FR2910068A1 - Exhaust gas recirculation device for internal combustion engine of motor vehicle, has exhaust gas recirculation conduits extending from nozzle until air intake system, where part of one of conduits is made of flexible polymer material - Google Patents

Exhaust gas recirculation device for internal combustion engine of motor vehicle, has exhaust gas recirculation conduits extending from nozzle until air intake system, where part of one of conduits is made of flexible polymer material Download PDF

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Publication number
FR2910068A1
FR2910068A1 FR0655466A FR0655466A FR2910068A1 FR 2910068 A1 FR2910068 A1 FR 2910068A1 FR 0655466 A FR0655466 A FR 0655466A FR 0655466 A FR0655466 A FR 0655466A FR 2910068 A1 FR2910068 A1 FR 2910068A1
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Prior art keywords
exhaust gas
gas recirculation
exhaust
conduits
duct
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FR0655466A
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French (fr)
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FR2910068B1 (en
Inventor
Jerome Petit
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Renault SAS
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Renault SAS
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Priority to FR0655466A priority Critical patent/FR2910068B1/en
Priority to EP07301622A priority patent/EP1936176A1/en
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Publication of FR2910068B1 publication Critical patent/FR2910068B1/en
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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
    • F02M26/13—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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream 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
    • F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
    • 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
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/15—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus
    • 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
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/16—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system with EGR valves located at or near the connection to the exhaust 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/71—Multi-way valves

Abstract

The device has a by-pass nozzle (30) e.g. three-way control valve, for by-passing exhaust gas and located downstream of a depollution unit. Exhaust gas recirculation conduits (32, 36) extend from the nozzle until an air intake system, which is constituted of an air filter (38) and an intake manifold (40). A part of the recirculation conduit (36) i.e. exhaust gas recirculation pipe, is made of a flexible polymer material e.g. silicone. A heat exchanger (34) is located downstream of the nozzle and upstream of the part of the conduit (36).

Description

1 DISPOSITIF DE RECIRCULATION DES GAZ D'ECHAPPEMENT D'UN MOTEUR A1 DEVICE FOR RECIRCULATING THE EXHAUST GAS OF AN ENGINE A

COMBUSTION INTERNE DE VEHICULE AUTOMOBILE La présente invention concerne un dispositif de recirculation des gaz d'échappement pour un moteur à combustion interne de véhicule automobile. L'invention concerne plus particulièrement mais de façon non limitative, un dispositif de recirculation des gaz d'échappement pour un moteur à combustion interne de véhicule automobile se situant dans un espace restreint sous la caisse du véhicule.  The present invention relates to an exhaust gas recirculation device for an internal combustion engine of a motor vehicle. The invention relates more particularly but not limited to an exhaust gas recirculation device for an internal combustion engine of a motor vehicle located in a restricted space under the vehicle body.

Les normes antipollution imposent aux constructeurs de véhicules automobiles des quantités maximales de substances polluantes rejetées dans l'atmosphère. Une technique de dépollution des gaz d'échappement consiste à faire recirculer une partie des gaz d'échappement vers l'admission d'air du moteur.  The anti-pollution standards impose on motor vehicle manufacturers maximum amounts of pollutants released into the atmosphere. An exhaust gas depollution technique involves recirculating a portion of the exhaust gas to the engine air intake.

Cette technique est communément appelée recirculation des gaz d'échappement, ou "Exhaust Gas Recirculation" (EGR) en anglais. Une des méthodes de recirculation des gaz d'échappement dite recirculation basse pression, consiste à dériver une partie des gaz d'échappement du moteur en aval de la turbine d'un turbocompresseur, afin de la réintroduire à l'admission d'air du moteur. Cette dérivation des gaz d'échappement est généralement réalisée en aval des organes de dépollution comme les filtres à particules ou les catalyseurs, de manière à faire recirculer des gaz d'échappement exempts d'une partie des particules polluantes. Lorsque la dérivation des gaz EGR se situe en aval d'un organe de dépollution situé dans un tunnel aménagé sous la caisse du véhicule, l'agencement du conduit de retour des gaz d'échappement est parfois problématique car l'espace disponible est limité. De plus, la ligne d'échappement ainsi que la partie du circuit de retour des gaz d'échappement située dans le tunnel doivent posséder un certain degré de liberté par rapport au moteur. Les mouvements de la ligne par rapport au moteur lors du fonctionnement du véhicule ou lors du montage de la ligne, nécessite donc l'ajout d'un élément autorisant les mouvements entre la ligne d'échappement et la partie du circuit de retour des gaz 2910068 2 d'échappement située dans le tunnel, et les élément de raccords fixes par rapport au moteur. La publication EP 1 422 412 propose un raccord entre éléments d'échappement du moteur et la ligne d'échappement située dans le tunnel. Le 5 raccord comportant une rotule qui intègre à la fois des passages pour les gaz d'échappement s'écoulant vers la ligne d'échappement, et les gaz EGR s'écoulant vers le moteur. Cependant, une telle bride reste encombrante dans l'espace restreint défini par le tunnel, et limite le positionnement du circuit de retour des gaz 10 EGR. Le but de l'invention, est de fournir un dispositif de recirculation des gaz d'échappement pour un moteur à combustion interne de véhicule automobile permettant une implantation du circuit de retour des gaz d'échappement plus aisée.  This technique is commonly called exhaust gas recirculation, or "Exhaust Gas Recirculation" (EGR) in English. One of the recirculation methods of exhaust gas recirculation low pressure consists of diverting a portion of the exhaust gas from the engine downstream of the turbine of a turbocharger, in order to reintroduce it to the air intake of the engine . This bypass of the exhaust gas is generally carried out downstream of the pollution control members such as particulate filters or catalysts, so as to recirculate exhaust gases free of a portion of the polluting particles. When the EGR gas bypass is located downstream of a pollution control member located in a tunnel built under the vehicle body, the arrangement of the exhaust gas return duct is sometimes problematic because the available space is limited. In addition, the exhaust line and the part of the exhaust gas return circuit located in the tunnel must have a certain degree of freedom with respect to the engine. The movements of the line relative to the engine during the operation of the vehicle or during the assembly of the line, therefore requires the addition of an element allowing movement between the exhaust line and the part of the return gas circuit 2910068 2 exhaust located in the tunnel, and the elements of fixed connections relative to the engine. Publication EP 1 422 412 proposes a connection between the engine exhaust elements and the exhaust line located in the tunnel. The coupling having a ball joint incorporating both passages for the exhaust gas flowing to the exhaust line, and the EGR gases flowing to the engine. However, such a flange remains bulky in the restricted space defined by the tunnel, and limits the positioning of the EGR gas return circuit. The object of the invention is to provide an exhaust gas recirculation device for a motor vehicle internal combustion engine for an easier installation of the exhaust gas return circuit.

15 Dans ce but, l'invention propose un dispositif de recirculation des gaz d'échappement dont au moins une partie du conduit de recirculation des gaz d'échappement du dispositif est constitué d'un matériau souple. Selon d'autres caractéristiques de l'invention, le conduit de recirculation des gaz d'échappement peut comporter un échangeur thermique 20 situé en aval du piquage de dérivation, et en amont de la partie du conduit de recirculation en materiau souple. Le dispositif de recirculation des gaz d'échappement peut comporter un moyen de régulation du débit des gaz vers le conduit de recirculation au niveau du piquage de dérivation.For this purpose, the invention proposes an exhaust gas recirculation device at least a part of the exhaust gas recirculation duct of the device consists of a flexible material. According to other features of the invention, the exhaust gas recirculation duct may comprise a heat exchanger 20 located downstream of the bypass tap, and upstream of the portion of the recirculation duct made of flexible material. The exhaust gas recirculation device may comprise a means for regulating the flow of gases to the recirculation duct at the bypass tap.

25 Le moyen de régulation peut être une vanne trois voies ou un volet étouffoir situé dans la ligne d'échappement en aval du piquage de dérivation. La partie du conduit en matériau souple peut être un tuyau en matière polymère tel que du silicone. L'invention sera désormais décrite dans un exemple en référence au 30 dessin annexé suivant : 2910068 3 - la figure 1 est un schéma d'un véhicule dont le circuit d'échappement comporte le dispositif de recirculation des gaz d'échappement de l'invention; Dans toute la description les termes aval et amont sont utilisés par 5 rapport au sens d'écoulement des gaz d'échappement. En référence à la figure 1, un véhicule automobile 8 comprend un moteur à combustion interne 10 dans un compartiment moteur 12 situé à l'avant du véhicule 8. Le moteur 10 comporte un système d'admission d'air constitué de 10 différents organes tels qu'un filtre à air 38 et un collecteur d'admission 40. Le moteur 10 comporte aussi un carter cylindres 14 surmonté d'une culasse 16. La culasse 16 comprend des orifices d'échappement des gaz brûlés pendant la combustion dans le moteur 10. Un collecteur d'échappement 18, fixé sur la face de la culasse 16 15 comportant les orifices d'échappement des gaz, possède des tubulures recueillant les gaz d'échappement aux différents orifices d'échappement de la culasse 16, et dirigeant ces gaz vers un unique orifice de sortie du collecteur 18. Un turbocompresseur 20 est fixé à la sortie du collecteur 20 d'échappement 18 afin de décompresser les gaz d'échappement qui ont été compressés lors de leur admission dans le moteur 10. Les gaz d'échappement décompressés s'écoulent ensuite vers une ligne d'échappement 22 s'étendant du compartiment moteur 12 jusqu'à l'arrière du véhicule 8.The regulating means may be a three-way valve or a damper flap located in the exhaust line downstream of the bypass tap. The portion of the flexible material conduit may be a polymer material pipe such as silicone. The invention will now be described in an example with reference to the following appended drawing: FIG. 1 is a diagram of a vehicle whose exhaust system comprises the exhaust gas recirculation device of the invention ; Throughout the description the downstream and upstream terms are used in relation to the flow direction of the exhaust gas. With reference to FIG. 1, a motor vehicle 8 comprises an internal combustion engine 10 in an engine compartment 12 situated at the front of the vehicle 8. The engine 10 comprises an air intake system consisting of 10 different organs such as An air filter 38 and an intake manifold 40. The engine 10 also comprises a cylinder block 14 surmounted by a cylinder head 16. The cylinder head 16 comprises exhaust ports of the flue gases during combustion in the engine 10 An exhaust manifold 18, fixed on the face of the cylinder head 16 having the gas exhaust ports, has pipes collecting the exhaust gases at the different exhaust ports of the cylinder head 16, and directing these gases. to a single outlet port of the manifold 18. A turbocharger 20 is attached to the outlet of the exhaust manifold 18 to decompress the exhaust gas which has been compressed upon admission to the engine The decompressed exhaust gas then flows to an exhaust line 22 extending from the engine compartment 12 to the rear of the vehicle 8.

25 Cette ligne d'échappement 22 est maintenue en aval de la sortie du turbocompresseur 20 par l'intermédiaire d'un élément de raccord 24 autorisant certains degrés de liberté entre la ligne d'échappement 22 et le turbocompresseur 20 fixe par rapport au moteur 10. Cet élément 24 peut être une bride comprenant une rotule ou un dispositif de conduit flexible.This exhaust line 22 is maintained downstream of the outlet of the turbocharger 20 via a connecting element 24 allowing certain degrees of freedom between the exhaust line 22 and the fixed turbocharger 20 with respect to the engine 10. This element 24 may be a flange comprising a ball joint or a flexible duct device.

30 La ligne d'échappement 22 se compose d'un conduit tubulaire et de différents éléments comme des silencieux ou des organes de dépollution 26.The exhaust line 22 consists of a tubular duct and various elements such as silencers or depollution devices 26.

2910068 4 Cette ligne d'échappement 22 est positionnée dans un tunnel 28 de passage de câbles et de canalisations du véhicule 8. Le tunnel 28 est une rainure, au profil sensiblement trapézoïdal, aménagée longitudinalement dans le plancher du véhicule 8, et dont l'entrée est située au niveau de la 5 partie arrière du compartiment moteur 12. Selon l'invention, un piquage de dérivation 30 des gaz vers un circuit de recirculation des gaz d'échappement vers le système d'admission d'air du moteur 10, est positionné en aval de l'organe de dépollution 26 de la ligne d'échappement 22.This exhaust line 22 is positioned in a tunnel 28 for the passage of cables and pipes of the vehicle 8. The tunnel 28 is a groove, with a substantially trapezoidal profile, arranged longitudinally in the floor of the vehicle 8, and of which the The inlet is located at the rear portion of the engine compartment 12. According to the invention, a bypass connection 30 of the gases to an exhaust gas recirculation circuit to the air intake system of the engine 10, is positioned downstream of the depollution unit 26 of the exhaust line 22.

10 Afin de réguler le flux des gaz EGR dans le circuit de recirculation, le piquage 30 est constitué d'une vanne trois voies permettant le réglage du débit des gaz EGR. D'autres moyens de régulation peuvent être utilisés comme un volet de contre pression situé en aval du piquage, ou une vanne EGR permettant l'ouverture ou non du circuit de retour des gaz EGR.In order to regulate the flow of the EGR gases in the recirculation circuit, the tap 30 consists of a three-way valve for adjusting the flow of the EGR gas. Other regulating means may be used as a back pressure flap located downstream of the quilting, or an EGR valve allowing the opening or not of the EGR gas return circuit.

15 Les gaz d'échappement ainsi dérivés dans une première partie 32 du circuit de recirculation des gaz d'échappement, s'écoulent ensuite dans un refroidisseur 34 situé en aval de cette première partie. Le refroidisseur 34 est un échangeur thermique entre les gaz d'échappement chauds et une source froide. La source froide peut être de 20 l'air, de l'eau ou du carburant. Ainsi les gaz entrant à une température supérieur à 200 C ressortent du refroidisseur à une température inférieure à 200 C. Les gaz EGR s'écoulent ensuite en aval du refroidisseur 34 dans une seconde partie 36 du circuit de recirculation des gaz d'échappement. Cette 25 seconde partie 36 est formée principalement d'un conduit souple qui peut notamment être réalisé en silicone. La seconde partie 36 relie directement le refroidisseur 34 au système d'admission d'air du moteur sans passer par l'élément de raccord 24 entre la ligne d'échappement 22 et le turbocompresseur 20. Pour utiliser un conduit de recirculation 36 en matériau 30 souple comme du silicone sans qu'il se détériore, il est nécessaire de refroidir des gaz le traversant à une température inférieure la température des gaz en sortie du volume de dépollution 26.The exhaust gases thus derived in a first part 32 of the exhaust gas recirculation circuit, then flow into a cooler 34 located downstream of this first part. The cooler 34 is a heat exchanger between the hot exhaust gas and a cold source. The cold source may be air, water or fuel. Thus the gases entering at a temperature greater than 200 C emerge from the cooler at a temperature below 200 C. The EGR gases then flow downstream of the cooler 34 in a second part 36 of the exhaust gas recirculation circuit. This second portion 36 is formed mainly of a flexible conduit which may in particular be made of silicone. The second portion 36 directly connects the cooler 34 to the air intake system of the engine without passing through the connecting member 24 between the exhaust line 22 and the turbocharger 20. To use a recirculation duct 36 of material 30 flexible as silicone without it deteriorates, it is necessary to cool gases passing through it at a temperature below the temperature of the gases at the outlet of the pollution control volume 26.

2910068 5 Un des avantages du dispositif de l'invention, est de pouvoir utiliser un élément de raccord flexible 24 standard entre la ligne d'échappement 22 et le turbocompresseur 20 sans avoir à intégrer dans ce raccord 24 un conduit 36 de recirculation des gaz d'échappement. En effet, le fait d'utiliser un conduit 5 de recirculation 36 en matériau souple, permet d'implanter librement ce conduit 36 sans contraintes mécaniques notamment à cause du mouvement de la ligne d'échappement 22 par rapport au moteur 10.One of the advantages of the device of the invention is to be able to use a standard flexible coupling element 24 between the exhaust line 22 and the turbocharger 20 without having to integrate in this connection 24 a conduit 36 for recirculating the exhaust gases. 'exhaust. Indeed, the fact of using a recirculation duct 36 made of flexible material makes it possible to freely install this duct 36 without mechanical stresses, in particular because of the movement of the exhaust line 22 with respect to the motor 10.

Claims (7)

REVENDICATIONS 1. Dispositif de recirculation des gaz d'échappement pour un moteur à combustion interne (10) de véhicule automobile (8) qui comporte une ligne d'échappement (22) comprenant un organe de dépollution (26) des gaz d'échappement, le dispositif comportant un piquage de dérivation (30) des gaz d'échappement située en aval de l'organe de dépollution, et un conduit (32,36) de recirculation des gaz d'échappement s'étendant de la dérivation jusqu'à un système d'admission d'air du moteur (38,40), caractérisé en ce qu'au moins une partie du conduit (36) de recirculation des gaz d'échappement est constitué d'un matériau souple.  An exhaust gas recirculation device for an internal combustion engine (10) of a motor vehicle (8) which has an exhaust line (22) comprising an exhaust gas cleaning device (26), the a device comprising an exhaust gas bypass tap (30) located downstream of the pollution control device, and an exhaust gas recirculation duct (32,36) extending from the tap to a system engine air intake (38,40), characterized in that at least a portion of the exhaust gas recirculation duct (36) is made of a flexible material. 2. Dispositif de recirculation des gaz d'échappement selon la revendication 1, caractérisé en ce que le conduit de recirculation des gaz d'échappement (32,36) comporte un échangeur thermique (34) situé en aval du piquage de dérivation (30), et en amont de la partie du conduit (36) de recirculation en materiau souple.  2. Exhaust gas recirculation device according to claim 1, characterized in that the exhaust gas recirculation duct (32,36) comprises a heat exchanger (34) located downstream of the bypass tap (30) and upstream of the portion of the duct (36) recirculation flexible material. 3. Dispositif de recirculation des gaz d'échappement selon une des revendications précédentes, caractérisé en ce qu'il comporte un moyen (30) de régulation du débit des gaz vers le conduit de recirculation au niveau du piquage de dérivation (30).  3. Exhaust gas recirculation device according to one of the preceding claims, characterized in that it comprises a means (30) for regulating the flow of gas to the recirculation duct at the bypass tap (30). 4. Dispositif de recirculation des gaz d'échappement selon la 25 revendication 3, caractérisé en ce que le moyen de régulation (30) est une vanne trois voies.  4. Exhaust gas recirculation device according to claim 3, characterized in that the regulating means (30) is a three-way valve. 5. Dispositif de recirculation des gaz d'échappement selon la revendication 3, caractérisé en ce que le moyen de régulation (30) est un volet 30 étouffoir situé dans la ligne d'échappement (22) en aval du piquage de dérivation. 2910068 7  5. Exhaust gas recirculation device according to claim 3, characterized in that the regulating means (30) is a damper flap 30 located in the exhaust line (22) downstream of the bypass tap. 2910068 7 6. Dispositif de recirculation des gaz d'échappement selon une des revendications précédentes, caractérisé en ce que la partie du conduit (36) en matériau souple est un tuyau en matière polymère. 5  6. exhaust gas recirculation device according to one of the preceding claims, characterized in that the portion of the duct (36) of flexible material is a polymer material pipe. 5 7. Dispositif de recirculation des gaz d'échappement selon une des revendications précédentes, caractérisé en ce que la partie du conduit en matériau souple (36) est un tuyau en silicone.  7. exhaust gas recirculation device according to one of the preceding claims, characterized in that the portion of the duct of flexible material (36) is a silicone pipe.
FR0655466A 2006-12-13 2006-12-13 DEVICE FOR RECIRCULATING THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE Expired - Fee Related FR2910068B1 (en)

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Application Number Priority Date Filing Date Title
FR0655466A FR2910068B1 (en) 2006-12-13 2006-12-13 DEVICE FOR RECIRCULATING THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE
EP07301622A EP1936176A1 (en) 2006-12-13 2007-12-04 Device for recirculating exhaust gas from an internal combustion engine of an automobile

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FR0655466A FR2910068B1 (en) 2006-12-13 2006-12-13 DEVICE FOR RECIRCULATING THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE

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FR2910068A1 true FR2910068A1 (en) 2008-06-20
FR2910068B1 FR2910068B1 (en) 2009-01-23

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FR (1) FR2910068B1 (en)

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DE102010005803A1 (en) * 2010-01-27 2011-07-28 Audi Ag, 85057 Car with an exhaust system
EP3722587A1 (en) * 2019-04-12 2020-10-14 Borgwarner Emissions Systems Spain, S.L.U. Exhaust gas management system

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EP0647779A1 (en) * 1993-10-08 1995-04-12 Regie Nationale Des Usines Renault S.A. Exhaust gas recirculation device for an internal combustion engine
US20010008616A1 (en) * 2000-01-19 2001-07-19 Honda Giken Kogyo Kabushiki Kaisha Exhaust gas purification system of internal combustion engine
EP1422412A2 (en) * 2002-11-25 2004-05-26 Nissan Motor Co., Ltd. Exhaust gas recirculation device of internal combustion engine
EP1589213A1 (en) * 2004-04-21 2005-10-26 C.R.F. Società Consortile per Azioni Turbo-charged diesel engine with a "Long Route" exhaust gas recirculation system

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Publication number Priority date Publication date Assignee Title
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EP0647779A1 (en) * 1993-10-08 1995-04-12 Regie Nationale Des Usines Renault S.A. Exhaust gas recirculation device for an internal combustion engine
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FR2910068B1 (en) 2009-01-23
EP1936176A1 (en) 2008-06-25

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