Stage IIIB & Stage IV technologies

Several different technologies have been identified to meet the latest emission requirements : High Pressure Common Rail (HPCR) fuel system, Exhaust Gas Recirculation (EGR), Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR).

Doosan has decided to use a variety of these technologies, the choice of which depends upon the type of machine and the engine best suited for the machine. Below is an explanation of these different technologies.