CPC Main Group
F01N 3/00 Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust (electric control F01N9/00; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N11/00)
5 direct subcodes
Child Classifications
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- F01N 3/01 by means of electric or electrostatic separators
- F01N 3/02 for cooling, or for removing solid constituents of, exhaust (by means of electric or electrostatic separators F01N3/01 )
- F01N 3/06 for extinguishing sparks
- F01N 3/08 for rendering innocuous (using electric or electrostatic separators F01N3/01; chemical aspects B01D53/92)