DE102007025179A1 - Internal combustion engine system, particularly in motor vehicle, has internal combustion engine and fresh gas plant for supplying fresh gas to internal combustion engine and exhaust gas plant for discharging exhaust gas - Google Patents
Internal combustion engine system, particularly in motor vehicle, has internal combustion engine and fresh gas plant for supplying fresh gas to internal combustion engine and exhaust gas plant for discharging exhaust gas Download PDFInfo
- Publication number
- DE102007025179A1 DE102007025179A1 DE102007025179A DE102007025179A DE102007025179A1 DE 102007025179 A1 DE102007025179 A1 DE 102007025179A1 DE 102007025179 A DE102007025179 A DE 102007025179A DE 102007025179 A DE102007025179 A DE 102007025179A DE 102007025179 A1 DE102007025179 A1 DE 102007025179A1
- Authority
- DE
- Germany
- Prior art keywords
- fresh gas
- internal combustion
- combustion engine
- valve
- fresh
- 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- Withdrawn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
- 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
- F02B29/08—Modifying distribution valve timing for charging purposes
- F02B29/083—Cyclically operated valves disposed upstream of the cylinder intake valve, controlled by external means
-
- 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
- F02M26/13—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
-
- 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
- F02M26/40—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with timing means in the recirculation passage, e.g. cyclically operating valves or regenerators; with arrangements involving pressure pulsations
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0272—Two or more throttles 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
- F02M26/22—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
-
- 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)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Brennkraftmaschinensystem, insbesondere in einem Kraftfahrzeug.The The present invention relates to an internal combustion engine system, in particular in a motor vehicle.
Üblicherweise umfasst ein Brennkraftmaschinensystem eine Brennkraftmaschine, z. B. einen Dieselmotor oder einen Benzinmotor, eine Frischgasanlage zum Zuführen von Frischgas zur Brennkraftmaschine, eine Abgasanlage zum Abführen von Abgas von der Brennkraftmaschine sowie eine Abgasrückführanlage zum Entnehmen von Abgas aus der Abgasanlage und zum Einleiten des entnommenen Abgases in die Frischgasanlage. Die Abgasrückführung wird durchgeführt, um die Werte für Schadstoffemission und Kraftstoffverbrauch der Brennkraftmaschine zu senken.Usually For example, an internal combustion engine system includes an internal combustion engine, e.g. As a diesel engine or a gasoline engine, a fresh gas system for feeding from fresh gas to the engine, an exhaust system for discharging Exhaust from the internal combustion engine and an exhaust gas recirculation system for removing exhaust gas from the exhaust system and for introducing the removed exhaust gas into the fresh gas system. The exhaust gas recirculation is carried out, around the values for Pollutant emission and fuel consumption of the internal combustion engine to lower.
Zur Realisierung einer Abgasrückführung ist ein Druckgefälle zwischen einer abgasseitigen Entnahmestelle und einer frischgasseitigen Einleitstelle erforderlich. Insbesondere bei aufgeladenen Brennkraftmaschinen kann die Bereitstellung eines ausreichenden Druckgefälles problematisch sein.to Realization of an exhaust gas recirculation is a pressure drop between an exhaust gas outlet and a fresh gas side Entry point required. Especially with supercharged internal combustion engines The provision of a sufficient pressure gradient can be problematic be.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für ein Brennkraftmaschinensystem der eingangs genannten Art eine verbesserte Ausführungsform anzugeben, die sich insbesondere durch eine verbesserte Abgasrückführung auszeichnet.The present invention employs dealing with the problem, for an internal combustion engine system of the type mentioned in an improved embodiment which is characterized in particular by improved exhaust gas recirculation.
Dieses Problem wird erfindungsgemäß durch den Gegenstand des unabhängigen Anspruchs gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This Problem is inventively the subject of the independent Claim solved. Advantageous embodiments are the subject of the dependent Claims.
Die Erfindung beruht auf dem allgemeinen Gedanken, in der Frischgasanlage stromauf und stromab der Einleitstelle jeweils ein Frischgasventil zum Steuern eines durchströmbaren Querschnitts der Frischgasanlage anzuordnen. Mit den beiden beiderseits der Einleitstelle angeordneten Frischgasventilen lassen sich durch entsprechende Ansteuerung der Frischgasventile im Bereich der Einleitstelle Druckschwingungen erzeugen, die relativ große negative Amplituden aufweisen. Hierdurch kann die Druckdifferenz zwischen Einleitstelle und Entnahmestelle gezielt vergrößert und insbesondere auf einen gewünschten Differenzdruckwert eingestellt werden, um eine gewünschte Abgasrückführrate zu realisieren. Desweiteren kann zwischen den beiden Frischgasventilen eine verbesserte Durchmischung zwischen Frischgas und rückgeführten Abgas erreicht werden, was sich vorteilhaft für den Betrieb der Brennkraftmaschine auswirkt.The Invention is based on the general idea, in the fresh gas system upstream and downstream of the discharge point in each case a fresh gas valve for Controlling a permeable Cross section of the fresh gas system to order. With the two on both sides the inlet point arranged fresh gas valves can be through corresponding control of the fresh gas valves in the area of the inlet pressure oscillations produce that relatively large have negative amplitudes. This allows the pressure difference selectively enlarged between the discharge point and the withdrawal point and in particular to a desired Differential pressure value to be set to a desired exhaust gas recirculation rate realize. Furthermore, between the two fresh gas valves an improved mixing between fresh gas and recirculated exhaust gas be achieved, which is advantageous for the operation of the internal combustion engine effect.
Insbesondere kann vorgesehen sein, dass mit Hilfe einer entsprechenden Steuerung beide Frischgasventile zur Erzeugung von Druckschwingungen im Frischgas angesteuert werden. Eben so ist es möglich, mit Hilfe einer entsprechenden Steuerung die beiden Frischgasventile so anzusteuern, dass mit dem einen Frischgasventil Druckschwingungen im Frischgas generiert werden, die mit Hilfe des anderen Frischgasventils durch gezielte Ansteuerung im Bereich der Einleitstelle gezielt verstärkt werden können, um dort besonders große negative Amplituden zu erzeugen. Bei beiden Fällen lassen sich durch Ausnutzung dynamischer Schwingungseffekte vergleichsweise große negative Amplituden in den Druckschwingungen generieren. Diese negativen Amplituden lassen sich zur Erzeugung eines erwünschten Druckgefälles zwischen Entnahmestelle und Einleitstelle verwenden.Especially can be provided that with the help of an appropriate controller both fresh gas valves for generating pressure oscillations in the fresh gas be controlled. So it is possible, with the help of a corresponding Control the two fresh gas valves to control so that with the a fresh gas valve pressure oscillations are generated in the fresh gas, with the help of the other fresh gas valve by targeted control In the area of the discharge point, they can be specifically reinforced to: there especially big ones to produce negative amplitudes. Both cases can be exploited dynamic vibration effects comparatively large negative Generate amplitudes in the pressure oscillations. These negative amplitudes can be used to generate a desired pressure gradient between Use sampling point and discharge point.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus der Zeichnung und aus der zugehörigen Figurenbeschreibung anhand der Zeichnung.Further important features and advantages of the invention will become apparent from the Dependent claims, from the drawing and the associated Description of the figures with reference to the drawing.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It it is understood that the above and the following yet to be explained features not only in the specified combination, but also in other combinations or alone, without to leave the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden in der nachfolgenden Beschreibung näher erläutert.preferred embodiments The invention are illustrated in the drawings and in the following description explained.
Die
einzige
Entsprechend
Die
Frischgasanlage
Die
Abgasanlage
Die
Abgasrückführanlage
Um
die Abgasrückführung zu
verbessern, ist in der Frischgasanlage
Desweiteren
kann die Frischgasanlage
In
der Abgasrückführanlage
Die
Abgasanlage
Zur
Betätigung
der beiden Frischgasventile
Zum
Einstellen einer erwünschten
Abgasrückführrate oder
AGR-Rate kann die
Steuerung
Dabei
kann die Steuerung
Alternativ
ist es ebenso möglich,
die Steuerung
Zumindest
eines der Frischgasventile
Alternativ
kann es sich bei wenigstens einem der Frischgasventile
Zusätzlich oder
optional kann zumindest eines der Frischgasventile
Zusätzlich oder
alternativ kann vorgesehen sein, zumindest eines der Frischgasventile
Zur
Verbesserung bzw. zur Verstärkung
der Abgasrückführung kann
das Rückführventil
Zusätzlich oder
alternativ zum Rückführventil
Bei
einer bevorzugten Ausführungsform kann
vorgesehen sein, die Steuerung
Bei
der in
Vorzugsweise
ist der Leitungskörper
Bei
der hier gezeigten, besonderen Ausführungsform umfasst die Frischgasanlage
Der
Bereich der Frischgasanlage
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007025179A DE102007025179A1 (en) | 2007-02-23 | 2007-05-29 | Internal combustion engine system, particularly in motor vehicle, has internal combustion engine and fresh gas plant for supplying fresh gas to internal combustion engine and exhaust gas plant for discharging exhaust gas |
| PCT/EP2008/055734 WO2008145503A1 (en) | 2007-05-29 | 2008-05-09 | Exhaust gas recirculation system for supercharged internal combustion engine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202007007118.3 | 2007-02-23 | ||
| DE202007007118 | 2007-02-23 | ||
| DE102007025179A DE102007025179A1 (en) | 2007-02-23 | 2007-05-29 | Internal combustion engine system, particularly in motor vehicle, has internal combustion engine and fresh gas plant for supplying fresh gas to internal combustion engine and exhaust gas plant for discharging exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102007025179A1 true DE102007025179A1 (en) | 2008-09-04 |
Family
ID=39670208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102007025179A Withdrawn DE102007025179A1 (en) | 2007-02-23 | 2007-05-29 | Internal combustion engine system, particularly in motor vehicle, has internal combustion engine and fresh gas plant for supplying fresh gas to internal combustion engine and exhaust gas plant for discharging exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102007025179A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010009287A1 (en) | 2010-02-25 | 2011-08-25 | MAN Truck & Bus AG, 80995 | Method and device for operating an internal combustion engine, in particular an internal combustion engine of a motor vehicle |
| CN112901361A (en) * | 2021-02-10 | 2021-06-04 | 东风汽车集团股份有限公司 | Method for determining target opening of mixing valve of EGR system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005009104B3 (en) * | 2005-02-28 | 2006-08-31 | Siemens Ag | Method for control of combustion engine involves one or more cylinders with a burner chamber and associated with piston together with suction tract linked to inlet-valve of burner chamber and outlet-valve linked to cylinder pressure sensor |
| WO2006129371A1 (en) * | 2005-06-03 | 2006-12-07 | Hitachi, Ltd. | Egr gas mixer |
-
2007
- 2007-05-29 DE DE102007025179A patent/DE102007025179A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005009104B3 (en) * | 2005-02-28 | 2006-08-31 | Siemens Ag | Method for control of combustion engine involves one or more cylinders with a burner chamber and associated with piston together with suction tract linked to inlet-valve of burner chamber and outlet-valve linked to cylinder pressure sensor |
| WO2006129371A1 (en) * | 2005-06-03 | 2006-12-07 | Hitachi, Ltd. | Egr gas mixer |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010009287A1 (en) | 2010-02-25 | 2011-08-25 | MAN Truck & Bus AG, 80995 | Method and device for operating an internal combustion engine, in particular an internal combustion engine of a motor vehicle |
| EP2362083A1 (en) | 2010-02-25 | 2011-08-31 | MAN Truck & Bus AG | Method and device for operating a combustion engine of a motor vehicle |
| CN102192050A (en) * | 2010-02-25 | 2011-09-21 | 曼卡车和巴士股份公司 | Method and device for operating an internal combustion engine, in particular an internal combustion engine of a motor vehicle |
| US8931462B2 (en) | 2010-02-25 | 2015-01-13 | Man Truck & Bus Ag | EGR system for an internal combustion engine that feeds exhaust gas independent of intake air |
| CN102192050B (en) * | 2010-02-25 | 2015-06-03 | 曼卡车和巴士股份公司 | Method and device for operating an internal combustion engine, in particular an internal combustion engine of a motor vehicle |
| CN112901361A (en) * | 2021-02-10 | 2021-06-04 | 东风汽车集团股份有限公司 | Method for determining target opening of mixing valve of EGR system |
| CN112901361B (en) * | 2021-02-10 | 2022-08-30 | 东风汽车集团股份有限公司 | Method for determining target opening of mixing valve of EGR system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20140531 |