EP2331803A1 - Zweistufig gekühltes abgasrückführsystem - Google Patents
Zweistufig gekühltes abgasrückführsystemInfo
- Publication number
- EP2331803A1 EP2331803A1 EP09778787A EP09778787A EP2331803A1 EP 2331803 A1 EP2331803 A1 EP 2331803A1 EP 09778787 A EP09778787 A EP 09778787A EP 09778787 A EP09778787 A EP 09778787A EP 2331803 A1 EP2331803 A1 EP 2331803A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- stage
- line
- gas recirculation
- exhaust
- 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
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
- F02M26/02—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
- F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
- F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust 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
- F02M26/24—Layout, e.g. schematics with two or more coolers
-
- 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
- F02M26/44—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 a main EGR passage is branched into multiple passages
-
- 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
- F02M26/38—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in parallel
-
- 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
- F02M26/39—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in series
-
- 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
-
- 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
- F02M26/52—Systems for actuating EGR valves
- F02M26/59—Systems for actuating EGR valves using positive pressure actuators; Check valves therefor
Definitions
- the invention relates to a device for the cooled recirculation of exhaust gas of an internal combustion engine charged by means of an exhaust gas turbocharger, wherein the internal combustion engine has a fresh gas system and an exhaust system, which are connected via an exhaust gas recirculation line with two-stage exhaust gas cooler.
- an exhaust gas recirculation line branches off from the exhaust pipe behind the turbine of an exhaust gas turbocharger and via its own compressor, the recirculated exhaust gas is raised to a higher pressure level and introduced into the fresh air line behind a charge air cooler.
- the invention has for its object to provide a device with which a simple amount of sufficient exhaust gas can be recycled.
- the exhaust gas recirculation line is connected to an exhaust manifold of the exhaust system in the flow direction in front of the turbine of the exhaust gas turbocharger that in the exhaust gas recirculation line before the first stage of the exhaust gas cooler, an exhaust gas recirculation valve is turned on and that in a continuation line to the second stage of the exhaust gas cooler Check valve is used.
- This embodiment eliminates the need for a complex internal compressor for the recirculated exhaust gas, and the use of the non-return valve makes it possible to control the pressure pulsations prevailing in the exhaust system. Used position sufficient exhaust gas recirculation rate.
- An essential aspect for achieving the required return rates is the arrangement of the check valve between the first stage of the exhaust gas cooler and the second stage of the exhaust gas cooler.
- the exhaust gas recirculation line to the first stage of the exhaust gas cooler is formed in two columns with two switched exhaust gas recirculation valves. Together with the two-flow design of the first stage of the exhaust gas cooler and also the continuation line with an associated non-return valve provided in a further embodiment, small volumes are realized up to the check valves, which are used to maintain and exploit the pulsations in the exhaust gas flow. This effect is exploited even further when the exhaust manifold, also designed in a double-flow, each with an equal number of adjacent cylinders and separate entry into the turbine of the exhaust gas turbocharger is connected. As a result, pulsations in the exhaust gas flow are selectively continued to the check valves.
- the washersleitun- be merged behind the check valves to a single-flow line and this line opens while flowing through the second stage of the exhaust gas cooler in the fresh gas line of the internal combustion engine.
- An internal combustion engine shown schematically in the exemplary embodiment is a six-cylinder, self-igniting internal combustion engine in a series construction, which has a fresh gas system and an exhaust system.
- the fresh gas system has a charge air line 2, which connects all intake ports of the individual cylinders with each other and via a charge air cooler 3 to the compressor 4 of an exhaust gas turbocharger 5.
- the associated turbine 6 of the exhaust gas turbocharger 5 is driven by the exhaust gases of the internal combustion engine, the exhaust gases from the exhaust ports in the cylinder head of the internal combustion engine 1 via exhaust manifolds 7 a, 7 b are led to two separate inlets into the turbine 6.
- the two exhaust manifolds 7a, 7b are each associated with three adjacent cylinders of the internal combustion engine.
- Exhaust gas recirculation lines 8a, 8b branch off from the exhaust manifolds 7a, 7b and remove exhaust gas from the exhaust manifolds 7a, 7b and via exhaust recirculation valves 9a, 9b respectively connected to exhaust gas recirculation lines 9a, 9b of the first stage 10a, 10b of a two-stage exhaust gas cooler. From the respective first stage 10a, 10b of the exhaust gas cooler, the cooled exhaust gas passes via check valves 11a, 11b inserted into continuation lines 12a, 12b directly behind the first stage 10a, 10b into a single-flow return line 13.
- the return line 13 forwards the recirculated exhaust gas over the second stage 14 of the exhaust gas
- the first stage 10a, 10b of the exhaust gas cooler is, like the second stage 14, water-cooled, but it can also be provided, in particular to cool the second stage with cooling air.
- the first stage 10a, 10b cools the exhaust gas to temperatures ⁇ 180 ° C. and the second stage cools to a temperature in the range of 70 ° C. or lower, depending on the temperature of the cooling water of the low-temperature circuit.
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)
- Supercharger (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008050368A DE102008050368A1 (de) | 2008-10-02 | 2008-10-02 | Zweistufig gekühltes Abgasrückführsystem |
PCT/EP2009/007033 WO2010037540A1 (de) | 2008-10-02 | 2009-09-30 | Zweistufig gekühltes abgasrückführsystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2331803A1 true EP2331803A1 (de) | 2011-06-15 |
EP2331803B1 EP2331803B1 (de) | 2012-11-21 |
Family
ID=41343484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09778787A Not-in-force EP2331803B1 (de) | 2008-10-02 | 2009-09-30 | Zweistufig gekühltes abgasrückführsystem |
Country Status (5)
Country | Link |
---|---|
US (1) | US8991369B2 (de) |
EP (1) | EP2331803B1 (de) |
DE (1) | DE102008050368A1 (de) |
ES (1) | ES2402136T3 (de) |
WO (1) | WO2010037540A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010014843B4 (de) * | 2010-04-13 | 2020-06-25 | Pierburg Gmbh | Abgaskühlmodul für eine Verbrennungskraftmaschine |
DE102010054644B4 (de) | 2010-12-15 | 2012-12-27 | Pierburg Gmbh | Abgasrückführvorrichtung für eine Verbrennungskraftmaschine |
AT511604B1 (de) * | 2011-10-06 | 2013-01-15 | Avl List Gmbh | Brennkraftmaschine mit einem einlassstrang |
US10495035B2 (en) * | 2017-02-07 | 2019-12-03 | Southwest Research Institute | Dedicated exhaust gas recirculation configuration for reduced EGR and fresh air backflow |
KR20200031905A (ko) * | 2018-09-17 | 2020-03-25 | 현대자동차주식회사 | 엔진 시스템 |
GB2578179B8 (en) * | 2019-03-07 | 2020-12-02 | Cox Powertrain Ltd | Marine motor with a dual-flow exhaust gas recirculation system |
US11686278B2 (en) * | 2020-10-30 | 2023-06-27 | Woodward, Inc. | High efficiency exhaust gas return system |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT2433U1 (de) | 1997-05-28 | 1998-10-27 | Avl List Gmbh | Brennkraftmaschine mit einem abgasturbolader |
DE19734801A1 (de) * | 1997-08-12 | 1999-02-18 | Pierburg Ag | Abgasrückführsystem für eine Brennkraftmaschine mit einem Turbolader |
US6244256B1 (en) | 1999-10-07 | 2001-06-12 | Behr Gmbh & Co. | High-temperature coolant loop for cooled exhaust gas recirculation for internal combustion engines |
DE10018503A1 (de) | 2000-04-14 | 2001-10-18 | Pierburg Ag | Abgasrückführeinrichtung für eine Brennkraftmaschine |
US7287378B2 (en) | 2002-10-21 | 2007-10-30 | International Engine Intellectual Property Company, Llc | Divided exhaust manifold system and method |
DE10351546A1 (de) * | 2002-12-03 | 2004-06-24 | Behr Gmbh & Co. Kg | Vorrichtung zur Kühlung |
JP4168809B2 (ja) * | 2003-04-03 | 2008-10-22 | いすゞ自動車株式会社 | Egr付き排気過給エンジン |
SE526821C2 (sv) * | 2004-03-31 | 2005-11-08 | Scania Cv Ab | Arrangemang för återcirkulation av avgaser hos en överladdad förbränningsmotor |
EP1640594A1 (de) | 2004-09-22 | 2006-03-29 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Aufgeladene Brennkraftmaschine und Verfahren zur Beeinflussung der Menge an zurückgeführtem Abgas einer aufgeladenen Brennkraftmaschine |
US7171957B2 (en) * | 2005-03-03 | 2007-02-06 | International Engine Intellectual Property Company, Llc | Control strategy for expanding diesel HCCI combustion range by lowering intake manifold temperature |
DE102005017905A1 (de) | 2005-04-18 | 2006-10-19 | Behr Gmbh & Co. Kg | Vorrichtung zur gekühlten Rückführung von Abgas einer Brennkraftmaschine eines Kraftfahrzeuges |
EP2076668B1 (de) * | 2006-10-24 | 2010-10-06 | Renault Trucks | Ein abgasrückführungssystem umfassender verbrennungsmotor |
SE0602517L (sv) * | 2006-11-27 | 2008-04-08 | Scania Cv Ab | Arrangemang för återcirkulation av avgaser hos en överladdad förbränningsmotor |
DE102006057488B4 (de) | 2006-12-06 | 2018-02-08 | Audi Ag | Brennkraftmaschine und Verfahren zum Betreiben einer Brennkraftmaschine |
US7299793B1 (en) * | 2007-02-06 | 2007-11-27 | International Engine Intellectual Property Company, Llc | EGR metallic high load diesel oxidation catalyst |
US8375926B2 (en) * | 2010-02-01 | 2013-02-19 | Deere & Company | Moisture purging in an EGR system |
-
2008
- 2008-10-02 DE DE102008050368A patent/DE102008050368A1/de not_active Withdrawn
-
2009
- 2009-09-30 EP EP09778787A patent/EP2331803B1/de not_active Not-in-force
- 2009-09-30 US US12/998,175 patent/US8991369B2/en not_active Expired - Fee Related
- 2009-09-30 WO PCT/EP2009/007033 patent/WO2010037540A1/de active Application Filing
- 2009-09-30 ES ES09778787T patent/ES2402136T3/es active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010037540A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102008050368A1 (de) | 2010-04-08 |
US20110168142A1 (en) | 2011-07-14 |
ES2402136T3 (es) | 2013-04-29 |
US8991369B2 (en) | 2015-03-31 |
EP2331803B1 (de) | 2012-11-21 |
WO2010037540A1 (de) | 2010-04-08 |
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