The control unit has been designed for exhaust gas aftertreatment applications (Selective Catalytic Reduction - SCR, Diesel Particulate Filter - DPF) on truck engines for low emissions according to Euro IV, V and VI.
The diesel dosing system provides a simple and robust technology for delivering liquid diesel fuel into the exhaust path.
The Selective Catalytic Reduction (SCR) technology is a key technology in the area of NOx-reduction to meet future emission legislations especially in Europe and in the US.
NOx-emission reduction in exhaust gas of combustion processes containing oxygen requires the injection of small precise amounts of a reducing agent, controlled to the actual demand according to the operating conditions (Selective Catalytic Reduction process - SCR).
The air assisted reductant pump unit is metering and pressurizing the urea solution, mixing it with compressed air and injecting the mixture into the exhaust system by a passive working two-phase nozzle.
Exhaust after treatment in closed-coupled position will show advantages for commercial vehicles as it is already demonstrated in a wide range of passenger car applications