DE102011077148A1 - Heavy oil operated internal combustion engine for e.g. passenger car, has cylinders whose exhaust gas is delivered to inlet side of engine via pump, where cylinders are equipped with low-sulfur fuel appropriate for exhaust gas recirculation - Google Patents
Heavy oil operated internal combustion engine for e.g. passenger car, has cylinders whose exhaust gas is delivered to inlet side of engine via pump, where cylinders are equipped with low-sulfur fuel appropriate for exhaust gas recirculation Download PDFInfo
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- DE102011077148A1 DE102011077148A1 DE102011077148A DE102011077148A DE102011077148A1 DE 102011077148 A1 DE102011077148 A1 DE 102011077148A1 DE 102011077148 A DE102011077148 A DE 102011077148A DE 102011077148 A DE102011077148 A DE 102011077148A DE 102011077148 A1 DE102011077148 A1 DE 102011077148A1
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- 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
- F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
- F02B47/04—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only
- F02B47/08—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only the substances including exhaust gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
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- 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
- F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
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- 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
- F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
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- 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
- F02M26/34—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with compressors, turbines or the like in the recirculation passage
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- 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
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- 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
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
- F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
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- 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
- F02B45/00—Engines characterised by operating on non-liquid fuels other than gas; Plants including such engines
- F02B45/08—Engines characterised by operating on non-liquid fuels other than gas; Plants including such engines operating on other solid fuels
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- 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
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- 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
- F02M26/08—EGR systems specially adapted for supercharged engines for engines having two or more intake charge compressors or exhaust gas turbines, e.g. a turbocharger combined with an additional compressor
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- 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
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- 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
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- 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
Technisches GebietTechnical area
Die Erfindung bezieht sich auf das Gebiet der aufgeladenen Brennkraftmaschinen. Sie betrifft einen Verbrennungsmotor mit einem ein- oder mehrstufigen Abgasturbolader sowie ein Verfahren zum Betreiben eines derartigen Verbrennungsmotors.The invention relates to the field of supercharged internal combustion engines. It relates to an internal combustion engine with a single or multi-stage exhaust gas turbocharger and a method for operating such an internal combustion engine.
Stand der TechnikState of the art
Abgasrezirkulation (AGR) ist eine bekannte Massnahme zur Reduktion der NOx-Emissionen. Bei kleinen Motoren für PKW und LKW Antrieb gibt es mehrere Ausführungen im kommerziellen Einsatz.Exhaust gas recirculation (EGR) is a known measure to reduce NOx emissions. For small engines for car and truck drive, there are several versions in commercial use.
Bei Grossmotoren ist die Abgasrezirkulation noch nicht allzu verbreitet, da einerseits die Emissionsgrenzen noch nicht so streng sind, wie bei kleineren Motoren, andererseits verschiedene Herausforderungen zu überwinden sind.For large engines, the exhaust gas recirculation is not yet widespread, because on the one hand, the emission limits are not as strict as in smaller engines, on the other hand, various challenges are overcome.
Eine erste Herausforderung ergibt sich aus der Qualität der für den Antrieb verwendeten Brennstoffe. Schiffsmotoren werden häufig mit Schweröl mit hohem Schwefelanteil betrieben. Dies erfordert eine aufwendige Behandlung des Abgases aus den Brennkammern des Verbrennungsmotors bevor es rezirkuliert werden kann. Aus
Eine zweite Herausforderung besteht darin, dass normalerweise bei aufgeladenen Grossmotoren der Druck im Einlassreceiver höher ist, als der Druck im Abgasreceiver. Diese Druckdifferenz muss durch eine Abgasrezirkulations-Pumpe überwunden werden. In der oben erwähnten Patentschrift
Ein alternatives Verfahren ist in
Eine dritte Herausforderung für Marinemotoren sind die je nach Gewässer stark unterschiedlichen Emissionsgrenzen. Die Schiffsbetreiber müssen in der Lage sein, die strengsten Grenzen zu erfüllen. Da aber dies mit stark erhöhten Betriebskosten verbunden ist, müssen die Schiffe auch in der Lage sein, kostengünstig fahren zu können, wo dies durch höhere Emissionsgrenzen erlaubt ist. Ein AGR-System muss dann umschaltbar sein, was gravierende Folgen auf die Auslegung des Aufladesystems mit sich bringt. Lösungen dafür sind sowohl für 1-stufig wie auch für 2-stufig aufgeladenen Motoren in
Kurze Darstellung der ErfindungBrief description of the invention
Die der vorliegenden Erfindung zugrundeliegenden Aufgabe besteht darin, ein mit Schweröl betriebener Verbrennungsmotor mit verminderter Schadstoffemission zu schaffen.The object underlying the present invention is to provide a combustion engine operated with heavy oil with reduced pollutant emission.
Bei einem mit Schweröl betriebenem Verbrennungsmotor mit mehreren Zylindern ist mindestens ein Zylinder auslassseitig von den anderen getrennt oder trennbar und ist mit dem Abgasrezirkulations-Pfad verbunden.In a heavy duty, multi-cylinder engine, at least one cylinder is separate or separable from the others on the exhaust side and is connected to the exhaust gas recirculation path.
In einer ersten erfindungsgemässen Ausführungsform bei einem zweistufig aufgeladenen Verbrennungsmotor führt der Rezirkulationspfad das Abgas aus dem mindestens einen separaten Zylinder zwischen dem Verdichterausgang des Niederdruck-Abgasturboladers und dem Verdichtereintritt des Hochdruck-Abgasturboladers auf die Einlassseite des Verbrennungsmotors zurück.In a first embodiment according to the invention in a two-stage supercharged combustion engine, the recirculation path returns the exhaust gas from the at least one separate cylinder between the compressor outlet of the low-pressure exhaust gas turbocharger and the compressor inlet of the high-pressure exhaust gas turbocharger to the inlet side of the internal combustion engine.
In einer zweiten erfindungsgemässen Ausführungsform, arbeitet dieser mindestens eine Zylinder mit einem Brennstoff, der für Abgasrezirkulation ohne besondere Massnahmen geeignet ist, d. h. z. B. ein schwefelarmes Dieselöl oder ein Gas, während die restlichen Zylinder mit einem beliebigen Brennstoff, insbesondere Schweröl versorgt werden können. Im Abgasrezirkulations-Pfad befindet sich eine Abgasrezirkulations-Pumpe, die elektrisch, mechanisch oder von einer Gasturbine angetrieben werden kann. Das Aufladesystem und der Abgasrezirkulations-Pfad können sonst beliebig konfiguriert werden, insbesondere nach den in
Besonders interessant ist die Kombination dieser beiden Ausführungsformen ebenfalls für die 2-stufige Aufladung. In dieser Konfiguration ist die Funktion der Abgasrezirkulations-Pumpe aus der zweiten Ausführungsform in dem Hochdruck-Abgasturbolader integriert, was sicher ein Kostenvorteil darstellt. Dazu gibt es einen thermodynamischen Vorteil. Wird die Menge rezirkuliertem Abgas von einem ungeteilten Abgasreceiver zum Verdichtereintritt des Hochdruck-Abgasturboladers geführt, muss eine Drosselstelle zur Drucksenkung vorgesehen werden, was ein Energieverlust darstellt. Sind die Abgasreceiver aber erfindungsgemäss getrennt, kann das Gas der Spenderzylinder ungedrosselt zum Verdichtereintritt des Hochdruck-Abgasturboladers geführt werden. Die Spenderzylinder arbeiten dann mit einem reduzierten Gegendruck, d. h. der Drucküberschuss wird nicht gedrosselt, sondern in Kolbenarbeit umgesetzt.Particularly interesting is the combination of these two embodiments also for the 2-stage charging. In this configuration, the function of the exhaust gas recirculation pump of the second embodiment is integrated with the high-pressure exhaust gas turbocharger, which is certainly a cost advantage represents. There is a thermodynamic advantage. If the amount of recirculated exhaust gas is fed from an undivided exhaust gas receiver to the compressor inlet of the high-pressure exhaust gas turbocharger, a throttle point must be provided for reducing the pressure, which represents an energy loss. However, if the exhaust gas receivers are separated according to the invention, the gas of the dispensing cylinder can be fed unthrottled to the compressor inlet of the high-pressure exhaust gas turbocharger. The dispenser cylinders then work with a reduced back pressure, ie the pressure surplus is not throttled, but converted into piston work.
Ausgehend von der letzten Konfiguration kann es von Vorteil sein, im Teillastbetrieb des Verbrennungsmotors den Anschluss des Abgasrezirkulations-Pfades vom Eintritt zu Austritt des Verdichters des Hochdruck-Abgasturboladers zu verschieben. Dadurch erhöht sich der Ladedruck, da der Verdichter des Hochdruck-Abgasturboladers auf Kosten der Kolbenarbeit der Spenderzylinder entlastet wird. Dies ist von Vorteil, wenn der Luftüberschuss in Teillast zu klein ist, um Probleme mit Rauch und thermische Belastung der Zylinder zu beseitigen.Based on the last configuration, it may be advantageous to move the connection of the exhaust gas recirculation path from the inlet to the outlet of the compressor of the high-pressure exhaust gas turbocharger in the partial load operation of the internal combustion engine. This increases the boost pressure, since the compressor of the high-pressure exhaust gas turbocharger is relieved at the expense of the piston work of the donor cylinder. This is advantageous if the excess air at part load is too small to eliminate problems with smoke and thermal stress on the cylinders.
Wird der Motor ohne Abgasrezirkulation betrieben, ist es von Vorteil, wenn alle Zylinder mit dem gleichen Brennstoff arbeiten und das Gas aller Zylinder in die Turboladerturbine geführt wird. Aus diesem Grund können die geteilten Abgasreceiver optional über ein Ventil zusammengeschaltet werden.If the engine is operated without exhaust gas recirculation, it is advantageous if all cylinders work with the same fuel and the gas of all cylinders is fed into the turbocharger turbine. For this reason, the shared exhaust gas receivers can optionally be interconnected via a valve.
Der Vorteil der erfindungsgemässen Ausgestaltung des Verbrennungsmotors ist generell, dass aufwendige Behandlungen des Abgasrezirkulations-Gases nicht notwendig sind. Andererseits ist die Erhöhung der Betriebskosten stark reduziert, im Vergleich zu einer Lösung, bei welcher alle Zylinder mit einem hochwertigeren Brennstoff versorgt werden.The advantage of the inventive design of the internal combustion engine is generally that expensive treatments of the exhaust gas recirculation gas are not necessary. On the other hand, the increase in operating costs is greatly reduced compared to a solution in which all cylinders are supplied with a higher quality fuel.
Darüber hinaus, kann durch Regelung des Gegendruckes bzw. durch Variation der Steuerzeiten der Durchsatz der Spenderzylinder derart eingestellt werden, dass die benötigte AGR-Menge minimiert wird. Bei einem konventionellen Motor mit einem schlechten Brennstoff muss einen Anteil an Luft überspült werden, damit die Abgastemperatur unter den zulässigen Grenzen gehalten wird. Diese überspülte Luft trägt nicht zur NOx-Reduktion bei und würde unnötige Leistung von der AGR-Pumpe verbrauchen. Da der hochwertigere Brennstoff höhere Abgastemperaturen zulässt, ist eine Reduktion der überspülten Luftmenge von Vorteil.In addition, by regulating the backpressure or by varying the control times, the throughput of the dispenser cylinders can be adjusted such that the required amount of EGR is minimized. In a conventional engine with a bad fuel, a portion of air must be flushed over to keep the exhaust temperature below the allowable limits. This oversprayed air does not contribute to NOx reduction and would consume unnecessary power from the EGR pump. Since the higher quality fuel allows higher exhaust gas temperatures, a reduction of the amount of air scavenged is an advantage.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Nachfolgend sind anhand der Figuren Ausführungsbeispiele des erfindungsgemässen Aufladesystems schematisch dargestellt und näher erläutert. In allen Figuren sind gleichwirkende Elemente mit gleichen Bezugszeichen versehen. Es zeigen:Exemplary embodiments of the charging system according to the invention are shown schematically and explained in more detail below with reference to the figures. In all figures, the same elements are provided with the same reference numerals. Show it:
Weg zur Ausführung der ErfindungWay to carry out the invention
Erfindungsgemäss werden die Zylinder, deren Abgase die Turbine antreiben mit Schweröl (HFO) betrieben, während die anderen Zylinder, welche für die Abgasrezirkulation verwendet werden, mit schwefelarmem Treibstoff versorgt werden.According to the invention, the cylinders whose exhaust gases drive the turbine are operated with heavy fuel oil (HFO), while the other cylinders used for exhaust gas recirculation are supplied with low-sulfur fuel.
Zwischen den beiden Kammern im Abgas-Receiver AR kann optional ein Ventil V2 angeordnet sein, welches erlaubt, bei gewissen Betriebszuständen die Abgase aus den ersten und zweiten Zylindergruppen zusammenzuführen, so dass etwa die gesamte Abgasmenge für den Turbinenantrieb zu Verfügung steht. Dies kann insbesondere bei dem Betrieb ohne AGR des Verbrennungsmotors von Vorteil sein. In diesem Fall würde der Abgasrezirkulations-Pfad mittels Ventil V1 abgetrennt.Between the two chambers in the exhaust gas receiver AR may optionally be arranged a valve V2, which allows to merge the exhaust gases from the first and second cylinder groups under certain operating conditions, so that approximately the entire amount of exhaust gas is available for the turbine drive. This can be advantageous in particular during operation without EGR of the internal combustion engine. In this case, the exhaust gas recirculation path would be disconnected by means of valve V1.
Vorteilhafterweise erfolgt die Einspeisung des rückgeführten Abgases aus dem separat für die Abgasrückführung betriebenen Zylinder bei einem zweistufigen Abgasturbolader zwischen den beiden Verdichterstufen. Im Teillastbetrieb kann die Abgasrezirkulation allenfalls davon abweichend optimiert werden, indem die Einspeisung des rückgeführten Abgases aus dem separat für die Abgasrückführung betriebenen Zylinder für diesen Betriebsbereich des Motors nach dem Verdichter des Hochdruck-Abgasturboladers erfolgt.Advantageously, the feed of the recirculated exhaust gas from the cylinder operated separately for the exhaust gas recirculation takes place in a two-stage exhaust gas turbocharger between the two compressor stages. In part-load operation, the exhaust gas recirculation can at most be optimized by the supply of recirculated exhaust gas from the separately operated exhaust gas recirculation cylinder for this operating range of the engine after the compressor of the high-pressure exhaust gas turbocharger.
Als besonders vorteilhaft hat sich herausgestellt, dass der mindestens eine Zylinder dessen Abgase zurückgeführt werden, Ventilsteuerzeiten aufweist, welche einen kleineren Luftdurchsatz zur Folge haben als bei den restlichen Zylindern.It has proven to be particularly advantageous that the at least one cylinder whose exhaust gases are recirculated has valve timing, which results in a smaller air flow rate than in the remaining cylinders.
BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS
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- ARAR
- Luft-ReceiverAir Receivers
- ACAC
- Luft-KühlerAir cooler
- ERHE
- Abgas-ReceiverExhaust Receivers
- EGR-CEGR C
- Abgasrückführungs-KühlerExhaust gas recirculation cooler
- FF
- Brennstoffzufuhrfuel supply
- HFOHFO
- Schweröl (Heavy Fuel Operation)Heavy Oil (Heavy Fuel Operation)
- LSFLSF
- Schwefelarmer Treibstoff (Low Sulfur Fuel)Low sulfur fuel (Low Sulfur Fuel)
- KK
- Verdichtercompressor
- TT
- Turbineturbine
- VV
- VentilValve
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- WO 1994029587 [0004, 0005] WO 1994029587 [0004, 0005]
- DE 4331509 [0006] DE 4331509 [0006]
- EP 2196660 [0007, 0011] EP 2196660 [0007, 0011]
- EP 2196659 [0007, 0011] EP 2196659 [0007, 0011]
Claims (6)
Priority Applications (1)
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DE102011077148A DE102011077148A1 (en) | 2011-06-07 | 2011-06-07 | Heavy oil operated internal combustion engine for e.g. passenger car, has cylinders whose exhaust gas is delivered to inlet side of engine via pump, where cylinders are equipped with low-sulfur fuel appropriate for exhaust gas recirculation |
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DE102011077148A DE102011077148A1 (en) | 2011-06-07 | 2011-06-07 | Heavy oil operated internal combustion engine for e.g. passenger car, has cylinders whose exhaust gas is delivered to inlet side of engine via pump, where cylinders are equipped with low-sulfur fuel appropriate for exhaust gas recirculation |
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DE102011077148A Withdrawn DE102011077148A1 (en) | 2011-06-07 | 2011-06-07 | Heavy oil operated internal combustion engine for e.g. passenger car, has cylinders whose exhaust gas is delivered to inlet side of engine via pump, where cylinders are equipped with low-sulfur fuel appropriate for exhaust gas recirculation |
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Cited By (7)
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FR3009017A1 (en) * | 2013-07-29 | 2015-01-30 | Peugeot Citroen Automobiles Sa | EXHAUST MANIFOLD OF AN INTERNAL COMBUSTION ENGINE |
US11536213B2 (en) | 2021-05-19 | 2022-12-27 | Deere & Company | Engine system with electrified air system components for managing emissions of nitrogen oxides in a work vehicle |
US11572824B2 (en) | 2021-05-13 | 2023-02-07 | Deere & Company | Electrified engine boost components for mitigating engine stalling in a work vehicle |
US11572673B2 (en) | 2021-06-25 | 2023-02-07 | Deere & Company | Work vehicle power system with decoupled engine air system components |
US11591992B2 (en) | 2021-05-05 | 2023-02-28 | Deere & Company | Engine system with air pump for enhanced turbocharger air exchange |
US11846257B2 (en) | 2021-05-03 | 2023-12-19 | Deere & Company | Engine system with reversible exhaust gas recirculation pump for controlling bypass flow |
US11939929B2 (en) | 2021-08-19 | 2024-03-26 | Deere &Company | Engine electrified air system including electric turbocharger and exhaust gas recirculation pump |
Citations (6)
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FR3009017A1 (en) * | 2013-07-29 | 2015-01-30 | Peugeot Citroen Automobiles Sa | EXHAUST MANIFOLD OF AN INTERNAL COMBUSTION ENGINE |
US11846257B2 (en) | 2021-05-03 | 2023-12-19 | Deere & Company | Engine system with reversible exhaust gas recirculation pump for controlling bypass flow |
US11591992B2 (en) | 2021-05-05 | 2023-02-28 | Deere & Company | Engine system with air pump for enhanced turbocharger air exchange |
US11572824B2 (en) | 2021-05-13 | 2023-02-07 | Deere & Company | Electrified engine boost components for mitigating engine stalling in a work vehicle |
US11536213B2 (en) | 2021-05-19 | 2022-12-27 | Deere & Company | Engine system with electrified air system components for managing emissions of nitrogen oxides in a work vehicle |
US11572673B2 (en) | 2021-06-25 | 2023-02-07 | Deere & Company | Work vehicle power system with decoupled engine air system components |
US11939929B2 (en) | 2021-08-19 | 2024-03-26 | Deere &Company | Engine electrified air system including electric turbocharger and exhaust gas recirculation pump |
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