Function Of Diesel Particulate Filter (Dpf) - wsm V3800-CR-TE4 Workshop Manual

V3800-CR-TE4,V3800-CR-TIE4,V6108-CR-TIE4, WSM
1. FUNCTION OF DIESEL PARTICULATE FILTER
(DPF)
The Diesel Particulate Filter (hereinafter referred to as the
"DPF") is a filter to capture fine particles (soot and ash) contained in
the exhaust gas of a diesel engine.
The ash content is mainly metallic additives contained in burnt
lubricating oil.
The filter has a honeycomb structure with adjacent vents
alternately closed.
In addition, by alternately closing the inlet side and the outlet
side of the exhaust gas, the thin ceramics wall is used as a filter.
As shown in the figure, fine particles in the exhaust gas are
captured when they pass through this thin wall, and the exhaust gas
is discharged as clean gas.
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ENGINE