DE10239417A1 - Automotive exhaust pipe cylindrical sheet insert has die-cut curved canes that form gas and fuel-mixing twister vanes - Google Patents
Automotive exhaust pipe cylindrical sheet insert has die-cut curved canes that form gas and fuel-mixing twister vanes Download PDFInfo
- Publication number
- DE10239417A1 DE10239417A1 DE10239417A DE10239417A DE10239417A1 DE 10239417 A1 DE10239417 A1 DE 10239417A1 DE 10239417 A DE10239417 A DE 10239417A DE 10239417 A DE10239417 A DE 10239417A DE 10239417 A1 DE10239417 A1 DE 10239417A1
- Authority
- DE
- Germany
- Prior art keywords
- flow
- hot gas
- gas flow
- baffles
- sheet metal
- 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.)
- Granted
Links
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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
-
- 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
- B01F25/4315—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material
- B01F25/43151—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material composed of consecutive sections of deformed flat pieces of material
-
- 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
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
-
- 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
- F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
- F01N2610/102—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance after addition to exhaust gases, e.g. by a passively or actively heated surface in the exhaust conduit
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Ein Heißgas-Strömungskanal (1) mit einem Strömungsbereich, insbesondere innerhalb einer Abgasanlage eines Verbrennungsmotors stromauf eines Katalysators, zur Vermischung und/oder Verdampfung gas- und/oder flüssigförmiger, in den Heißgasstrom eingebrachter Additive, soll bei einer guten Wirkung auf die angestrebte Vermischung und/oder Verdampfung des eingebrachten Additivs klein bauend und mit möglichst geringem Gewicht ausgebildet sein. DOLLAR A Zu diesem Zweck sind in dem Strömungsbereich blattförmige Strömungsschikanen (3) vorgesehen, die insbesondere aus gut wärmeleitfähigem Material bestehen. Durch eine in Umfangsrichtung des Strömungskanals (1) gegenüber diesem gekrümmte und mit Bezug auf die Strömungskanallängsachse verdrehte Formgebung der blattförmigen Strömungsschikanen (3) wird eine zur Vermischung und/oder Verdampfung günstige Strömungsverwirbelung erzielt.A hot gas flow channel (1) with a flow area, in particular within an exhaust system of an internal combustion engine upstream of a catalyst, for mixing and / or evaporation of gaseous and / or liquid additives introduced into the hot gas flow, is said to have a good effect on the desired mixing and / or evaporation of the introduced additive to be of a small size and as light as possible. DOLLAR A For this purpose, sheet-shaped flow baffles (3) are provided in the flow area, which consist in particular of a highly heat-conductive material. A flow vortex which is favorable for mixing and / or evaporation is achieved by shaping the sheet-shaped flow baffles (3) in the circumferential direction of the flow duct (1) with respect to the latter and twisted with respect to the longitudinal axis of the flow duct.
Description
Die Erfindung betrifft einen Heißgas-Strömungskanal, insbesondere innerhalb einer Abgasanlage eines Verbrennungsmotors stromauf eines Katalysators nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a hot gas flow channel, especially within an exhaust system of an internal combustion engine upstream of a catalyst according to the preamble of the claim 1.
Bei Verbrennungsmotoren können NOx-Emissionen mit Hilfe eines sogenannten SCR-Katalysators (Katalysator mit selektiver katalytischer Reduktion) reduziert werden. Dabei werden in einem derartigen SCR-Katalysator im mageren Abgas Stickoxide mit Ammoniak zu Stickstoff und Wasser bzw. Wasserdampf umgesetzt. Da Ammoniak in Verbrennungsabgasen eines Verbrennungsmotors üblicherweise nicht vorhanden ist, erfolgt stromauf des SCR-Karalysators eine künstliche Anreicherung der Abgase mit Ammoniak. Zweckmäßig erfolgt dies mit Hilfe eines dem SCR-Katalysator vorgeschalteten Hydrolysekatalysators, der Harnstoff in Ammoniak umsetzt. Da die Verbrennungsabgase üblicherweise auch keinen Harnstoff enthalten, muss auch dieser stromauf des Hydrolysekatalysators künstlich in die Abgase eingebracht werden. Dies kann beispiels weise mit Hilfe einer Harnstoffzuführungseinrichtung erfolgen, die stromauf des Hydrolysekatalysators den Harnstoff in Form einer wässrigen Lösung in das Abgas einbringt, insbesondere eindüst. Der Bereich, in dem dieses Einbringen erfolgt, ist bei dem gattungsgemäßen Heißgas-Strömungskanal derjenige Bereich, in dem eine Vermischung und/oder Flüssigkeitsverdampfung erfolgen soll.In internal combustion engines, NO x emissions can be reduced with the help of a so-called SCR catalytic converter (catalytic converter with selective catalytic reduction). In such an SCR catalytic converter, nitrogen oxides are converted with ammonia to nitrogen and water or water vapor in the lean exhaust gas. Since ammonia is usually not present in the combustion exhaust gases of an internal combustion engine, the exhaust gases are artificially enriched with ammonia upstream of the SCR analyzer. This is expediently carried out with the aid of a hydrolysis catalytic converter connected upstream of the SCR catalytic converter, which converts urea into ammonia. Since the combustion exhaust gases usually also contain no urea, this must also be artificially introduced into the exhaust gases upstream of the hydrolysis catalytic converter. This can be done, for example, with the aid of a urea feed device which, upstream of the hydrolysis catalytic converter, introduces the urea into the exhaust gas in the form of an aqueous solution, in particular by injecting it. The area in which this introduction takes place in the generic hot gas flow channel is the area in which mixing and / or liquid evaporation is to take place.
Damit sich in dem SCR-Katalysator eine relativ hohe Umsatzrate für die Stickoxide erzielen lässt, ist bereits stromauf des Hydrolysekatalysators eine gute Durchmischung und Verdampfung des Harnstoffs im Abgas erforderlich. Eine derart gute Durchmischung und Verdampfung kann beispielsweise durch eine relativ lange Mischstrecke erzielt werden. In der Praxis besteht allerdings für eine derart lange Mischstrecke in der Regel kein entsprechender Bauraum zur Verfügung. Auch wenn dies der Fall wäre, sind entsprechend lange Strömungskanäle wegen des damit verbundenen Materialverbrauchs und dadurch bedingter Gewichtserhöhung unerwünscht.So that in the SCR catalyst a relatively high sales rate for that can achieve nitrogen oxides, there is already thorough mixing upstream of the hydrolysis catalytic converter and evaporation of the urea in the exhaust gas is required. Such a good mixing and evaporation can be achieved, for example, by a relatively long mixing distance can be achieved. In practice there is however for such a long mixing section is usually not a corresponding one Space available. Even if that were the case are due to long flow channels the associated material consumption and the resulting weight increase undesirable.
Die Erfindung beschäftigt sich mit dem Problem, eine günstigere Lösung zu schaffen, bei der eine ausreichend gute Durchmischung und/oder Verdampfung mit einem klein bauenden und möglichst auch gewichtsgeringen Heißgas-Strömungskanal in sicherer und befriedigender Weise erzielt werden kann. Das erfindungsgemäß zu behandelnde Additiv ist nicht auf flüssigen Harnstoff beschränkt, sondern kann beispielsweise insbesondere auch Kraftstoff sein.The invention is concerned with the problem of a cheaper one solution to create, with a sufficiently good mixing and / or Evaporation with a small-sized and, if possible, light weight Hot gas flow channel can be achieved in a safe and satisfactory manner. The one to be treated according to the invention Additive is not on liquid Limited urea, but can also be fuel, for example.
Gelöst wird dieses Problem bei einem gattungsgemäßen Heißgas-Strömungskanal durch eine Ausführung nach dem kennzeichnenden Merkmal des Anspruchs 1.This problem is solved with a generic hot gas flow channel through an execution according to the characterizing feature of claim 1.
Die Erfindung beruht auf dem allgemeinen Gedanken, das zugegebene Additiv, das inbesondere eine zu verdampfende Flüssigkeit ist, durch Aufprall an den blattförmigen Strömungskanälen bei der Umsetzung in den Aggregatzustand des Heißgases zu unterstützen. Insbesondere bei einer Umsetzung in den Heißgasaggregatzustand durch Verdampfen sollten die blattförmigen Strömungsschikanen eine gute Wärmeleitfähigkeit besitzen, um Verdampfungswärme abgeben zu können.The invention is based on the general idea the additive added, in particular a liquid to be evaporated is, by impact on the leaf-shaped flow channels in the implementation in the Physical state of the hot gas too support. In particular, when converting to the hot gas unit state by evaporation the leaf-shaped flow baffles good thermal conductivity own to heat of vaporization to be able to deliver.
Eine große Oberfläche der blattförmigen Strömungsschikane kann vorteilhafterweise dadurch erreicht werden, dass aus einem in dem Strömungskanal eingebrachten Blech eine Vielzahl an Strömungsschikanen in der Form von Blechlaschen ausgestanzt und aus der Blechebene heraus gebogen sind.A large surface of the leaf-shaped flow chicane can advantageously be achieved in that from a in the flow channel introduced sheet a variety of flow baffles in the form are punched out of sheet metal tabs and bent out of the sheet metal plane.
Zur Erzielung einer Verwirbelung der Strömung durch die blattförmigen Strömungsschikanen ist es vorteilhaft, diese mit Bezug auf die Strömungskanallängsrichtung zu verdrehen. Werden mit Bezug auf eine Stelle in Längsrichtung der Strömungskanalachse sämtliche auf dem dieser Stelle zugeordneten Strömungsumfang liegenden Strömungsschikanen gleichsinnig verdreht, so erhält die Strömung hierdurch einen entsprechenden Drall. Durch stromab liegende Blechlaschen als Strömungsschikanen mit einer vorgenannten Verdrehung mit umge kehrtem Drehsinn entsteht ein gegensinniger Drall, der den stromauf zuvor erzielten Drall praktisch aufhebt.To create a swirl the current through the leaf-shaped Is flow baffles it is advantageous to twist it with respect to the longitudinal direction of the flow channel. Become with respect to a position in the longitudinal direction the flow channel axis all flow chicanes lying on the flow range assigned to this point twisted in the same direction, so get the flow through it a corresponding twist. Through downstream metal straps as flow baffles with a aforementioned rotation with the opposite direction of rotation arises an opposite swirl, the swirl previously achieved upstream practically cancels.
Es ist möglich, in Strömungsrichtung des Kanales eine Mehrzahl nebeneinander liegender blattförmiger Strömungsschikanen vorzusehen, die umfangsmäßig dabei noch gegeneinander versetzt sein können, wobei von einer Strömungsschikanenreihe zu einer nachfolgender Reihe gleichsinnige oder entgegengerichtete Drallströmungen erzielt werden können. Möglich ist es im Rahmen der Erfindung auch, an einer Stelle längs des Strömungskanales umfangsmäßig blattförmige Strömungsschikanen vorzusehen, die unterschiedliche Verdrehungen gegenüber der Längsrichtung aufweisen.It is possible in the direction of flow of the channel a plurality of leaf-shaped flow baffles lying side by side to provide the circumferential can still be offset from each other, whereby from a flow baffle row to a subsequent row in the same or opposite direction swirl flows can be achieved. Possible it is also within the scope of the invention at a point along the flow channel circumferentially leaf-shaped flow baffles to provide the different twists compared to the longitudinal direction exhibit.
Bei beispielsweise einem rohrförmigen Abgaskanal können die blattförmigen Strömungsschikanen aus einem Blechstreifen herausgestanzt sein, der am Innenumfang des Abgasrohres anliegend angeordnet wird. Besitzt das gebogene Blech eine nach radial außen gerichtete Spannung, so kann eine Fixierung allein durch diese Blechspannung ausreichen. Zweckmäßig wird es allerdings sein, das Blech durch beispielsweise ein Punktschweißen an dem Abgasrohr zu fixieren.For example, a tubular exhaust duct can the leaf-shaped flow baffles be punched out of a metal strip, the inside circumference the exhaust pipe is arranged adjacent. Has the curved Sheet one radially outward directional tension, fixation can only be achieved by this sheet tension suffice. Will be expedient However, it can be, for example, spot welding on the exhaust pipe to fix.
In einem Abgasrohr können in Strömungslängsrichtung mehrere Blechstreifen mit jeweils aus diesen ausgestanzten Blechlaschen als Strömungsschikanen angeordnet sein oder es ist auch möglich, ein längeres Blech mit mehreren in Strömungskanalrichtung nebeneinander liegenden ausgestanzten Blechlaschen einzusetzen.In an exhaust pipe, several sheet metal strips can each be made in the longitudinal direction of the flow These punched sheet metal tabs can be arranged as flow baffles, or it is also possible to use a longer sheet with a plurality of punched sheet metal tabs lying next to one another in the flow channel direction.
Wichtig für eine gute Durchmischung bzw. Verdampfung eines insbesondere flüssig eingebrachten Additivs wie insbesondere einer Harnstoffflüssigkeit ist, dass durch die Form und Ausrichtung der einzelnen blattfömigen Schikanen eine gute Strömungsdurchwirbelung erzielt wird.Important for thorough mixing or evaporation one in particular liquid introduced additives such as in particular a urea liquid is that due to the shape and orientation of the individual leaf-shaped chicanes a good flow swirl is achieved.
Weitere wichtige Merkmale und Vorteile ergeben sich aus den einzelnen Unteransprüchen, aus den Zeichnungen sowie der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages result from the individual subclaims, from the drawings and the associated Description of the figures using the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder alleinstehend verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the above not only mentioned and the features to be explained below in the specified combination, but also in others Combinations or stand alone can be used without the frame to leave the present invention.
Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird in der nachfolgenden Beschreibung näher erläutert.A preferred embodiment the invention is illustrated in the drawings and is in the following description in more detail explained.
Es zeigenShow it
In
Die Laschen
Wie die Ausstanzungen der Laschen
Als Material für einen Blecheinsatz
Mit Bezug auf eine Abgasanlage für einen Verbrennungsmotor
befindet sich der in der Zeichnung dargestellte Blecheinsatz
Wie bereits in der allgemeinen Beschreibung erwähnt, kann die erfindungsgemäße Einrichtung für jede Art in einen Heißgasstrom eingebrachter Additive zur Umwandlung in den Aggregatzustand des Heißgases oder einer Vermischung in diesem äußerst vorteilhaft eingesetzt werden.As already mentioned in the general description, the device according to the invention for every Kind in a hot gas stream introduced additives for conversion into the physical state of the hot gas or mixing in this extremely advantageous be used.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10239417A DE10239417B4 (en) | 2002-08-28 | 2002-08-28 | Hot gas flow channel, in particular within an exhaust system of an internal combustion engine upstream of a catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10239417A DE10239417B4 (en) | 2002-08-28 | 2002-08-28 | Hot gas flow channel, in particular within an exhaust system of an internal combustion engine upstream of a catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE10239417A1 true DE10239417A1 (en) | 2004-03-18 |
| DE10239417B4 DE10239417B4 (en) | 2009-09-24 |
Family
ID=31724126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10239417A Expired - Fee Related DE10239417B4 (en) | 2002-08-28 | 2002-08-28 | Hot gas flow channel, in particular within an exhaust system of an internal combustion engine upstream of a catalyst |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10239417B4 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2906838A1 (en) * | 2006-10-09 | 2008-04-11 | Renault Sas | EXHAUST LINE HAVING A FUEL INJECTOR AND MEANS FOR HOMOGENIZING BURNED GASES. |
| EP2006017A2 (en) | 2007-06-18 | 2008-12-24 | J. Eberspächer GmbH Co. KG | Mixing and/or vaporisation device and corresponding method of manufacture |
| EP1985356A3 (en) * | 2007-04-25 | 2009-03-18 | J. Eberspächer GmbH & Co. KG | Mixing and/or vaporisation device and corresponding method of manufacture |
| DE102008049686A1 (en) | 2008-09-30 | 2009-06-10 | Daimler Ag | Exhaust gas i.e. diesel exhaust gas, system for motor vehicle, has exhaust gas treatment device arranged in exhaust pipe, and driving turbulence element arranged in exhaust pipe in close-up-range of injection device |
| EP2111916A1 (en) | 2008-04-21 | 2009-10-28 | Swenox AB | Mixing device for mixing a gas with an additive fluid |
| DE102008054268A1 (en) * | 2008-10-31 | 2010-05-12 | J. Eberspächer GmbH & Co. KG | Mixing- and vaporizing equipment for use with device for appliance for introducing fluid in gas flow, particularly in exhaust system of internal combustion engine, has sheet body, which has multiple guide blades |
| CN101968003A (en) * | 2009-07-25 | 2011-02-09 | J·埃贝斯佩歇合资公司 | Mixing and/or vaporisation device |
| CN102027216A (en) * | 2008-04-25 | 2011-04-20 | 坦尼科汽车营业公司 | Exhaust gas additive/treatment system and mixer for use therein |
| US8615984B2 (en) | 2007-05-08 | 2013-12-31 | Friedrich Boysen Gmbh & Co. Kg | Device for the distribution of flowable additives in exhaust gas systems |
| US20140345257A1 (en) * | 2012-03-14 | 2014-11-27 | Ford Global Technologies, Llc | Mixing system |
| CN107829805A (en) * | 2016-09-16 | 2018-03-23 | 通用汽车环球科技运作有限责任公司 | Low pressure drop cyclone mixer |
| DE102008018461C5 (en) * | 2007-04-16 | 2019-05-09 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Mixing device for an exhaust aftertreatment system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB219329A (en) * | 1923-07-18 | 1925-10-19 | Adolf Pfoser | Improvements in or relating to tubular heat-exchange apparatus |
| DE2343352A1 (en) * | 1973-08-28 | 1975-03-13 | Worcester Valve Co Ltd | Fluid mixer with helical guide vanes in a pipeline - to subdivide each upstream channel into downstream channels |
| DE2459355C2 (en) * | 1973-12-27 | 1985-01-24 | Komax Systems Inc., Long Beach, Calif. | Stationary mixing device |
| DE19539923C1 (en) * | 1995-10-26 | 1997-06-26 | Esg Gmbh | Static mixer for e.g. fuel and ammonia-air mixt. |
| DE10060808A1 (en) * | 2000-12-07 | 2002-07-04 | Bosch Gmbh Robert | Exhaust gas purification device used for post-treating IC engine exhaust gases comprises post-treatment unit, unit for introducing auxiliary agent into post-treatment unit, and unit for mixing exhaust gas with agent |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE288909C (en) * | ||||
| AU2339497A (en) * | 1996-03-18 | 1997-10-10 | Theodore Yi-Tze Cheng | Gas swirling device for internal combustion engine |
| DE19934413A1 (en) * | 1999-07-22 | 2001-01-25 | Siemens Ag | Apparatus for introducing an additive into an exhaust gas in the exhaust gas line of a diesel engine comprises a nozzle and mixers which are combined to form a constructive and functional component |
-
2002
- 2002-08-28 DE DE10239417A patent/DE10239417B4/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB219329A (en) * | 1923-07-18 | 1925-10-19 | Adolf Pfoser | Improvements in or relating to tubular heat-exchange apparatus |
| DE2343352A1 (en) * | 1973-08-28 | 1975-03-13 | Worcester Valve Co Ltd | Fluid mixer with helical guide vanes in a pipeline - to subdivide each upstream channel into downstream channels |
| DE2459355C2 (en) * | 1973-12-27 | 1985-01-24 | Komax Systems Inc., Long Beach, Calif. | Stationary mixing device |
| DE19539923C1 (en) * | 1995-10-26 | 1997-06-26 | Esg Gmbh | Static mixer for e.g. fuel and ammonia-air mixt. |
| DE10060808A1 (en) * | 2000-12-07 | 2002-07-04 | Bosch Gmbh Robert | Exhaust gas purification device used for post-treating IC engine exhaust gases comprises post-treatment unit, unit for introducing auxiliary agent into post-treatment unit, and unit for mixing exhaust gas with agent |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008043932A1 (en) * | 2006-10-09 | 2008-04-17 | Renault S.A.S. | Exhaust line fitted with a fuel injector and means for homogenizing burnt gases |
| FR2906838A1 (en) * | 2006-10-09 | 2008-04-11 | Renault Sas | EXHAUST LINE HAVING A FUEL INJECTOR AND MEANS FOR HOMOGENIZING BURNED GASES. |
| DE102008018461C5 (en) * | 2007-04-16 | 2019-05-09 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Mixing device for an exhaust aftertreatment system |
| US8495866B2 (en) | 2007-04-25 | 2013-07-30 | J. Eberspaecher Gmbh & Co., Kg | Mixing and/or evaporation device and respective manufacturing method |
| EP1985356A3 (en) * | 2007-04-25 | 2009-03-18 | J. Eberspächer GmbH & Co. KG | Mixing and/or vaporisation device and corresponding method of manufacture |
| US8615984B2 (en) | 2007-05-08 | 2013-12-31 | Friedrich Boysen Gmbh & Co. Kg | Device for the distribution of flowable additives in exhaust gas systems |
| EP2006017A3 (en) * | 2007-06-18 | 2009-03-25 | J. Eberspächer GmbH Co. KG | Mixing and/or vaporisation device and corresponding method of manufacture |
| US8302391B2 (en) | 2007-06-18 | 2012-11-06 | J. Eberspächer GmbH & Co. KG | Mixing and/or evaporating device and process for manufacturing same |
| EP2006017A2 (en) | 2007-06-18 | 2008-12-24 | J. Eberspächer GmbH Co. KG | Mixing and/or vaporisation device and corresponding method of manufacture |
| EP2111916A1 (en) | 2008-04-21 | 2009-10-28 | Swenox AB | Mixing device for mixing a gas with an additive fluid |
| CN102027216A (en) * | 2008-04-25 | 2011-04-20 | 坦尼科汽车营业公司 | Exhaust gas additive/treatment system and mixer for use therein |
| DE102008049686A1 (en) | 2008-09-30 | 2009-06-10 | Daimler Ag | Exhaust gas i.e. diesel exhaust gas, system for motor vehicle, has exhaust gas treatment device arranged in exhaust pipe, and driving turbulence element arranged in exhaust pipe in close-up-range of injection device |
| DE102008054268A1 (en) * | 2008-10-31 | 2010-05-12 | J. Eberspächer GmbH & Co. KG | Mixing- and vaporizing equipment for use with device for appliance for introducing fluid in gas flow, particularly in exhaust system of internal combustion engine, has sheet body, which has multiple guide blades |
| CN101968003A (en) * | 2009-07-25 | 2011-02-09 | J·埃贝斯佩歇合资公司 | Mixing and/or vaporisation device |
| US20140345257A1 (en) * | 2012-03-14 | 2014-11-27 | Ford Global Technologies, Llc | Mixing system |
| US9453448B2 (en) * | 2012-03-14 | 2016-09-27 | Ford Global Technologies, Llc | Mixing system |
| CN107829805A (en) * | 2016-09-16 | 2018-03-23 | 通用汽车环球科技运作有限责任公司 | Low pressure drop cyclone mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10239417B4 (en) | 2009-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102006055036B4 (en) | Mixing element and exhaust system for an internal combustion engine | |
| EP2775114B1 (en) | Inflow chamber for a catalytic converter of an emission control system | |
| EP3071807B1 (en) | Exhaust gas treatment device | |
| DE112009001055T5 (en) | Exhaust element comprising a static means for admixing an additive to exhaust gases | |
| EP2921220B1 (en) | Mixer for an exhaust system | |
| DE102007019878A1 (en) | Mixing and / or evaporating device and associated production method | |
| DE112010002589T5 (en) | Exhaust system with injection system | |
| DE10239417A1 (en) | Automotive exhaust pipe cylindrical sheet insert has die-cut curved canes that form gas and fuel-mixing twister vanes | |
| DE202015102092U1 (en) | emission control assembly | |
| EP3196434B1 (en) | Scr waste gas treatment assembly | |
| DE102008017395A1 (en) | Mixture or evaporation device for exhaust system of internal-combustion engine, particularly in motor vehicle, has tubing body, where radially inward projecting blades are engaged in axial direction | |
| DE2238257C3 (en) | Exhaust collector for an internal combustion engine | |
| EP4123134B1 (en) | Exhaust gas system | |
| EP1514591A1 (en) | Hot gas flow channel, especially within an exhaust system of an internal combustion engine upstream of a catalyst | |
| DE102011120221B4 (en) | Mixer for an exhaust system and exhaust system | |
| DE112017002859T5 (en) | Double mixer for exhaust aftertreatment systems | |
| DE102020101226A1 (en) | Device for introducing and distributing a liquid into a gas flow | |
| DE102016108113B4 (en) | Device for introducing and distributing a liquid into a gas stream | |
| EP3696383B1 (en) | Mixer | |
| EP0137119A2 (en) | Steam generator | |
| EP3611354B1 (en) | Mixer | |
| DE69922779T2 (en) | Exhaust manifold for spark-ignited internal combustion engine | |
| DE19539923C1 (en) | Static mixer for e.g. fuel and ammonia-air mixt. | |
| DE102019208824A1 (en) | Exhaust tract for exhaust aftertreatment | |
| DE202022103093U1 (en) | Mixer arrangement for an exhaust system, exhaust system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8364 | No opposition during term of opposition | ||
| R082 | Change of representative |
Representative=s name: BRP RENAUD & PARTNER, DE |
|
| R081 | Change of applicant/patentee |
Owner name: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG, DE Free format text: FORMER OWNER: J. EBERSPAECHER GMBH & CO. KG, 73730 ESSLINGEN, DE Effective date: 20131022 |
|
| R082 | Change of representative |
Representative=s name: BRP RENAUD & PARTNER, DE Effective date: 20131022 Representative=s name: BRP RENAUD UND PARTNER MBB, DE Effective date: 20131022 Representative=s name: BRP RENAUD UND PARTNER MBB RECHTSANWAELTE PATE, DE Effective date: 20131022 |
|
| R081 | Change of applicant/patentee |
Owner name: PUREM GMBH, DE Free format text: FORMER OWNER: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG, 66539 NEUNKIRCHEN, DE |
|
| R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: B01F0003020000 Ipc: B01F0023100000 |
|
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |