Cummins Inc.

Hilite Germany Gmbh

Alexandre Branco

Friedrich Johann Zapf

Heico Stegmann

Andreas Lannig

Christian Schmidt

Klaus Lang

An exhaust-gas aftertreatment device is provided, comprising a control unit for controlling a diaphragm pump that draws a urea/water solution out of a circuit and pumps it, via a pressure filter, to a metering unit comprising an atomizing nozzle for atomizing the urea/water solution into an exhaust-gas stream. The metering unit may also comprise a metering valve, including an atomizing nozzle, a pressure and temperature sensor, a heating means and a return baffle.

Exhaust-gas aftertreatment device

The invention relates to an SCR exhaust gas aftertreatment device, particularly for diesel motor internal combustion engines having a very large exhaust gas volume and/or divided exhaust gas trains. In order to be able to manufacture this SCR exhaust gas aftertreatment device in a cost-efficient manner, also for a high mixing degree of exhaust gas and AUS, it is proposed that a plurality of metering units (D, D, D) is provided, each of which has an atomizing nozzle, which nozzle-injects the aqueous urea solution into the exhaust gas train. In this case, the pressure existing in a common line for all metering units (D, D, D) can be determined by means of a pressure sensor.

SCR exhaust gas aftertreatment device

The invention relates to an exhaust-gas aftertreatment device, comprising a control unit () for controlling a diaphragm pump () that draws a urea/water solution out of a circuit and pumps it, via a pressure filter (), to a metering unit comprising an atomizing nozzle for atomizing the urea/water solution into an exhaust-gas stream. In advantageous developments, the metering unit comprises a metering valve, including an atomizing nozzle, a pressure and temperature sensor, a heating means and a return baffle.

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Schwebheim, Germany

Alexandre Branco