Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
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3/00
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
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F01N3/02
for cooling, or for removing solid constituents of, exhaust
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F01N3/022
characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
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F01N3/0222
the structure being monolithic, e.g. honeycombs
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