WO2008028637A1 - Système d'échappement d'un véhicule automobile - Google Patents

Système d'échappement d'un véhicule automobile Download PDF

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Publication number
WO2008028637A1
WO2008028637A1 PCT/EP2007/007725 EP2007007725W WO2008028637A1 WO 2008028637 A1 WO2008028637 A1 WO 2008028637A1 EP 2007007725 W EP2007007725 W EP 2007007725W WO 2008028637 A1 WO2008028637 A1 WO 2008028637A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
exhaust
gas purification
motor vehicle
exhaust system
Prior art date
Application number
PCT/EP2007/007725
Other languages
German (de)
English (en)
Inventor
Josef Günther
Gustav Huber
Thomas Beckmann
Harald Liegert
Heinrich Reister
Thomas Binner
Ingrid Endrejat
Ralph Dlugosz
Original Assignee
Daimler Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daimler Ag filed Critical Daimler Ag
Publication of WO2008028637A1 publication Critical patent/WO2008028637A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0884—Insulating elements, e.g. for sound insulation for mounting around noise sources, e.g. air blowers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0861—Insulating elements, e.g. for sound insulation for covering undersurfaces of vehicles, e.g. wheel houses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0876—Insulating elements, e.g. for sound insulation for mounting around heat sources, e.g. exhaust pipes
    • 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
    • F01N13/009—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 having two or more separate purifying devices arranged in series
    • 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
    • F01N13/14—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 having thermal insulation
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
    • F01N2260/022—Exhaust treating devices having provisions not otherwise provided for for cooling the device using air
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/10—Plastic foam
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • the invention relates to an exhaust system of a motor vehicle having the features of the preamble of claim 1.
  • an exhaust system for a motor vehicle which has a first exhaust gas purification device and a second purification device connected downstream of the first exhaust gas purification device.
  • the first exhaust gas purification device is designed as a series connection of an oxidation catalytic converter and a particle filter
  • the second exhaust gas purification device is designed as an SCR catalytic converter.
  • an adding device for adding a reducing liquid into the exhaust gas is provided. Exhaust systems of this type can usually not be completely accommodated in the engine compartment of the motor vehicle due to their size and are therefore usually at least partially disposed in the underbody area of the motor vehicle.
  • the object of the invention is to provide an exhaust gas purification device with improved operational reliability.
  • a flow-guiding device for ambient air substantially shielding the adding device relative to the floor construction of the motor vehicle is provided in such a way that when the motor vehicle is moved in the normal direction of travel, ambient air is conveyed in the rail-side underbody area to the adding device.
  • the feeder is cooled. In this way, overheating of the feeder and consequent malfunction of the exhaust system can be avoided.
  • the adding device is configured to add a fluid additive into an exhaust pipe section connecting an exhaust gas outlet region of the first exhaust gas purification device to an exhaust gas inlet region of the second exhaust gas purification device.
  • the additive can be a gaseous substance, such as air or a gaseous fuel, as well as a liquid substance, such as fuel or an aqueous medium.
  • the adding device can be configured, for example, as a secondary air supply device or as an injector, nozzle or valve.
  • the adding device therefore comprises corresponding connections for the Feed and possibly a return for the aggregate on. Furthermore, connections for operating materials such as lubricants or coolants and electrical connections can be provided.
  • the first and / or the second exhaust gas purification device can be embodied as a catalytic converter or particle filter unit, if appropriate also in combination.
  • these units are arranged wholly or at least partially in the underbody area of the motor vehicle.
  • the underfloor region is understood to be the intermediate space lying between the road surface and a vehicle floor construction of the motor vehicle.
  • the vehicle floor construction typically comprises components formed as flat molded parts which delimit the vehicle toward the roadway side. These may be formed, for example, as underbody paneling, underrun protection, shielding plate or noise enclosure.
  • the flow guiding device is preferably designed as a guide plate and is arranged and shaped in such a way that when the vehicle is moving normally in the underbody area, the prevailing wind or cool ambient air is conducted in the direction of the adding device.
  • the flow guide is designed as a separate component, which is in particular releasably attached to a part of the exhaust gas purification device and / or to the vehicle underbody construction.
  • the flow guide may also be formed as an integral part of a part of the underbody construction.
  • the flow-guiding device is aerodynamically favorably shaped, so that the flow line takes place while largely avoiding swirling or substantially free of backpressure. On In this way, an increase in driving resistance and driving noise are avoided.
  • the flow-guiding device can advantageously additionally be arranged or shaped in such a way that the adding device is shielded from heat radiation or convection emanating from the exhaust-gas purification devices or from exhaust-gas conduit parts.
  • Particularly advantageous is a configuration such that the adding device is additionally protected from emerging from the engine compartment of the motor vehicle in the direction of the underbody area hot air currents.
  • the flow guiding device extends from the adding device into the exhaust gas outlet region of the first exhaust gas purification device. In this way, effective shielding of the mostly highly heated exhaust gas outlet region of the first exhaust gas purification device is ensured. In addition, an advantageous flow guidance of comparatively cold ambient air in the underbody area is made possible. It can also be provided that the flow guiding device covers the adding device in an overlapping manner.
  • the flow-guiding device screens the exhaust-gas outlet region of the first exhaust-gas purification device at least partially relative to the road-surface-side underbody region.
  • the flow guiding device is thus arranged at least partially below the exhaust gas outlet region of the first exhaust gas purification device.
  • the flow guiding device is designed as a thin molded part.
  • the flow guiding device comprises a formed sheet metal part with a material thickness of about 0.2 mm to 2.0 mm.
  • perforations in particular with schaufeiförmiger training may be provided to support the flow guide.
  • the sheet metal part can also serve as a carrier for layers applied thereto or attachments such as brackets.
  • the flow-guiding device is made of a material which has sound-insulating components.
  • the flow-conducting effect is connected to an acoustic damping in an advantageous manner.
  • a noise emission from the exhaust system or from the underbody construction or from the adding device is thus reduced.
  • an improvement of the vehicle comfort impression is achieved in an advantageous manner.
  • the flow guiding device is made of a composite material, comprising a foam material, in particular foamed, made. This results in a high dimensional stability at the same time light construction.
  • a foam material in particular foamed, made.
  • This layer may be a metal foam or a plastic foam.
  • the exhaust pipe section on a particular S-shaped curved portion, wherein the adding device is arranged at the downstream end of the bent portion seen in the exhaust gas flow direction.
  • This arrangement of the adding device at a transition from a curved to a straight-running region of the exhaust pipe section allows on the one hand a particularly effective shielding of the adding device against heat radiation and convection starting from hot parts of the exhaust system by means of a straightforward flow device.
  • this makes possible an introduction of the additive into the rectilinear region of the exhaust-gas conduit section, which is approximately rectified for the exhaust-gas flow, whereby an inner-wall wetting of the exhaust-gas conduit section can be largely avoided when using a liquid additive.
  • Showing: 1 is a schematic representation of an underbody area of a motor vehicle with an associated exhaust system
  • FIG. 2 shows a detail of the underbody region according to FIG. 1, FIG.
  • FIG. 3 is a schematic sectional view of a portion of the exhaust system according to Fig.l,
  • Fig. 4 is a schematic side view of the exhaust system according to FIGS. 1 and
  • Fig. 5 is a cross-sectional view of a preferably used composite material for a flow-guiding device of the exhaust system according to the invention.
  • FIG. 1 shows an overview of an underbody area of a motor vehicle belonging to the front vehicle part.
  • parts of the vehicle underbody construction such as an underbody paneling 1, a cover 2 serving as underrun protection and soundproofing, a lower engine compartment cover 3 and a shielding plate 4 for an exhaust system 5 can be seen in particular.
  • Shown are parts of a Vorderachskonstrutation 6, a motor cross member 7 and a transfer case 8.
  • the part of the exhaust system 5 shown here comprises a first exhaust gas purification device 9 and a downstream second exhaust gas purification device 10.
  • an exhaust pipe section 11 connects an exhaust gas outlet region of the first exhaust gas purification device 9 to the exhaust gas inlet region of the second exhaust gas purification device 10.
  • a strut 12 serves to support the exhaust gas system.
  • an adding device 13 is arranged at the downstream end of an S-shaped portion IIa of the exhaust pipe section 11, which can be seen more clearly in the representation of a detail of the underbody region shown in FIG.
  • the adding device 13 is exposed to an increased temperature load under certain operating conditions, in particular with an increased power output of the drive motor.
  • a flow-guiding device 14 is provided according to the invention for the exhaust system 5.
  • FIG. 3 a side view of components shown in FIG. 1 is shown in longitudinal section.
  • the flow guiding device 14 is preferably designed as a shaped or flat material component which extends from the curved portion IIa of the exhaust gas conduit section 11 to the exhaust gas outlet region 9c of the first exhaust gas purification device 9 and the addition of Device 13 partially surrounds.
  • the largest longitudinal extent about 200 mm to 500 mm
  • the largest transverse dimension about 50 mm to 200 mm.
  • the flow guiding device 14 is designed and arranged in such a way that on the one hand the adding device 13 is covered in the direction of the shielding plate 4 arranged above and on the other hand the exhaust gas outlet region 9c of the first exhaust gas cleaning device 9 is partially shielded with respect to the underside region on the road surface. Due to this embodiment and arrangement, the flow guiding device 14 fulfills several functions.
  • the flow guiding device 14 shields the adding device 13 from a heat radiation emanating from hot parts of the exhaust system, in particular from the exhaust gas outlet region 9c of the first exhaust gas purification device 9 and schematically represented by dotted arrows 17.
  • the first exhaust gas purification device 9 comprises a regenerable particle filter by soot burn-off thermal 9b, as heated at a thermal exhaust particulate filter regeneration temperatures of 600 0 C and correspondingly Exhaust system components result.
  • the first exhaust gas purification device 9 further comprises an upstream oxidation catalyst 9a.
  • the flow guiding device 14 is preferably designed or arranged such that contact of the adding device 13 with ambient air heated on hot parts of the exhaust system 5 is largely avoided.
  • a preferably forming flow of hot air in the region between the exhaust system 5 and the shielding plate 4 is shown schematically by the dashed arrow 16.
  • heat supply to the adding device 13 is thus reduced on the one hand by shielding of heat radiation and convection, on the other hand heat dissipation is achieved by the effected ambient air flow in the roadside underbody region.
  • the temperature of the adding device 13 can be kept low. This avoids malfunctions and failures caused by overheating.
  • the adding device 13 and associated connections and lines can be made of less heat-resistant material and thus cheaper.
  • FIG. 4 shows, for further clarification, a perspective side view of the exhaust system 5 shown in FIG. 1 from below.
  • a preferably provided shell-shaped formation of the flow-guiding device 14 can be seen, in which the adding device 13 is preferably arranged largely.
  • Particularly preferred is an embodiment in which the adding device 13 to the vehicle side almost hemispherical or over a solid angle of approximately 2 ⁇ of the flow guide 14 is surrounded.
  • the shape of the flow guide 14 causes a local aerodynamic suction effect for present in the underbody wind or ambient air flows, so that cool ambient air is passed to the adding device 13.
  • a layered embodiment of the flow-guiding device 14 is preferably such that a sound-absorbing coating or layer is applied to a carrier, which is preferably formed from a thin, formed sheet metal.
  • a particularly preferred embodiment is shown in a schematic sectional view.
  • a preferred embodiment of the composite material provided for the flow directing device 14 includes a thin metallic support 18 having a thickness in the range of about 0.5 mm to 2 mm. This is followed by a layer of sound-absorbing absorber material 19 such as an aluminum or plastic foam or a material formed from glass or silicate fibers.
  • the preferred material thickness is about 2 mm to 20 mm.
  • a cover may preferably a micro-perforated trained thin film 21 may be provided with about 0.05 mm thickness.
  • a studded and / or perforated cover plate 20 is preferably provided, which preferably has a material thickness in the range of about 1.0 mm to 5.0 mm.
  • the nub or hole diameter may for example be about 2 mm to 6 mm. It is preferred if the said dimensions and / or the hole portion of the cover plate are selected depending on the frequency range of the sound to be damped.
  • the flow guiding device 14 is designed so that the absorber material side is the side facing the adding device 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne un système d'échappement d'un véhicule automobile, avec un premier dispositif (9) d'épuration des gaz d'échappement et un deuxième dispositif (10) d'épuration des gaz d'échappement, monté en aval du premier. Le système d'échappement (5) présente en outre un dispositif d'apport (13) disposé entre les dispositifs (9, 10) d'épuration des gaz d'échappement, pour apporter notamment une solution d'urée. Selon l'invention, il est prévu un dispositif (14) de guidage de flux pour l'air ambiant qui, afin de refroidir le dispositif d'apport (13), peut diriger vers le dispositif d'apport de l'air ambiant provenant du dessous du véhicule automobile, côté chaussée.
PCT/EP2007/007725 2006-09-06 2007-09-05 Système d'échappement d'un véhicule automobile WO2008028637A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006041663.5 2006-09-06
DE102006041663A DE102006041663A1 (de) 2006-09-06 2006-09-06 Abgasanlage eines Kraftfahrzeugs

Publications (1)

Publication Number Publication Date
WO2008028637A1 true WO2008028637A1 (fr) 2008-03-13

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ID=38829550

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Application Number Title Priority Date Filing Date
PCT/EP2007/007725 WO2008028637A1 (fr) 2006-09-06 2007-09-05 Système d'échappement d'un véhicule automobile

Country Status (2)

Country Link
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WO (1) WO2008028637A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3023821A1 (fr) * 2014-07-18 2016-01-22 Peugeot Citroen Automobiles Sa Agencement sous-plancher de vehicule automobile
EP2631449B1 (fr) * 2012-02-22 2020-07-29 ISOLITE GmbH Absorbeur acoustique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011009620A1 (de) * 2011-01-28 2012-08-02 Emitec Gesellschaft Für Emissionstechnologie Mbh Abgasbehandlungsvorrichtung mit einem Injektor zur Zufuhr eines Fluids
DE102021130277A1 (de) 2021-11-19 2023-05-25 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Antriebswellengehäuseanordnung zur Anordnung an einer Hinterachse eines Kraftfahrzeugs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999039809A1 (fr) * 1998-02-06 1999-08-12 Johnson Matthey Public Limited Company SYSTEME DE REDUCTION DE NOx DANS DES GAZ D'ECHAPPEMENT
DE19919426C1 (de) * 1999-04-28 2000-03-30 Siemens Ag Ventilaufnahmevorrichtung für ein Dosierventil einer Abgasnachbehandlungsanlage
US20050235632A1 (en) * 2004-04-26 2005-10-27 Combustion Components Associates, Inc. Methods and apparatus for injecting atomized fluid
FR2869585A1 (fr) * 2004-04-29 2005-11-04 Peugeot Citroen Automobiles Sa Element de carenage pour surfaces de dessous de vehicule

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999039809A1 (fr) * 1998-02-06 1999-08-12 Johnson Matthey Public Limited Company SYSTEME DE REDUCTION DE NOx DANS DES GAZ D'ECHAPPEMENT
DE19919426C1 (de) * 1999-04-28 2000-03-30 Siemens Ag Ventilaufnahmevorrichtung für ein Dosierventil einer Abgasnachbehandlungsanlage
US20050235632A1 (en) * 2004-04-26 2005-10-27 Combustion Components Associates, Inc. Methods and apparatus for injecting atomized fluid
FR2869585A1 (fr) * 2004-04-29 2005-11-04 Peugeot Citroen Automobiles Sa Element de carenage pour surfaces de dessous de vehicule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2631449B1 (fr) * 2012-02-22 2020-07-29 ISOLITE GmbH Absorbeur acoustique
FR3023821A1 (fr) * 2014-07-18 2016-01-22 Peugeot Citroen Automobiles Sa Agencement sous-plancher de vehicule automobile

Also Published As

Publication number Publication date
DE102006041663A1 (de) 2008-03-27

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