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EP1074707A2 - Procédé pour recirculer des gaz d'échappement d'un moteur à pistons à plusieurs cylindres et à turbocompresseur - Google Patents

Procédé pour recirculer des gaz d'échappement d'un moteur à pistons à plusieurs cylindres et à turbocompresseur Download PDF

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Publication number
EP1074707A2
EP1074707A2 EP00115697A EP00115697A EP1074707A2 EP 1074707 A2 EP1074707 A2 EP 1074707A2 EP 00115697 A EP00115697 A EP 00115697A EP 00115697 A EP00115697 A EP 00115697A EP 1074707 A2 EP1074707 A2 EP 1074707A2
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
exhaust
gas recirculation
manifold
cylinder
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
EP00115697A
Other languages
German (de)
English (en)
Other versions
EP1074707A3 (fr
Inventor
Franz Dipl.-Ing. Rammer
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.)
MAN Truck and Bus Osterreich AG
Original Assignee
MAN Steyr AG
Steyr Nutzfahrzeuge 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 MAN Steyr AG, Steyr Nutzfahrzeuge AG filed Critical MAN Steyr AG
Publication of EP1074707A2 publication Critical patent/EP1074707A2/fr
Publication of EP1074707A3 publication Critical patent/EP1074707A3/fr
Ceased 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
    • 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
    • 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
    • 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
    • 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
    • F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
    • 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
    • F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
    • F02M26/43—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine

Definitions

  • the invention relates to a method for exhaust gas recirculation on an exhaust gas turbocharger supercharged multi-cylinder reciprocating internal combustion engine per cylinder at least one inlet valve in one connected to a charge air manifold Inlet duct and at least one exhaust valve in one with an exhaust manifold connected exhaust duct and an exhaust gas recirculation line between the exhaust manifold and has charge air manifold.
  • the invention is based on the following problem. It is known to reduce the exhaust gas emissions to the intake side in order to reduce the NO x emission of internal combustion engines. Exhaust gas is removed from an exhaust pipe and returned to the intake tract of the internal combustion engine concerned. For optimal effect, it is also necessary to cool the recirculated exhaust gas. However, in order to avoid contamination of the compressor and charge air cooler with residues of the exhaust gas in supercharged internal combustion engines, especially those with charge air cooling, the exhaust gas is preferably removed before the turbine, cooled and introduced into the intake tract after the charge air cooler. In the operating map of an internal combustion engine, however, there are many areas in which the average exhaust gas back pressure before the turbine is lower than the average boost pressure after the charge air cooler.
  • Section 3.3 speaks of a donor cylinder concept. This then exists, one cylinder only to use for exhaust gas recirculation and the ejected from this cylinder Exhaust gas via an exhaust gas recirculation line with EGR cooler directly to the charge air manifold return. This solution is not for various reasons sensible, but also not practical.
  • the exhaust gas recirculation must be switched off, for. B. in engine braking mode, but it is also when accelerating from low speeds mandatory for particle reduction to prevent exhaust gas from entering the intake system reached. Precautions must therefore be taken to prevent backflow the exhaust gas z. B. reliably prevent engine braking.
  • This object is according to the invention according to the characterizing part of the claim 1 solved in that the exhaust gas recirculation only during certain operating phases the internal combustion engine is permitted and during such exhaust gas recirculation operating phases only that ejected from a cylinder of a row of cylinders Complete or partial exhaust gas with the set exhaust gas recirculation rate via the exhaust gas recirculation line is returned to the charge air manifold, this exhaust gas recirculation on the other hand prevented outside of these exhaust gas recirculation operating phases and that from exhaust gas exhausted from the cylinder (s) as well as that from the other cylinders is completely supplied to the exhaust gas turbocharger via the exhaust manifold.
  • the method according to the invention is based on the principle that in exhaust gas recirculation operating phases pushing out the piston of a cylinder one
  • the cylinder row of the internal combustion engine is used directly for exhaust gas recirculation is.
  • the method according to the invention comes completely without that Previously necessary, expensive, sensitive and fault-prone EGR flutter valves out.
  • FIG. 1 the individual cylinders of the five-cylinder reciprocating internal combustion engine shown there 1 labeled C1, C2, C3, C4, C5.
  • Each of these cylinders has an inlet duct connected to a charge air manifold 2 at the end 3 arranged in the cylinder head intake valve EV and one at the beginning of one an exhaust manifold 4 connected exhaust duct 5 arranged in the cylinder head Exhaust valve AV on.
  • An exhaust gas turbocharger is designated by 6.
  • Whose exhaust turbine 7 is connected to the exhaust manifold 4 and its compressor 8 promotes charge air preferably via a charge air cooler, not shown in the charge air manifold 2.
  • Fig. 3 the cylinders of a row 1a of the 10-cylinder reciprocating internal combustion engine 1 with C1, C2, C3, C4, C5, the cylinders of the other row 1b with C6, C7, C8, C9, C10.
  • charge air manifold 2 intake ducts 3, Intake valves EV, exhaust valves AV, the exhaust gas turbocharger 6 with exhaust gas turbine 7 and Compressor 8, the exhaust gas recirculation line 9, the EGR cooler 10, the transition area 11, the control flap 12 and the control device 14 with servomotor 13, motor driver part 15 and electronics unit 16, these components correspond in the Area of the row of cylinders 1a that of the internal combustion engine of Fig. 1.
  • An attitude the exhaust gas recirculation rate is not provided here and is also not necessary.
  • An exhaust gas turbocharger 18 is also provided in the area of the second row 1b of cylinders, which is normally identical to that (6) of the first row of cylinders and its Exhaust turbine 19 with an exhaust manifold 20 and its compressor 21 with a charge air manifold 22 is connected.
  • Each cylinder C6, C7, C8, C9, C10 the second row of cylinders 1b also has at the end of each with the charge air manifold 22 connected intake port 23 arranged in the cylinder head Intake valve EV and one at the beginning of each with the exhaust manifold 20 connected Austrawkanales 24 an exhaust valve arranged in the cylinder head AV on.
  • the charge air manifold 22 is located between the EGR cooler 10 and charge air manifold 2 of the first cylinder bank extending section 9 'of Exhaust gas recirculation line 9 via an exhaust gas recirculation line 25 branching off from this in connection.
  • the charge air manifold 22 is therefore in exhaust gas recirculation mode as well as the charge air manifold 2 with ejected from the cylinder C1 and supplied exhaust gas introduced into the exhaust gas recirculation line 9.
  • the exhaust gas recirculation rate can be a maximum of 10% of the total exhaust gas volume in this case.
  • the switchover the control flap 12 from non-EGR mode to EGR mode is carried out by appropriate commands from the control device 14 where appropriate to ensure that both Rows of cylinders 1a, 1b the same amount of recirculated exhaust gas is fed in the exhaust gas recirculation line 25 and the exhaust gas recirculation line section 9 ′ flow control valves to be provided, also by the control device 14, similar to that Control flap 12 are adjustable. If necessary, these flow control valves can also be used as shut-off devices to provide a certain redundancy and the event of a failure of the control of the control flap 12 prevent by not or not completely in the exhaust gas recirculation line 9 blocking position could be brought.
  • FIG. 3 it would be an internal combustion engine with V-arrangement of the rows of cylinders 1a, 1b, each with five or more than five cylinders also possible, each of the two cylinder rows as in the case according to Fig. 1 or 2 shown.
  • the outlet duct would also be 24 of the cylinder C6 is assigned a control flap 12 and a throttle point 17, also the exhaust gas recirculation line 25 connected to the exhaust gas manifold 20 and run it through its own EGR cooler.
  • the control valve 12 of the second cylinder bank 1b would also be a servomotor 13 and a motor driver part 15 and a common electronics unit 16 within the control device 14 assigned.
  • FIG. 4 to 6 are reciprocating piston internal combustion engines 1 based, with two cylinders C1 to C6 (Fig. 4, 5) or C1 to C12 (Fig. 5) Inlet valves EV and two outlet valves AV.
  • the two intake valves EV of each cylinder C1 to C6 and C7 to C12 of each cylinder bank 1 or 1a, 1b in Cylinder head each assigned a common intake port 26 by a Charge air manifold 27 branches.
  • the exhaust valves AV Ratios in the case of one cylinder per cylinder bank, preferably cylinder C1 (Fig. 4, 5) or the cylinders C1 and C7 (Fig. 6), unlike the other cylinders. In these remaining cylinders C2 to C6 (Fig.
  • a control throttle is used for fine adjustment of the exhaust gas recirculation rate 39 provided. This is either in the outlet channel 30 or exit the same installed at the transition to the exhaust manifold 29 and either through the control flap 38 can be actuated or, like the control flap 38, by the control device 14 adjustable or adjustable. Outside of exhaust gas recirculation operating phases Internal combustion engine 1, this control throttle 39 is set to the full passage cross section. In contrast, during the exhaust gas recirculation operating phases, the passage cross section becomes the control throttle 39 to its maximum or in intermediate positions between Maximum and a non-zero minimum.
  • a section running between EGR cooler 34 and transition area 32 33 'of the exhaust gas recirculation line 33 built-in shut-off device 40 and a Transition area 32 provided control member 41 is provided. With the latter it is Exhaust gas leaving the outlet area 42 of the exhaust duct 30 either to the exhaust gas turbocharger 36 and / or the exhaust gas recirculation line 33 can be allocated.
  • Each of the two Organs 40, 41 is by means of a servomotor forming part of the control device 14 43, 45 with associated motor driver part 46, 48, which its commands from a Electronics part 49 receives, operable according to its function.
  • the electronics part 49 is constructed in terms of hardware like that (16) of the other exemplary embodiments and in terms of software as well as data or map for this application switched off.
  • the control member 41 can assume two end positions, namely a shut-off position and an open position (as shown by solid lines).
  • a shut-off position During the exhaust gas recirculation operating phases of the internal combustion engine 1, in which the Exhaust manifold 29 to the transition area 32 or to the exhaust gas recirculation line 33 shut off by the control member 41 and the exhaust gas recirculation line 33 is released due to the shut-off member 40 switched to full passage the exhaust gas discharged from the cylinder C1 into the exhaust ports 30, 31 exclusively introduced into the exhaust gas recirculation line 33, that is, a passage to the exhaust gas manifold 29 prevented.
  • one cylinder C1 and one C7 is one Cylinder bank 1a, 1b of the 12-cylinder V internal combustion engine 1, a control element 50 assigned, which is installed in the transition region 44.
  • Each of these two Control units 50 is with the help of a servomotor 51, which as well as a Motor driver part 52 and an electronic part 53 is part of the control device 14, in two Barrier positions and various intermediate positions can be brought.
  • Any of these Control members 50 consists of a vertical transition between the 32 partition 54 sealed there extending side walls which one end in a bearing 55 is pivotally mounted and the other an arc curved control plate 56 carries, the outer contour of a certain radius the center of bearing 55 follows.
  • the outer contour of this control plate 56 are - for appropriate interaction - adapted counter surfaces at the transition area 44 assigned, where the exhaust gas recirculation line 33 goes out, and where the two mutually adjacent exhaust gas channels 30, 31 open.

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)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Supercharger (AREA)
EP00115697A 1999-08-04 2000-07-21 Procédé pour recirculer des gaz d'échappement d'un moteur à pistons à plusieurs cylindres et à turbocompresseur Ceased EP1074707A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0133999A AT413863B (de) 1999-08-04 1999-08-04 Verfahren zur abgasrückführung an einer mittels abgasturbolader aufgeladenen mehrzylindrigen hubkolbenbrennkraftmaschine
AT133999 1999-08-04

Publications (2)

Publication Number Publication Date
EP1074707A2 true EP1074707A2 (fr) 2001-02-07
EP1074707A3 EP1074707A3 (fr) 2001-09-26

Family

ID=3511766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115697A Ceased EP1074707A3 (fr) 1999-08-04 2000-07-21 Procédé pour recirculer des gaz d'échappement d'un moteur à pistons à plusieurs cylindres et à turbocompresseur

Country Status (4)

Country Link
US (1) US6425381B1 (fr)
EP (1) EP1074707A3 (fr)
JP (1) JP2001065377A (fr)
AT (1) AT413863B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005018221A1 (de) * 2005-04-20 2006-10-26 Daimlerchrysler Ag Brennkraftmaschine mit Abgasrückführung
DE102010033004A1 (de) 2010-07-31 2012-02-02 Daimler Ag Verfahren zum Betrieb einer Brennkraftmaschine
FR3000999A1 (fr) * 2013-01-14 2014-07-18 Peugeot Citroen Automobiles Sa Dispositif de reintroduction de gaz d'echappement a separation de gaz amelioree
FR3007464A1 (fr) * 2013-06-20 2014-12-26 Peugeot Citroen Automobiles Sa Procede et dispositif pour l'optimisation d'un regime transitoire du fonctionnement d'un moteur thermique
WO2021139886A1 (fr) * 2020-01-09 2021-07-15 Pierburg Gmbh Système d'échappement d'un moteur à combustion interne
CN113982765A (zh) * 2020-06-12 2022-01-28 沃尔沃卡车集团 控制内燃发动机中的气缸排气门的控制单元及其中的方法

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WO2011017272A1 (fr) * 2009-08-01 2011-02-10 Electro-Motive Diesel, Inc. Système et appareil de recirculation des gaz d’échappement pour un moteur diesel de locomotive à deux temps et balayage continu
US8561599B2 (en) 2011-02-11 2013-10-22 Southwest Research Institute EGR distributor apparatus for dedicated EGR configuration
US8944034B2 (en) 2011-02-11 2015-02-03 Southwest Research Institute Dedicated EGR control strategy for improved EGR distribution and engine performance
US10253731B2 (en) 2011-03-03 2019-04-09 Ge Global Sourcing Llc Method and systems for exhaust gas control
US20120222659A1 (en) * 2011-03-03 2012-09-06 General Electric Company Methods and systems for an engine
US8904786B2 (en) * 2011-04-13 2014-12-09 GM Global Technology Operations LLC Internal combustion engine
US8555638B2 (en) 2011-04-14 2013-10-15 Caterpillar Inc. Internal combustion engine with improved exhaust manifold
US8903631B2 (en) 2011-06-17 2014-12-02 General Electric Company Methods and systems for exhaust gas recirculation cooler regeneration
US8903632B2 (en) 2011-06-17 2014-12-02 General Electric Company Methods and systems for exhaust gas recirculation cooler regeneration
US8683974B2 (en) 2011-08-29 2014-04-01 Electro-Motive Diesel, Inc. Piston
US9145837B2 (en) * 2011-11-29 2015-09-29 General Electric Company Engine utilizing a plurality of fuels, and a related method thereof
US20130220287A1 (en) * 2012-02-28 2013-08-29 Teoman Uzkan Exhaust system having dedicated egr cylinder connection
US8944036B2 (en) 2012-02-29 2015-02-03 General Electric Company Exhaust gas recirculation in a reciprocating engine with continuously regenerating particulate trap
US8857156B2 (en) 2012-04-27 2014-10-14 General Electric Company Engine utilizing a plurality of control valves, and a related method thereof
US10012153B2 (en) 2012-08-15 2018-07-03 General Electric Company System and method for engine control
US8935917B2 (en) * 2013-01-28 2015-01-20 GM Global Technology Operations LLC Partially integrated exhaust manifold
DE102013006302B4 (de) * 2013-04-12 2022-07-07 Man Energy Solutions Se Aufgeladene Brennkraftmaschine in Baukastenbauform und Baukastensysteme für solche Brennkraftmaschinen sowie Aufladungseinrichtungen
US9410504B2 (en) * 2013-06-20 2016-08-09 Paccar Inc Mixer for pulsed EGR
US20140373528A1 (en) * 2013-06-20 2014-12-25 Paccar Inc Fixed positive displacement egr system
US10233809B2 (en) 2014-09-16 2019-03-19 Southwest Research Institute Apparatus and methods for exhaust gas recirculation for an internal combustion engine powered by a hydrocarbon fuel
US10125726B2 (en) 2015-02-25 2018-11-13 Southwest Research Institute Apparatus and methods for exhaust gas recirculation for an internal combustion engine utilizing at least two hydrocarbon fuels
US9797349B2 (en) 2015-05-21 2017-10-24 Southwest Research Institute Combined steam reformation reactions and water gas shift reactions for on-board hydrogen production in an internal combustion engine
US9657692B2 (en) 2015-09-11 2017-05-23 Southwest Research Institute Internal combustion engine utilizing two independent flow paths to a dedicated exhaust gas recirculation cylinder
US10221798B2 (en) 2015-12-01 2019-03-05 Ge Global Sourcing Llc Method and systems for airflow control
US9874193B2 (en) 2016-06-16 2018-01-23 Southwest Research Institute Dedicated exhaust gas recirculation engine fueling control
US10495035B2 (en) 2017-02-07 2019-12-03 Southwest Research Institute Dedicated exhaust gas recirculation configuration for reduced EGR and fresh air backflow
JP7067080B2 (ja) * 2018-01-23 2022-05-16 マツダ株式会社 多気筒エンジン

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US5121734A (en) * 1989-09-11 1992-06-16 Robert Bosch Gmbh Internal combustion engine
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EP0775817A1 (fr) * 1995-11-21 1997-05-28 MAN Nutzfahrzeuge Aktiengesellschaft Recirculation de gaz d'échappement pour moteurs suralimentés à combustion interne
WO1999040312A1 (fr) * 1998-02-04 1999-08-12 Volvo Lastvagnar Ab Systeme destine a un moteur a combustion

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005018221A1 (de) * 2005-04-20 2006-10-26 Daimlerchrysler Ag Brennkraftmaschine mit Abgasrückführung
DE102010033004A1 (de) 2010-07-31 2012-02-02 Daimler Ag Verfahren zum Betrieb einer Brennkraftmaschine
FR3000999A1 (fr) * 2013-01-14 2014-07-18 Peugeot Citroen Automobiles Sa Dispositif de reintroduction de gaz d'echappement a separation de gaz amelioree
FR3007464A1 (fr) * 2013-06-20 2014-12-26 Peugeot Citroen Automobiles Sa Procede et dispositif pour l'optimisation d'un regime transitoire du fonctionnement d'un moteur thermique
WO2021139886A1 (fr) * 2020-01-09 2021-07-15 Pierburg Gmbh Système d'échappement d'un moteur à combustion interne
CN113982765A (zh) * 2020-06-12 2022-01-28 沃尔沃卡车集团 控制内燃发动机中的气缸排气门的控制单元及其中的方法

Also Published As

Publication number Publication date
US6425381B1 (en) 2002-07-30
ATA133999A (de) 2005-10-15
AT413863B (de) 2006-06-15
EP1074707A3 (fr) 2001-09-26
JP2001065377A (ja) 2001-03-13

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