Piublue
Piublue
The innovative exhaust gas control technology, called SCR, radically transforms studies and changes applied to conventional engines currently available on the market. As a matter of fact, the point of action of this technology shifts downstream along the engine running cycle, no longer intervening during combustion through fume recirculation channels and ducts, but after combustion, by adding AdBlue to these fumes before entering the catalytic converter.
This means that the new Euro 4 and Euro 5 engines are structurally simpler, while also allowing to save in terms of maintenance and service. AdBlue consists of a reagent, urea and water. The heat in the exhaust system converts urea, micronized through the appropriate injector, into carbon dioxide and ammonia. This is the active substance and the main component of the process that takes place within the SCR catalytic converter.
During the subsequent chemical-catalytic process, nitrogen oxides are transformed into nitrogen gas and water vapour. Nitrogen gas is a natural element in the air we breathe. Any ammonia residue is removed in the integrated Clean-up catalytic converter. AdBlue is a stable and colourless product, similar to water and it absolutely harmless (non-explosive, non-toxic, non-flammable) and odourless, without any storage and transportation restrictions.
The AdBlue quality level is guaranteed and the additive meets DIN 70070 standard. The liquid consists of 32.5% urea diluted in deionised water.
The consumption of this product, controlled through an appropriate control unit, occurs in percentage with respect to the consumption of diesel fuel. This percentage ranges from 3-5% for Euro 4 engines up to 6-9% for Euro 5 engines. New vehicles will be fitted with appropriate 40 l to 90 l fuel tanks, thus providing a range of almost 2000 km before refilling with AdBlue. The new SCR technology has added countless benefits. The redesigned engines provide improved performance, increased reliability, longer service intervals and reduced fuel consumption.
