EP2402585A1 - Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor - Google Patents

Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor Download PDF

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Publication number
EP2402585A1
EP2402585A1 EP11179888A EP11179888A EP2402585A1 EP 2402585 A1 EP2402585 A1 EP 2402585A1 EP 11179888 A EP11179888 A EP 11179888A EP 11179888 A EP11179888 A EP 11179888A EP 2402585 A1 EP2402585 A1 EP 2402585A1
Authority
EP
European Patent Office
Prior art keywords
channel
exhaust gas
coolant
exhaust pipe
pipe
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.)
Granted
Application number
EP11179888A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2402585B1 (de
Inventor
Alexander Fabrizius
Georg Feldhaus
Michael Schmidt
Klaus Irmler
Hans-Ulrich Steurer
Dr. Thierry Marimbordes
Pascal Noiseau
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.)
Mann and Hummel GmbH
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
Mann and Hummel GmbH
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 Behr GmbH and Co KG, Mann and Hummel GmbH filed Critical Behr GmbH and Co KG
Priority to EP11179888.0A priority Critical patent/EP2402585B1/de
Publication of EP2402585A1 publication Critical patent/EP2402585A1/de
Application granted granted Critical
Publication of EP2402585B1 publication Critical patent/EP2402585B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • F02M26/18—Thermal insulation or heat protection
    • 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

Definitions

  • the invention relates to a device for exhaust gas recirculation for an internal combustion engine according to the preamble of claim 1 and claim 12
  • the recirculation of exhaust gas of an internal combustion engine for example, to reduce pollutants is common in commercial vehicles and passenger cars.
  • increasing return rates are required, for example, to over 30%.
  • the recirculated exhaust gas can have very high temperatures, depending on the recirculation rate and the operating state. It is known and customary to provide the inflow of the recirculated exhaust gas into the combustion air in a metal plenum region (intake manifold).
  • a coolant means any suitable fluid circuit of the internal combustion engine or of a motor vehicle as a whole, such as the engine coolant circuit, a separate low-temperature cooling circuit or the refrigeration circuit of an air conditioning system.
  • the coolant is preferably liquid, but in individual cases may also be gaseous or present in several phases.
  • the exhaust pipe is connected to a mounting member, in particular made of metal, wherein the coolant flows through a coolant channel provided on the mounting member.
  • the mounting member can be cooled, so that it is possible to provide the mounting member on non-temperature-resistant structures.
  • Examples include an air-conducting duct made of plastic or an intercooler made of aluminum.
  • Examples of a mounting member according to the invention are a plate, a sheet metal part, milled part or other suitable component, preferably made of aluminum or steel, which is designed for receiving the exhaust pipe on the one hand and for fixing to the air duct on the other.
  • the particular type of determination is arbitrary depending on the requirements, so for example cohesively (soldered, welded, glued, etc.), with fasteners such as screws, rivets, clips, etc. or otherwise.
  • the exhaust pipe in a preferred detail design has a connectable to the mounting member flange.
  • a detachable fixing for example by screwing the flange, possible.
  • the coolant channel also flows around the screws or fixing means, since these represent thermal bridges.
  • Further preferred may be between the Flange and the mounting member to be arranged a seal.
  • the coolant channel is arranged on a side opposite the flange of the mounting member, but can also be provided depending on the requirements on the same page.
  • the coolant channel is designed as a pipe, in particular cohesively connected to the mounting member.
  • a pipeline may have a polygonal or round cross-section.
  • the connection of the coolant channel to a cooling circuit can then be done, for example, by simply attaching hoses on free ends of the pipeline.
  • the coolant channel can also be formed as a one-piece or multi-piece sheet-metal part, in particular materially connected to the mounting member.
  • the region of the mouth of the exhaust pipe is provided on a through-flow of the coolant charge air cooler.
  • the exhaust gas in the radiator area can flow into the charge air, so that a good turbulence and at the same time a further cooling of the exhaust gas or better use of the intercooler is given.
  • the area of the confluence can be arranged on a coolant-side collector member of the intercooler to simplify the construction. With a suitable design of the collector member so can already sufficient cooling of the area the confluence can be achieved by the coolant flows in the collector. Depending on the requirements but can also be provided an additional coolant line for cooling the exhaust pipe.
  • the exhaust pipe opens into the channel upstream of an intercooler.
  • conventional air ducts are often made of plastic to save costs and weight, which previously opposed inflow of hot exhaust gas.
  • the channel is formed at least in the region of the mouth of the exhaust pipe of a plastic.
  • the invention also includes the features of any one of claims 12 to 16, thereby further avoiding excessive local heating of components by the exhaust stream.
  • the object of the invention is also achieved by the characterizing features of claim 12 for an aforementioned device.
  • the exhaust pipe branches in the region of its confluence into a plurality of pipe sections, whereby a particularly uniform distribution of the exhaust gas is achieved.
  • a single pipe section can be provided for the inflow of the exhaust gas into the air.
  • the outflow openings are distributed according to number and / or size over a length of the pipe section, that a hydraulic Ausströmquerites per unit length of the pipe section increases in the flow direction of the exhaust gas.
  • flow obstacles are arranged on at least some of the outflow openings, whereby a swirling achieved and / or a preferred outflow direction can be specified. In this way, a harmful heat input, for example, in the walls of the channel can be additionally avoided.
  • the outflow openings at least predominantly in an outflow angle of between 45 ° and 135 °, in particular between 90 ° and 135 °, are aligned with a main flow direction of the air in the channel.
  • the exhaust gas recirculation apparatus according to the first embodiment of the invention ( Fig. 1 ) comprises a designed as a perforated aluminum plate mounting member 2, which is set over a side opening of a compressed combustion air leading channel 1.
  • the determination of the channel can be made arbitrarily, such as by gluing, positive recording or screwing.
  • the mounting member has a central opening 2a, in which an exhaust pipe 3 made of a temperature-resistant material, such as stainless steel, is introduced, so that the exhaust gas (dashed arrow) flows into the channel for mixing with the combustion air (solid arrows).
  • the position of the inflow into the channel 1 is upstream of a charge air cooler.
  • a flange 4 is provided, by means of which the mounting member 2 and the exhaust pipe 3 are sealingly connected together. For this purpose, there is a seal 5 between flange 4 and mounting member 2.
  • the flange 4 is by means of screws (not shown), the corresponding bolt holes 4a, 2b pass through the flange and mounting member, releasably secured.
  • a coolant channel 6 is provided on it, which rotates the opening 2a.
  • the coolant channel 6 is located on the opposite side of the flange 4 and is formed as a round pipe.
  • the coolant channel 6 consists in the present case of aluminum and is soldered flat on the plate 2. Its (not shown) connection to a coolant circuit can be done by simply attaching hoses on its ends 6a.
  • the coolant circuit may be, for example, the cooling circuit of the internal combustion engine or else a separate or connected low-temperature cooling circuit.
  • the protruding into the intercooler 7 exhaust pipe 3 is formed as a pipe section 12 having a plurality of radially directed exhaust ports 13 for the exhaust gas.
  • the exhaust gas is divided into a plurality of small partial flows, so that local overheating of components of the charge air cooler 7 is avoided.
  • such a pipe section 12 can also lead, while maintaining these advantages, into a simple channel 1, see, for example, the first exemplary embodiment.
  • the pipe section 12 is closed at the end, being received with its closed end in a seal 14 in an opening of the bottom 8 opposite the inlet side 8 '.
  • the pipe section can also protrude freely into the intercooler 7.
  • an angle to the geometric flow direction of the charge air is selected for the outflow 13, which is between 45 ° and 135 °, preferably between 90 ° and 135 °.

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)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)
EP11179888.0A 2009-02-12 2009-02-12 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor Not-in-force EP2402585B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11179888.0A EP2402585B1 (de) 2009-02-12 2009-02-12 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11179888.0A EP2402585B1 (de) 2009-02-12 2009-02-12 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor
EP09290103.2A EP2218897B1 (de) 2009-02-12 2009-02-12 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP09290103.2 Division 2009-02-12
EP09290103.2A Division-Into EP2218897B1 (de) 2009-02-12 2009-02-12 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor
EP09290103.2A Division EP2218897B1 (de) 2009-02-12 2009-02-12 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor

Publications (2)

Publication Number Publication Date
EP2402585A1 true EP2402585A1 (de) 2012-01-04
EP2402585B1 EP2402585B1 (de) 2015-12-16

Family

ID=40848710

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11179888.0A Not-in-force EP2402585B1 (de) 2009-02-12 2009-02-12 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor
EP09290103.2A Not-in-force EP2218897B1 (de) 2009-02-12 2009-02-12 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09290103.2A Not-in-force EP2218897B1 (de) 2009-02-12 2009-02-12 Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor

Country Status (2)

Country Link
US (1) US8534267B2 (pt-PT)
EP (2) EP2402585B1 (pt-PT)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9080694B2 (en) 2011-06-22 2015-07-14 The Boeing Company Bulkhead fitting assembly
US9222447B2 (en) * 2012-07-26 2015-12-29 Ford Global Technologies, Llc Charge air cooler control system and method
DE102014201935A1 (de) 2014-02-04 2015-08-20 Mahle International Gmbh Anordnung zur Abgasrückführung

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3511094A1 (de) * 1985-03-27 1986-10-09 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim Vorrichtung zum zufuehren eines zusatzgasstroms in den ansaugkanal eines ottomotors
DE3916466A1 (de) * 1989-05-20 1990-11-22 Audi Ag Vorrichtung zur abgasrueckfuehrung
JPH1089160A (ja) * 1996-09-18 1998-04-07 Nissan Motor Co Ltd 内燃機関の排気還流装置
EP0881378A2 (en) * 1997-05-30 1998-12-02 Nissan Motor Company, Limited Exhaust gas recirculation system for engine
WO2001006109A1 (de) * 1999-07-15 2001-01-25 Filterwerk Mann+Hummel Gmbh Fluideinleitung für ein heissles fluid in einer hohlraumstruktur
EP1152141A1 (en) * 2000-05-05 2001-11-07 Siemens Aktiengesellschaft Method and apparatus for recirculating exhaust gas into an inlet air stream
WO2003102396A1 (fr) * 2002-06-04 2003-12-11 Valeo Thermique Moteur Module d'echange de chaleur conforme pour envelopper un moteur de vehicule automobile
FR2856746A1 (fr) * 2003-06-25 2004-12-31 Valeo Thermique Moteur Sa Module de refroidissement de l'air de suralimentation et des gaz recircules d'un moteur a combustion interne de vehicule automobile
WO2005001272A1 (fr) * 2003-06-25 2005-01-06 Valeo Thermique Moteur Module de refroidissement de l’air de suralimentation et des gaz d’echappement recircules d’un moteur a combustion interne de vehicule automobile
WO2005071240A1 (fr) * 2003-12-24 2005-08-04 Valeo Thermique Moteur Module d’echange de chaleur pour la regulation de la temperature des gas admis dans un moteur thermique de vehicule automobile
FR2879262A1 (fr) * 2004-12-13 2006-06-16 Renault Sas Repartiteur d'air en matiere plastique pour moteur a combustion interne a recirculation de gaz d'echappement.
EP1882836A1 (en) * 2006-07-27 2008-01-30 International Truck Intellectual Property Company, LLC. Integrated charge air cooler and exhaust gas recirculation mixer
EP1911946A2 (de) * 2006-10-11 2008-04-16 Behr GmbH & Co. KG Vorrichtung zur Ladeluftkühlung für einen Verbrennungsmotor, System mit einer Vorrichtung zur Ladeluftkühlung

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US4134377A (en) * 1977-09-29 1979-01-16 Borg-Warner Corporation Exhaust gas recirculation control valve and heat exchanger
DE3531109A1 (de) 1985-03-18 1987-03-12 Rosenthal Ag Sanitaeres absperr- oder mischventil sowie verfahren und vorrichtung zu seiner herstellung
US5970960A (en) * 1996-09-18 1999-10-26 Nissan Motor Co., Ltd. Exhaust gas recirculation system of internal combustion engine
FR2792968B1 (fr) * 1999-04-29 2001-06-29 Westaflex Automobile Echangeur thermique en plastique et acier destine a etre dispose dans un circuit d'admission d'air d'un moteur, notamment dans un repartiteur comportant deux chambres et element du circuit d'admission d'air d'un moteur
US6293265B1 (en) * 1999-10-04 2001-09-25 Siemens Canada Limited Exhaust gas recirculation system
US6237336B1 (en) * 1999-11-09 2001-05-29 Caterpillar Inc. Exhaust gas recirculation system in an internal combustion engine and method of using same
US6311677B1 (en) * 2000-03-30 2001-11-06 Siemens Canada Limited Engine mounting of an exhaust gas recirculation valve
SE522310C2 (sv) * 2001-03-02 2004-02-03 Volvo Lastvagnar Ab Anordning och förfarande för tillförsel av återcirkulerade avgaser
DE102004019554C5 (de) * 2004-04-22 2014-03-27 Pierburg Gmbh Abgasrückführsystem für eine Verbrennungskraftmaschine
US7036493B1 (en) * 2004-10-08 2006-05-02 General Motors Corporation Intake manifold for an internal combustion engine
JP4609243B2 (ja) * 2005-08-30 2011-01-12 株式会社デンソー 排気ガス再循環装置
US7210469B1 (en) * 2005-10-24 2007-05-01 International Engine Intellectual Property Company, Llc Oxidation catalyst coating in a heat exchanger
US7891345B2 (en) * 2008-08-18 2011-02-22 Caterpillar Inc. EGR system having multiple discharge locations

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3511094A1 (de) * 1985-03-27 1986-10-09 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim Vorrichtung zum zufuehren eines zusatzgasstroms in den ansaugkanal eines ottomotors
DE3916466A1 (de) * 1989-05-20 1990-11-22 Audi Ag Vorrichtung zur abgasrueckfuehrung
JPH1089160A (ja) * 1996-09-18 1998-04-07 Nissan Motor Co Ltd 内燃機関の排気還流装置
EP0881378A2 (en) * 1997-05-30 1998-12-02 Nissan Motor Company, Limited Exhaust gas recirculation system for engine
WO2001006109A1 (de) * 1999-07-15 2001-01-25 Filterwerk Mann+Hummel Gmbh Fluideinleitung für ein heissles fluid in einer hohlraumstruktur
EP1152141A1 (en) * 2000-05-05 2001-11-07 Siemens Aktiengesellschaft Method and apparatus for recirculating exhaust gas into an inlet air stream
WO2003102396A1 (fr) * 2002-06-04 2003-12-11 Valeo Thermique Moteur Module d'echange de chaleur conforme pour envelopper un moteur de vehicule automobile
FR2856746A1 (fr) * 2003-06-25 2004-12-31 Valeo Thermique Moteur Sa Module de refroidissement de l'air de suralimentation et des gaz recircules d'un moteur a combustion interne de vehicule automobile
WO2005001272A1 (fr) * 2003-06-25 2005-01-06 Valeo Thermique Moteur Module de refroidissement de l’air de suralimentation et des gaz d’echappement recircules d’un moteur a combustion interne de vehicule automobile
WO2005071240A1 (fr) * 2003-12-24 2005-08-04 Valeo Thermique Moteur Module d’echange de chaleur pour la regulation de la temperature des gas admis dans un moteur thermique de vehicule automobile
FR2879262A1 (fr) * 2004-12-13 2006-06-16 Renault Sas Repartiteur d'air en matiere plastique pour moteur a combustion interne a recirculation de gaz d'echappement.
EP1882836A1 (en) * 2006-07-27 2008-01-30 International Truck Intellectual Property Company, LLC. Integrated charge air cooler and exhaust gas recirculation mixer
EP1911946A2 (de) * 2006-10-11 2008-04-16 Behr GmbH & Co. KG Vorrichtung zur Ladeluftkühlung für einen Verbrennungsmotor, System mit einer Vorrichtung zur Ladeluftkühlung

Also Published As

Publication number Publication date
EP2218897A1 (de) 2010-08-18
US20100199650A1 (en) 2010-08-12
EP2218897B1 (de) 2014-07-09
US8534267B2 (en) 2013-09-17
EP2402585B1 (de) 2015-12-16

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