DE102018209363A1 - Container for a freezable fluid for use in a motor vehicle and method using the container - Google Patents
Container for a freezable fluid for use in a motor vehicle and method using the container Download PDFInfo
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- DE102018209363A1 DE102018209363A1 DE102018209363.6A DE102018209363A DE102018209363A1 DE 102018209363 A1 DE102018209363 A1 DE 102018209363A1 DE 102018209363 A DE102018209363 A DE 102018209363A DE 102018209363 A1 DE102018209363 A1 DE 102018209363A1
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- fluid
- pressure vessel
- valve
- internal combustion
- heating
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- 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
- F01N3/031—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 having means for by-passing filters, e.g. when clogged or during cold engine start
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- 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]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
- F02D9/06—Exhaust brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
- F02M25/0222—Water recovery or storage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
- F02M25/0224—Water treatment or cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0227—Control aspects; Arrangement of sensors; Diagnostics; Actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/025—Adding water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/08—Parameters used for exhaust control or diagnosing said parameters being related to the engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1602—Temperature of exhaust gas apparatus
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- 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
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- 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
- Y02T10/40—Engine management systems
Abstract
Erfindungsgemäß ist ein Behälter für ein Eis bildendes Fluid, zum Zuführen in einen Brennraum oder in eine Abgasleitung einer Brennkraftmaschine eines Kraftfahrzeugs, dadurch gekennzeichnet, dass der Behälter ein Druckbehälter ist, insbesondere aus Edelstahl oder Aluminium, insbesondere mit wenigstens einer verstärkenden Außenschicht aus CFK und/oder GFK, so kann dieser durch eine Heiz- und Druckerzeugungseinrichtung zum Erwärmen und Bedrucken des Fluids im Innenraum des Druckbehälters über eine Verbindungsleitung zu einer Abgasleitung der Brennkraftmaschine mit Abgas versorgt werden.According to the invention, a container for an ice-forming fluid, for supplying into a combustion chamber or an exhaust pipe of an internal combustion engine of a motor vehicle, characterized in that the container is a pressure vessel, in particular made of stainless steel or aluminum, in particular with at least one reinforcing outer layer of CFK and / or GRP, it can be supplied by a heating and pressure generating means for heating and printing the fluid in the interior of the pressure vessel via a connecting line to an exhaust pipe of the internal combustion engine with exhaust gas.
Description
Die Erfindung betrifft einen Behälter für ein beim Betrieb einer Brennkraftmaschine verwendbares Fluid und ein Verfahren zur Verwendung des Fluids mit Verwendung des Behälters nach dem Oberbegriff des Anspruchs 1.The invention relates to a container for a fluid usable in the operation of an internal combustion engine and to a method for using the fluid with use of the container according to the preamble of claim 1.
Bei mit Dieselkraftstoff betriebenen Verbrennungsmotoren wird zur Reduzierung von Stickoxiden eine Abgasbehandlung auf der Basis der selektiven katalytischen Reduktion (SCR) durchgeführt. Bei den dazu verwendeten SCR-Abgasreinigungssystemen wird zum Beispiel nach einem Vorkatalysator in den Abgasstrom ein Reduktionsmittel eingespritzt, welches einem im Fahrzeug befindlichen Reduktionsmitteltank entnommen wird. Als Reduktionsmittel kann hierfür eine wässrige Harnstofflösung mit einem Harnstoffanteil von 32,5 Prozent verwendet werden, die bei etwa minus 11 Grad Celsius gefriert. Um das Einfrieren des Reduktionsmittels zu verhindern, sind herkömmliche Reduktionsmitteltanks mit einer Heizeinrichtung ausgestattet.In diesel-fueled internal combustion engines, exhaust gas treatment based on Selective Catalytic Reduction (SCR) is performed to reduce nitrogen oxides. In the case of the SCR exhaust gas purification systems used for this purpose, for example, after a precatalyst into the exhaust gas flow, a reducing agent is injected, which is taken from a reducing agent tank located in the vehicle. As a reducing agent for this purpose, an aqueous urea solution with a urea content of 32.5 percent can be used, which freezes at about minus 11 degrees Celsius. In order to prevent the freezing of the reducing agent, conventional reducing agent tanks are equipped with a heater.
Bei manchen mit Ottokraftstoff betriebenen Verbrennungsmotoren wird Wasser zur Kühlung über die Einspritzanlage mit eingespritzt, um eine Vollastanreicherung des Gemischs vermeiden zu können. Die
Aus der
Für alle Anwendungen ist es Aufgabe der Erfindung, einen heizbaren Behälter für ein Eis bildendes Fluid, zum Zuführen in einen Kraftstoff- oder Abgasbereich einer Brennkraftmaschine eines Kraftfahrzeugs, zu schaffen, der auf einfache Weise eine sichere Versorgung des Kraftstoff- oder Abgasbereichs der Brennkraftmaschine mit dem Fluid gewährleistet, insbesondere mit Reduktionsmittel für eine SCR-Abgasanlage oder mit Wasser. Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst, insbesondere mittels einer Heiz- und Druckerzeugungseinrichtung nach Anspruch 2 und/oder 3. Ein Verfahren zum Betrieb der Heiz- und Druckerzeugungseinrichtung, das keine elektrische Energie verbraucht, kommt gemäß Anspruch 4 zur Anwendung.For all applications, it is an object of the invention to provide a heatable container for an ice-forming fluid, for supplying into a fuel or exhaust region of an internal combustion engine of a motor vehicle, which in a simple manner, a secure supply of the fuel or exhaust gas region of the internal combustion engine with the Ensures fluid, in particular with reducing agent for an SCR exhaust system or with water. This object is solved by the features of claim 1, in particular by means of a heating and pressure generating device according to claim 2 and / or 3. A method for operating the heating and pressure generating device, which consumes no electrical energy is used according to
Erfindungsgemäß ist ein Behälter für ein Eis bildendes Fluid, zum Zuführen in einen Brennraum oder in eine Abgasleitung einer Brennkraftmaschine eines Kraftfahrzeugs, dadurch gekennzeichnet, dass der Behälter ein Druckbehälter ist, insbesondere aus Edelstahl oder Aluminium, insbesondere mit wenigstens einer verstärkenden Außenschicht aus CFK und/oder GFK, also kohlefaser- und/oder glasfaserverstärktem Kunststoff.According to the invention, a container for an ice-forming fluid, for supplying into a combustion chamber or an exhaust pipe of an internal combustion engine of a motor vehicle, characterized in that the container is a pressure vessel, in particular made of stainless steel or aluminum, in particular with at least one reinforcing outer layer of CFK and / or GRP, ie carbon fiber and / or glass fiber reinforced plastic.
Vorteilhafterweise kann hierdurch eine durch Druckerhöhung im Behälter arbeitende Fördereinrichtung für das Fluid zum Einsatz kommen, die gleichzeitig das Fluid erwärmt, indem die Abgasenergie der Brennkraftmaschine genutzt wird, also Wärme und Druck.Advantageously, this can be used by a pressure increase in the container working conveyor for the fluid used, which also heats the fluid by the exhaust gas energy of the internal combustion engine is used, so heat and pressure.
Insbesondere durch eine Heiz- und Druckerzeugungseinrichtung zum Erwärmen und Bedrucken des Fluids in dem Druckbehälter die dadurch gekennzeichnet ist, dass ein Innenraum des Druckbehälters über eine Verbindungsleitung mit einer Abgasleitung der Brennkraftmaschine stromabwärts nach einer Abgasreinigungsanlage verbunden ist und dass jeweils ein Ventil eingebaut ist, ein erstes Ventil in ein Endrohr der Abgasanlage stromabwärts nach dem Anschluss der Verbindungsleitung, ein zweites Ventil in die Verbindungsleitung, und ein drittes Ventil in eine vom Druckbehälter ausgehende Zuführleitung zur Förderung des Fluids zu wenigstens einer Einspritzdüse.In particular, by a heating and pressure generating means for heating and printing the fluid in the pressure vessel which is characterized in that an interior of the pressure vessel is connected via a connecting line with an exhaust pipe of the internal combustion engine downstream of an exhaust gas purification system and that in each case a valve is installed, a first Valve in a tail pipe of the exhaust system downstream after connection of the connecting line, a second valve in the connecting line, and a third valve in a pressure vessel from the outgoing feed line for conveying the fluid to at least one injection nozzle.
Durch diese Ventile kann vorteilhafterweise zum Beispiel das Endrohr der Abgasanlage geschlossen und dadurch von der Brennkraftmaschine bedrucktes Abgas, bei gleichzeitig offenem Ventil in der Verbindungsleitung, durch diese in den Druckbehälter geleitet werden. Dieses heiße Abgas erhöht sowohl den Druck, als auch die Temperatur des Fluids im Druckbehälter und durch Öffnen des Ventils in der Zuführleitung wird Fluid zur Einspritzdüse der Brennkraftmaschine oder der Abgasanlage gefördert und dort mit entsprechendem Einspritzdruck zur gesteuerten Einspritzung bereitgestellt.By means of these valves, for example, the tailpipe of the exhaust system can advantageously be closed, and thus exhaust gas printed by the internal combustion engine, with the valve in the connecting line open at the same time, being passed through it into the pressure vessel. This hot exhaust gas increases both the pressure and the temperature of the fluid in the pressure vessel and by opening the valve in the supply line fluid is conveyed to the injection nozzle of the internal combustion engine or the exhaust system and provided there with a corresponding injection pressure for controlled injection.
Diese bevorzugt dadurch, dass die Ventile in Abhängigkeit voneinander und/oder von Parametern einer Brennkraftmaschinen-Steuereinrichtung in ihrem Öffnungsgrad verstellt werden, was eine genauere Fluiddrucksteuerung ermöglicht, gegenüber einer Verwendung von Ventilen mit ausschließlich nur einer Offen- und einer Schließstellung.This prefers in that the valves are adjusted in dependence on each other and / or parameters of an internal combustion engine control device in its opening degree, which allows a more accurate fluid pressure control, compared to a use of valves with only one open and one closed position.
Den Druckaufbau im Druckbehälter ermöglicht zum Beispiel ein Schließen des ersten Ventils am Abgasanlagen-Ausgang, also am Endrohr bei gleichzeitigen Öffnen des zweiten Ventils in der Verbindungsleitung und geschlossenem dritten Ventil in der Zuführleitung. Wenn dann ein vorgegebener Druck, zum Beispiel 10 bar, im Druckbehälter mittels eines Drucksensors gemessen wird, wird das zweite Ventil der Verbindungsleitung geschlossen und das Ventil am Endrohr öffnet wieder. Zur Steuerung der Förderung des Fluids dient ein Ventil in der Zuführleitung. Da das Abgas außerdem warm ist, kann dieses genutzt werden um gefrorenes Fluid im Tank aufzutauen. Um den Druck stand zu halten, sollte der Druckbehälter aus Edelstahl oder Aluminium mit jeweils einer CFK oder GFK Wicklung ausgeführt werden.The pressure build-up in the pressure vessel allows, for example, a closing of the first valve at the exhaust system outlet, ie at the tail pipe with simultaneous opening of the second valve in the exhaust Connecting line and closed third valve in the supply line. If then a predetermined pressure, for example 10 bar, is measured in the pressure vessel by means of a pressure sensor, the second valve of the connecting line is closed and the valve on the tailpipe opens again. To control the delivery of the fluid is a valve in the supply line. As the exhaust gas is also warm, it can be used to thaw frozen fluid in the tank. To withstand the pressure, the pressure vessel should be made of stainless steel or aluminum, each with a CFRP or GFRP winding.
Ein bevorzugtes Verfahren zum Betrieb der Heiz- und Druckerzeugungseinrichtung für das Fluid in dem Druckbehälter ist dadurch gekennzeichnet, dass Abgas ventilgesteuert, wenigstens oder ausschließlich wenn die Brennkraftmaschine ohne Last betrieben wird, wenigstens durch Öffnen des zweiten Ventils, zur Druckerhöhung und Erwärmung im Druckbehälter, in diesen geführt wird.A preferred method for operating the heating and pressure generating device for the fluid in the pressure vessel is characterized in that exhaust gas valve controlled, at least or exclusively when the internal combustion engine is operated without load, at least by opening the second valve to increase the pressure and heating in the pressure vessel, in this is led.
Wenn Abgas nur im Falle der Lastwegnahme von der Brennkraftmaschine durch den Fahrer in Richtung Druckbehälter geleitet wird, entsteht an dieser vorteilhafterweise keine Leistungseinbuße und es erhöht sich zusätzlich die Motorbremsleistung.If exhaust gas is directed by the driver in the direction of the pressure vessel only in the case of load removal from the internal combustion engine, this advantageously produces no loss of performance and, in addition, the engine braking power is increased.
Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung und der zugehörigen Zeichnung näher dargestellt. Dazu zeigt die einzige Figur in schematischer Darstellung einen erfindungsgemäßen Behälter für ein flüssiges Additiv zum Zuführen in einen Kraftstoffbereich oder in einen Abgasbereich einer Brennkraftmaschine eines Kraftfahrzeugs. Das Additiv kann zum Beispiel Wasser zum Einspritzen in einen Ottomotor oder eine Harnstofflösung zum Einspritzen in einen Dieselmotor sein.A preferred embodiment of the invention is illustrated in more detail in the following description and the accompanying drawings. For this purpose, the single FIGURE shows a schematic representation of a container according to the invention for a liquid additive for supplying in a fuel area or in an exhaust region of an internal combustion engine of a motor vehicle. The additive may be, for example, water for injection into a gasoline engine or a urea solution for injection into a diesel engine.
Ein in der Figur dargestellter Behälter, als Druckbehälter
So besteht die Entnahmevorrichtung, an einem Boden
Der Druckbehälter
Der Innenraum
Ein Öffnen des zweiten Ventils
Wenn ein vorgegebener Druck, zum Beispiel 10 bar, gemessen mittels eines nicht gezeichneten Drucksensors in der Verbindungsleitung
Im Falle einer Verwendung von Wasser als Fluid
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 1020151110204 A1 [0003]DE 1020151110204 A1 [0003]
- DE 102011108213 A1 [0004]DE 102011108213 A1 [0004]
Claims (4)
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DE102018209363.6A DE102018209363A1 (en) | 2018-06-12 | 2018-06-12 | Container for a freezable fluid for use in a motor vehicle and method using the container |
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DE102018209363.6A DE102018209363A1 (en) | 2018-06-12 | 2018-06-12 | Container for a freezable fluid for use in a motor vehicle and method using the container |
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DE102018209363A1 true DE102018209363A1 (en) | 2019-12-12 |
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DE102011108213A1 (en) | 2011-07-21 | 2013-01-24 | Audi Ag | Heatable reducing agent tank for supplying aqueous urea solution to selective catalytic reduction exhaust gas cleaning system for internal combustion engine of vehicle, has chamber flow-technically coupled with removal point |
DE102015110204A1 (en) | 2015-06-25 | 2017-01-12 | Krones Ag | Adiabatic high pressure generation |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102011108213A1 (en) | 2011-07-21 | 2013-01-24 | Audi Ag | Heatable reducing agent tank for supplying aqueous urea solution to selective catalytic reduction exhaust gas cleaning system for internal combustion engine of vehicle, has chamber flow-technically coupled with removal point |
DE102015110204A1 (en) | 2015-06-25 | 2017-01-12 | Krones Ag | Adiabatic high pressure generation |
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