DE102017006596A1 - Sensor device for an exhaust tract of an internal combustion engine, in particular for a motor vehicle - Google Patents
Sensor device for an exhaust tract of an internal combustion engine, in particular for a motor vehicle Download PDFInfo
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- DE102017006596A1 DE102017006596A1 DE102017006596.9A DE102017006596A DE102017006596A1 DE 102017006596 A1 DE102017006596 A1 DE 102017006596A1 DE 102017006596 A DE102017006596 A DE 102017006596A DE 102017006596 A1 DE102017006596 A1 DE 102017006596A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4077—Means for protecting the electrolyte or the electrodes
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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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
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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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/14—Exhaust treating devices having provisions not otherwise provided for for modifying or adapting flow area or back-pressure
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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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
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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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
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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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
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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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor
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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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
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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
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1402—Exhaust gas composition
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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
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1404—Exhaust gas temperature
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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
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1406—Exhaust gas pressure
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Electrochemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Exhaust Silencers (AREA)
Abstract
Die Erfindung betrifft eine Sensoreinrichtung (12) für einen Abgastrakt (10) einer Verbrennungskraftmaschine, mit wenigstens einem zum Erfassen wenigstens einer ein den Abgastrakt durchströmendes Gas charakterisierenden Messgröße ausgebildeten Sensorelement (14), welches wenigstens einen Einlass (16), über welchen das Gas in das Sensorelement (14) einleitbar ist, und wenigstens einen Auslass (18) aufweist, über welchen das über den Einlass (16) in das Sensorelement (14) eingeleitet Gas aus dem Sensorelement (14) ausleitbar ist, wobei eine wenigstens einen außerhalb des Sensorelements (14) und in Strömungsrichtung des das Sensorelement (14) durchströmenden Gases zwischen dem Einlass (16) und dem Auslass (18) angeordneten Wandungsbereich (22) aufweisende Aufstaueinrichtung (20) vorgesehen ist, mittels welcher ein Druckgefälle von dem Einlass (16) zu dem Auslass (18) bewirkbar ist.The invention relates to a sensor device (12) for an exhaust tract (10) of an internal combustion engine, having at least one sensor element (14) which is designed to detect at least one gas flowing through the exhaust gas tract and has at least one inlet (16) via which the gas flows the sensor element (14) can be introduced, and has at least one outlet (18) via which the gas introduced into the sensor element (14) via the inlet (16) can be diverted from the sensor element (14), one at least one outside the sensor element (14) and in the flow direction of the gas flowing through the sensor element (14) between the inlet (16) and the outlet (18) disposed wall region (22) having accumulating means (20) is provided, by means of which a pressure drop from the inlet (16) the outlet (18) is effected.
Description
Die Erfindung betrifft eine Sensoreinrichtung für einen Abgastrakt einer Verbrennungskraftmaschine, insbesondere für ein Kraftfahrzeug, gemäß dem Oberbegriff von Patentanspruch 1.The invention relates to a sensor device for an exhaust gas tract of an internal combustion engine, in particular for a motor vehicle, according to the preamble of patent claim 1.
Derartige Sensoreinrichtungen für jeweilige Abgastrakte von Verbrennungskraftmaschinen, insbesondere für Kraftfahrzeuge, sind aus dem allgemeinen Stand der Technik und insbesondere aus dem Serienfahrzeugbau bereits hinlänglich bekannt. Insbesondere kommt eine solche Sensoreinrichtung in einem Abgastrakt eines Nutzfahrzeugs zum Einsatz. Die Sensoreinrichtung umfasst dabei wenigstens ein Sensorelement, mittels welchem wenigstens eine ein Gas beziehungsweise dessen Strömung charakterisierende Messgröße erfassbar ist. Das Sensorelement weist dabei wenigstens einen Einlass auf, über welchen das Gas, insbesondere während es durch den Abgastrakt strömt, in das Sensorelement einleitbar ist beziehungsweise einströmt. Ferner weist das Sensorelement wenigstens einen Auslass auf, über welchen das Gas, insbesondere während es durch den Abgastrakt strömt, aus dem Sensorelement ausleitbar ist beziehungsweise ausgeleitet wird. Dies bedeutet, dass das Gas über den Einlass in das Sensorelement einströmt und über den Auslass aus dem Sensorelement ausströmt.Such sensor devices for respective exhaust tracts of internal combustion engines, in particular for motor vehicles, are already well known from the general state of the art and in particular from the production of standard vehicles. In particular, such a sensor device is used in an exhaust tract of a commercial vehicle. In this case, the sensor device comprises at least one sensor element, by means of which at least one measured variable characterizing a gas or its flow can be detected. In this case, the sensor element has at least one inlet, via which the gas, in particular while it is flowing through the exhaust gas tract, can be introduced or flows into the sensor element. Furthermore, the sensor element has at least one outlet, via which the gas, in particular while it flows through the exhaust gas tract, can be diverted or discharged from the sensor element. This means that the gas flows into the sensor element via the inlet and flows out of the sensor element via the outlet.
Darüber hinaus offenbart die
Aufgabe der vorliegenden Erfindung ist es, eine Sensoreinrichtung der eingangs genannten Art derart weiterzuentwickeln, dass die Messgröße besonders vorteilhaft erfasst werden kann.Object of the present invention is to develop a sensor device of the type mentioned in such a way that the measured variable can be detected particularly advantageous.
Diese Aufgabe wird durch eine Sensoreinrichtung mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen Weiterbildungen der Erfindung sind in den übrigen Ansprüchen angegeben.This object is achieved by a sensor device having the features of patent claim 1. Advantageous embodiments with expedient developments of the invention are specified in the remaining claims.
Um eine Sensoreinrichtung der im Oberbegriff des Patentanspruchs 1 angegebenen Art derart weiterzuentwickeln, dass die Messgröße besonders vorteilhaft erfasst beziehungsweise gemessen werden kann, ist erfindungsgemäß eine Aufstaueinrichtung vorgesehen, welche wenigstens einen außerhalb des Sensorelements angeordneten Wandungsbereich aufweist, welcher in Strömungsrichtung des das Sensorelement durchströmenden Gases zwischen dem Einlass und dem Auslass angeordnet ist, wobei mittels der Aufstaueinrichtung ein Druckgefälle von dem Einlass zu dem Auslass hin bewirkbar ist. Unter dem durch die Aufstaueinrichtung bewirkten Druckgefälle ist insbesondere zu verstehen, dass an dem Einlass beziehungsweise in dessen Bereich ein größerer Druck als an dem Auslass beziehungsweise in dessen Bereich herrscht, sodass das Gas, insbesondere während es durch den Abgastrakt strömt, besonders vorteilhaft in den Einlass und über den Einlass in das Sensorelement einströmt und aus dem Auslass beziehungsweise über den Auslass aus dem Sensorelement ausströmt.In order to develop a sensor device specified in the preamble of claim 1 type such that the measured variable can be particularly advantageously detected or measured, a Aufstaueinrichtung is provided according to the invention, which has at least one arranged outside the sensor element wall region, which in the flow direction of the gas flowing through the sensor element between is arranged at the inlet and the outlet, wherein by means of the damming device, a pressure gradient from the inlet to the outlet is effected. The pressure gradient caused by the damming device is to be understood in particular as meaning that a greater pressure prevails at the inlet or in its region than at the outlet or in its region, so that the gas, in particular while it flows through the exhaust gas tract, is particularly advantageous in the inlet and flows in via the inlet into the sensor element and flows out of the outlet or via the outlet from the sensor element.
Der Erfindung liegt insbesondere die Erkenntnis zugrunde, dass es in einem Abgastrakt der Verbrennungskraftmaschine zu ungünstigen Strömungen an Sensorelementen kommen kann, woraus ein langsames Sensorsignal resultiert. Dies führt zu einem nur unzureichenden Regelkreis beziehungsweise zu einer nur unzureichenden Geschwindigkeit eines solchen Regelkreises. Bei einer motorischen Anwendung eines solchen Sensors in einem Abgasstrang kann das langsame Sensorsignal und somit der schlechte beziehungsweise langsame Regelkreis einen emissions- und kraftstoffverbrauchsgünstigen Betrieb der Verbrennungskraftmaschine beeinträchtigen, was nun jedoch mittels der erfindungsgemäßen Sensoreinrichtung vermieden werden kann. Durch geeignete Positionierung der geeigneten Aufstaueinrichtung, insbesondere deren Wandungsbereichs, kann im Vergleich zu einem Abgastrakt beziehungsweise zu einer Sensoreinrichtung ohne die Aufstaueinrichtung eine Druckdifferenz zwischen dem Einlass und dem Auslass erhöht werden. Diese Erhöhung der Druckdifferenz führt zu einer verbesserten Durchströmung des Sensorelements. Die Erhöhung der Druckdifferenz und die daraus resultierende verbesserte Durchströmung des Sensorelements resultieren daraus, dass das Gas, insbesondere dessen Strömung, am Einlass beziehungsweise in dessen Bereich mittels des Wandungsbereichs aufgestaut wird. Somit kommt es zu einem besonders hohen Druck an dem Einlass. Durch eine geeignete Formgebung der Vorrichtung wird das Gas, insbesondere dessen Strömung, besonders vorteilhaft in Richtung des Auslasses beziehungsweise in dessen Bereich geleitet, sodass beispielsweise lokale Übergeschwindigkeiten bewirkt werden können. Dies führt beispielsweise zu einer Druckminderung an dem Auslass beziehungsweise in dessen Bereich, sodass ein besonders großes Druckgefälle beziehungsweise eine besonders große Druckdifferenz zwischen dem Einlass und dem Auslass realisierbar ist.The invention is based in particular on the recognition that unfavorable flows of sensor elements can occur in an exhaust tract of the internal combustion engine, resulting in a slow sensor signal. This leads to an insufficient control loop or to an insufficient speed of such a control loop. In a motorized application of such a sensor in an exhaust system, the slow sensor signal and thus the poor or slow control loop can affect a low-emission and fuel-efficient operation of the internal combustion engine, which can now be avoided by means of the sensor device according to the invention. By suitable positioning of the suitable damming device, in particular its wall region, a pressure difference between the inlet and the outlet can be increased compared to an exhaust gas tract or to a sensor device without the damming device. This increase in the pressure difference leads to an improved flow through the sensor element. The increase in the pressure difference and the resulting improved flow through the sensor element result from the fact that the gas, in particular its flow, is dammed up at the inlet or in its region by means of the wall region. Thus, there is a particularly high pressure at the inlet. By a suitable shaping of the device, the gas, in particular its flow, is guided in a particularly advantageous manner in the direction of the outlet or in its region, so that, for example, local overspeeds can be effected. This leads for example to a pressure reduction at the outlet or in its region, so that a particularly large pressure gradient or a particularly large pressure difference between the inlet and the outlet can be realized.
Vorzugsweise ist es vorgesehen, dass die Aufstaueinrichtung das Sensorelement zumindest überwiegend und dabei beispielsweise bis auf eine der Strömung des Gases zugewandte Seite umschließt, wodurch die Aufstaueinrichtung einen besonders vorteilhaften Strömungswiederstand darstellt und somit das Gas besonders vorteilhaft aufstauen kann. Dabei ist es denkbar, dass die Vorrichtung, insbesondere gegebenenfalls begrenzt, von dem Gas durchströmt wird. Hierzu weist beispielsweise die Aufstaueinrichtung eine entsprechende Lochung oder dergleichen auf, durch die das Gas hindurchströmen kann. It is preferably provided that the damming device encloses the sensor element at least predominantly and thereby, for example, up to a side facing the flow of the gas, whereby the damming device is a particularly advantageous flow resistance and thus can accumulate the gas particularly advantageous. It is conceivable that the device, in particular optionally limited, is flowed through by the gas. For this purpose, for example, the Aufstaueinrichtung on a corresponding perforation or the like, through which the gas can flow.
Im Vergleich zu herkömmlichen Sensoreinrichtungen ist durch die erfindungsgemäße Sensoreinrichtung verbessertes und schnelleres Sensorsignal darstellbar, sodass ein verbesserter Regelkreis realisiert werden kann. Bei einer motorischen Anwendung in einem Abgasstrang kann somit ein besonders emissions- und kraftstoffverbrauchsarmer Betrieb der Verbrennungskraftmaschine realisiert werden.Compared to conventional sensor devices, the improved and faster sensor signal can be represented by the sensor device according to the invention, so that an improved control loop can be realized. In a motor application in an exhaust system, a particularly low emission and fuel consumption of the internal combustion engine can thus be realized.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels sowie anhand der Zeichnung. Die vorstehend in der Beschreibung genannten Merkmale und Merkmalskombinationen sowie die nachfolgend in der Figurenbeschreibung genannten und/oder in den Figuren alleine gezeigten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar, ohne den Rahmen der Erfindung zu verlassen.Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiment and from the drawing. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or in the figures alone can be used not only in the respectively specified combination but also in other combinations or in isolation, without the scope of To leave invention.
Die Zeichnung zeigt in:
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1 ausschnittsweise eine schematische Perspektivansicht eines Abgastrakts einer Verbrennungskraftmaschine, insbesondere für ein Kraftfahrzeug, mit einer erfindungsgemäßen Sensoreinrichtung; und -
2 eine schematische Perspektivansicht der Sensoreinrichtung.
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1 a schematic perspective view of an exhaust tract of an internal combustion engine, in particular for a motor vehicle, with a sensor device according to the invention; and -
2 a schematic perspective view of the sensor device.
In den Fig. sind gleiche oder funktionsgleiche Elemente mit gleichen Bezugszeichen versehen.In the figures, the same or functionally identical elements are provided with the same reference numerals.
Das Sensorelement
Um nun die Messgröße besonders vorteilhaft erfassen und in der Folge den Regelkreis besonders vorteilhaft und insbesondere besonders schnell realisieren zu können, umfasst die Sensoreinrichtung
Der Wandungsbereich
Außerdem umfasst die Aufstaueinrichtung
Mit anderen Worten, bezogen auf eine Strömungsrichtung, in die das Gas durch das Sensorelement
Um beispielsweise das Sensorelement
Außerdem ist aus
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1010
- Abgastraktexhaust tract
- 1212
- Sensoreinrichtungsensor device
- 1414
- Sensorelementsensor element
- 1616
- Einlassinlet
- 1818
- Auslassoutlet
- 2020
- AufstaueinrichtungAufstaueinrichtung
- 2222
- Wandungsbereichwall region
- 2424
- Seitepage
- 2626
- Wandungsbereichwall region
- 2828
- Seitepage
- 3030
- Aufnahmeadmission
- 3232
- Seitepage
- 3434
- Seitepage
- 3636
- Wandungsbereichwall region
- 3838
- Kammerchamber
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 102007016976 A1 [0003]DE 102007016976 A1 [0003]
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DE102017006596.9A DE102017006596A1 (en) | 2017-07-12 | 2017-07-12 | Sensor device for an exhaust tract of an internal combustion engine, in particular for a motor vehicle |
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DE102017006596.9A DE102017006596A1 (en) | 2017-07-12 | 2017-07-12 | Sensor device for an exhaust tract of an internal combustion engine, in particular for a motor vehicle |
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DE102017006596A1 true DE102017006596A1 (en) | 2019-01-17 |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP3767086A1 (en) * | 2019-07-16 | 2021-01-20 | Renault S.A.S. | Sensor for measuring gas properties |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007016976A1 (en) | 2007-04-10 | 2008-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Protective cap for a gas sensor and gas sensor |
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2017
- 2017-07-12 DE DE102017006596.9A patent/DE102017006596A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102007016976A1 (en) | 2007-04-10 | 2008-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Protective cap for a gas sensor and gas sensor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3767086A1 (en) * | 2019-07-16 | 2021-01-20 | Renault S.A.S. | Sensor for measuring gas properties |
FR3098853A1 (en) * | 2019-07-16 | 2021-01-22 | Renault S.A.S. | Gas property measurement sensor. |
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