EP2411641B1 - Motor vehicle exhaust system - Google Patents
Motor vehicle exhaust system Download PDFInfo
- Publication number
- EP2411641B1 EP2411641B1 EP10709915A EP10709915A EP2411641B1 EP 2411641 B1 EP2411641 B1 EP 2411641B1 EP 10709915 A EP10709915 A EP 10709915A EP 10709915 A EP10709915 A EP 10709915A EP 2411641 B1 EP2411641 B1 EP 2411641B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- outlet
- cooler
- transverse
- pollution
- fixing
- 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.)
- Not-in-force
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Classifications
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- 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
- F02M26/51—EGR valves combined with other devices, e.g. with intake valves or compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
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- 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
- F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
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- 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
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- 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
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/14—Plurality of outlet tubes, e.g. in parallel or with different length
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
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- 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
Definitions
- the invention relates to a motor vehicle exhaust system.
- the invention more particularly relates to a motor vehicle exhaust system comprising at least one pollution control device, in particular a catalyst or a particulate filter, comprising a first output connected to an exhaust line of an associated vehicle and a second outlet for withdrawing exhaust gases for recycling, said second outlet being connected to an inlet duct of an exhaust gas cooling exchanger having an outlet duct connected to a housing receiving a valve exhaust gas control.
- pollution control device in particular a catalyst or a particulate filter
- the housing receiving the exhaust gas control valve is generally attached to the engine block of the vehicle which is equipped by means of at least one stand and is connected to the outlet pipe of the exchanger cooling via a flexible conduit.
- This design is relatively fragile because the vibrations to which the casing of the control valve is subjected and the high temperature induced by the proximity of the depollution device can lead to a degradation of the flexible duct, thus causing leaks detrimental to the proper functioning of the control valve. vehicle engine.
- this design involves a relatively complex assembly, since it is necessary to first mount the exchanger on the pollution control member, then the housing of the control valve on the engine block, and finally to connect them by the flexible conduit.
- the invention overcomes this disadvantage by proposing a simplified assembly in which the housing of the control valve is fixed directly on the body of the exchanger.
- the invention proposes an exhaust circuit of the type described above, characterized in that the housing of the control valve comprises a soleplate intended to be fixed to an end plate of the outlet duct of the exchanger and in that said housing is fixed directly on a body of the exchanger.
- the circuit 10 is for example intended to be associated with a motor (not shown) of a motor vehicle.
- the circuit 10 comprises at least one depollution member 12, in particular a catalyst or a particulate filter, comprising an exhaust gas inlet duct 14, a first outlet 16 connected to an exhaust line (no shown) of an associated vehicle and a second outlet 18 for withdrawing exhaust gases for recycling.
- depollution member 12 in particular a catalyst or a particulate filter, comprising an exhaust gas inlet duct 14, a first outlet 16 connected to an exhaust line (no shown) of an associated vehicle and a second outlet 18 for withdrawing exhaust gases for recycling.
- the second outlet 18 is connected via an intermediate duct 20 to an inlet duct 22 of an exchanger 24 for cooling the exhaust gases.
- An outlet duct 26 of the exchanger 24 is connected to a housing 28 receiving an exhaust gas control valve via a flexible duct 27.
- the flexible conduit 27 comprises for example a clamp 30 on the outlet conduit 26 and a sole 32 for attachment to a sole 34 of the housing 28 of the control valve.
- the housing 28 of the control valve is fixed by means of the screws 36 on a stand 38 intended to be fixed to the vehicle engine.
- the vibrations to which the casing 28 of the control valve is subjected, cantilevered at the end of the stand 38 and the high temperature induced by the proximity of the depollution member 12 can lead to a degradation of the duct flexible 27. This degradation, may cause leaks or the introduction of air detrimental to the proper functioning of the exhaust gas recirculation, thus disrupting the operation of the engine of the vehicle.
- this design implies a complex constraining assembly, since it is necessary to first mount the exchanger 24 on the depollution member 12 and then the housing 28. the control valve on the stand 38 and the stand 38 on the engine block, and finally to connect them through the flexible conduit 27.
- the invention overcomes this disadvantage by proposing a simplified assembly in which the housing 28 of the regulating valve is fixed directly on the body 40 of the exchanger 24.
- the invention provides an exhaust circuit of the type described above, characterized in that the housing 28 of the control valve comprises a sole 34 intended to be fixed to an end plate 42 of the conduit 26 of the output of the exchanger 24 and in that said housing 28 is fixed directly on a body 40 of the exchanger 24.
- the body 40 of the exchanger is fixed on the body 12 of pollution control.
- the depollution member 12 comprises a body 42 of substantially axial orientation and in particular substantially cylindrical, a first end 44 of which comprises the conduit 14 for entering the exhaust gas, of which less a side wall 46 has the first outlet 16 of transverse orientation, and a second end 48 has the second outlet 16 of axial orientation and at least one transverse wall 50 for fixing to receive the body 40 of the exchanger.
- the body 40 of the exchanger 24 is substantially parallelepipedal and extends in the transverse direction.
- the body 40 of the exchanger 24 comprises in particular a horizontal face 52 below. It also comprises a rear face 54 from which protrudes the inlet duct 22, which is curved so as to extend below the lower horizontal face, and one end of which has a mating flange 56 for connection with the second outlet 18 of the depollution device.
- the body 40 of the exchanger 24 also has a first transverse face for fixing on the transverse wall for fixing the body of the depollution member, comprising at least a first fixing lug 58 on the transverse wall 50 for fixing the body of the the body 24 depollution.
- Coolant inlet and outlet ducts 60 project from a second opposite transverse face 64. These ducts 80, 62 are intended to be connected to a cooling system of the vehicle to ensure the cooling of the gases. exhaust.
- the body 40 of the exchanger 24 has an upper horizontal face 66, comprising at least one second lug 68 at the angle of attachment to the transverse wall for fixing the body of the depollution device, a third lug 70 at the angle of attachment. the casing of the regulating valve, and the outlet duct 26 of the exchanger 24.
- the second outlet 16 of the depollution member 24 is connected to the inlet duct 22 of the cooling exchanger via an intermediate duct 72 with a sole axial orientation 74 intended to be coupled to the second outlet 16 of the pollution control member and a sole 76 of transverse orientation intended to be coupled to the sole 56 of coupling the inlet duct 22 of the exchanger 24 .
- the invention greatly simplifies the mounting of an exhaust gas recirculation circuit.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Description
L'invention concerne un circuit d'échappement de véhicule automobile.The invention relates to a motor vehicle exhaust system.
L'invention concerne plus particulièrement un circuit d'échappement de véhicule automobile comportant au moins un organe de dépollution, notamment un catalyseur ou un filtre à particules, comportant un première sortie reliée à une ligne d'échappement d'un véhicule associé et une seconde sortie destinée à prélever des gaz d'échappements en vue de leur recyclage, ladite seconde sortie étant reliée à un conduit d'entrée d'un échangeur de refroidissement des gaz d'échappement dont un conduit de sortie est relié à un boîtier recevant une vanne de régulation des gaz d'échappement.The invention more particularly relates to a motor vehicle exhaust system comprising at least one pollution control device, in particular a catalyst or a particulate filter, comprising a first output connected to an exhaust line of an associated vehicle and a second outlet for withdrawing exhaust gases for recycling, said second outlet being connected to an inlet duct of an exhaust gas cooling exchanger having an outlet duct connected to a housing receiving a valve exhaust gas control.
On connaît de nombreux exemples de circuits d'échappement de ce type, notamment le document
Dans un tel circuit, le boîtier recevant la vanne de régulation des gaz d'échappement est généralement fixé au bloc moteur du véhicule qui en est équipé par l'intermédiaire d'au moins une béquille et est relié au conduit de sortie de l'échangeur de refroidissement par l'intermédiaire d'un conduit flexible.In such a circuit, the housing receiving the exhaust gas control valve is generally attached to the engine block of the vehicle which is equipped by means of at least one stand and is connected to the outlet pipe of the exchanger cooling via a flexible conduit.
Cette conception est relativement fragile car les vibrations auxquelles est soumis le boîtier de la vanne de régulation et la température élevée induite par la proximité de l'organe de dépollution peuvent conduire à une dégradation du conduit flexible, occasionnant alors des fuites préjudiciables au bon fonctionnement du moteur du véhicule.This design is relatively fragile because the vibrations to which the casing of the control valve is subjected and the high temperature induced by the proximity of the depollution device can lead to a degradation of the flexible duct, thus causing leaks detrimental to the proper functioning of the control valve. vehicle engine.
Par ailleurs cette conception implique un montage relativement complexe, puisqu'il est nécessaire de monter d'abord l'échangeur sur l'organe de dépollution, puis le boîtier de la vanne de régulation sur le bloc moteur, et enfin de les relier par le conduit flexible.Furthermore, this design involves a relatively complex assembly, since it is necessary to first mount the exchanger on the pollution control member, then the housing of the control valve on the engine block, and finally to connect them by the flexible conduit.
L'invention remédie à cet inconvénient en proposant un montage simplifié dans lequel le boîtier de la vanne de régulation est fixé directement sur le corps de l'échangeur.The invention overcomes this disadvantage by proposing a simplified assembly in which the housing of the control valve is fixed directly on the body of the exchanger.
Dans ce but, l'invention propose un circuit d'échappement du type décrit précédemment, caractérisé en ce que le boîtier de la vanne de régulation, comporte une semelle destinée à être fixée à une semelle d'extrémité du conduit de sortie de l'échangeur et en ce que ledit boîtier est fixé directement sur un corps de l'échangeur.For this purpose, the invention proposes an exhaust circuit of the type described above, characterized in that the housing of the control valve comprises a soleplate intended to be fixed to an end plate of the outlet duct of the exchanger and in that said housing is fixed directly on a body of the exchanger.
Selon d'autres caractéristiques de l'invention :
- le corps de l'échangeur est fixé sur l'organe de dépollution,
- l'organe de dépollution comporte un corps d'orientation sensiblement axile dont une première extrémité comporte un conduit d'entrée des gaz d'échappement, dont au moins une paroi latérale comporte la première sortie d'orientation transversale, et dont une seconde extrémité comporte la seconde sortie d'orientation axiale et au moins une paroi transversale de fixation destinée à recevoir le corps de l'échangeur,
- le corps de l'échangeur est sensiblement parallélépipédique, s'étend suivant la direction transversale, et comporte :
- une face horizontale inférieure,
- une face arrière à partir de laquelle fait saillie le conduit d'entrée, qui est recourbé de manière à s'étendre sous la face horizontale inférieure, et dont une extrémité comporte une semelle d'accouplement.
- une première face transversale de fixation sur la paroi transversale de fixation du corps de l'organe de dépollution, comportant au moins une première patte de fixation sur la paroi transversale de fixation du corps de l'organe de dépollution,
- une seconde face transversale opposée à partir de laquelle font saillie des conduits d'entrée et de sortie de fluide de refroidissement.
- une face horizontale supérieure, comportant au moins une seconde patte en équerre de fixation sur la paroi transversale de fixation du corps de l'organe de dépollution, une troisième patte en équerre de fixation du boîtier de la vanne de régulation, et le conduit de sortie de l'échangeur,
- la seconde sortie de l'organe de dépollution est reliée au conduit d'entrée de l'échangeur de refroidissement par l'intermédiaire d'un conduit intermédiaire coudé comportant une semelle d'orientation axiale destinée à être accouplée à la seconde sortie de l'organe de dépollution et une semelle d'orientation transversale destinée à être accouplée à la semelle d'accouplement du conduit d'entrée de l'échangeur.
- the body of the exchanger is fixed on the depollution device,
- the depollution member comprises a substantially axially oriented body, a first end of which comprises an exhaust gas inlet duct, at least one side wall of which has the first transversally oriented outlet, and a second end of which comprises the second axial orientation outlet and at least one transverse fixing wall intended to receive the body of the exchanger,
- the body of the exchanger is substantially parallelepipedal, extends in the transverse direction, and comprises:
- a lower horizontal face,
- a rear face from which protrudes the inlet duct, which is curved so as to extend below the lower horizontal face, and one end of which comprises a mating flange.
- a first transverse fixing face on the transverse wall for fixing the body of the depollution member, comprising at least a first fixing lug on the transverse wall for fixing the body of the depollution device,
- a second opposite transverse face from which project cooling fluid inlet and outlet ducts.
- an upper horizontal face, comprising at least a second leg bracket fixing on the transverse wall for fixing the body of the pollution control member, a third bracket bracket for fixing the housing of the control valve, and the outlet duct of the exchanger,
- the second outlet of the depollution unit is connected to the inlet duct of the cooling exchanger via an intermediate elbow duct comprising an axially oriented base intended to be coupled to the second outlet of the depollution member and a transverse orientation sole intended to be coupled to the mating flange of the inlet duct of the exchanger.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détailiée qui suit pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels :
- la
figure 1 est une vue d'ensemble en perspective éclatée d'un circuit selon un état antérieur de la technique ; - la
figure 2 est une vue d'ensemble en perspective assemblée d'un circuit selon un état antérieur de la technique ; - la
figure 3 est une vue est une vue d'ensemble en perspective éclatée d'un circuit selon l'invention, - la
figure 4 est une vue est une vue d'ensemble en perspective assemblée d'un circuit selon l'invention,
- the
figure 1 is an exploded perspective view of a circuit according to a prior art; - the
figure 2 is an assembled perspective view of a circuit according to a prior art; - the
figure 3 is a view is an exploded perspective view of a circuit according to the invention, - the
figure 4 is a view is an assembled perspective view of a circuit according to the invention,
Dans la description qui va suivre, des chiffres de référence identiques désignent des pièces identiques ou ayant des fonctions similaires.In the following description, like reference numerals designate like parts or having similar functions.
On a représenté sur la
Le circuit 10 est par exemple destiné à être associé à un moteur (non représenté) d'un véhicule automobile.The circuit 10 is for example intended to be associated with a motor (not shown) of a motor vehicle.
De manière connue le circuit 10 comporte au moins un organe 12 de dépollution, notamment un catalyseur ou un filtre à particules, comportant un conduit 14 d'entrée des gaz d'échappement, une première sortie 16 reliée à une ligne d'échappement (non représentée) d'un véhicule associé et une seconde sortie 18 destinée à prélever des gaz d'échappements en vue de leur recyclage.In known manner the circuit 10 comprises at least one
La seconde sortie 18 est reliée par l'intermédiaire d'un conduit intermédiaire 20 à un conduit d'entrée 22 d'un échangeur 24 de refroidissement des gaz d'échappement. Un conduit de sortie 26 de l'échangeur 24 est relié à un boîtier 28 recevant une vanne de régulation des gaz d'échappement par l'intermédiaire d'un conduit flexible 27.The
Le conduit flexible 27 comporte par exemple un collier de fixation 30 sur le conduit de sortie 26 et une semelle 32 pour sa fixation sur une semelle 34 du boîtier 28 de la vanne de régulation.The
Le boîtier 28 de la vanne de régulation, est fixé par l'intermédiaire des vis 36 sur une béquille 38 destiné à être fixée sur le moteur du véhicule.The
Selon cette conception, les vibrations auxquelles est soumis le boîtier 28 de la vanne de régulation, en porte à faux au bout de la béquille 38 et la température élevée induite par la proximité de l'organe 12 de dépollution peuvent conduire à une dégradation du conduit flexible 27. Cette dégradation, peut occasionner des fuites ou l'introduction d'air préjudiciables au bon fonctionnement du recyclage des gaz d'échappement, perturbant alors le fonctionnement du moteur du véhicule.According to this design, the vibrations to which the
Par ailleurs cette conception implique un montage contraignant complexe, puisqu'il est nécessaire de monter d'abord l'échangeur 24 sur l'organe 12 de dépollution, puis le boîtier 28 de la vanne de régulation sur la béquille 38 et la béquille 38 sur le bloc moteur, et enfin de les relier par le conduit flexible 27.Furthermore, this design implies a complex constraining assembly, since it is necessary to first mount the
L'invention remédie à cet inconvénient en proposant un montage simplifié dans lequel le boîtier 28 de la vanne de régulation est fixé directement sur le corps 40 de l'échangeur 24.The invention overcomes this disadvantage by proposing a simplified assembly in which the
Dans ce but, comme l'illustrent les
Avantageusement, le corps 40 de l'échangeur est fixé sur l'organe 12 de dépollution.Advantageously, the
Dans le mode de réalisation préféré de l'invention, l'organe 12 de dépollution comporte un corps 42 d'orientation sensiblement axiale et notamment sensiblement cylindrique dont une première extrémité 44 comporte le conduit 14 d'entrée des gaz d'échappement, dont au moins une paroi latérale 46 comporte la première sortie 16 d'orientation transversale, et dont une seconde extrémité 48 comporte la seconde sortie 16 d'orientation axiale et au moins une paroi transversale 50 de fixation destinée à recevoir le corps 40 de l'échangeur.In the preferred embodiment of the invention, the
Complémentairement, le corps 40 de l'échangeur 24 est sensiblement parallélépipédique et s'étend suivant la direction transversale.Complementarily, the
Le corps 40 de l'échangeur 24 comporte notamment une face horizontal 52 inférieure. Il comporte aussi une face arrière 54 à partie de laquelle fait saillie le conduit d'entrée 22, qui est recourbé de manière à s'étendre sous la face horizontale inférieure, et dont une extrémité comporte une semelle 56 d'accouplement permettant la liaison avec la seconde sortie 18 de l'organe de dépollution.The
La corps 40 de l'échangeur 24 comporte aussi une première face transversale de fixation sur la paroi transversale de fixation du corps de l'organe de dépollution, comportant au moins une première patte 58 de fixation sur la paroi transversale 50 de fixation du corps de l'organe 24 de dépollution.The
Des conduits d'entrée 60 et de sortie 62 de fluide de refroidissement font saillie à partir d'une seconde face transversale opposée 64. Ces conduits 80, 62 sont destinés à être reliés à un circuit de refroidissement du véhicule pour assurer le refroidissement des gaz d'échappement.Coolant inlet and
Enfin le corps 40 de l'échangeur 24 comporte une face horizontal supérieure 66, comportant au moins une seconde patte 68 en équerre de fixation sur la paroi transversale de fixation du corps de l'organe de dépollution, une troisième patte 70 en équerre de fixation du boîtier de la vanne de régulation, et le conduit 26 de sortie de l'échangeur 24.Finally, the
Dans le mode de réalisation préféré de l'invention, la seconde sortie 16 de l'organe 24 de dépollution est reliée au conduit d'entrée 22 de l'échangeur de refroidissement par l'intermédiaire d'un conduit intermédiaire coudé 72 comportant une semelle d'orientation axiale 74 destinée à être accouplée à la seconde sortie 16 de l'organe de dépollution et une semelle 76 d'orientation transversale destinée à être accouplée à la semelle 56 d'accouplement du conduit d'entrée 22 de l'échangeur 24.In the preferred embodiment of the invention, the
Dans cette configuration, le montage s'effectue de la manière suivante :
- le conduit intermédiaire 72 est fixé sur l'organe 12 de dépollution, puis l'échangeur 24 est fixé sur le conduit intermédiaire 22 et on fixe alors l'échangeur 24 sur l'organe 12 de dépollution. Enfin le
boîtier 28 de la vanne de régulation est fixé sur l'échangeur 24.
- the intermediate pipe 72 is fixed on the
body 12 of pollution control, then theheat exchanger 24 is fixed on theintermediate pipe 22 and then theheat exchanger 24 is fixed on thebody 12 of pollution control. Finally, thehousing 28 of the control valve is fixed on theexchanger 24.
L'invention permet de simplifier considérablement le montage d'un circuit de recyclage des gaz d'échappement.The invention greatly simplifies the mounting of an exhaust gas recirculation circuit.
Claims (5)
- Motor vehicle exhaust system (10) comprising at least one pollution-reducing member (12), notably a catalytic converter or a particle filter, comprising a first outlet (16) connected to an exhaust line of an associated vehicle and a second outlet (18) intended to tap off exhaust gases in order to recirculate them, said second outlet (18) being connected to an inlet pipe (22) of an exhaust gas cooler (24), an outlet pipe (26) of which is connected to a casing (28) housing an exhaust gas control valve,
characterized in that the casing (28) housing the control valve comprises a flange (34) intended to be fixed to an end flange (32) of the outlet pipe (26) of the cooler (24), and in that said casing (28) is fixed directly to a body (40) of the cooler (24) . - Exhaust system (10) according to the preceding claim, characterized in that the body (40) of the cooler (24) is fixed to the pollution-reducing member (12) .
- Exhaust system (10) according to the preceding claim, characterized in that the pollution-reducing member (12) comprises a body (42) oriented substantially axially and a first end (44) of which comprises an inlet pipe (14) for the exhaust gases, of which at least one side wall (46) comprises the first outlet (16) of transverse orientation, and of which a second end (48) comprises the second outlet (18) of axial orientation and at least one transverse fixing wall (50) intended to take the body (40) of the cooler.
- Exhaust system (10) according to the preceding claim, characterized in that the body (40) of the cooler (24) is substantially parallelepipedal, extends in the transverse direction, and comprises:- a horizontal lower face (52),- a rear face (54) from which the inlet pipe (22) projects, which is curved so that it extends under the horizontal lower face (52), and one end of which comprises a coupling flange (56),- a first transverse face for fixing to the transverse fixing wall of the body of the pollution-reducing member, comprising at least one first fixing lug (58) for fixing to the transverse fixing wall (50) of the body (42) of the pollution-reducing member (12),- an opposite second transverse face (64) from which there project an inlet pipe (60) and an outlet pipe (62) for the coolant,- a horizontal upper face (66) comprising at least a second lug (68) in the form of angle bracket for fixing to the transverse fixing wall (50) of the body of the pollution-reducing member (12), a third lug (70) in the form of an angle bracket for fixing the casing (28) housing the control valve, and the outlet pipe (26) of the cooler (24).
- Exhaust system (10) according to the preceding claim, characterized in that the second outlet (18) of the pollution-reducing member (12) is connected to the inlet pipe of the cooler by a bent intermediate pipe (72) comprising a flange (74) of axial orientation intended to be coupled to the second outlet (18) of the pollution-reducing member (12) and a flange (76) of transverse orientation intended to be connected to the coupling flange (56) of the inlet pipe (22) of the cooler (24).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0951819A FR2943384B1 (en) | 2009-03-23 | 2009-03-23 | EXHAUST CIRCUIT FOR MOTOR VEHICLE |
PCT/FR2010/050339 WO2010109104A1 (en) | 2009-03-23 | 2010-02-26 | Motor vehicle exhaust system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2411641A1 EP2411641A1 (en) | 2012-02-01 |
EP2411641B1 true EP2411641B1 (en) | 2012-11-28 |
Family
ID=41213296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10709915A Not-in-force EP2411641B1 (en) | 2009-03-23 | 2010-02-26 | Motor vehicle exhaust system |
Country Status (4)
Country | Link |
---|---|
US (1) | US8769930B2 (en) |
EP (1) | EP2411641B1 (en) |
FR (1) | FR2943384B1 (en) |
WO (1) | WO2010109104A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008038235A1 (en) * | 2008-08-18 | 2010-02-25 | Mahle International Gmbh | Internal combustion engine |
EP2743488A1 (en) * | 2012-12-11 | 2014-06-18 | BorgWarner Inc. | Built-in exhaust gas management device |
JP5920381B2 (en) * | 2014-02-27 | 2016-05-18 | 株式会社デンソー | Intake and exhaust system for internal combustion engine |
EP2944913B1 (en) * | 2014-05-16 | 2018-09-05 | Borgwarner Emissions Systems Spain, S.L.U. | Heat exchange device |
DE102017204897A1 (en) * | 2017-03-23 | 2018-09-27 | Volkswagen Aktiengesellschaft | Internal combustion engine and exhaust aftertreatment system for an internal combustion engine |
DE102017212393A1 (en) | 2017-07-19 | 2019-01-24 | Mahle International Gmbh | Area-wise flexible exhaust gas recirculation line |
FR3074523B1 (en) * | 2017-12-04 | 2021-02-19 | Faurecia Systemes Dechappement | COMPACT EXHAUST GAS PURIFICATION AND RECIRCULATION DEVICE |
JP6969409B2 (en) | 2018-01-26 | 2021-11-24 | マツダ株式会社 | Engine intake / exhaust device |
JP2019127917A (en) * | 2018-01-26 | 2019-08-01 | マツダ株式会社 | Intake/exhaust system for engine |
DE102018109529B4 (en) * | 2018-04-20 | 2019-11-28 | Tenneco Gmbh | Retaining flange for metering valve |
JP7067243B2 (en) * | 2018-04-26 | 2022-05-16 | トヨタ自動車株式会社 | Internal combustion engine |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3833957A1 (en) * | 1988-10-06 | 1990-04-12 | Daimler Benz Ag | DEVICE FOR EXHAUST GAS RECIRCULATION IN DIESEL ENGINES |
DE19750588B4 (en) | 1997-11-17 | 2016-10-13 | MAHLE Behr GmbH & Co. KG | Device for exhaust gas recirculation for an internal combustion engine |
GB9823669D0 (en) * | 1998-10-30 | 1998-12-23 | Serck Heat Transfer Limited | Exhaust gas cooler |
FR2801340B1 (en) * | 1999-11-22 | 2002-02-15 | Peugeot Citroen Automobiles Sa | DEVICE FOR SELECTIVELY COOLING EXHAUST GASES OF A MOTOR VEHICLE |
GB0018406D0 (en) * | 2000-07-28 | 2000-09-13 | Serck Heat Transfer Limited | EGR bypass tube cooler |
US6598388B2 (en) * | 2001-02-01 | 2003-07-29 | Cummins, Inc. | Engine exhaust gas recirculation particle trap |
DE102005021397A1 (en) * | 2004-05-07 | 2006-01-12 | Behr Gmbh & Co. Kg | Heat exchanger for exhaust cooler has baffle plate extending from switching flap to beginning of bypass channel |
US7251932B2 (en) * | 2004-11-08 | 2007-08-07 | Southwest Research Institute | Exhaust system and method for controlling exhaust gas flow and temperature through regenerable exhaust gas treatment devices |
US7195060B2 (en) * | 2005-04-01 | 2007-03-27 | Dana Canada Corporation | Stacked-tube heat exchanger |
JP4991764B2 (en) * | 2006-01-19 | 2012-08-01 | ベール ゲーエムベーハー ウント コー カーゲー | Exhaust gas cooling device |
JP4281789B2 (en) * | 2006-12-06 | 2009-06-17 | トヨタ自動車株式会社 | Exhaust heat recovery device |
US8443593B2 (en) * | 2008-12-12 | 2013-05-21 | Westcast Industries, Inc. | Liquid-cooled exhaust valve assembly |
-
2009
- 2009-03-23 FR FR0951819A patent/FR2943384B1/en not_active Expired - Fee Related
-
2010
- 2010-02-26 US US13/256,640 patent/US8769930B2/en not_active Expired - Fee Related
- 2010-02-26 EP EP10709915A patent/EP2411641B1/en not_active Not-in-force
- 2010-02-26 WO PCT/FR2010/050339 patent/WO2010109104A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP2411641A1 (en) | 2012-02-01 |
FR2943384A1 (en) | 2010-09-24 |
US8769930B2 (en) | 2014-07-08 |
WO2010109104A1 (en) | 2010-09-30 |
FR2943384B1 (en) | 2011-03-04 |
US20120301364A1 (en) | 2012-11-29 |
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