1 publication Critical patent/DE102008005308A1/en
Ceased legal-status Critical Current

Links

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
    • F02M35/10209—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
    • 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
    • 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
    • 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
    • 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)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

The engine has an exhaust gas recirculation pipeline (1) over which the exhaust gas is removed from an exhaust gas system. The exhaust gas is introduced into a fresh air pipeline (3) over the exhaust gas recirculation pipeline in a flow direction of the fresh gases before a compressor (2). The recirculation pipeline is arranged in the compressor at the air pipeline, where the external diameter of the exhaust gas recirculation pipeline is lesser than that of the fresh air pipeline. The external diameter of the recirculation pipeline is 50 percentage of the internal diameter of the air pipeline.

Description

Die Erfindung betrifft eine Brennkraftmaschine mit einem Abgasturbolader und einer Abgasrückführeinrichtung mit den Merkmalen aus dem Oberbegriff des Patentanspruchs 1.The The invention relates to an internal combustion engine with an exhaust gas turbocharger and an exhaust gas recirculation device with the features from the preamble of claim 1.

Aus der europäischen Offenlegungsschrift EP 0 826 868 A1 ist eine Brennkraftmaschine mit einem Abgasturbolader und einer Abgasrückführeinrichtung bekannt, bei der die Abgasrückführeinrichtung die Abgasanlage und die Ansauganlage gasführend miteinander verbindet, wobei die Abgaseinleitstelle saugseitig vor dem Verdichter des Abgasturboladers angeordnet. An dieser Einleitstelle wird Abgas der angesaugten, noch nicht verdichteten Frischluft beigemengt.From the European patent application EP 0 826 868 A1 an internal combustion engine with an exhaust gas turbocharger and an exhaust gas recirculation device is known in which the exhaust gas recirculation device connects the exhaust system and the intake system gas-conducting, wherein the Abgaseinleitstelle arranged on the suction side in front of the compressor of the exhaust gas turbocharger. At this point of introduction exhaust gas is added to the sucked, not yet compressed fresh air.

Nachteilig bei der bekannten Ausgestaltung ist ein Partikelbewurf des Verdichterrades mit Ruß und Kondensatpartikel, die zur Beschädigung des Verdichterrades führen können.adversely in the known embodiment is a Partikelbewurf the compressor wheel with soot and condensate particles that damage can lead the compressor wheel.

Aus diesem Grund wird in der deutschen Offenlegungsschrift DE 10 2005 023 958 A1 vorgeschlagen, vor dem Verdichterradeinlauf einen Schleuderkörper, der als Partikelabscheider fungiert, anzuordnen. Durch diese Maß nahme wird der direkte Bewurf des Verdichterrades mit Partikeln verhindert und eine Beschädigung des Verdichterrades vermieden.For this reason, in the German Offenlegungsschrift DE 10 2005 023 958 A1 proposed, prior to the compressor wheel inlet to arrange a spinner, which acts as a particle separator. By this measure measure the direct grout of the compressor wheel is prevented with particles and prevents damage to the compressor.

Nachteilig an dieser Ausgestaltung ist jedoch der relativ große Strömungswiderstand in der Ansaugleitung der Brennkraftmaschine, was zu Leistungsverlusten führt.adversely However, in this embodiment, the relatively large flow resistance in the intake manifold of the internal combustion engine, resulting in power losses leads.

Aufgabe der vorliegenden Erfindung ist es, eine Maßnahme aufzuzeigen, mit der der Partikelbewurf auf das Verdichterrad verringert wird, ohne dass hierbei ein großer Strömungswiderstand im Ansaugweg der Brennkraftmaschine hervorgerufen wird.task the present invention is to show a measure with which the Partikelbewurf is reduced to the compressor wheel, without this a great flow resistance caused in the intake of the internal combustion engine.

Diese Aufgabe wird durch die Merkmale im kennzeichnenden Teil des Patentanspruchs 1 gelöst.These The object is achieved by the features in the characterizing part of the claim 1 solved.

Durch die erfindungsgemäße Ausgestaltung, d. h. mit der zentralen Einleitung des Abgases, können Partikel, bestehend aus Russ oder Kondensat, größer als 200 μm in die Sauganlage eingebracht werden, ohne dass das Verdichterrad beschädigt wird. Hieraus entstehen Kostenvorteile, da beispielsweise ein zusätzlicher Abgasrückführpfad für die Einleitung von kalter Abgasrückführung mit Kondensat entfallen kann. Das Abgasrückführsystem wird somit durch die erfindungsgemäße Ausgestaltung vom Aufbau her einfacher und die Packagesituation entspannt sich. Werden Partikel größer als 200 μm eingeleitet, so entstehen auch hier Kostenvorteile, da keine gesonderten Vorkehrungen, wie Partikelabscheider, Filter oder spezielle Katalysatoren usw. vorgesehen werden müssen.By the embodiment of the invention, d. H. With the central inlet of the exhaust gas, particles, consisting of soot or condensate, greater than 200 .mu.m are introduced into the intake system without the compressor wheel is damaged. This results in cost advantages, because, for example, an additional exhaust gas recirculation path for the introduction of cold exhaust gas recirculation can be omitted with condensate. The exhaust gas recirculation system is thus by the inventive design structurally simpler and the package situation relaxes. If particles greater than 200 μm are introduced, cost advantages are also incurred here, since there are no separate arrangements, like particle separators, filters or special catalysts etc. must be provided.

Innerhalb der geometrischen Ausgestaltungen gemäß der Patentansprüche 2 und 3 ist die erfindungsgemäße Wirkung besonders effektiv.Within the geometric configurations according to the claims 2 and 3, the effect of the invention is particularly effectively.

Im Folgenden ist die Erfindung anhand eines besonders bevorzugten Ausführungsbeispieles in einer einzigen Figur näher erläutert.in the The following is the invention with reference to a particularly preferred embodiment explained in more detail in a single figure.

1 zeigt schematisch einen Schnitt durch eine Frischluftleitung, die in einen ebenfalls schematisch geschnitten dargestellten Verdichter eines Abgasturboladers mündet. 1 schematically shows a section through a fresh air line, which opens into a likewise schematically shown cut compressor of an exhaust gas turbocharger.

1 zeigt schematisch einen Schnitt durch eine Frischluftleitung 3, die in einen ebenfalls schematisch geschnitten dargestellten Verdichter 2 eines nicht näher dargestellten Abgasturboladers mündet. Zentral im Verdichter 2 ist ein Verdichterrad 5 mit seiner Antriebswelle 6 angeordnet. Eine Strömungsrichtung der Frischluft und letztlich auch von einem rückgeführten Abgas ist durch einen Pfeil angedeutet. In die Frischluftleitung 3 mündet vor dem Verdichterrad 5 eine in der Frischluftleitung geknickt dargestellte Abgasrückführleitung 1 ein. Über die Abgasrückführleitung 1 werden die Abgase einer nicht dargestellten Brennkraftmaschine in ein Ansaugsystem der Brennkraftmaschine zur Einhaltung von Emissionsvorschriften eingeleitet. Eine Einleitstelle 4 des Abgases ist weitgehend zentrisch in der Frischluftleitung 3 bzw. zum Verdichterrad 3 angeordnet. 1 schematically shows a section through a fresh air line 3 , which in a likewise schematically cut compressor 2 an exhaust gas turbocharger not shown in detail. Central in the compressor 2 is a compressor wheel 5 with its drive shaft 6 arranged. A flow direction of the fresh air and ultimately also of a recirculated exhaust gas is indicated by an arrow. Into the fresh air line 3 discharges in front of the compressor wheel 5 an exhaust gas recirculation line shown bent in the fresh air line 1 one. About the exhaust gas recirculation line 1 The exhaust gases of an internal combustion engine, not shown, are introduced into an intake system of the internal combustion engine for compliance with emission regulations. A discharge point 4 the exhaust gas is largely centric in the fresh air line 3 or to the compressor wheel 3 arranged.

Besonders bevorzugt ist die Einleitstelle 4 des Abgases in die Frischluftleitung 3 höchstens 300 mm von dem Verdichter 2 entfernt. Um Strömungsverluste zu minimieren, beträgt der Außendurchmesser der Abgasrückführleitung 1 höchstens 50% des Innendurchmessers der Frischluftleitung 3.Particularly preferred is the discharge point 4 the exhaust gas in the fresh air line 3 at most 300 mm from the compressor 2 away. In order to minimize flow losses, the outer diameter of the exhaust gas recirculation line 1 no more than 50% of the inside diameter of the fresh air line 3 ,

Durch die erfindungsgemäße Ausgestaltung, d. h. mit der zentralen Einleitung des Abgases, können Partikel, bestehend aus Russ oder Kondensat, größer als 200 μm in die Sauganlage eingebracht werden, ohne dass das Verdichterrad beschädigt wird. Hieraus entstehen Kostenvorteile, da beispielsweise ein zusätzlicher Abgasrückführpfad für die Einleitung von kalter Abgasrückführung mit Kondensat entfallen kann. Das Abgasrückführsystem wird somit durch die erfindungsgemäße Ausgestaltung vom Aufbau her einfacher und die Packagesituation entspannt sich. Werden Partikel größer als 200 μm eingeleitet, so entstehen auch hier Kostenvorteile, da keine gesonderten Vorkehrungen, wie Partikelabscheider, Filter oder spezielle Katalysatoren usw. vorgesehen werden müssen.By the embodiment of the invention, d. H. With the central inlet of the exhaust gas, particles, consisting of soot or condensate, greater than 200 .mu.m are introduced into the intake system without the compressor wheel is damaged. This results in cost advantages, because, for example, an additional exhaust gas recirculation path for the introduction of cold exhaust gas recirculation can be omitted with condensate. The exhaust gas recirculation system is thus by the inventive design structurally simpler and the package situation relaxes. If particles greater than 200 μm are introduced, cost advantages are also incurred here, since there are no separate arrangements, like particle separators, filters or special catalysts etc. must be provided.

11
AbgasrückführleitungExhaust gas recirculation line
22
Verdichtercompressor
33
FrischluftleitungFresh air line
44
Einleitstelleinlet point
55
Verdichterradcompressor
66
Antriebswelledrive shaft

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • - EP 0826868 A1 [0002] - EP 0826868 A1 [0002]
  • - DE 102005023958 A1 [0004] - DE 102005023958 A1 [0004]

Claims (3)

Brennkraftmaschine mit einem Abgasturbolader und einer Abgasrückführeinrichtung, bestehend im Wesentlichen aus einer Abgasrückführleitung (1), wobei ein Abgas aus einer Abgasanlage über die Abgasrückführleitung (1) entnehmbar ist und in Strömungsrichtung eines Frischgases vor einem Verdichter (2) des Abgasturboladers über die Abgasrückführleitung (1) in eine Frischluftleitung (3) einbringbar ist, dadurch gekennzeichnet dass, die Abgasrückführleitung (1) in der Frischluftleitung (3) weitgehend zentrisch zum Verdichter (2) angeordnet ist, wobei die Abgasrückführleitung (1) einen kleineren Außendurchmesser aufweist als die Frischluftleitung (3).Internal combustion engine with an exhaust gas turbocharger and an exhaust gas recirculation device, consisting essentially of an exhaust gas recirculation line ( 1 ), wherein an exhaust gas from an exhaust system via the exhaust gas recirculation line ( 1 ) is removable and in the flow direction of a fresh gas in front of a compressor ( 2 ) of the exhaust gas turbocharger via the exhaust gas recirculation line ( 1 ) in a fresh air line ( 3 ) can be introduced, characterized in that, the exhaust gas recirculation line ( 1 ) in the fresh air line ( 3 ) largely centric to the compressor ( 2 ), wherein the exhaust gas recirculation line ( 1 ) has a smaller outer diameter than the fresh air line ( 3 ). Brennkraftmaschine nach Patentanspruch 1, gekennzeichnet dadurch, dass eine Einleitstelle (4) des Abgases in die Frischluftleitung (3) höchstens 300 mm von dem Verdichter (2) entfernt ist.Internal combustion engine according to claim 1, characterized in that a discharge point ( 4 ) of the exhaust gas into the fresh air line ( 3 ) at most 300 mm from the compressor ( 2 ) is removed. Brennkraftmaschine nach Patentanspruch 1 oder 2, gekennzeichnet dadurch, dass der Außendurchmesser der Abgasrückführleitung (1) höchstens 50% des Innendurchmessers der Frischluftleitung (3) beträgt.Internal combustion engine according to claim 1 or 2, characterized in that the outer diameter of the exhaust gas recirculation line ( 1 ) at most 50% of the inside diameter of the fresh air line ( 3 ) is.
DE102008005308A 2008-01-21 2008-01-21 Internal-combustion engine, has exhaust gas recirculation pipeline arranged in compressor at fresh air pipeline, where external diameter of exhaust gas recirculation pipeline is lesser than that of fresh air pipeline Ceased DE102008005308A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102008005308A DE102008005308A1 (en) 2008-01-21 2008-01-21 Internal-combustion engine, has exhaust gas recirculation pipeline arranged in compressor at fresh air pipeline, where external diameter of exhaust gas recirculation pipeline is lesser than that of fresh air pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008005308A DE102008005308A1 (en) 2008-01-21 2008-01-21 Internal-combustion engine, has exhaust gas recirculation pipeline arranged in compressor at fresh air pipeline, where external diameter of exhaust gas recirculation pipeline is lesser than that of fresh air pipeline

Publications (1)

Publication Number Publication Date
DE102008005308A1 true DE102008005308A1 (en) 2009-07-23

Family

ID=40785924

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102008005308A Ceased DE102008005308A1 (en) 2008-01-21 2008-01-21 Internal-combustion engine, has exhaust gas recirculation pipeline arranged in compressor at fresh air pipeline, where external diameter of exhaust gas recirculation pipeline is lesser than that of fresh air pipeline

Country Status (1)

Country Link
DE (1) DE102008005308A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015052295A (en) * 2013-09-06 2015-03-19 三菱重工業株式会社 Supercharger
WO2015098391A1 (en) * 2013-12-26 2015-07-02 Toyota Jidosha Kabushiki Kaisha Exhaust gas recirculation apparatus for internal combustion engine with supercharger
WO2017194375A1 (en) * 2016-05-09 2017-11-16 Volvo Truck Corporation An inlet system for an internal combustion engine
AT525743A4 (en) * 2022-04-29 2023-07-15 Avl List Gmbh COMBUSTION ENGINE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826868A1 (en) 1996-08-24 1998-03-04 Volkswagen Aktiengesellschaft Method to purify the exhaust gas of an internal combustion engine
DE19725668C1 (en) * 1997-06-18 1998-10-29 Daimler Benz Ag Exhaust gas recirculation circuit for internal combustion engine
US20060045764A1 (en) * 2004-08-30 2006-03-02 Glenn Thompson Compressor stage separation system
DE102005023958A1 (en) 2005-05-20 2006-11-23 Behr Gmbh & Co. Kg Turbocharger assembly and method of operating a turbocharger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826868A1 (en) 1996-08-24 1998-03-04 Volkswagen Aktiengesellschaft Method to purify the exhaust gas of an internal combustion engine
DE19725668C1 (en) * 1997-06-18 1998-10-29 Daimler Benz Ag Exhaust gas recirculation circuit for internal combustion engine
US20060045764A1 (en) * 2004-08-30 2006-03-02 Glenn Thompson Compressor stage separation system
DE102005023958A1 (en) 2005-05-20 2006-11-23 Behr Gmbh & Co. Kg Turbocharger assembly and method of operating a turbocharger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015052295A (en) * 2013-09-06 2015-03-19 三菱重工業株式会社 Supercharger
WO2015098391A1 (en) * 2013-12-26 2015-07-02 Toyota Jidosha Kabushiki Kaisha Exhaust gas recirculation apparatus for internal combustion engine with supercharger
WO2017194375A1 (en) * 2016-05-09 2017-11-16 Volvo Truck Corporation An inlet system for an internal combustion engine
WO2017194079A1 (en) * 2016-05-09 2017-11-16 Volvo Truck Corporation An inlet system for an internal combustion engine
US10590890B2 (en) 2016-05-09 2020-03-17 Volvo Truck Corporation Inlet system for an internal combustion engine
AT525743A4 (en) * 2022-04-29 2023-07-15 Avl List Gmbh COMBUSTION ENGINE
AT525743B1 (en) * 2022-04-29 2023-07-15 Avl List Gmbh COMBUSTION ENGINE
DE102023111121A1 (en) 2022-04-29 2023-11-02 Avl List Gmbh Internal combustion engine with media supply device

Similar Documents

Publication Publication Date Title
EP1867848B1 (en) Combustion machine with secondary air injection system
DE4446730C2 (en) Exhaust gas recirculation for an internal combustion engine with supercharging
DE102008052170A1 (en) Two-stage turbocharger for an internal combustion engine
DE102010027216A1 (en) Exhaust gas recirculation system for an internal combustion engine
DE102004041166A1 (en) Turbocharger internal combustion engine with exhaust gas recirculation flow
DE102009046370A1 (en) Method and arrangement for exhaust gas recirculation in an internal combustion engine
DE112009001059T5 (en) Exhaust-driven auxiliary air pump and products and methods of use
DE102010042104A1 (en) Supercharger for combustion engine, has compressor housing comprising coolant channel that is integrated into coolant circuit and extended tangentially and radially around compressor screw arranged radially around compressor wheel
DE102012019947A1 (en) Internal combustion engine
DE102005040526A1 (en) Crankcase ventilation system
DE102009036743A1 (en) Internal combustion engine
DE102008057572B4 (en) Exhaust system for an internal combustion engine
DE102017222050A1 (en) engine system
EP2256314A1 (en) Combustion engine
DE112019002823T5 (en) Blowby gas system
DE102008005308A1 (en) Internal-combustion engine, has exhaust gas recirculation pipeline arranged in compressor at fresh air pipeline, where external diameter of exhaust gas recirculation pipeline is lesser than that of fresh air pipeline
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
DE102012107649B4 (en) Exhaust gas recirculation system for an internal combustion engine
DE102009041223A1 (en) Exhaust gas turbocharger arrangement, thus equipped drive system and method for laying out the drive system
DE102007043585A1 (en) Turbocharger arrangement for internal-combustion engine, has turbochargers with turbine housings arranged in turbines, where pressure side of one turbocharger is connected gas-prominently with annular gap of other turbocharger
DE102012200444A1 (en) Internal combustion engine for after-treatment of exhaust gases, has compressor arranged in air duct for supplying fresh air to cylinder, while another air duct is branched off from former air line to supply burner with compressed fresh air
DE102012022154A1 (en) Method for operating an internal combustion engine with high pressure and low pressure exhaust gas recirculation
DE102019101141A1 (en) Ventilation device for a crankcase
DE102005008638B4 (en) Particulate filter arrangement for a diesel engine with exhaust gas recirculation
DE202015101104U1 (en) Insulating metal structure in an exhaust tract with two turbochargers

Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
R012 Request for examination validly filed
R012 Request for examination validly filed

Effective date: 20141119

R016 Response to examination communication
R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: F02M0025070000

Ipc: F02M0026090000

R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: F02M0026090000

Ipc: F02M0026190000

R016 Response to examination communication
R002 Refusal decision in examination/registration proceedings
R003 Refusal decision now final