SCR-Components Gen 2 - Liquid Only
Dosing systems of the second generation work without compressed air. Their special feature is the exact dosing into the exhaust stream by means of a predefined spray behaviour. This allows the system to work still more precisely in closed loop systems.
Leagal requirements increase, package sizes cannot grow any bigger (Tank, AdBlue® tank, aggregates, catalysts, particle filters etc.). This means, that construction space is getting smaller, the distance for the hydrolytic process is getting shorter and its form is changing etc. Hilite is in the position to consider all these factors and to adopt the system to individual conditions and requirements.
SCR-Gen2 Function
The components
- Dosing unit
- Supply unit
Spray of the Dosing System Gen 2
- Spray process initial phase
- Spraying phase
- Spray process final phase
Exact spray (Drop sizes < 27 µm) is decisive for the hydrolysis (further evaporation and splitting into ammonia and CO2), so that the ammonia can react in the catalyst.
Finest spray allows excellent conversion rates (amount of the NOx reduction), but also the exact quantity is important since otherwise the conversion rates deteriorate and the ammonia slip becomes too big.
