Innovations

NOx exhaust treatment system SCRNOx exhaust treatment system SCR

NOx

The purpose of the catalytic converter is to selectively convert the exhaust constituent nitrogen oxide (NOx) into nitrogen and water without producing undesirable by-products. The nitrogen oxide is converted using a synthetically produced aqueous urea solution, e.g. AdBlue, which is carried in an auxiliary tank. The substance, containing 32.5 percent urea, is added continuously to the exhaust tract upstream of the SCR catalytic converter. It is metered according to the mass flow rate of the exhaust gas and is precisely regulated by the engine management system, which receives information from the NOx sensor behind the SCR catalytic converter. NOx exhaust treatment system SCR is one of the efficient and environmentally compatible technologies bundled by Volkswagen under the BlueMotionTechnologies umbrella brand002E

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