US20090049829A1 - Assembly for Mixing a Medium with the Exhaust Gas Flow of a Motor Vehicle Exhaust System - Google Patents

Assembly for Mixing a Medium with the Exhaust Gas Flow of a Motor Vehicle Exhaust System Download PDF

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Publication number
US20090049829A1
US20090049829A1 US12/295,949 US29594907A US2009049829A1 US 20090049829 A1 US20090049829 A1 US 20090049829A1 US 29594907 A US29594907 A US 29594907A US 2009049829 A1 US2009049829 A1 US 2009049829A1
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US
United States
Prior art keywords
exhaust pipe
connecting member
gas flow
exhaust gas
exhaust
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.)
Abandoned
Application number
US12/295,949
Inventor
Rolf Kaiser
Klaus Rusch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Faurecia Emissions Control Technologies Germany GmbH
Original Assignee
Emcon Technologies Germany Augsburg GmbH
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 Emcon Technologies Germany Augsburg GmbH filed Critical Emcon Technologies Germany Augsburg GmbH
Assigned to EMCON TECHNOLOGIES GERMANY (AUGSBURG) GMBH reassignment EMCON TECHNOLOGIES GERMANY (AUGSBURG) GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAISER, ROLF, RUSCH, KLAUS
Publication of US20090049829A1 publication Critical patent/US20090049829A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • 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
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to an assembly for mixing a medium with the exhaust gas flow of a motor vehicle exhaust system.
  • the invention provides an assembly of the type initially mentioned, which has a first exhaust pipe and a second exhaust pipe.
  • the first exhaust pipe comprises a device for introducing the medium and opens axially into a connecting member that is widened with respect to the first exhaust pipe.
  • the second exhaust pipe opens laterally into the connecting member.
  • the connecting member is configured to impart an angular momentum to the exhaust gas flow.
  • the medium is thus first supplied to the exhaust gas flow in the first exhaust pipe and enters, along with this exhaust gas flow, the connecting member in which a mixing with an exhaust gas flow from the second exhaust pipe is produced.
  • a spin leading to a good swirl, and therefore to a good distribution of the medium is imparted to the entire exhaust gas flow inside the connecting member.
  • the configuration according to the invention is particularly suitable for a two-branch exhaust system, with only a single device for introducing the medium being necessary, but the configuration can be used in any exhaust system where the exhaust gas flow is distributed at least partially to two pipes.
  • the first exhaust pipe extends beyond an opening region of the second exhaust pipe into an interior of the connecting member.
  • the exhaust gas flow from the second exhaust pipe thus first strikes a wall of the first exhaust pipe and is then forced into a rotary movement about an end of the first exhaust pipe.
  • the connecting member has a cone shape with the first exhaust pipe opening into a larger end face of the connecting member. A particularly good swirl of the exhaust gas flow is obtained due to the obliquely tapering lateral walls of the connecting member.
  • the second exhaust pipe opens tangentially into the connecting member.
  • the exhaust gas flow from the second exhaust pipe is therefore forced in a simple way to a helical path along the inner wall of the connecting member.
  • the connecting member may have on an inner side a guiding face for the exhaust gas flow.
  • the device may be arranged downstream of a directing member in the first exhaust pipe.
  • the second exhaust pipe is formed in one piece with the connecting member.
  • the device may be a urea injection device.
  • the device could also be a device for introducing a reducing agent such as fuel for the regeneration of a particulate filter, for example.
  • FIG. 1 shows a longitudinal section through an assembly according to the invention
  • FIG. 2 shows a cross-section through the assembly along the line II-II.
  • FIG. 1 shows an assembly 10 which is arranged in an exhaust system of a motor vehicle (not shown) and has a first exhaust pipe 12 and a second exhaust pipe 14 , with exhaust gas flowing through each exhaust pipe in the direction of the arrows P 1 .
  • the exhaust gases flow from the first and second exhaust pipes 12 , 14 and are merged in a connecting member 16 .
  • the second exhaust pipe 14 opens laterally, in particular tangentially (cf. FIG. 2 ), into the connecting member 16 and is formed in one piece with the connecting member 16 in the example shown.
  • the first exhaust pipe 12 opens axially into the connecting member 16 and has a device 18 for introducing a medium, which in the present case comprises a urea injection device that is arranged downstream of a directing member 20 .
  • the connecting member 16 has the shape of a cone and is widened with respect to the first exhaust pipe 12 which extends beyond the opening region of the second exhaust pipe 14 into the interior of the connecting member 16 .
  • a swirl of the united exhaust gas flow is obtained.
  • This swirl is also referred to as a Vortex and leads to a particularly good mixing with the introduced medium (in the present case dissolved urea).
  • the swirl is indicated by the helically extending arrow P 2 .
  • the connecting member 16 may have on its inner side a guiding face for the exhaust gas flow, which is formed by a guide plate or by plastically deformed wall portions of the connecting member, for example.

Abstract

An assembly for mixing a medium with an exhaust gas flow of a motor vehicle exhaust system has a first exhaust pipe and a second exhaust pipe. The first exhaust pipe comprises a device for introducing the medium and opens axially into a connecting member that is widened with respect to the first exhaust pipe. The second exhaust pipe opens laterally into the connecting member. The connecting member is configured to impart an angular momentum to the exhaust gas flow.

Description

    RELATED APPLICATIONS
  • The application is the U.S. National Phase of PCT/EP2007/003004 filed Apr. 3, 2007, which claimed priority to German Application 10 2006 015 964.0 filed Apr. 5, 2006.
    • BACKGROUND OF THE INVENTION
  • The invention relates to an assembly for mixing a medium with the exhaust gas flow of a motor vehicle exhaust system.
  • In modern exhaust systems, it is sometimes necessary to introduce a medium into the exhaust gas flow to generate specific reactions. For example, it is possible to inject urea in a dissolved form upstream of a selective catalytic reduction (SCR) catalytic converter to provide ammonia as a reducing agent for the nitrogen oxides present in the exhaust gas. It is also possible to supply a reducing agent, such as fuel, upstream of a particulate filter to burn off the particulates retained in the filter in a controlled way. Generally, it has to be taken into consideration that the medium which is to be introduced has to be distributed as homogeneously as possible in the exhaust gas flow to generate a uniform effect.
  • This also particularly applies to two-branch exhaust systems, such as those for a 6 or 8-cylinder engine for example, where only one urea injection device is typically provided for SCR applications in order to reduce costs. The injection device is then usually arranged downstream of a connecting member which merges the exhaust gas flows from the two exhaust pipes. The problem of obtaining an intensive mixing of the exhaust gas with the introduced medium also arises with this configuration.
  • It is therefore the object of the invention to obtain a uniform distribution of an introduced medium in the exhaust gas flow, in particular in the exhaust gas flow of a two-branch exhaust system, with a low effort and a high reliability.
    • SUMMARY OF THE INVENTION
  • The invention provides an assembly of the type initially mentioned, which has a first exhaust pipe and a second exhaust pipe. The first exhaust pipe comprises a device for introducing the medium and opens axially into a connecting member that is widened with respect to the first exhaust pipe. The second exhaust pipe opens laterally into the connecting member. The connecting member is configured to impart an angular momentum to the exhaust gas flow. The medium is thus first supplied to the exhaust gas flow in the first exhaust pipe and enters, along with this exhaust gas flow, the connecting member in which a mixing with an exhaust gas flow from the second exhaust pipe is produced. A spin leading to a good swirl, and therefore to a good distribution of the medium, is imparted to the entire exhaust gas flow inside the connecting member. Furthermore, soiling of pipe walls by the medium, for example by a settling of the medium at the pipe walls, is avoided. The configuration according to the invention is particularly suitable for a two-branch exhaust system, with only a single device for introducing the medium being necessary, but the configuration can be used in any exhaust system where the exhaust gas flow is distributed at least partially to two pipes.
  • The first exhaust pipe extends beyond an opening region of the second exhaust pipe into an interior of the connecting member. The exhaust gas flow from the second exhaust pipe thus first strikes a wall of the first exhaust pipe and is then forced into a rotary movement about an end of the first exhaust pipe.
  • The connecting member has a cone shape with the first exhaust pipe opening into a larger end face of the connecting member. A particularly good swirl of the exhaust gas flow is obtained due to the obliquely tapering lateral walls of the connecting member.
  • Advantageously, the second exhaust pipe opens tangentially into the connecting member. The exhaust gas flow from the second exhaust pipe is therefore forced in a simple way to a helical path along the inner wall of the connecting member.
  • To support the swirl of the exhaust gas flow, the connecting member may have on an inner side a guiding face for the exhaust gas flow.
  • To facilitate the mixing of the introduced medium with the exhaust gas flow in the first exhaust pipe, the device may be arranged downstream of a directing member in the first exhaust pipe.
  • According to a one example embodiment, the second exhaust pipe is formed in one piece with the connecting member.
  • As already mentioned initially, the device may be a urea injection device. However, the device could also be a device for introducing a reducing agent such as fuel for the regeneration of a particulate filter, for example.
  • These and other features of the present invention can be best understood from the following specification and drawings, the following of which is a brief description.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Further features and advantages of the invention will be apparent from the description below of a preferred embodiment with reference to the enclosed drawings.
  • FIG. 1 shows a longitudinal section through an assembly according to the invention; and
  • FIG. 2 shows a cross-section through the assembly along the line II-II.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIG. 1 shows an assembly 10 which is arranged in an exhaust system of a motor vehicle (not shown) and has a first exhaust pipe 12 and a second exhaust pipe 14, with exhaust gas flowing through each exhaust pipe in the direction of the arrows P1. The exhaust gases flow from the first and second exhaust pipes 12, 14 and are merged in a connecting member 16. The second exhaust pipe 14 opens laterally, in particular tangentially (cf. FIG. 2), into the connecting member 16 and is formed in one piece with the connecting member 16 in the example shown.
  • The first exhaust pipe 12 opens axially into the connecting member 16 and has a device 18 for introducing a medium, which in the present case comprises a urea injection device that is arranged downstream of a directing member 20. The connecting member 16 has the shape of a cone and is widened with respect to the first exhaust pipe 12 which extends beyond the opening region of the second exhaust pipe 14 into the interior of the connecting member 16.
  • Due to the tangential introduction of the exhaust gas flow from the second exhaust pipe 14 into the cone-shaped connecting member 16, a swirl of the united exhaust gas flow is obtained. This swirl is also referred to as a Vortex and leads to a particularly good mixing with the introduced medium (in the present case dissolved urea). In the figures, the swirl is indicated by the helically extending arrow P2.
  • Unlike the embodiment illustrated, the connecting member 16 may have on its inner side a guiding face for the exhaust gas flow, which is formed by a guide plate or by plastically deformed wall portions of the connecting member, for example.
  • Although an embodiment of this invention has been disclosed, a worker of ordinary skill in this art would recognize that certain modifications would come within the scope of this invention. For that reason, the following claims should be studied to determine the true scope and content of this invention.

Claims (8)

1. An assembly for mixing a medium with an exhaust gas flow of a motor vehicle exhaust system, comprising:
a first exhaust pipe comprising a device for introducing a medium into an exhaust gas flow, the first exhaust pipe opening axially into a connecting member that is widened with respect to the first exhaust pipe; and
a second exhaust pipe that opens laterally into the connecting member, wherein connecting member is configured to impart an angular momentum to the exhaust gas flow.
2. The assembly according to claim 1, wherein the first exhaust pipe extends beyond an opening region of the second exhaust pipe into an interior of the connecting member.
3. The assembly according to claim 1, wherein the connecting member has a cone shape.
4. The assembly according to claim 1, wherein the second exhaust pipe opens tangentially into the connecting member.
5. The assembly according to claim 1, wherein an inner side of the connecting member has a guiding face for the exhaust gas flow.
6. The assembly according to claim 1, wherein the device is arranged downstream of a directing member in the first exhaust pipe.
7. The assembly according to claim 1, wherein the second exhaust pipe is formed in one piece with the connecting member.
8. The assembly according to claim 1, wherein the device is a urea injection device.
US12/295,949 2006-04-05 2007-04-03 Assembly for Mixing a Medium with the Exhaust Gas Flow of a Motor Vehicle Exhaust System Abandoned US20090049829A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006015964.0 2006-04-05
DE102006015964A DE102006015964A1 (en) 2006-04-05 2006-04-05 Assembly for mixing a medium with the exhaust gas flow of a motor vehicle exhaust system
PCT/EP2007/003004 WO2007115748A1 (en) 2006-04-05 2007-04-03 Assembly for mixing a medium with the exhaust-gas flow of a motor-vehicle exhaust-gas system

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US20090049829A1 true US20090049829A1 (en) 2009-02-26

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DE (1) DE102006015964A1 (en)
WO (1) WO2007115748A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013540230A (en) * 2010-10-06 2013-10-31 スカニア シーブイ アクチボラグ（パブル） Equipment for introducing liquid medium into combustion exhaust gas from combustion engines
JP5977375B2 (en) * 2013-01-25 2016-08-24 フタバ産業株式会社 Exhaust gas purification device
US20200164738A1 (en) * 2017-08-18 2020-05-28 Carrier Corporation Common exhaust passage for transport refrigeration unit and vehicle
US11828214B2 (en) 2020-05-08 2023-11-28 Cummins Emission Solutions Inc. Configurable aftertreatment systems including a housing

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006045435B4 (en) 2006-09-26 2008-06-05 Faurecia Abgastechnik Gmbh Exhaust system for diesel vehicles with an SCR catalytic converter
DE202008001547U1 (en) 2007-07-24 2008-04-10 Emcon Technologies Germany (Augsburg) Gmbh Assembly for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine
US8745978B2 (en) 2008-09-19 2014-06-10 Renault Trucks Mixing device in an exhaust gas pipe
EP2180156A1 (en) * 2008-10-24 2010-04-28 Magneti Marelli Powertrain S.p.A. Injection system for injecting a reducing substance into an exhaust system of an internal combustion engine
US9726064B2 (en) 2015-04-30 2017-08-08 Faurecia Emissions Control Technologies, Usa, Llc Mixer for use in a vehicle exhaust system
US10933387B2 (en) 2016-10-21 2021-03-02 Faurecia Emissions Control Technologies, Usa, Llc Reducing agent mixer

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US3577728A (en) * 1969-03-19 1971-05-04 Joe W Von Brimer Exhaust gas processing system
US3756027A (en) * 1970-08-17 1973-09-04 Toyota Motor Co Ltd Exhaust emission control device for internal combustion engines
US3947545A (en) * 1973-06-20 1976-03-30 Toyota Jidosha Kogyo Kabushiki Kaisha Purification of exhaust gas
US3957446A (en) * 1972-04-14 1976-05-18 Texaco Inc. Swirl reactor for exhaust gases
US4036014A (en) * 1973-05-30 1977-07-19 Nissan Motor Co., Ltd. Method of reducing emission of pollutants from multi-cylinder engine
US20020187093A1 (en) * 1995-06-28 2002-12-12 Siemens Aktiengesellschaft Process for the catalytic cleaning of the exhaust gas from a combustion plant
US20050013756A1 (en) * 2003-05-28 2005-01-20 Kiyoshi Amou Engine exhaust gas treatment system and exhaust gas treatment process
US20050172615A1 (en) * 2000-10-04 2005-08-11 Bernd Mahr Device for producing a reducing agent/exhaust gas mixture and exhaust gas purification system
US6969492B1 (en) * 1999-05-19 2005-11-29 Daimlerchrysler Ag Exhaust-gas cleaning system with nitrogen oxide reduction and with the addition of reducing agent
US20070068150A1 (en) * 2005-09-27 2007-03-29 Manfred Mueller Mixing element for an exhaust gas system
US20080047260A1 (en) * 2006-08-23 2008-02-28 Kapsos David W Exhaust aftertreatment system with spiral mixer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1760682A (en) * 1925-04-22 1930-05-27 Boysen Friedrich August Collecting conduit for the exhaust pipes or internal-combustion engines
US3577728A (en) * 1969-03-19 1971-05-04 Joe W Von Brimer Exhaust gas processing system
US3756027A (en) * 1970-08-17 1973-09-04 Toyota Motor Co Ltd Exhaust emission control device for internal combustion engines
US3957446A (en) * 1972-04-14 1976-05-18 Texaco Inc. Swirl reactor for exhaust gases
US4036014A (en) * 1973-05-30 1977-07-19 Nissan Motor Co., Ltd. Method of reducing emission of pollutants from multi-cylinder engine
US3947545A (en) * 1973-06-20 1976-03-30 Toyota Jidosha Kogyo Kabushiki Kaisha Purification of exhaust gas
US20020187093A1 (en) * 1995-06-28 2002-12-12 Siemens Aktiengesellschaft Process for the catalytic cleaning of the exhaust gas from a combustion plant
US6969492B1 (en) * 1999-05-19 2005-11-29 Daimlerchrysler Ag Exhaust-gas cleaning system with nitrogen oxide reduction and with the addition of reducing agent
US20050172615A1 (en) * 2000-10-04 2005-08-11 Bernd Mahr Device for producing a reducing agent/exhaust gas mixture and exhaust gas purification system
US20050013756A1 (en) * 2003-05-28 2005-01-20 Kiyoshi Amou Engine exhaust gas treatment system and exhaust gas treatment process
US20070068150A1 (en) * 2005-09-27 2007-03-29 Manfred Mueller Mixing element for an exhaust gas system
US20080047260A1 (en) * 2006-08-23 2008-02-28 Kapsos David W Exhaust aftertreatment system with spiral mixer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013540230A (en) * 2010-10-06 2013-10-31 スカニア シーブイ アクチボラグ（パブル） Equipment for introducing liquid medium into combustion exhaust gas from combustion engines
JP5977375B2 (en) * 2013-01-25 2016-08-24 フタバ産業株式会社 Exhaust gas purification device
JPWO2014115461A1 (en) * 2013-01-25 2017-01-26 フタバ産業株式会社 Exhaust gas purification device
US20200164738A1 (en) * 2017-08-18 2020-05-28 Carrier Corporation Common exhaust passage for transport refrigeration unit and vehicle
US11571964B2 (en) * 2017-08-18 2023-02-07 Carrier Corporation Common exhaust passage for transport refrigeration unit and vehicle
US11828214B2 (en) 2020-05-08 2023-11-28 Cummins Emission Solutions Inc. Configurable aftertreatment systems including a housing

Also Published As

Publication number Publication date
DE102006015964A1 (en) 2007-10-18
WO2007115748A1 (en) 2007-10-18

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Owner name: EMCON TECHNOLOGIES GERMANY (AUGSBURG) GMBH, GERMAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAISER, ROLF;RUSCH, KLAUS;REEL/FRAME:021628/0962

Effective date: 20081002

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION