VORRICHTUNG ZUR DOSIERUNG EINES REDUKTIONSMITTELS

The invention relates to a device for dosing a reducing agent, especially a urea or a urea-water solution, comprising means for feeding the reducing agent into a catalytic converter (30) provided for removing nitrogen oxides from the exhaust gases, in particular, of a diesel engine. According to the...

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Bibliographische Detailangaben
Hauptverfasser:	MAYER, HANSPETER, MUELLER, GERHARD, OFFENUBER, MICHAEL, MOELL, ALEXANDER, MOELL, BRIGITTE, MOELL, HELMUT, HUBER, SVEN
Format:	Patent
Sprache:	ger
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NOZZLES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL STEAM ENGINES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a device for dosing a reducing agent, especially a urea or a urea-water solution, comprising means for feeding the reducing agent into a catalytic converter (30) provided for removing nitrogen oxides from the exhaust gases, in particular, of a diesel engine. According to the invention, the means comprise a dosing pump (4, 4a; 80, 4a), and an orifice (8a, 71), through which the feeding can be effected, is connected after said dosing pump. No additional elements for controlling the feeding of the reducing agent are arranged between the dosing pump and the orifice. This configuration results in the provision of a compact design, and the use of components that are susceptible to wear is largely eliminated.