Basic working principle :If the DPF is coated with noble metal (such as Pt, Pd and Rh), black smoke with carbon particulate from diesel engine ,pass through a special tube and enter the filter. The carbon smoke particulate is absorbed to the filter made of metallic fibre felt, when passing the inner dense set and bag-style filter. when particulate absorption reaches some degree, the tail burner would be ignited to burning automatically. In this case, the particulate absorbed is burned out and turned into nontoxic co 2 then discharge. The full device is designed as double room structure, and filtration and recycle are going in different areas, making them non-disturbed. The system can work automatically whatever working condition the engine in. specially made honeycomb ,ceramic particulate filter, acts as capturing device to the particulate to some extent.
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