DPF system
This is a post-treatment system used for purifying exhaust
gases. DPFs use a filter to capture particulate matter (PM),
soot, and ash. Exhaust gases such as carbon dioxide and nitrogen
oxide are passed through this filter.
The DPF system consists of a filter element, a catalyst called a
"diesel oxidation catalyst" (DOC), an exhaust gas
temperature sensor, and a differential pressure sensor used to
detect the amount of PM collected by the filter.
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