Übersetzung für "Diesel oxidation catalyst" in Deutsch

The process is particularly suitable for monitoring a diesel oxidation catalyst.

How does the DOC (Diesel Oxidation Catalyst) system work?

The after treatment technology includes a Vert certified Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC).

This works by default with DOC (Diesel Oxidation Catalyst) or optionally with DPF (Diesel Particulate Filter).

In this case, a diesel oxidation catalyst is positioned between the first SCR catalyst and the catalytically activated particulate filter.

The HJS system combines a highly efficient, upstream diesel oxidation catalyst (DOC) with an SMF®.

SCR is expected to be universally used to meet the Euro 5 emission limits, in combination with a diesel particulate filter and diesel oxidation catalyst, but some engines may meet the requirements using SCR alone.

It is likely that a combination of Exhaust Gas Recirculation (EGR) and/or Selective Catalytic Reduction (SCR) together with a diesel particulate filter (DPF), diesel oxidation catalyst and possibly advanced turbocharging will become common solutions to meet the Euro 4 emission limits.

In such cases, it is necessary to integrate the inventive catalyst into an exhaust gas system which, as well as other exhaust gas cleaning units, for example diesel oxidation catalyst and/or diesel particulate filter, may also comprise other denoxing catalysts, preferably SCR catalysts.

Cummins uses a diesel oxidation catalyst (DOC) to effectively reduce carbon dioxide emissions to meet the US EPA’s non-road second stage emission standards.

Specially developed for agricultural applications, these common rail engines feature electronic injection with a pressure of 2,000 bar, a new valve concept, enlarged cylinders, a new crankshaft design, an electronic exhaust gas recirculation (EGR) management system and a diesel oxidation catalyst (DOC) system – all of which means they deliver maximum performance and constant torque even at low engine speeds.

Catalytic coatings which are suitable for realisation of such a standby function are for example TWC (Three Way Catalyst) or DOC (Diesel Oxidation Catalyst).

It is also advantageous when the exhaust gas system, on the inflow side to the nitrogen oxide storage catalyst, comprises at least one further catalyst with significant oxidizing power, for example a three-way catalyst or a diesel oxidation catalyst or a further nitrogen oxide storage catalyst.

Catalytic coatings, which are suitable for realizing such a stand-by function, are for example three-way catalyst (TWC) or diesel oxidation catalyst (DOC).

Here periodically the hydrocarbon oxidation is raised, usually by late post-injection of fuel into the combustion chamber, and the exothermy of the oxidation of these hydrocarbons on the diesel oxidation catalyst is determined using thermo-elements.

If the measured and expected values deviate too greatly from each other, damage to the diesel oxidation catalyst can be concluded.

However, particularly preferably, the diesel oxidation catalyst is provided as a coating zone on the first SCR catalyst on the outflow side, which allows for space savings.

By DOC (diesel oxidation catalyst) a person skilled in the art understands a catalyst which preferably acts as a cold-start hydrocarbon reservoir and in normal operation oxidizes unburnt hydrocarbons.

Therefore, in addition to the oxidation of hydrocarbons, the oxidation of NO to NO 2 in the diesel oxidation catalyst is particularly important today.

However, this method does not result in platinum concentrations in the zeolite that would be necessary for the use in a diesel oxidation catalyst (see for example J. M. Garcia-Cortes et al., Journal of Catalysis, 218 (2003), 111 to 122;