METHOD FOR DETECTING THE LOADING STATE OF A FILTER IN AN SCR-DOSING SYSTEM

Described herein is a method for detecting a loading state of a filter (22), particularly a fine filter, in a Selective Catalytic Reduction (SCR) dosing system having a reducing agent tank (14), a supply pump (16), and at least one dosing unit (13), wherein the filter (22) is disposed between the su...

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Bibliographische Detailangaben
Hauptverfasser:	SCHMID, ALEXANDER, OFFENHUBER, MICHAEL
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WEAPONS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	Described herein is a method for detecting a loading state of a filter (22), particularly a fine filter, in a Selective Catalytic Reduction (SCR) dosing system having a reducing agent tank (14), a supply pump (16), and at least one dosing unit (13), wherein the filter (22) is disposed between the supply pump (16) and the at least one dosing unit (13). In an implementation, the method includes determining, during operation of the supply pump (16) in a back suction mode, the pressure between the filter (22) and the dosing unit (13), and concluding the loading state of the filter (22) based on the detected pressure.