WO1999045263A1 - Dispositif de recyclage des gaz d'echappement dans un moteur a combustion interne - Google Patents

Dispositif de recyclage des gaz d'echappement dans un moteur a combustion interne Download PDF

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Publication number
WO1999045263A1
WO1999045263A1 PCT/EP1999/001400 EP9901400W WO9945263A1 WO 1999045263 A1 WO1999045263 A1 WO 1999045263A1 EP 9901400 W EP9901400 W EP 9901400W WO 9945263 A1 WO9945263 A1 WO 9945263A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
flow
recirculated exhaust
combustion engine
internal combustion
Prior art date
Application number
PCT/EP1999/001400
Other languages
German (de)
English (en)
Inventor
Helmut Neuschwander
Original Assignee
Filterwerk Mann+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 Filterwerk Mann+Hummel Gmbh filed Critical Filterwerk Mann+Hummel Gmbh
Priority to EP99910327A priority Critical patent/EP1032758A1/fr
Publication of WO1999045263A1 publication Critical patent/WO1999045263A1/fr

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
    • 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
    • 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
    • F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
    • 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

Definitions

  • the invention relates to a device for recycling exhaust gases in an internal combustion engine according to the preamble of the main claim.
  • the invention has for its object to develop a device for recirculating exhaust gases in an internal combustion engine according to the type specified in such a way that optimal temperature and / or flow conditions can be achieved at the point of introduction of the recirculated exhaust gas.
  • the device according to the invention is advantageously embodied as a further development of the generic type, in which a predeterminable amount of recirculated exhaust gas is introduced behind a throttle valve for the return of exhaust gases into the intake duct of the internal combustion engine.
  • the inlet point on the intake duct contains an annular duct which is guided around the tubular suction duct and has openings to the intake duct through which the recirculated gas can flow in substantially radially.
  • a number of flow bodies are arranged in the ring channel, which move in rotation in the ring channel around the axis of the suction channel.
  • the flow bodies are advantageously designed as cylinders or as ribs.
  • the flow bodies are arranged at predetermined intervals on a circular element which rotates about the axis of the intake duct.
  • a high return rate of the exhaust gas can be achieved in a simple manner, since only a small flow resistance occurs due to a deflection of the exhaust gas.
  • the angle of inflow is constantly changed by the rotational movement of the cylinders, whereby an even distribution of the recirculated exhaust gas is achieved.
  • the mixture is swirled in order to achieve a relatively homogeneous mixture.
  • the bearing point of the circular element as a rotating body can be located outside in the ring channel as well as in the center.
  • a flow body is arranged in the inflow region of the recirculated exhaust gas in such a way that the recirculated exhaust gas branches into the ring channel in two directions.
  • the previously described annular channel can be offset in the direction of the inflow area such that it is wider in the inflow area and narrower at the opposite end.
  • a perforated plate can also be arranged between the ring channel and the intake pipe for better mixing while accepting a higher flow resistance.
  • the annular channel is formed by a space between an insert and the intake pipe and the recirculated exhaust gas is introduced through an annular gap at the end of the space.
  • the annular gap and / or the ring channel can also be formed in a simple manner between the insert and an intermediate piece in the intake pipe, the intermediate piece being inserted into the intake pipe via appropriate seals.
  • the introduction point is arranged spatially separate, in particular from the throttle valve, in the intake pipe and the insert and / or the intermediate piece is made of a heat-insulating material such as glass ceramic or ceramic or porcelain shaped.
  • Figure 2 shows a cross section along the axis I-1 of Figure 1;
  • FIG. 3 shows a longitudinal section through an intake duct with an introduction of recirculated exhaust gas via a branching flow body
  • FIG. 5 shows a longitudinal section through an intake duct with an introduction of recirculated exhaust gas through a perforated plate
  • Figure 8 shows a cross section through a further embodiment of an annular gap.
  • FIG. 1 shows an intake pipe 1 of an intake duct for an internal combustion engine in the vicinity of the throttle valve (not shown here).
  • fresh air flows according to arrow 2 through an inlet point 3 for recirculated exhaust gas from the internal combustion engine and then flows as a mixture according to arrow 4 to the cylinder block of the internal combustion engine.
  • FIG. 1 shows a more detailed view to explain the function of the device according to FIG. 1. It can be seen from this that the recirculated exhaust gas flows into the introduction point 3 according to arrow 7 and is distributed as 7a and 7b around the cylinders 6 present in each case.
  • the cylinders 6 rotate according to arrow 8, so that a continuous, low-drag mixing of the recirculated exhaust gas with the fresh air in the intake pipe 1, which is supported by the rotation, occurs, whereby the temperature increase at the inlet point 3 can also be kept low.
  • the recirculated exhaust gas according to arrows 7, 7a and 7b meets a flow body 10 at the introduction point 3 which leads to a branching of the flow 7 on both sides and then flows laterally into the intake pipe 1.
  • the ring channel 9 is offset here from the center of the intake pipe 1, so that a wide ring channel 9 is formed near the flow body 10 and a relatively narrow ring channel is formed at the other end.
  • the introduction point 3 with the annular channel 9 is formed in an insert 11 in an extension of the exemplary embodiment according to FIGS. 3 and 4, the recirculated exhaust gas being deflected here according to the arrows 7a and 7b and through a perforated plate 12 is passed into the intake pipe 1 (arrows 13).
  • Exemplary embodiments according to FIG. 7 and FIG. 8 each show a device according to the invention which, in addition to the insert 11, also has an intermediate piece 14.
  • the inlet point 3 for the recirculated exhaust gas is formed here by an annular gap 15 (FIG. 7) or 16 (FIG. 8), which connects to the respective annular channel 9 and through which the exhaust gas can be introduced into the fresh air stream in the intake pipe 1.
  • the intermediate piece 14 and / or the insert 11 according to FIGS. 5 to 8 can, for example, be made of a heat-insulating material, such as glass O

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

L'invention concerne un dispositif de recyclage des gaz d'échappement dans un moteur à combustion interne, avec lequel les gaz d'échappement recyclés sont introduits dans le canal d'admission du moteur à combustion interne. La zone d'introduction (3) comporte, au niveau du canal d'admission, un canal annulaire (9) qui entoure le canal d'admission (1) tubulaire et présente des ouvertures donnant sur le tuyau d'admission (1), par lesquels les gaz d'admission recyclés peuvent pénétrer sensiblement radialement. Dans ledit canal circulaire (9) se trouvent des corps d'écoulement (6), des passages annulaires (15; 16) ou bien une tôle perforée (12), par lesquels les gaz d'échappement s'écoulent dans le courant d'air frais, dans le tuyau d'admission (1).
PCT/EP1999/001400 1998-03-07 1999-03-04 Dispositif de recyclage des gaz d'echappement dans un moteur a combustion interne WO1999045263A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99910327A EP1032758A1 (fr) 1998-03-07 1999-03-04 Dispositif de recyclage des gaz d'echappement dans un moteur a combustion interne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19809862A DE19809862A1 (de) 1998-03-07 1998-03-07 Vorrichtung zur Rückführung von Abgasen bei einem Verbrennungsmotor
DE19809862.6 1998-03-07

Publications (1)

Publication Number Publication Date
WO1999045263A1 true WO1999045263A1 (fr) 1999-09-10

Family

ID=7860088

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/001400 WO1999045263A1 (fr) 1998-03-07 1999-03-04 Dispositif de recyclage des gaz d'echappement dans un moteur a combustion interne

Country Status (3)

Country Link
EP (1) EP1032758A1 (fr)
DE (1) DE19809862A1 (fr)
WO (1) WO1999045263A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009156264A (ja) * 2007-12-26 2009-07-16 Toyota Motor Engineering & Manufacturing North America Inc 排気ガス再循環装置
WO2015055270A1 (fr) * 2013-10-15 2015-04-23 Motorenfabrik Hatz Gmbh & Co. Kg Dispositif de mélange pour la recirculation de gaz d'échappement

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60018041T2 (de) * 2000-05-05 2005-07-28 Siemens Ag Verfahren und Vorrichtung zur Rückführung von Abgas in den Ansaugluftstrom
FR2871530B1 (fr) * 2004-06-11 2009-01-16 Renault Sas Dispositif et procede perfectionnes de recyclage de gaz brules
US7568340B2 (en) * 2006-05-24 2009-08-04 Honeywell International, Inc. Exhaust gas recirculation mixer
WO2009068181A1 (fr) * 2007-11-28 2009-06-04 Borgwarner Inc. Turbocompresseur
FR2939478B1 (fr) * 2008-12-04 2014-10-24 Mann & Hummel Gmbh Moteur a combustion interne equipe d'un turbocompresseur de suralimentation ainsi que d'un circuit de recyclage des gaz d'echappement
US20120227399A1 (en) * 2011-03-11 2012-09-13 International Engine Intellectual Property Company, Llc In-flow air injection housing
US8915081B2 (en) * 2011-04-13 2014-12-23 GM Global Technology Operations LLC Internal combustion engine
DE102012005225A1 (de) * 2012-03-15 2013-09-19 Volkswagen Aktiengesellschaft Vorrichtung zum zusätzlichen Verdichten der Ladeluft einer Brennkraftmaschine
JP6056748B2 (ja) * 2013-12-20 2017-01-11 トヨタ自動車株式会社 過給エンジンのｅｇｒシステム
DE102014009416A1 (de) * 2014-06-24 2015-12-24 Man Truck & Bus Ag Mischvorrichtung zur Ladeluftzuführung und Abgasrückführung
FR3033597B1 (fr) * 2015-03-11 2018-09-07 Renault S.A.S Connecteur d'entree de turbocompresseur avec diffuseur de gaz egr
CN109751154A (zh) * 2018-12-05 2019-05-14 一汽解放汽车有限公司 一种气体发动机废气再循环系统
US11225936B1 (en) * 2021-02-24 2022-01-18 Ford Global Technologies, Llc Exhaust gas recirculation system for a vehicle engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012533A1 (fr) * 1978-11-23 1980-06-25 Secretary of State for Industry in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland Système pour augmenter la température du mélange air/carburant alimentant un moteur à combustion interne
DE3106588A1 (de) * 1981-02-21 1982-09-23 Daimler-Benz Ag, 7000 Stuttgart "anschluss einer abgasrueckfuehrungsleitung"
EP0128299A1 (fr) 1983-04-11 1984-12-19 August, Paul, Dipl.-Ing. Dr. Dispositif pour l'introduction de courants de gaz additionnel dans la conduite d'admission d'un moteur à combustion interne à compression d'un mélange air-combustible
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
EP0768462A1 (fr) * 1995-10-13 1997-04-16 Magneti Marelli France Diffuseur annulaire de recyclage de gaz carburés, pour moteur à combustion interne
DE19645280A1 (de) * 1995-11-11 1997-05-15 Volkswagen Ag Vorrichtung zum Einleiten von zusätzlichen Gasströmen in den Ansaugkanal einer Brennkraftmaschine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9316647U1 (de) * 1993-10-30 1994-01-27 Pierburg Gmbh, 41460 Neuss Luftansaugrohr für Brennkraftmaschinen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012533A1 (fr) * 1978-11-23 1980-06-25 Secretary of State for Industry in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland Système pour augmenter la température du mélange air/carburant alimentant un moteur à combustion interne
DE3106588A1 (de) * 1981-02-21 1982-09-23 Daimler-Benz Ag, 7000 Stuttgart "anschluss einer abgasrueckfuehrungsleitung"
EP0128299A1 (fr) 1983-04-11 1984-12-19 August, Paul, Dipl.-Ing. Dr. Dispositif pour l'introduction de courants de gaz additionnel dans la conduite d'admission d'un moteur à combustion interne à compression d'un mélange air-combustible
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
EP0768462A1 (fr) * 1995-10-13 1997-04-16 Magneti Marelli France Diffuseur annulaire de recyclage de gaz carburés, pour moteur à combustion interne
DE19645280A1 (de) * 1995-11-11 1997-05-15 Volkswagen Ag Vorrichtung zum Einleiten von zusätzlichen Gasströmen in den Ansaugkanal einer Brennkraftmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009156264A (ja) * 2007-12-26 2009-07-16 Toyota Motor Engineering & Manufacturing North America Inc 排気ガス再循環装置
WO2015055270A1 (fr) * 2013-10-15 2015-04-23 Motorenfabrik Hatz Gmbh & Co. Kg Dispositif de mélange pour la recirculation de gaz d'échappement

Also Published As

Publication number Publication date
EP1032758A1 (fr) 2000-09-06
DE19809862A1 (de) 1999-09-09

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