Exhaust emission control device of internal combustion engine

Details Exhaust emission control device of internal combustion engine Exhaust emission control device of internal combustion engine

2006-10-17

2006-10-17

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Having retainer or flow director for exhaust gas condensate

C060S289000, C060S297000, C060S300000, C060S320000

Reexamination Certificate

active

07121087

ABSTRACT:
In an exhaust path, a HC trapping material which traps HC contained in exhaust gas temporarily, a H2O trap which traps H2O contained in exhaust gas and a CO oxidation catalyst are arranged in this order from the upstream side, wherein the H2O trap is disposed just upstream of and close to the CO oxidation catalyst. H2O and HC which are components disturbing the activity of the CO oxidation catalyst can be removed efficiently and the adsorption heat and condensation heat of H2O can be efficiently utilized to raise the temperature of the CO oxidation catalyst so that early activation of the CO oxidation catalyst is accomplished just after an engine starts.

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