BlueTDI Volkswagen TDI diesel direct injection technology based on research and development of cleaner engine technology version. BlueTDI technology with use of automobiles Nox purification procedures, NOx emissions can be reduced nearly 90 percent.
In the development process BlueTDI, reducing NOx emissions is a key, the internal Volkswagen engine made a number of improvements, such as improved design of the injection system, optimization of the high-pressure pump, and uses a cylinder pressure sensor, thereby realizing a new, cylinder pressure based combustion control significantly improves the speed and efficiency of each cylinder.
Another unique feature BlueTDI is outside the high-pressure exhaust gas recirculation system to increase the low-pressure exhaust gas recirculation system, and the two together. This dual-loop exhaust gas recirculation system which can effectively reduce nitrogen oxide emissions. Only double-loop exhaust gas recirculation system a, NOx emissions can be reduced 60 percent. Further, BlueTDI exhaust system downstream of the oxidation catalytic converter and the particulate trap increases nitrogen oxides collecting means, thereby minimizing the emission of nitrogen oxides. All of these application techniques, so that nitrogen oxide emissions reduced by 90 percentage.