DE10130013A1 - Exhaust gas recirculation arrangement - Google Patents
Exhaust gas recirculation arrangementInfo
- Publication number
- DE10130013A1 DE10130013A1 DE10130013A DE10130013A DE10130013A1 DE 10130013 A1 DE10130013 A1 DE 10130013A1 DE 10130013 A DE10130013 A DE 10130013A DE 10130013 A DE10130013 A DE 10130013A DE 10130013 A1 DE10130013 A1 DE 10130013A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gas
- valve
- gas recirculation
- intake manifold
- outlet
- 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- Withdrawn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
- 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
- F02M26/69—Lift valves, e.g. poppet valves having two or more valve-closing members
-
- 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
-
- 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
-
- 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
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
Die Erfindung beschreibt eine Abgasrückführanordnung für einen Verbrennungsmotor mit zwei getrennten Abgassträngen, wobei ein Abgasrückführventil (9) zwei Ventilglieder (17, 19) aufweist, wovon eines den Auslaß (10) zum Saugrohr (11) kontrolliert und das zweite Ventilglied (19) eine Verbindung zwischen den beiden Abgassträngen (3, 4) beherrscht.The invention describes an exhaust gas recirculation system for an internal combustion engine with two separate exhaust gas lines, an exhaust gas recirculation valve (9) having two valve elements (17, 19), one of which controls the outlet (10) to the intake manifold (11) and the second valve element (19) a connection dominated between the two exhaust lines (3, 4).
Description
Die Erfindung betrifft eine Abgasrückführanordnung nach dem Oberbegriff des Hauptanspruchs. Abgasrückführanordnungen zur Verbesserung der Abgasqualität durch Verringerung des Nox-Ausstoßes sind bekannt. Bei einem Verbrennungsmotor, sei es nach dem Otto- oder nach dem Dieselprinzip, mit zwei getrennten Abgassträngen kann in Abhängigkeit vom Hubraum bei niedriger Drehzahl, bei der zur Verbesserung der Abgasqualität eine höhere Abgasrückführmenge verlangt wird, die Entnahme des Abgases lediglich aus einem Abgasstrang zu gering sein, da das Abgas pulsiert. Daher muß das Abgas zum Zwecke der Rückführung aus beiden Strängen gleichzeitig entnommen werden um sicherzustellen, daß es in ausreichender Menge zur Verfügung steht. The invention relates to an exhaust gas recirculation arrangement according to the preamble of the main claim. Exhaust gas recirculation arrangements for improving the exhaust gas quality by reducing the No x emissions are known. In the case of an internal combustion engine, whether according to the Otto or diesel principle, with two separate exhaust gas lines, depending on the displacement at low engine speed, which requires a higher exhaust gas recirculation quantity to improve the exhaust gas quality, the exhaust gas extraction from one exhaust gas line is too low be because the exhaust gas pulsates. Therefore, the exhaust gas must be removed from both lines for the purpose of recirculation to ensure that it is available in sufficient quantity.
Bei einem Verbrennungsmotor mit zwei Abgassträngen und jeweils einem in diesen angeordneten Turboladern muß andererseits dafür gesorgt werden, daß die beiden Stränge voneinander getrennt sind, um einen überproportionalen Druckaufbau in einem Strang zu vermeiden, da dann der Turbolader im zweiten Antriebstrang zu wenig Antriebsleistung erhält. In an internal combustion engine with two exhaust lines and one in each these arranged turbochargers, on the other hand, must ensure that the two strands are separated from each other to make a disproportionate Avoid pressure build-up in one line, since then the turbocharger in the second Drivetrain receives too little drive power.
Der Erfindung liegt daher die Aufgabe zugrunde, diese entgegengesetzten Anforderungen durch die Ausbildung eines Abgasrückführventils zu erfüllen. The invention is therefore based on the object, these opposite To meet requirements by designing an exhaust gas recirculation valve.
Diese Aufgabe ist durch die Ausbildung des Abgasrückführventils nach den Merkmalen des Anspruchs 1) gelöst. Vorteilhafte Ausbildungen sind in den weiteren Ansprüchen angegeben. This task is through the formation of the exhaust gas recirculation valve according to the Features of claim 1) solved. Advantageous training courses are in the specified further claims.
Die Figur zeigt schematisch eine Abgasrückführanordnung nach der Erfindung. The figure shows schematically an exhaust gas recirculation arrangement according to the invention.
Ein Verbrennungsmotor 1 weist V-förmig angeordnete Zylinderbänke 2 auf, von denen jeweils ein Abgasstrang 3, 4 zu jeweils einem Turbolader 5, 6 führen, wobei gleichzeitig von den Abgassträngen 3, 4 eine Zweigleitung mit der gleichen Nummer zu den Einlässen 7, 8 eines Abgasrückführventiles 9 führen. Eine Auslaßleitung 10 des Abgasrückführventils führt zu einem Saugrohr 11 von dem aus die Zylinderbänke 2 versorgt werden und in das gleichzeitig die Druckleitungen 12, 13 der Abgasturbolader 5, 6 einmünden. An internal combustion engine 1 has cylinder banks 2 arranged in a V-shape, each of which has an exhaust line 3 , 4 leading to a turbocharger 5 , 6 , with a branch line with the same number from the exhaust lines 3 , 4 to the inlets 7 , 8 Guide exhaust gas recirculation valve 9 . An outlet line 10 of the exhaust gas recirculation valve leads to an intake pipe 11 from which the cylinder banks 2 are supplied and into which the pressure lines 12 , 13 of the exhaust gas turbochargers 5 , 6 open at the same time.
Das Abgasrückführventil 9 ist derart aufgebaut, daß es einen beliebig ausgebildeten Stellmotor 14 aufweist. Dieser kann pneumatisch oder elektromotorisch sein. Der Stellmotor 14 betätigt in Abhängigkeit von Betriebsparametern 15 eine Ventilstange 16 an der ein Ventilteller 17 angeordnet ist, der dem Auslaß 10 zugeordnet ist und dort in der Schließposition an einem Sitz 18 dichtend anliegt. Am freien Ende der Ventilstange 17 ist ein zweites Ventilglied 19 angeordnet, das mit einem Dichtungsbereich 20 eines der Einlässe 8 zusammenwirkt. Um eine Überbestimmung durch zwei mechanische Anschläge zu vermeiden, ist beispielsweise das Ventilglied 19 am freien Ende der Ventilstange 16 kardanisch angeordnet. Dabei wird eine geringe Leckmenge von Abgas aus dem Einlaß 8 in die Ventilkammer 21 in Kauf genommen, auch wenn sich dort diese Leckmenge mit dem Abgas des Einlasses 7 vermischen kann. Die Leckmenge kann jedoch als so geringfügig angesehen werden, daß in dem Abgasstrang 7 kein wesentlich erhöhter Druckaufbau erfolgt, der zu einer ungleichen Leistung zwischen den Turboladern 5 und 6 führt. The exhaust gas recirculation valve 9 is constructed such that it has an actuator 14 of any design. This can be pneumatic or electric motor. The servomotor 14 actuates, depending on operating parameters 15, a valve rod 16 on which a valve disk 17 is arranged, which is assigned to the outlet 10 and bears sealingly against a seat 18 in the closed position . At the free end of the valve rod 17 , a second valve member 19 is arranged, which cooperates with a sealing area 20 of one of the inlets 8 . In order to avoid overdetermination by two mechanical stops, the valve member 19 is, for example, gimbaled at the free end of the valve rod 16 . A small amount of leakage of exhaust gas from the inlet 8 into the valve chamber 21 is accepted , even if this leakage amount can mix there with the exhaust gas of the inlet 7 . However, the leakage rate can be regarded as so small that there is no significantly increased pressure build-up in the exhaust line 7 , which leads to an uneven performance between the turbochargers 5 and 6 .
Bei Betätigung des Abgasrückführventils 9 in Öffnungsrichtung können sich innerhalb des Ventils die Abgase beider Zylinderbänke vermischen, so daß ein wenig pulsierendes Abgas in ausreichender Menge zur Rückführung zur Verfügung steht. Bei geschlossenem Ventil sind die Abgasleitungen 3, 4 durch das Ventilglied 19 voneinander getrennt. When the exhaust gas recirculation valve 9 is actuated in the opening direction, the exhaust gases of both cylinder banks can mix within the valve, so that a small amount of pulsating exhaust gas is available in sufficient quantity for recirculation. When the valve is closed, the exhaust pipes 3 , 4 are separated from one another by the valve member 19 .
An dem freien Ende der Ventilstange 16 könnte auch ein kolbenförmiges Ventilglied (nicht dargestellt) ausgebildet sein, das in eine zylindrische Bohrung am ventilseitigen Ende des Einlasses 8 (ebenfalls nicht dargestellt) einführbar ist. Auch hierbei wird durch einen verbleibenden Ringspalt zwischen dem Kolben und der Bohrung eine gewisse Leckmenge austreten, die jedoch in Abhängigkeit von Breite und Länge des Ringspaltes weiter reduzierbar ist. At the free end of the valve rod 16 , a piston-shaped valve member (not shown) could also be formed, which can be inserted into a cylindrical bore at the valve-side end of the inlet 8 (also not shown). Here too, a certain amount of leakage will escape through a remaining annular gap between the piston and the bore, which, however, can be further reduced depending on the width and length of the annular gap.
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10130013A DE10130013A1 (en) | 2001-06-25 | 2001-06-25 | Exhaust gas recirculation arrangement |
EP02008058A EP1270919A3 (en) | 2001-06-25 | 2002-04-11 | Exhaust gas recirculation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10130013A DE10130013A1 (en) | 2001-06-25 | 2001-06-25 | Exhaust gas recirculation arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10130013A1 true DE10130013A1 (en) | 2003-01-02 |
Family
ID=7689005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10130013A Withdrawn DE10130013A1 (en) | 2001-06-25 | 2001-06-25 | Exhaust gas recirculation arrangement |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1270919A3 (en) |
DE (1) | DE10130013A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10234845A1 (en) * | 2002-07-31 | 2004-02-19 | Daimlerchrysler Ag | Internal combustion engine with exhaust return has valve housing with mixing chamber with two exhaust gas inlet apertures and one exhaust gas outlet aperture |
DE102014117309A1 (en) | 2014-11-26 | 2016-06-02 | Pierburg Gmbh | Valve device for exhaust gas recirculation on an internal combustion engine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2858013B1 (en) * | 2003-07-22 | 2007-06-29 | Renault Sa | INTERNAL COMBUSTION ENGINE FOR A MOTOR VEHICLE COMPRISING AN EGR VALVE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06147025A (en) * | 1992-11-11 | 1994-05-27 | Toyota Motor Corp | Exhaust reflux device |
DE19539921C1 (en) * | 1995-10-26 | 1997-02-27 | Ranco Inc | Exhaust-gas recirculation valve |
US6006732A (en) * | 1998-09-03 | 1999-12-28 | Navistar International Transportation Corp | Balanced flow EGR control apparatus |
DE19951591C1 (en) * | 1999-10-27 | 2001-01-04 | Daimler Chrysler Ag | Exhaust gas return device for internal combustion engines has two exhaust flows sealed from each other in all valve positions by sealing element as axial guide element between valve plates |
-
2001
- 2001-06-25 DE DE10130013A patent/DE10130013A1/en not_active Withdrawn
-
2002
- 2002-04-11 EP EP02008058A patent/EP1270919A3/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10234845A1 (en) * | 2002-07-31 | 2004-02-19 | Daimlerchrysler Ag | Internal combustion engine with exhaust return has valve housing with mixing chamber with two exhaust gas inlet apertures and one exhaust gas outlet aperture |
DE102014117309A1 (en) | 2014-11-26 | 2016-06-02 | Pierburg Gmbh | Valve device for exhaust gas recirculation on an internal combustion engine |
DE102014117309B4 (en) * | 2014-11-26 | 2021-02-04 | Pierburg Gmbh | Valve device for exhaust gas recirculation on an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
EP1270919A3 (en) | 2006-05-17 |
EP1270919A2 (en) | 2003-01-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102010016284A1 (en) | Air intake device for an internal combustion engine | |
DE3139309A1 (en) | Internal combustion engine | |
DE3222460A1 (en) | METHOD AND DEVICE FOR FUEL SUPPLY IN COMBUSTION ENGINES | |
EP1543233A1 (en) | Exhaust gas recirculation system for an internal combustion engine | |
DE3743056A1 (en) | Intake string for a reciprocating internal-combustion engine | |
EP0251159B1 (en) | Return line for leak gas from a crank case | |
DE10301732B4 (en) | Two-stroke engine and method for its operation | |
DE4435555C1 (en) | Multi-cylinder internal combustion engine | |
DE3040472C2 (en) | Internal combustion engine | |
EP0855502A2 (en) | Internal combustion engine with exhaust gas recirculation device | |
DE102004047990B4 (en) | Air intake arrangement for an internal combustion engine | |
DE69100872T2 (en) | Two-stroke engines. | |
DE102005025904B4 (en) | Exhaust gas recirculation system and method for exhaust gas recirculation | |
DE69806644T2 (en) | CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE | |
DE3923924C2 (en) | Control device for the intake manifold system of a vehicle internal combustion engine | |
EP0949414B1 (en) | Air intake system for a combustion engine | |
DE10130013A1 (en) | Exhaust gas recirculation arrangement | |
DE69913256T2 (en) | Internal combustion engine | |
DE10320857A1 (en) | IC engine with direct fuel injection has ventilation pipe for crankcase controlled by throttle of air intake unit for effective ventilation of engine housing | |
DE102004002641B4 (en) | Modular suction device | |
EP1020635B1 (en) | Intake air duct for diesel engines | |
DE602004005062T2 (en) | CARB | |
DE3603418C2 (en) | Throttle control for an internal combustion engine | |
DE3137453A1 (en) | INTAKE ARRANGEMENT FOR AN INTERNAL COMBUSTION ENGINE | |
DE10359058A1 (en) | Gas exchange valve device for internal combustion engine, has operating unit to cover cam shafts whose rotation angle is adjusted by adjusting device, and valves propelled over cam shafts that are coupled with actuators to operate valves |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8130 | Withdrawal |