DE102007022783A1 - Venting of a built-in pollutant treatment system of a vehicle - Google Patents
Venting of a built-in pollutant treatment system of a vehicle Download PDFInfo
- Publication number
- DE102007022783A1 DE102007022783A1 DE102007022783A DE102007022783A DE102007022783A1 DE 102007022783 A1 DE102007022783 A1 DE 102007022783A1 DE 102007022783 A DE102007022783 A DE 102007022783A DE 102007022783 A DE102007022783 A DE 102007022783A DE 102007022783 A1 DE102007022783 A1 DE 102007022783A1
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- Prior art keywords
- storage tank
- exhaust system
- valve
- pressure
- pollutant treatment
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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
- F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/029—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 using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
-
- 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
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2033—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using a fuel burner or introducing fuel into exhaust duct
-
- 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
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
-
- 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
- F01N3/36—Arrangements for supply of additional fuel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—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
- F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous form
-
- 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
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1466—Means for venting air out of conduits or tanks
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Eine Anlage und ein Verfahren zum Steuern des Entlüftens einer in einem Fahrzeug eingebauten Speicher- und Verteilungsanlage für eine Schadstoffbehandlungssubstanz, die gezielt eine Schadstoffbehandlungssubstanz aus einem Speichertank an dem Fahrzeug zu einer Abgasanlage des Fahrzeugs abgibt, umfassen das gezielte Verbinden des Speichertanks mit der Abgasanlage, wenn der Druck in dem Speichertank einen der Abgasanlage zugeordneten vorbestimmten Druck übersteigt. Die Erfindung kann auch das gezielte Verbinden des Speichertanks mit der Atmosphäre umfassen, wenn ein Druckdifferential zwischen dem Speichertank und der Atmosphäre ein vorbestimmtes Druckdifferential übersteigt.A system and method for controlling the venting of a vehicle-mounted pollutant treatment substance storage and distribution system that selectively emits a pollutant treatment substance from a storage tank on the vehicle to an exhaust system of the vehicle includes selectively connecting the storage tank to the exhaust system when the pressure in the storage tank exceeds a predetermined pressure associated with the exhaust system. The invention may also include selectively connecting the storage tank to the atmosphere when a pressure differential between the storage tank and the atmosphere exceeds a predetermined pressure differential.
Description
Hintergrund der ErfindungBackground of the invention
1. Gebiet der Erfindung1. Field of the invention
Die vorliegende Erfindung betrifft Anlagen und Verfahren zum Steuern der Entlüftung einer eingebauten Schadstoffbehandlungsanlage eines Fahrzeugs.The The present invention relates to plants and methods for controlling the vent a built-in pollutant treatment system of a vehicle.
2. Stand der Technik2. State of the art
Verschiedene Arten von Schadstoffbehandlungsanlagen von Fahrzeugen leiten ein oder mehrere Substanzen direkt oder indirekt mittels der Kraftstoffzufuhr, des Luft-/Kraftstoffeinlasses, des Auslasses zum Motor oder direkt zu einem Motorzylinder oder einer Schadstoffbegrenzungsvorrichtung wie einem Katalysator ein. Substanzen, die als reduzierende Mittel oder Reduktionsmittel dienen, beispielsweise wässriger Harnstoff oder Kohlenwasserstoffe (außer Kraftstoff), können in Motoranwendungen mit magerem Kraftstoff-/Luftverhältnis, einschließlich Dieselmotoren, in Kombination mit Mager-NOx-Katalysatoren (oder selektiver katalytischer Reduktion (SCR, vom engl. selectice catalytic reaction)) verwendet werden, um Distickstoffoxid-Abgasemissionen zu behandeln. Diese Substanzen erfordern im Allgemeinen eine Speicher- und Verteilungsanlage, die von der primären Kraftstoffspeicher- und -verteilungsanlage getrennt ist.Various Types of pollutant treatment systems of vehicles initiate or several substances directly or indirectly by means of the fuel supply, the air / fuel inlet, the outlet to the engine or directly to an engine cylinder or an emission control device such as a catalyst. Substances that serve as reducing agents or reducing agents, for example, aqueous Urea or hydrocarbons (except fuel) can be used in Lean-burn engine applications, including diesel engines, in combination with lean NOx catalysts (or selective catalytic Reduction (SCR, from the English selectice catalytic reaction)) used be used to treat nitrous oxide exhaust emissions. These Substances generally require a storage and distribution facility that from the primary Fuel storage and distribution system is separated.
Selektive katalytische Reaktion (SCR) von flüssigem Harnstoff ist ein Verfahren der mobilen Abgasnachbehandlung, das besonders bei Dieselmotoren zum Behandeln von Stickstoffoxid-Emissionen (NOx) geeignet ist. Bei einer charakteristischen SCR-Anwendung bei flüssigem Harnstoff wird eine Harnstofflösung, typischerweise 33% Harnstoff in Wasser, an Bord des Fahrzeugs gespeichert und von einer Pumpe abgemessen oder dosiert und in das Abgas eingespritzt, wo sie sich durch thermische Hydrolyse zu Ammoniak und Kohlendioxid zersetzt. Ammoniak reagiert dann über dem SCR-Katalysator, um NOx-Verbindungen vor dem Freisetzen an die Atmosphäre zu Stickstoff, Sauerstoff und Wasser zu reduzieren.selective catalytic reaction (SCR) of liquid urea is a process the mobile exhaust aftertreatment, especially in diesel engines suitable for treating nitrogen oxide (NOx) emissions. For a characteristic SCR application in liquid Urea becomes a urea solution, typically 33% urea in water, stored on board the vehicle and metered or metered by a pump and injected into the exhaust gas, where they are converted by thermal hydrolysis to ammonia and carbon dioxide decomposed. Ammonia then reacts above the SCR catalyst to NOx compounds prior to release to the atmosphere to nitrogen, To reduce oxygen and water.
An
Bord des Fahrzeugs gespeicherter Harnstoff bringt einzigartige technische
Herausforderungen mit sich. Wenn er zum Beispiel Temperaturen ausgesetzt
wird, die bei Bodengruppen-Abgaskomponenten üblich sind, kann der im Tank
gespeicherte Harnstoff beginnen, sich zu zersetzen und Ammoniak an
den Luftraum über
der Flüssigkeit
freizusetzen. Bei einer offenen entlüfteten Tankanlage kann sich etwas
Ammoniak, der leichter als Luft ist, nach oben und aus der Tankentlüftung heraus
bewegen. Da Ammoniak einen stechenden Geruch aufweist, den die meisten
Menschen in Konzentrationen von nur 5-20 ppmv wahrnehmen können, ist
es erwünscht,
aus der Abgasbehandlungsanlage austretenden Ammoniak zu minimieren
oder zu eliminieren. Vorgehen des Stands der Technik verwenden ein
gezielt betreibbares Gebläse
zum Einleiten von Luft in den Reduktionsmittelspeichertank oder
zum Beseitigen von Dämpfen
aus dem Tank, wie zum Beispiel in
Kurzdarlegung der ErfindungBrief description of the invention
Eine Anlage und ein Verfahren zum Steuern des Entlüftens einer eingebauten Speicher- und Verteilungsanlage eines Fahrzeugs für Schadstoffbehandlungssubstanzen, die gezielt eine Schadstoffbehandlungssubstanz aus einem Speichertank am Fahrzeug zu einer Abgasanlage eines Fahrzeugs abgibt, umfassen das gezielte Verbinden des Speichertanks mit der Abgasanlage, wenn der Druck in dem Speichertank einen der Abgasanlage zugeordneten vorbestimmten Druck übersteigt. Die Erfindung kann auch das gezielte Verbinden des Speichertanks mit der Atmosphäre umfassen, wenn ein Druckdifferential zwischen dem Speichertank und der Atmosphäre ein entsprechendes vorbestimmtes Druckdifferential übersteigt. Der Speichertank für die Schadstoffbehandlungssubstanz kann stromaufwärts eines Katalysators, der Ammoniak speichern oder dessen Zersetzung erleichtern kann, um das aus dem Fahrzeug austretende Ammoniak zu reduzieren oder zu eliminieren, mit der Abgasanlage verbunden sein.A Installation and method for controlling the venting of a built-in storage tank and distribution system of a vehicle for pollutant treatment substances, the targeted a pollutant treatment substance from a storage tank on the vehicle to an exhaust system of a vehicle, include the selective connection of the storage tank with the exhaust system, if the pressure in the storage tank assigned to the exhaust system predetermined Pressure exceeds. The invention may also include the selective connection of the storage tank with the atmosphere include when a pressure differential between the storage tank and the atmosphere corresponding predetermined pressure differential exceeds. The storage tank for the Pollutant treatment substance may be upstream of a catalyst, the Store ammonia or facilitate its decomposition to the to reduce or eliminate ammonia leaving the vehicle be connected to the exhaust system.
Ausführungen der vorliegenden Erfindung umfassen eine eingebaute Schadstoffbehandlungsanlage mit einem ersten Ventil zum gezielten Verbinden eines Speichertanks eines Fahrzeugs für eine Schadstoffbehandlungssubstanz mit einer Abgasanlage eines Fahrzeugs, wenn der Druck in dem Speichertank einen vorbestimmten Grenzwert übersteigt. Ein passives Einwegventil kann mit einem vorbestimmten Öffnungsdruck verwendet werden, der so gewählt wird, dass er über dem höchsten erwarteten Abgasanlagendruck liegt, um ein gezieltes Entlüften des Speichertanks zu ermöglichen, während Strömen von Abgas in den Speichertank reduziert oder eliminiert wird. Alternativ kann ein rechnergesteuertes Solenoid verwendet werden, um den Speichertank basierend auf vorherrschenden Motor-, Fahrzeug- und/oder Umgebungsbetriebsbedingungen gezielt mit der Abgasanlage des Fahrzeugs zu verbinden. Ein zweites Rückschlagventil oder Magnetventil kann zum gezielten Verbinden des Speichertanks mit der Atomsphäre verwendet werden, um Unterdruck und ein zugeordnetes Unterdrucksperren in der Schadstoffbehandlungsspeicher- und -verteilungsanlage zu reduzieren oder zu eliminieren.versions of the present invention include a built-in pollutant treatment plant with a first valve for selectively connecting a storage tank a vehicle for a pollutant treatment substance with an exhaust system of a vehicle, when the pressure in the storage tank exceeds a predetermined limit. One passive one-way valve can with a predetermined opening pressure be used, so chosen that he will over the highest expected exhaust system pressure is in order to vent the targeted To allow storage tanks while Stream exhaust gas is reduced or eliminated in the storage tank. alternative For example, a computer-controlled solenoid can be used to store the storage tank based on prevailing engine, vehicle and / or ambient operating conditions specifically to connect with the exhaust system of the vehicle. A second check valve or solenoid valve can be used to selectively connect the storage tank with the atomic sphere used to indicate negative pressure and an associated vacuum lock in the pollutant treatment storage and distribution system reduce or eliminate.
Die vorliegende Erfindung bietet eine Reihe von Vorteilen. Zum Beispiel sieht die vorliegende Erfindung eine passive Steuerung für das Entlüften einer Schadstoffbehandlungsanlage eines Fahrzeugs vor, um Speicherung und/oder Behandlung von Dämpfen vorzusehen, bevor diese an die Atmosphäre freigesetzt werden. Die vorliegende Erfindung reduziert oder eliminiert wahrnehmbaren Geruch, der mit der Freisetzung unbehandelter Dämpfe aus der Schadstoffbehandlungsanlage eines Fahrzeugs einhergeht. Zudem sieht die Erfindung eine Alternative zum offenen Entlüften vor, ohne ein Unterdrucksperren in der Schadstoffbehandlungsanlage zu induzieren.The present invention offers a number of advantages. For example, the present invention provides passive control for venting a pollutant treatment system of a vehicle to provide storage and / or treatment of vapors before they are released to the atmosphere. The present invention reduces or eliminates perceptible odor associated with the release of untreated vapors from a vehicle's pollutant treatment system. In addition, the invention provides an alternative to open venting without inducing a vacuum lock in the pollutant treatment plant.
Die obigen Vorteile und andere Vorteile und Merkmale der vorliegenden Erfindung gehen mühelos aus der folgenden eingehenden Beschreibung der bevorzugten Ausführungen in Verbindung mit den Begleitzeichnungen hervor.The above advantages and other advantages and features of the present Invention go effortlessly from the following detailed description of the preferred embodiments in conjunction with the accompanying drawings.
Kurzbeschreibung der ZeichnungenBrief description of the drawings
Eingehende Beschreibung der bevorzugten Ausführung(en)Detailed description of the preferred Embodiment (s)
Wie der Durchschnittsfachmann verstehen wird, können verschiedene erfindungsgemäße Merkmale, wie sie unter Bezug auf eine der Figuren veranschaulicht und beschrieben werden, mit Merkmalen kombiniert werden, die in einer oder mehreren anderen Figuren gezeigt werden, um erfindungsgemäße Ausführungen zu bilden, die nicht ausdrücklich veranschaulicht oder beschrieben sind. Die veranschaulichten Merkmalskombinationen sehen charakteristische Ausführungen für typische Anwendungen vor. Es können aber bei bestimmten Anwendungen oder Umsetzungen verschiedene Kombinationen und Abwandlungen der Merkmale, die mit der Lehre der vorliegenden Erfindung konform sind, erwünscht sein.As As will be understood by one of ordinary skill in the art, various features of the invention, as illustrated and described with reference to one of the figures be combined with features that are in one or more other figures are shown to form embodiments of the invention, not expressly illustrated or described. The illustrated feature combinations see characteristic designs for typical Applications before. It can but in certain applications or implementations different combinations and modifications of features consistent with the teachings of the present Invention are compliant, desirable be.
Unter
Bezug nun auf
Eine
Pumpe
Ferner
wird in
In
den die vorliegende Erfindung veranschaulichenden charakteristischen
Ausführungen wird
der Raum
Wie
ebenfalls in
Der
Durchschnittsfachmann wird verstehen, dass die Anlage
Die von einem Steuergerät ausgeführten Prozessschritte können vorrangig in Software umgesetzt werden, die von einem mikroprozessorbasierten Steuergerät ausgeführt wird, das zum Steuern der Schadstoffbehandlungsanlage dediziert sein kann oder auch zum Steuern des Motors und/oder Fahrzeugs verwendet werden kann. Natürlich können diese Schritte abhängig von der jeweiligen Anwendung in Software, Hardware oder einer Kombination aus Software und Hardware umgesetzt werden. Bei Umsetzung in Software wird die Steuerlogik bevorzugt in einem maschinell lesbaren Speichermedium vorgesehen, das gespeicherte Daten aufweist, die von einem Rechner oder Steuergerät ausgeführte Befehle zum Steuern der Anlage darstellen. Das maschinell lesbare Speichermedium bzw. die maschinell lesbaren Speichermedien können eine einer Reihe bekannter physikalischer Vorrichtungen sein, die elektrische, magnetische und/oder optische Vorrichtungen zum zeitweiligen oder dauerhaften Speichern von ausführbaren Befehlen und zugehörigen Kalibrierungsinformationen, Betriebsvariablen und dergleichen nutzen.The from a controller executed process steps can be implemented primarily in software that is based on a microprocessor control unit accomplished Dedicated to controlling the pollutant treatment plant may be or used to control the engine and / or vehicle can be. Naturally can these steps are dependent from the particular application in software, hardware or a combination be implemented from software and hardware. When implemented in software the control logic is preferably in a machine-readable storage medium provided that has stored data from a computer or control unit executed commands to control the plant. The machine-readable storage medium or the machine-readable storage media may be one of a number of known be physical devices, the electrical, magnetic and / or optical devices for temporary or permanent use Saving executable Commands and associated Use calibration information, operating variables and the like.
Block
Wenn
Block
Wie
ebenfalls in
Wenngleich die Beschreibung unter Bezug auf das Verbinden und Abkoppeln des Speichertankraums mit der Abgasanlage und/oder der Atmosphäre erfolgt, wird der Durchschnittsfachmann erkennen, dass diese Merkmale der Erfindung anders dargelegt werden können, als Steuern des Austretens von Dämpfen aus dem Speichertank, während Eindringen von Luft zugelassen wird, um ein Unterdrucksperren einer zugehörigen Schadstoffbehandlungsanlagenpumpe zu verhindern.Although the description with reference to connecting and disconnecting the Storage tank space with the exhaust system and / or the atmosphere takes place, One of ordinary skill in the art will recognize that these features are the Invention can be presented differently, as controlling the escape of dampen out of the storage tank while Ingress of air is allowed to cause a vacuum lock associated Prevent pollutant treatment plant pump.
Daher gibt die vorliegende Erfindung eine passive oder aktive Steuerung zum Entlüften einer Schadstoffbehandlungsanlage eines Fahrzeugs zum Vorsehen von Speicherung und/oder Behandlung von Dämpfen vor deren Ablassen an die Atmosphäre an die Hand. Die vorliegende Erfindung reduziert oder eliminiert wahrnehmbaren Geruch, der mit dem Ausstoß unbehandelter Dämpfe einer Schadstoffbehandlungsanlage eines Fahrzeugs in Verbindung steht. Ferner gibt die Erfindung eine Alternative zum offenen Entlüften an die Hand, ohne Unterdrucksperren in der Schadstoffbehandlungsanlage zu induzieren.Therefore The present invention provides passive or active control for venting a pollutant treatment plant of a vehicle for providing Storage and / or treatment of vapors before draining the atmosphere the hand. The present invention reduces or eliminates noticeable Odor, untreated with the output fumes a pollutant treatment system of a vehicle is in communication. Further, the invention provides an alternative to open venting the hand, without vacuum locks in the pollutant treatment plant to induce.
Während eingehend die beste Art zum Ausführen der Erfindung beschrieben wurde, wird der Fachmann, der mit dem Gebiet dieser Erfindung vertraut ist, verschiedene alternative Ausgestaltungen und Ausführungen zum Umsetzen der durch die folgenden Ansprüche festgelegten Erfindung erkennen.While in-depth the best way to do it of the invention, the person skilled in the art who is familiar with the In this invention, various alternative embodiments and versions for implementing the invention defined by the following claims detect.
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/421,057 US20070277505A1 (en) | 2006-05-30 | 2006-05-30 | Venting of on-board vehicle emissions treatment system |
US11/421,057 | 2006-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007022783A1 true DE102007022783A1 (en) | 2008-04-30 |
Family
ID=38135076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007022783A Withdrawn DE102007022783A1 (en) | 2006-05-30 | 2007-05-15 | Venting of a built-in pollutant treatment system of a vehicle |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070277505A1 (en) |
DE (1) | DE102007022783A1 (en) |
GB (1) | GB2438703A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8015801B2 (en) * | 2006-09-18 | 2011-09-13 | Ford Global Technologies, Llc | Management of a plurality of reductants for selective catalytic reduction |
US7726118B2 (en) * | 2006-09-18 | 2010-06-01 | Ford Global Technologies, Llc | Engine-off ammonia vapor management system and method |
FR2907027B1 (en) * | 2006-10-13 | 2009-05-15 | Peugeot Citroen Automobiles Sa | SYSTEM FOR TREATING NITROGEN OXIDES WITH LIMITATION OF AMMONIA RELEASES |
US7954311B2 (en) * | 2007-03-15 | 2011-06-07 | Ford Global Technologies, Llc | Ammonia vapor management system and method |
US8073610B2 (en) * | 2007-11-07 | 2011-12-06 | GM Global Technology Operations LLC | Method and apparatus to control warm-up of an exhaust aftertreatment system for a hybrid powertrain |
US20100101221A1 (en) * | 2008-10-28 | 2010-04-29 | Caterpillar Inc. | CATALYSTS, SYSTEMS, AND METHODS FOR REDUCING NOx IN AN EXHAUST GAS |
US8413424B2 (en) * | 2009-01-23 | 2013-04-09 | Caterpillar Inc. | Stored reductant state for startup |
US8033167B2 (en) | 2009-02-24 | 2011-10-11 | Gary Miller | Systems and methods for providing a catalyst |
EP2543837B1 (en) * | 2010-03-05 | 2016-11-23 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification apparatus of an internal combustion engine |
US11028752B2 (en) | 2018-02-12 | 2021-06-08 | Cummins Emission Solutions Inc. | Reductant insertion assembly comprising a bladder |
UA126319C2 (en) * | 2018-09-29 | 2022-09-14 | Вейчай Пауер Ко., Лтд. | Urea tank for scr aftertreatment system, and tank cover thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2533350Y2 (en) * | 1991-09-05 | 1997-04-23 | 本田技研工業株式会社 | Fuel vapor emission suppression device for internal combustion engine |
DE59202165D1 (en) * | 1992-05-08 | 1995-06-14 | Siemens Ag | Device for the denitrification of exhaust gas from an internal combustion engine. |
WO1996008639A1 (en) * | 1994-09-13 | 1996-03-21 | Siemens Aktiengesellschaft | Process and device for introducing a fluid into an exhaust gas purification system |
US6063350A (en) * | 1997-04-02 | 2000-05-16 | Clean Diesel Technologies, Inc. | Reducing nox emissions from an engine by temperature-controlled urea injection for selective catalytic reduction |
US6279603B1 (en) * | 1998-10-01 | 2001-08-28 | Ambac International | Fluid-cooled injector |
US6125629A (en) * | 1998-11-13 | 2000-10-03 | Engelhard Corporation | Staged reductant injection for improved NOx reduction |
DE19956493C1 (en) * | 1999-11-24 | 2001-01-04 | Siemens Ag | Device for removing nitrogen oxides from I.C. engine exhaust gas comprises a flow-through measuring device that determines the amount of excess reductant arranged in the pressure relieving line |
DE10139142A1 (en) * | 2001-08-09 | 2003-02-20 | Bosch Gmbh Robert | Exhaust gas treatment unit and measuring device for determining a concentration of a urea-water solution |
DE10155675A1 (en) * | 2001-08-18 | 2003-05-28 | Bosch Gmbh Robert | Method and device for storing and dosing a reducing agent |
US7065958B2 (en) * | 2002-05-07 | 2006-06-27 | Extengine Transport Systems | Emission control system |
US6941746B2 (en) * | 2002-11-21 | 2005-09-13 | Combustion Components Associates, Inc. | Mobile diesel selective catalytic reduction systems and methods |
WO2006087555A1 (en) * | 2005-02-16 | 2006-08-24 | Imi Vision Limited | Exhaust gas treatment |
-
2006
- 2006-05-30 US US11/421,057 patent/US20070277505A1/en not_active Abandoned
-
2007
- 2007-04-19 GB GB0707575A patent/GB2438703A/en not_active Withdrawn
- 2007-05-15 DE DE102007022783A patent/DE102007022783A1/en not_active Withdrawn
Also Published As
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GB0707575D0 (en) | 2007-05-30 |
US20070277505A1 (en) | 2007-12-06 |
GB2438703A (en) | 2007-12-05 |
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