SSANGYONG Y200 Manual page 2079

DI04-40
Catalytic Material
PAH (Aromatic HC)
Catalyzer
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
• Catalytic material supplies each CO and HC with O2 for
Catalytic Material
Y220_04044
• Catalytic material conversion process by DOC
Y220_04045
Method for reduction of NOx
NOx is generated a great deal in case that combustion tem-
perature and excess air factor are high. EGR valve can de-
crease NOx (30 to 35 % decrease) by making temperature of
combustion chamber fall by means of exhaust gas re-
circulation.
their oxidation : above 180°C
EXHAUST SYSTEM
DI ENG SM - 2004.4