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AFTER TREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES

AFTER TREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES
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AFTER TREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES - 1

AFTERTREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES SCR SYSTEM DIESEL PARTICULATE FILTER GENUINE PARTS

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AFTER TREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES - 2

Customer Service GENUINE PARTS How the Genuine FPT ATS works The After Treatment System (ATS) converts the pollutants present in exhaust gases produced by the engines into substances that do no harm the people or the environment. The most critical pollutants produced by Diesel engines are: NITROGEN OXIDES (NOx) At high engine combustion temperatures, Nitrogen (N2) & Oxygen (O2) combine and react producing Nitrogen Oxides (NOx). NOx can cause acid rain and ozone layer exhaustion. PARTICULATE MATTER (PM) Is made of small carbon and other toxic substances particles created by incomplete fuel...

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AFTER TREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES - 3

Customer Service GENUINE PARTS FPT has selected the combination of SCR (Selective Catalytic Reduction) and DPF (Diesel Particulate Filter) for the medium (NEF) and heavy engine (Cursor) families to meet Euro VI emission standards and following. SCR (Selective Catalytic Reduction) system has the task to reduce di NOx emissions by using gaseous ammonia (NH3). Ammonia is created by the conversion of DEF (Diesel Exhaust Fluid) injected in the exhaust line. DPF (Diesel Particulate Filter) has the task to physically trap the solid soot particles produced by the diesel engine combustion. UREA...

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AFTER TREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES - 4

Customer Service GENUINE PARTS SCR N2 NO2 NO AdBlue Urea + Water dosing system Control system connected to engine CPU The injector introduces the DEF (stored into a specific tank) in front of the mixer element. DEF standard composition is made of 32,5% urea and 67,5 demineralized water and this solution is sold in Europe under the trade name of AdBlue®. The mixer element will combine the AdBlue with the exhaust gases into a homogeneous gaseous mixture. The mixture enters the SCR catalyst where the chemical reactions take place. The SCR transforms NOx into water vapor and Nitrogen, common...

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AFTER TREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES - 5

Customer Service GENUINE PARTS DOC & DPF Diesel Oxidation Catalyst (DOC) is a device capable to promote a series of oxidation reactions using O2 in lean operative conditions. Diesel particulate filter (DPF) has the function to retain and accumulate particles coming from exhaust gases and prevent them of being released into the atmosphere. Its structure is made by alternatively open/closed porous ceramic channels, so that, because of their size, particles are trapped inside the filter while gases pass through the porous walls. When there are enough soot particles accumulated into the...

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AFTER TREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES - 6

Customer Service GENUINE PARTS Genuine FPT ATS performance Inside the combustion chamber, Particulate Matter (PM) and Nitrogen Oxides (NOx) have conflicting chemical factors. A high combustion temperature leads to economic fuel consumption and low particulate (PM) levels, BUT it generates a high rate of NOx production. When the engine is operating most efficiently for power, minimal PM is produced. However, the NOx levels are very high. When exhaust gas is recirculated back into the intake, the NOx production is reduced. However, higher levels of PM are created. NO DIESEL ENGINE currently...

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AFTER TREATMENT SYSTEMS FOR MEDIUM AND HEAVY ENGINES - 7

Customer Service GENUINE PARTS Why you should choose a Genuine FPT ATS As the emission legislation becomes more and more severe, it is fundamental that the engine is developed together with its ATS system: each phase in the combustion chamber, in any working condition, must be finely calibrated to ensure the best possible ambience for catalyzation and filtration processes to always meet the emission requirements and performance targets. FPT develops specific solutions, according to the characteristics and the mission profile each FPT engine has been designed for. Every component of the ATS...

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