DE102008036239A1 - Exhaust gas recirculation system intake pipe for use in suction plant of internal combustion engine in motor vehicle, has two exhaust gas recirculation system valves, which are independently adjusted - Google Patents
Exhaust gas recirculation system intake pipe for use in suction plant of internal combustion engine in motor vehicle, has two exhaust gas recirculation system valves, which are independently adjusted Download PDFInfo
- Publication number
- DE102008036239A1 DE102008036239A1 DE102008036239A DE102008036239A DE102008036239A1 DE 102008036239 A1 DE102008036239 A1 DE 102008036239A1 DE 102008036239 A DE102008036239 A DE 102008036239A DE 102008036239 A DE102008036239 A DE 102008036239A DE 102008036239 A1 DE102008036239 A1 DE 102008036239A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gas
- gas recirculation
- recirculation system
- combustion engine
- 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.)
- Ceased
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
- 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
- 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
- F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings 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
- F02M26/38—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
- F02M26/52—Systems for actuating EGR valves
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
- F02M26/54—Rotary actuators, e.g. step motors
-
- 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
-
- 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
- F02M26/66—Lift valves, e.g. poppet valves
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 Erfindung betrifft eine Einleitstelle für in die Sauganlage eines Verbrennungsmotors rückgeführtes Abgas gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a discharge point for in the intake system an exhaust gas recirculated exhaust gas according to the Preamble of claim 1.
Zur
Erhöhung des Wirkungsgrades von Verbrennungsmotoren und
zur Reduzierung des Anteils von Schadstoffen im Abgas ist es bekannt,
der dem Verbrennungsmotor zugeführten Frisch- bzw. Rohluft einen
Teile des bei der Verbrennung gebildeten Abgases beizumischen. Hierzu
ist in der Sauganlage des Verbrennungsmotors dann ein Bauteil angeordnet,
das den Frischluft- und den rückgeführten Abgasstrom
zusammenführt und miteinander vermischt. Eine derartige
Abgasrückführungs-Einleitstelle ist beispielsweise
aus der
Die Aufgabe der Erfindung besteht darin, die bekannte Abgasrückführungseinleitstelle zu verbessern.The The object of the invention is the known exhaust gas recirculation discharge point to improve.
Die Aufgabe wird gelöst durch die Merkmale des Patentanspruchs 1. Die Unteransprüche betreffen vorteilhafte Aus- und Weiterbildungen der Erfindung.The Problem is solved by the features of the claim 1. The dependent claims relate to advantageous training and further education the invention.
Erfindungsgemäß ist vorgesehen, dass die Abgasrückführungs-Einleitstelle wenigstens zwei Abgasrückführungsventile umfasst, wobei jedes Abgasrückführungsventil einem Abgasstrang des Verbrennungsmotors zugeordnet ist, aus dem zumindest anteilig Abgas entnommen wird, wobei die Abgasrückführungsventile voneinander unabhängig einstellbar vorgesehen sind. Anders ausgedrückt führt die erfindungsgemäße Abgasrückführungs-Einleitstelle das Abgas eines Verbrennungsmotors mit mehreren Abgassträngen in vorteilhafter Weise in einer einzigen Abgasrückführungs-Einleitstelle zur Frisch/Rohluft zurück. Indem dabei jedem Abgasstrang ein eigenes, unabhängig ansteuerbares Abgasrückführungsventil zugeordnet ist, wird eine individuelle Anpassung an die individuellen Gegebenheiten eines jeweiligen Abgasstrangs möglich. Insbesondere können damit bei der Abgasrückführung auch spezielle Gegebenheiten beim Verbrennungsmotor wie beispielsweise eine Zylinderabschaltung berücksichtigt werden. So kann beispielsweise bei demjenigen Abgasstrang, der einem oder mehreren abgeschalteten Zylindern zugeordnet ist, eine andere Ansteuerung des Abgasrückführungsventils vorsehen sein als bei dem oder den anderen Abgassträngen. Damit ergibt sich eine zuverlässige und gleichmäßige Durchmischung von Abgas und Frisch- bzw. Rohluft, indem an der Abgasrückführungs-Einleitstelle die unterschiedlichen Gegebenheiten verschiedener Abgasstränge berücksichtigt werden.According to the invention provided that the exhaust gas recirculation discharge point comprises at least two exhaust gas recirculation valves, wherein each exhaust gas recirculation valve is an exhaust gas line of the internal combustion engine is assigned, from the at least proportionately Exhaust gas is removed, the exhaust gas recirculation valves are provided independently adjustable. Different Expressed the inventive leads Exhaust gas recirculation discharge point the exhaust gas of a Combustion engine with multiple exhaust lines in an advantageous Way in a single exhaust gas recirculation discharge point back to fresh / raw air. By doing each exhaust system a separate, independently controllable exhaust gas recirculation valve assigned is an individual adaptation to the individual circumstances a respective exhaust line possible. In particular, you can so that with the exhaust gas recirculation also special Conditions in the internal combustion engine such as a cylinder shutdown be taken into account. For example, with the one Exhaust line associated with one or more deactivated cylinders is another control of the exhaust gas recirculation valve be provided as in the or the other exhaust strands. This results in a reliable and uniform Mixing of exhaust gas and fresh or raw air by at the exhaust gas recirculation discharge point the different conditions of different exhaust strands be taken into account.
Eine weitere Optimierung und damit noch bessere Durchmischung von Abgas und Roh- bzw. Frischluft ergibt sich durch eine lastpunktabhängige Einstellung der beiden Abgasrückführungsventile, d. h. abhängig vom aktuellen Lastpunkt des Verbrennungsmotors.A further optimization and thus even better mixing of exhaust gas and raw or fresh air results from a load point-dependent adjustment the two exhaust gas recirculation valves, d. H. dependent from the current load point of the internal combustion engine.
In einer bevorzugten Realisierungsform ist vorgesehen, jedem Abgasrückführungsventil einen eigenen Elektromotor zur Steuerung zuzuordnen. Hiermit wird eine einfache aber wirkungsvolle, unabhängige Steuerung der unterschiedlichen Einstellungen der Abgasrückführungsventile ermöglicht. Dabei kann der jeweilige Elektromotor insbesondere in die Abgasrückführungs-Einleitstelle bauteilmäßig integriert sein, womit sich eine besonders kompakte Ausführung ergibt.In A preferred embodiment is provided, each exhaust gas recirculation valve to assign a separate electric motor for control. Hereby becomes a simple but effective, independent control the different settings of the exhaust gas recirculation valves allows. In this case, the respective electric motor in particular component in the exhaust gas recirculation discharge point be integrated, bringing a particularly compact design results.
Besonders bevorzugt ist der Abgasrückführungs-Einleitstutzen der Abgasrückführungs-Einleitstelle ringförmig vorgesehen, wobei für einen Verbrennungsmotor mit zwei getrennten Abgassträngen zwei jeweilige Abgasrückführungsventile vorgesehen sind, die im Wesentlichen einander gegenüberliegend angeordnet sind. Hiermit werden Beeinflussungen der beiden Abgassträngen untereinander besonders wirksam vermieden.Especially preferred is the exhaust gas recirculation inlet pipe the exhaust gas recirculation discharge point annular provided for an internal combustion engine with two separate exhaust gas lines two respective exhaust gas recirculation valves are provided, which are substantially opposite each other are arranged. This influences the two exhaust gas lines avoided each other particularly effective.
Eine einfach herzustellende Abgasrückführungs-Einleitstelle ergibt sich bei der Ausführung des Grundkörpers, d. h. des Abgasrückführungs-Einleitstutzens, als Gussteil das zur Aufnahme der Abgasrückführungsventile vorgesehen ist. Natürlich können diese auch bereits im Gussteil ausgeformt sein, zur Aufnahme der Mittel zur voneinander unabhängigen Einstellung.A easy to manufacture exhaust gas recirculation discharge point results in the execution of the body, d. H. the exhaust gas recirculation inlet, as Casting that for receiving the exhaust gas recirculation valves is provided. Of course, these can already be done be formed in the casting, for receiving the means to each other independent setting.
Damit ein zuverlässiger Betrieb der Abgasrückführungs-Einleitstelle sichergestellt ist, sind bevorzugt Mittel zur Kühlung, insbesondere zur Wasserkühlung, von der Abgasrückführungs-Einleitstelle umfasst. Da die Abgasrückführungs-Einleitstelle durch die Anordnung in der Sauganlage in der Nähe des Verbrennungsmotors vorgesehen ist, kann hier in vorteilhafter Weise auf die Wasserkühlung des Verbrennungsmotors zurückgegriffen werden. Natürlich sich auch andere Möglichkeiten zur Kühlung denkbar, beispielsweise eine Luftkühlung.In order to a reliable operation of the exhaust gas recirculation discharge point is ensured, are preferably means for cooling, in particular for water cooling, comprises of the exhaust gas recirculation discharge point. Since the exhaust gas recirculation discharge point through the Arrangement in the intake system near the combustion engine is provided here in an advantageous manner to the water cooling the internal combustion engine are used. Of course also other possibilities for cooling are conceivable, for example, an air cooling.
Alternativ kann vorgesehen sein, die Abgasrückführungs-Einleitstelle kühlungsmittellos auszuführen. Insbesondere abhängig von den Gegebenheiten des oder jeden Abgasstrangs kann bei genügend großer Entfernung der Abgasrückführungs-Einleitstelle von einem Abgasstrang das Abgas bereits entsprechend abgekühlt sein, womit ein Kühler an der Abgasrückführungs-Einleitstelle entfallen kann.alternative can be provided, the exhaust gas recirculation discharge point perform without coolant. In particular dependent from the circumstances of the or each exhaust line can be enough long distance of the exhaust gas recirculation discharge point From an exhaust line, the exhaust already cooled accordingly be, with which a cooler at the exhaust gas recirculation discharge point can be omitted.
Die erfindungsgemäße Abgasrückführungs-Einleitstelle ist bevorzugt in einem Kraftfahrzeug im Bereich der Sauganlage des Verbrennungsmotors im Luftmassenstrom stromabwärts der Drosselklappe angeordnet. Anders ausgedrückt befindet sich zwischen der Abgasrückführungs-Einleitstelle und der Brennraum-Zuführung keine Drosselklappe mehr. Diese ist aufgrund der durch die erfindungsgemäße Abgasrückführungs-Einleitstelle sichergestellten guten und störungsfreien Durchmischung von Frisch- bzw. Rohluft und Abgas nicht erforderlich.The exhaust gas recirculation discharge point according to the invention is preferably in a motor vehicle in the region of the intake system of the internal combustion engine arranged in the air mass flow downstream of the throttle valve. In other words, no throttle valve is located between the exhaust gas recirculation introduction point and the combustion chamber supply. This is not required due to the good and trouble-free mixing of fresh or raw air and exhaust gas ensured by the exhaust gas recirculation discharge point according to the invention.
Die Erfindung wird nun anhand einer Zeichnung näher dargestellt. Dabei zeigt die einzige Fig. eine besonders bevorzugte Ausführungsform der Erfindung.The Invention will now be described in more detail with reference to a drawing. The single FIGURE shows a particularly preferred embodiment the invention.
Dargestellt
ist eine Abgasrückführungseinleitstelle
Die
Rückführung des Abgases erfolgt durch zwei Zuläufe
Das
Abgas aus dem einen Abgasstrang strömt durch den Abgasrückführungszulauf
Das
Abgas, das von den jeweiligen Abgasrückführungsventilen
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19910781 [0002] - DE 19910781 [0002]
- - US 1432751 [0002] - US 1432751 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008036239A DE102008036239A1 (en) | 2008-08-02 | 2008-08-02 | Exhaust gas recirculation system intake pipe for use in suction plant of internal combustion engine in motor vehicle, has two exhaust gas recirculation system valves, which are independently adjusted |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008036239A DE102008036239A1 (en) | 2008-08-02 | 2008-08-02 | Exhaust gas recirculation system intake pipe for use in suction plant of internal combustion engine in motor vehicle, has two exhaust gas recirculation system valves, which are independently adjusted |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008036239A1 true DE102008036239A1 (en) | 2010-02-04 |
Family
ID=41461659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008036239A Ceased DE102008036239A1 (en) | 2008-08-02 | 2008-08-02 | Exhaust gas recirculation system intake pipe for use in suction plant of internal combustion engine in motor vehicle, has two exhaust gas recirculation system valves, which are independently adjusted |
Country Status (1)
Country | Link |
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DE (1) | DE102008036239A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9644574B2 (en) | 2014-12-01 | 2017-05-09 | Denso International America, Inc. | EGR device having baffle and EGR mixer for EGR device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1432751A (en) | 1921-02-25 | 1922-10-24 | George E A Hallett | Method and apparatus for heating the explosive mixture of an internalcombustion engine |
DE19910781A1 (en) | 1999-03-11 | 2000-09-14 | Mahle Filtersysteme Gmbh | Piston engine for motor vehicles with forced mixing of gases due to feeding hot exhaust gases into relatively cool fresh air, for low gas mixture temperature |
DE10122201A1 (en) * | 2001-05-08 | 2002-11-14 | Daimler Chrysler Ag | Exhaust gas feedback system for internal combustion engine, particularly for automotive application, has cylinder flange extending in longitudinal direction of engine covering over inlet channels |
US20070039597A1 (en) * | 2005-08-18 | 2007-02-22 | Zukouski Russell P | Tangential mixer and method |
DE102006037578A1 (en) * | 2006-06-21 | 2007-12-27 | Daimlerchrysler Ag | Mixer used in an exhaust gas recycling system comprises a tubular base body with an inner wall delimiting a charged air flow channel and an integrated exhaust gas flow channel |
-
2008
- 2008-08-02 DE DE102008036239A patent/DE102008036239A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1432751A (en) | 1921-02-25 | 1922-10-24 | George E A Hallett | Method and apparatus for heating the explosive mixture of an internalcombustion engine |
DE19910781A1 (en) | 1999-03-11 | 2000-09-14 | Mahle Filtersysteme Gmbh | Piston engine for motor vehicles with forced mixing of gases due to feeding hot exhaust gases into relatively cool fresh air, for low gas mixture temperature |
DE10122201A1 (en) * | 2001-05-08 | 2002-11-14 | Daimler Chrysler Ag | Exhaust gas feedback system for internal combustion engine, particularly for automotive application, has cylinder flange extending in longitudinal direction of engine covering over inlet channels |
US20070039597A1 (en) * | 2005-08-18 | 2007-02-22 | Zukouski Russell P | Tangential mixer and method |
DE102006037578A1 (en) * | 2006-06-21 | 2007-12-27 | Daimlerchrysler Ag | Mixer used in an exhaust gas recycling system comprises a tubular base body with an inner wall delimiting a charged air flow channel and an integrated exhaust gas flow channel |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9644574B2 (en) | 2014-12-01 | 2017-05-09 | Denso International America, Inc. | EGR device having baffle and EGR mixer for EGR device |
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8127 | New person/name/address of the applicant |
Owner name: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, 7, DE |
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Effective date: 20150413 |
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Free format text: PREVIOUS MAIN CLASS: F02M0025070000 Ipc: F02M0026190000 |
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R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |