Untreated emissions from a diesel engine contains a cocktail of harmful chemicals and particulate matter, however today’s system can reduce this down to harmless substances, oxygen, and water. The exhaust aftertreatment devices that are applied to vehicles are Diesel Oxidation Catalysts (DOC), Diesel Particulate Filters (DPF) and Selective Catalytic Reduction (SCR) catalysts. Using a combination of physical mechanisms and chemical reactions these systems can, under the right conditions, achieve near complete removal of particulates and harmful gases. The function of the Diesel Particulate Filter (DPF) is to filter the diesel particulate matter (PM), also known as soot, out of the exhaust gas. The filter traps any matter larger than one micron while allowing the gas through. Over time, soot builds up in the DPF. Eventually this causes backpressures which is detected by the Engine Control Unit (ECU), causing regeneration within the DPF. Regeneration requires high exhaust temperatures of 570°-750°C. Combining high temperature and a unique mix of precious metals wash coat, the substrate turns soot into ash and the DPF is now regenerated and ready for use.  

Products

Remarks

DOC, DPF & SCR Catalysts

ü Comply with Euro 4, 5 & 6 emission standard

ü Tested & certified by major OEM in China 

Please contact us for more product details.