The SCRFilter system from Liebherr comprises a DOC catalytic converter, a SCR catalytic converter and a SCR-coated particulate filter.

The SCRFilter system from Liebherr comprises a DOC catalytic converter, a SCR catalytic converter and a SCR-coated particulate filter.

The SCR-catalyst (18) is embodied in the waste gas line (14).

The SCRFilter system from Liebherr comprises a DOC catalytic converter, a SCR catalytic converter and a SCR-coated particulate filter.

At least one turbocharger (16, 18) is connected in front of the SCR catalytic converter (24).

The SCRFilter system from Liebherr comprises a DOC catalytic converter, a SCR catalytic converter and a SCR-coated particulate filter.

An engine (1) is provided with an SCR catalyst (41) for purifying NOx and a urea injection valve (230) for adding urea water to the SCR catalyst (41).

Both SCR catalysts are free of vanadium compounds and only the SCR catalyst installed on the downstream side contains zeolite compounds.

In addition, a method for the determination of the NH3 level of an SCR catalytic converter is claimed.

An NSR catalyst, an NOx sensor, and an SCR catalyst are provided in that sequence from the upstream side of an exhaust passage.

One can employ well-known SCR catalysts and advantageously the exhaust gas after the turbine is passed through a layer of SCR catalyst followed by a layer of a combustion catalyst.

The SEAT Alhambra TDI is additionally equipped with an SCR catalytic converter (Selective Catalytic Reduction).

In this way, the acidic condensed water is neutralized by ammonia effused from the urea SCR catalyst.

Contamination could damage the catalyst in your SCR system.

These materials could create malfunctions in your SCR-catalyst.