A soot filter for the exhaust gas of a diesel engine comprises a filter body and {TAIL ~ a glow plug} for thermally regenerating {HEAD ~ the filter body} 
A soot filter for the exhaust gas of a diesel engine comprises a filter body and { TAIL ~ a glow plug } for thermally regenerating { HEAD ~ the filter body }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD