EXHAUST GAS TREATMENT DEVICE AND NOZZLE FOR THE SAME

A nozzle (1) includes a nozzle body (10), a piston (2) movably disposed inside the nozzle body (10), and a spring (3) between the nozzle body (10) and the piston (2). A reducing agent flow channel (12) extends between a nozzle inlet (11) and a nozzle orifice (14), which widens towards a nozzle openi...

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Bibliographische Detailangaben
Hauptverfasser:	Gaiser, Gerd, Weller, Bernd
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES 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 HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A nozzle (1) includes a nozzle body (10), a piston (2) movably disposed inside the nozzle body (10), and a spring (3) between the nozzle body (10) and the piston (2). A reducing agent flow channel (12) extends between a nozzle inlet (11) and a nozzle orifice (14), which widens towards a nozzle opening (13). A piston head (21) closes or opens the nozzle orifice (14). The spring (3) biases the piston (2) to close the nozzle orifice (14) with the piston head (21). A largest diameter (D13) of the nozzle opening (13) is larger than a largest diameter (D21) of the piston head (21). An exhaust gas treatment device (5) includes a tank (51) for the liquid reducing agent, the nozzle (1), a reducing agent pump (53) and a reducing agent conduit (52). A control (54) is configured to operate the reducing agent pump (53) continuously with variable output.