DE102004021386A1 - Combustion engine with exhaust gas recirculation e.g. for recycling exhaust gases, has internal-combustion engine load air supplying load air line, - Google Patents
Combustion engine with exhaust gas recirculation e.g. for recycling exhaust gases, has internal-combustion engine load air supplying load air line, Download PDFInfo
- Publication number
- DE102004021386A1 DE102004021386A1 DE102004021386A DE102004021386A DE102004021386A1 DE 102004021386 A1 DE102004021386 A1 DE 102004021386A1 DE 102004021386 A DE102004021386 A DE 102004021386A DE 102004021386 A DE102004021386 A DE 102004021386A DE 102004021386 A1 DE102004021386 A1 DE 102004021386A1
- Authority
- DE
- Germany
- Prior art keywords
- line
- combustion engine
- turbine
- exhaust gas
- internal combustion
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0412—Multiple heat exchangers arranged in parallel or in series
-
- 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
- F02B37/007—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in parallel, e.g. at least one pump supplying alternatively
-
- 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
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
- F02B37/164—Control of the pumps by bypassing charging air the bypassed air being used in an auxiliary apparatus, e.g. in an air turbine
-
- 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
-
- 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
- F02M26/02—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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Supercharger (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Brennkraftmaschine mit Abgasrückführung nach der im Oberbegriff von Anspruch 1 näher definierten Art.The The invention relates to an internal combustion engine with exhaust gas recirculation the type defined in the preamble of claim 1 in more detail.
Eine
gattungsgemäße Brennkraftmaschine ist
aus der
Gemäß der
Aus
der
Es ist Aufgabe der vorliegenden Erfindung, eine Brennkraftmaschine mit Abgasrückführung zu schaffen, bei welcher auch in ungünstigen Betriebssituationen eine hohe Abgasmenge in die Ladeluftleitung rückgeführt werden kann und ein zusätzlicher Nutzen für die Brennkraftmaschine gegeben ist.It Object of the present invention, an internal combustion engine to create with exhaust gas recirculation in which also in unfavorable Operating situations a high amount of exhaust gas in the charge air line be returned can and an additional benefit for the Internal combustion engine is given.
Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention this Problem solved by the features mentioned in claim 1.
Dadurch, dass die in der Abzweigleitung angeordnete Turbine einen Verdichter antreibt, der dem Luftpresser verdichtete Luft zuführt, ergibt sich ein doppelter Nutzen dieser zusätzlichen Turbine. Diese weist nämlich einen geringeren effektiven Querschnitt als die Abgasleitung auf und erzeugt somit einen Aufstaudruck in der Abgasleitung, der in annähernd sämtlichen Betriebszuständen der Brennkraftmaschine höher ist als der Druck in der Ladeluftleitung, so dass, insbesondere auch bei niedrigen Drehzahlen, eine größere Abgasmenge rückgeführt werden kann. Gerade bei niedriger Drehzahl ist es bei bekannten Lösungen nämlich häufig schwierig, eine ausreichende Abgasmenge in die Ladeluftleitung zu fördern. In diesem Zusammenhang meint die Bezeichnung „effektiver Querschnitt" den dem Abgas zur Verfügung stehenden freien Querschnitt.Thereby, that arranged in the branch line turbine a compressor which supplies compressed air to the air compressor results a double benefit of this additional turbine. This points namely a smaller effective cross-section than the exhaust pipe and thus generates a back pressure in the exhaust pipe, which in nearly all operating conditions the internal combustion engine higher is considered the pressure in the charge air duct, so that, in particular even at low speeds, a larger amount of exhaust gas to be recycled can. Especially at low speed, it is often difficult in known solutions, to promote a sufficient amount of exhaust gas in the charge air line. In In this context, the term "effective cross section" means the exhaust gas for disposal standing free cross section.
Neben der Funktion als Aufstauelement dient die Turbine zum Antrieb des Verdichters, der den Luftpresser mit vorverdichteter Luft versorgt und somit ohne einen erheblich erhöhten Aufwand eine Steigerung der geförderten Luftmenge und eine Erhöhung des Betriebsdrucks des Luftpressers ermöglicht. Vorteilhafterweise ist dies auch dann möglich, wenn die Drehzahl der Brennkraftmaschine und des Luftpressers und somit auch das mögliche Fördervolumen desselben gering sind. Dabei ist eine hohe Drehzahl der in der Abzweigleitung angeordneten Turbine erzielbar und somit eine entsprechend hohe Drehzahl des den Luftpresser versorgenden Verdichters möglich. Bei der Nutzung der Abgasenergie zum Antrieb des dem Luftpresser verdichtete Luft zuführenden Verdichters ist vorteilhafterweise kein Energieverlust gegeben.Next the function as Aufstauelement the turbine is used to drive the Compressor that supplies the air compressor with pre-compressed air and thus without a significantly increased effort an increase the subsidized Air quantity and an increase the operating pressure of the air compressor allows. advantageously, this is possible even if the speed of the internal combustion engine and the air compressor and thus also the possible delivery same are small. There is a high speed in the branch line arranged turbine achievable and thus a correspondingly high speed of the compressor supplying the air compressor possible. When using the Exhaust gas energy to drive the air compressor compressed air feeding Compressor is advantageously no energy loss.
Wenn in einer vorteilhaften Ausgestaltung der Erfindung die Abzweigleitung in Strömungsrichtung vor der Turbine des Abgasturboladers in die Abgasleitung mündet, so ist auch dann eine Versorgung der Turbine des Abgasturboladers gewährleistet, wenn das in der Abgasleitung vor der Turbine des Abgasturboladers angeordnete Drosselelement sich in seiner Schließstellung oder annähernd in seiner Schließstellung befindet.If in an advantageous embodiment of the invention, the branch line in the flow direction before the turbine of the exhaust gas turbocharger flows into the exhaust pipe, so is ensured even then a supply of the turbine of the exhaust gas turbocharger when arranged in the exhaust pipe in front of the turbine of the exhaust gas turbocharger Throttle element in its closed position or approximately in its closed position located.
Ideale Druckverhältnisse ergeben sich, wenn die Abzweigleitung an derselben Stelle wie die Abgasrückführleitung von der Abgasleitung abzweigt.ideal pressure conditions arise when the branch line in the same place as the Exhaust gas recirculation line branches off from the exhaust pipe.
Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den restlichen Unteransprüchen. Nachfolgend sind Ausführungsbeispiele der Erfindung anhand der Zeichnung prinzipmäßig dargestellt.Further yield advantageous embodiments and refinements of the invention from the remaining subclaims. Below are exemplary embodiments of the invention shown in principle with reference to the drawing.
Dabei zeigen:there demonstrate:
Die
Brennkraftmaschine
Von
der Abgasleitung
In
der Abgasleitung
Des
weiteren zweigt von der Abgasleitung
In
Strömungsrichtung
nach dem Verdichter
Neben
dem Antrieb des Verdichters
Um
die Abzweigleitung
Auch
nach der zweiten Turbine
Bei
der in
Eine
weitere Ausführungsform
der Brennkraftmaschine
Solche
Versorger sind durch den Kasten
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004021386A DE102004021386A1 (en) | 2004-04-30 | 2004-04-30 | Combustion engine with exhaust gas recirculation e.g. for recycling exhaust gases, has internal-combustion engine load air supplying load air line, |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004021386A DE102004021386A1 (en) | 2004-04-30 | 2004-04-30 | Combustion engine with exhaust gas recirculation e.g. for recycling exhaust gases, has internal-combustion engine load air supplying load air line, |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004021386A1 true DE102004021386A1 (en) | 2005-11-17 |
Family
ID=35160397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004021386A Withdrawn DE102004021386A1 (en) | 2004-04-30 | 2004-04-30 | Combustion engine with exhaust gas recirculation e.g. for recycling exhaust gases, has internal-combustion engine load air supplying load air line, |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004021386A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7870718B2 (en) * | 2007-11-14 | 2011-01-18 | General Electric Company | Purge system for an exhaust gas recirculation system |
DE102006057489B4 (en) * | 2006-12-06 | 2014-07-10 | Audi Ag | Internal combustion engine and method for operating an internal combustion engine |
DE102006057488B4 (en) * | 2006-12-06 | 2018-02-08 | Audi Ag | Internal combustion engine and method for operating an internal combustion engine |
US11022055B2 (en) | 2015-06-23 | 2021-06-01 | Volvo Truck Corporation | Internal combustion engine system for exhaust gas recovery |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4312462A1 (en) * | 1993-04-16 | 1994-10-20 | Mak Maschinenbau Krupp | Internal combustion engine with exhaust gas recirculation |
DE10239110A1 (en) * | 2002-08-27 | 2004-03-18 | Caterpillar Motoren Gmbh & Co. Kg | Charging system for internal combustion engine has part volume of air produced by additional smaller exhaust gas turbocharger or external compressor drawn in from air receiver, compressed, and fed to compressed air accumulator |
-
2004
- 2004-04-30 DE DE102004021386A patent/DE102004021386A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4312462A1 (en) * | 1993-04-16 | 1994-10-20 | Mak Maschinenbau Krupp | Internal combustion engine with exhaust gas recirculation |
DE10239110A1 (en) * | 2002-08-27 | 2004-03-18 | Caterpillar Motoren Gmbh & Co. Kg | Charging system for internal combustion engine has part volume of air produced by additional smaller exhaust gas turbocharger or external compressor drawn in from air receiver, compressed, and fed to compressed air accumulator |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006057489B4 (en) * | 2006-12-06 | 2014-07-10 | Audi Ag | Internal combustion engine and method for operating an internal combustion engine |
DE102006057488B4 (en) * | 2006-12-06 | 2018-02-08 | Audi Ag | Internal combustion engine and method for operating an internal combustion engine |
US7870718B2 (en) * | 2007-11-14 | 2011-01-18 | General Electric Company | Purge system for an exhaust gas recirculation system |
US11022055B2 (en) | 2015-06-23 | 2021-06-01 | Volvo Truck Corporation | Internal combustion engine system for exhaust gas recovery |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8120 | Willingness to grant licences paragraph 23 | ||
8139 | Disposal/non-payment of the annual fee |