DE102010000861A1 - Device for storing medium for exhaust gas treatment and electric energy, particularly for motor vehicles, has fluid storage for storing medium for exhaust gas treatment and electric storage which serves for storing electric energy - Google Patents
Device for storing medium for exhaust gas treatment and electric energy, particularly for motor vehicles, has fluid storage for storing medium for exhaust gas treatment and electric storage which serves for storing electric energy Download PDFInfo
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- DE102010000861A1 DE102010000861A1 DE102010000861A DE102010000861A DE102010000861A1 DE 102010000861 A1 DE102010000861 A1 DE 102010000861A1 DE 102010000861 A DE102010000861 A DE 102010000861A DE 102010000861 A DE102010000861 A DE 102010000861A DE 102010000861 A1 DE102010000861 A1 DE 102010000861A1
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
- B60K2015/03427—Arrangements or special measures related to fuel tanks or fuel handling for heating fuel, e.g. to avoiding freezing
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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
- 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
- F01N2240/04—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 an electric, e.g. electrostatic, device other than a heater
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1486—Means to prevent the substance from freezing
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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
- 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
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung betrifft das Gebiet der Abgasnachbehandlung für Kraftfahrzeuge. Speziell betrifft die Erfindung das Gebiet der Hybrid-Fahrzeuge mit einem DENOX-System.The invention relates to the field of exhaust gas aftertreatment for motor vehicles. Specifically, the invention relates to the field of hybrid vehicles with a DENOX system.
Zur Erfüllung bestimmter Abgasnormen ist es denkbar, dass Dieselfahrzeuge und gegebenenfalls Benzinfahrzeuge mit hohem Einspritzdruck und mit einem elektrischen Hybridantrieb zum Einsatz kommen. Zur Entstickung des Abgases kommt bei Dieselfahrzeugen beispielsweise ein SCR-System mit einer Harnstoff-Wasser-Lösung als Ammoniakquelle zum Einsatz. Die Anwendung eines SCR-Systems ist auch bei Benzinfahrzeugen denkbar. Bei einem DENOX-System kann die Harnstoff-Wasser-Lösung in einem Kunststofftank aus HDPE gespeichert und über ein Fördermodul zu einem am Abgasstrang angebrachten Dosiermodul gepumpt werden. Allerdings besteht hierbei das Problem, dass solch eine Lösung aus Harnstoff und Wasser bei etwa –11°C gefriert. Deshalb muss eine Heizung in dem Kunststofftank für die Lösung zum Auftauen der Lösung aus Harnstoff und Wasser bei kalten Umweltbedingungen vorgesehen sein.To meet certain emission standards, it is conceivable that diesel vehicles and possibly gasoline vehicles with high injection pressure and with a hybrid electric drive are used. For denitrification of the exhaust gas in diesel vehicles, for example, an SCR system with a urea-water solution as the source of ammonia is used. The application of an SCR system is also conceivable for gasoline vehicles. In a DENOX system, the urea-water solution can be stored in a plastic HDPE tank and pumped via a delivery module to a dosing module attached to the exhaust system. However, there is the problem that such a solution of urea and water freezes at about -11 ° C. Therefore, a heater must be provided in the plastic tank for the solution for thawing the solution of urea and water in cold environmental conditions.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Vorrichtung mit den Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, dass eine integrierte Anordnung der Komponenten zum Speichern von elektrischer Energie und zum Speichern des Mediums zur Abgasnachbehandlung möglich ist. Speziell ist eine effiziente Nutzung des zur Verfügung stehenden Bauraums möglich, wobei das gespeicherte Medium zur Abgasnachbehandlung und der elektrische Speicher wechselseitig eine entstehende Wärme günstig verteilen.The device according to the invention with the features of
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen der im Anspruch 1 angegebenen Vorrichtung möglich.The measures listed in the dependent claims advantageous developments of the device specified in
Während des Betriebs des Kraftfahrzeugs kann sich der elektrische Speicher aufheizen. Damit während des Betriebs eine zulässige Höchsttemperatur für den elektrischen Speicher nicht überschritten wird, ist, um eine Trennung des elektrischen Speichers von einem Verbraucher zu vermeiden, eine Kühlung für den elektrischen Speicher erforderlich. Durch die thermische Verbindung zwischen dem elektrischen Speicher und dem Flüssigkeitsspeicher kann die in dem elektrischen Speicher entstehende Wärme an das gespeicherte Medium abgegeben werden. Das gespeicherte Medium stellt somit eine zusätzliche Wärmekapazität zur Verfügung, die als Puffer dient. Umgekehrt kann es bei kalten Umweltbedingungen zu einem Gefrieren des gespeicherten Mediums kommen. Die in dem elektrischen Speicher entstehende Wärme kann dann in vorteilhafter Weise zum Erwärmen des gespeicherten Mediums dienen. Speziell kann eine Verflüssigung des gespeicherten Mediums erreicht werden, um eine Funktionsfähigkeit der Abgasnachbehandlung zu gewährleisten.During operation of the motor vehicle, the electric storage may heat up. So that a permissible maximum temperature for the electrical storage is not exceeded during operation, in order to avoid a separation of the electrical storage from a consumer, a cooling for the electrical storage is required. Due to the thermal connection between the electrical storage and the liquid storage, the heat generated in the electrical storage can be delivered to the stored medium. The stored medium thus provides an additional heat capacity, which serves as a buffer. Conversely, in cold environmental conditions freezing of the stored medium may occur. The heat generated in the electrical storage can then be used advantageously for heating the stored medium. Specifically, a liquefaction of the stored medium can be achieved in order to ensure a functionality of the exhaust aftertreatment.
Ferner kann bei einer Kombination eines elektrischen Hybridantriebs mit einem SCR-System der benötigte Bauraum zur Unterbringung des als SCR-Tank dienenden Flüssigkeitsspeichers und der Komponenten des Hybridantriebs, insbesondere des elektrischen Speichers, eines Pulswechselrichters und eines Elektromotors, effizient genutzt werden.Further, in a combination of a hybrid electric drive with an SCR system, the required space for accommodating the liquid storage serving as the SCR tank and the components of the hybrid drive, particularly the electric storage, a pulse inverter, and an electric motor can be efficiently utilized.
Vorteilhaft ist es, dass der elektrische Speicher zumindest teilweise an dem Flüssigkeitsspeicher und/oder zumindest teilweise in dem Flüssigkeitsspeicher angeordnet ist. Hierdurch wird zum einen eine gute thermische Verbindung zwischen dem elektrischen Speicher und dem in dem Flüssigkeitsspeicher gespeicherten Medium ermöglicht. Zum anderen kann ein mechanischer Schutz des elektrischen Speichers erreicht werden. Bei einem Unfall besteht die Gefahr, dass der elektrische Speicher beschädigt wird. Da der elektrische Speicher teuer ist, ist ein Schutz des elektrischen Speichers vor solch einer Beschädigung von Vorteil, wobei sich allerdings das Problem des zur Verfügung stehenden Bauraums stellt. Durch die Anordnung des elektrischen Speichers an oder in dem Flüssigkeitsspeicher kann der Flüssigkeitsspeicher als mechanischer Schutz für den elektrischen Speicher dienen. Hierdurch ist der elektrische Speicher insbesondere gegen mechanische Verformung geschützt. Außerdem kann beim Anordnen des elektrischen Speichers in dem Flüssigkeitsspeicher eine vorteilhafte thermische Isolierung gegenüber der Umgebung und gegebenenfalls eine Kühlung erzielt werden.It is advantageous that the electrical memory is at least partially disposed on the liquid storage and / or at least partially in the liquid storage. As a result, on the one hand, a good thermal connection between the electrical storage and the medium stored in the liquid storage is made possible. On the other hand, a mechanical protection of the electrical storage can be achieved. In the event of an accident, there is a risk of damaging the electrical storage. Since the electric storage is expensive, protection of the electric storage against such damage is advantageous, but there is the problem of the available space. The arrangement of the electrical storage on or in the liquid storage, the liquid storage can serve as a mechanical protection for the electrical storage. As a result, the electrical memory is protected against mechanical deformation in particular. In addition, when arranging the electrical storage in the liquid storage advantageous thermal insulation from the environment and optionally a cooling can be achieved.
Vorteilhaft ist es auch, dass eine Heizeinrichtung vorgesehen ist, die zum Aufheizen des in dem Flüssigkeitsspeicher gespeicherten Mediums dient. Der elektrische Speicher kann hierbei eine zusätzliche Wärmequelle darstellen, um das Medium in dem Flüssigkeitsspeicher zu erwärmen. Somit wird eine Erwärmung, insbesondere ein Auftauen, des Mediums speziell im Winter durch die Kombination der Wärmeentstehung im elektrischen Speicher und die Heizenergie der Heizeinrichtung verbessert. Direkt nach dem Motorstart kann umgekehrt die Heizeinrichtung für den Flüssigkeitsspeicher auch als Heizung für den elektrischen Speicher dienen. Dadurch kann der elektrische Speicher in einen vorteilhaften Temperaturbereich gebracht oder auf einer günstigen Betriebstemperatur gehalten werden.It is also advantageous that a heating device is provided which serves for heating the medium stored in the liquid storage. The electrical storage can in this case represent an additional heat source in order to heat the medium in the liquid storage. Thus, heating, in particular thawing, of the medium, especially in winter, is improved by the combination of heat generation in the electrical accumulator and the heating energy of the heating device. Conversely, directly after the engine start, the heater for the liquid storage can also serve as a heater for the electrical storage. As a result, the electrical memory can be brought into an advantageous temperature range or kept at a favorable operating temperature.
Außerdem ist es vorteilhaft, dass eine Ansauglanze vorgesehen ist, die zum Ansaugen des in dem Flüssigkeitsspeicher gespeicherten Mediums dient, und dass die Heizeinrichtung im Bereich zumindest einer Ansaugöffnung der Ansauglanze angeordnet ist. Hierdurch kann das Ansaugen eines gegebenenfalls stark gekühlten, flüssigen Mediums oder eines teilweise gefrorenen Mediums verbessert werden. Vorteilhaft ist hierbei auch, dass eine mit dem elektrischen Speicher verbundene Leistungselektronik vorgesehen ist und dass die Heizeinrichtung zumindest teilweise durch die Leistungselektronik gebildet ist. Hierdurch kann beispielsweise die Elektronik zur Steuerung eines DENOX-Systems und für ein Batteriemanagement ganz oder teilweise in die Vorrichtung integriert werden. Speziell kann die Leistungsendstufe für die Heizung des Flüssigkeitsspeichers in die Leistungselektronik des Hybridantriebs integriert werden. Moreover, it is advantageous that an intake lance is provided, which serves for sucking the medium stored in the liquid storage, and that the heating device is arranged in the region of at least one suction opening of the suction lance. As a result, the suction of an optionally strongly cooled liquid medium or a partially frozen medium can be improved. It is also advantageous here that a power electronics connected to the electrical memory is provided and that the heating device is at least partially formed by the power electronics. As a result, for example, the electronics for controlling a DENOX system and for a battery management wholly or partly be integrated into the device. Specifically, the power output stage for the heating of the liquid storage can be integrated into the power electronics of the hybrid drive.
Vorteilhaft ist es ferner, dass eine Fördereinheit und zumindest eine mit der Fördereinheit verbundene Flüssigkeitsleitung vorgesehen sind, dass die Flüssigkeitsleitung zumindest abschnittsweise an dem elektrischen Speicher entlang und/oder durch den elektrischen Speicher geführt ist und dass die Fördereinheit zum Fördern des in dem Flüssigkeitsspeicher gespeicherten Mediums durch die Flüssigkeitsleitung dient. Hierdurch kann das gespeicherte Medium auch als Kühlmittel für den elektrischen Speicher genutzt werden. Hierbei wird sichergestellt, dass das zur Kühlung notwendige Volumen nicht unterschritten wird. Falls bei der Inbetriebnahme des Kraftfahrzeugs das gespeicherte Medium gefroren ist, dann kann von dem elektrischen Speicher zunächst das gefrorene Medium in der Flüssigkeitsleitung, die an dem elektrischen Speicher entlang und/oder durch den elektrischen Speicher geführt ist, aufgetaut werden. Somit steht ein Teil des gespeicherten Mediums relativ rasch als Auftauvolumen zur Verfügung. Dadurch kann eine Erwärmung des gespeicherten Mediums verbessert werden. Außerdem kann gegebenenfalls eine separate Kühleinrichtung für den elektrischen Speicher entfallen. Hierbei ist es auch von Vorteil, dass die Flüssigkeitsleitung zumindest abschnittsweise mit einer oder mehreren Biegungen, insbesondere schlangenförmig, durch den elektrischen Speicher geführt ist. Hierdurch wird ein Wärmeaustausch weiter verbessert. Das durch die Flüssigkeitsleitung geförderte Medium wird vorzugsweise in den Flüssigkeitsspeicher zurückgeführt.It is furthermore advantageous that a delivery unit and at least one liquid line connected to the delivery unit are provided, that the liquid line is guided at least in sections along the electrical store and / or through the electrical store, and that the delivery unit for conveying the medium stored in the liquid store through the liquid line. As a result, the stored medium can also be used as a coolant for the electrical storage. This ensures that the volume required for cooling is not undershot. If the stored medium is frozen during the commissioning of the motor vehicle, then the frozen medium in the liquid line, which is guided along the electrical store and / or passed through the electrical store, can first be thawed by the electrical store. Thus, a portion of the stored medium is available relatively quickly as a thawing volume. As a result, heating of the stored medium can be improved. In addition, if necessary, a separate cooling device for the electrical storage omitted. It is also advantageous that the liquid line is at least partially guided with one or more bends, in particular serpentine, through the electrical storage. As a result, a heat exchange is further improved. The conveyed through the liquid line medium is preferably returned to the liquid storage.
In vorteilhafter Weise ist das in dem Flüssigkeitsspeicher speicherbare Medium ein Gemisch aus Harnstoff und Wasser. Ferner ist es vorteilhaft, dass der elektrische Speicher zumindest im Wesentlichen zum Speichern einer elektrischen Antriebsenergie für einen elektrischen Hybridantrieb dient. Somit kann eine Vorrichtung zum Speichern einer Lösung von Harnstoff in Wasser für die Abgasnachbehandlung und zum Speichern von elektrischer Energie geschaffen werden, die bei Dieselmotoren und gegebenenfalls auch bei direkteinspritzenden Benzinmotoren mit SCR-System und einem Hybridantrieb zum Einsatz kommen kann.Advantageously, the storable in the liquid storage medium is a mixture of urea and water. Furthermore, it is advantageous that the electrical memory at least essentially serves for storing an electrical drive energy for a hybrid electric drive. Thus, an apparatus for storing a solution of urea in water for exhaust aftertreatment and for storing electrical energy may be provided, which may be used in diesel engines and, optionally, direct injection gasoline engines with SCR system and hybrid propulsion.
Kurze Beschreibung der ZeichnungShort description of the drawing
Ausführungsformen der ErfindungEmbodiments of the invention
Die Vorrichtung
Das Medium
Das Medium
Die Vorrichtung
Außerdem ist eine Flüssigkeitsleitung
In diesem Ausführungsbeispiel ist ein Ausgang
Somit kann die Fördereinheit
Außerdem besteht der Vorteil, dass die Wärme des elektrischen Speichers
Somit kann in vorteilhafter Weise ein Ausgleich der zur Verfügung stehenden Wärmeenergie zwischen dem Medium
Die Erfindung ist nicht auf die beschriebenen Ausführungsbeispiele beschränkt.The invention is not limited to the described embodiments.
Claims (10)
Priority Applications (1)
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DE102010000861.3A DE102010000861B4 (en) | 2010-01-13 | 2010-01-13 | Device for storing a medium for exhaust gas aftertreatment and electrical energy |
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DE102010000861.3A DE102010000861B4 (en) | 2010-01-13 | 2010-01-13 | Device for storing a medium for exhaust gas aftertreatment and electrical energy |
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DE102010000861A1 true DE102010000861A1 (en) | 2011-07-14 |
DE102010000861B4 DE102010000861B4 (en) | 2023-11-16 |
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