Device for purifying the exhaust gas of a diesel engine

Details Device for purifying the exhaust gas of a diesel engine Device for purifying the exhaust gas of a diesel engine

1996-05-15

1998-01-27

Wolfe, Willis R.

Power plants

Internal combustion engine with treatment or handling of...

Material from exhaust structure fed to engine intake

60286, 60297, 422183, F02M 2507, F01N 336

Patent

active

057111499

ABSTRACT:
A device for purifying the exhaust gas of a diesel engine comprises a filter for collecting particulates which is arranged in the exhaust system of the engine, an oxidation catalyst arranged in the exhaust system upstream of the filter, diesel fuel supply unit for supplying diesel fuel to the oxidation catalyst when the filter must be regenerated, and a heater. The heater heats the diesel fuel supplied from the diesel fuel supply unit to the oxidation catalyst only in the initial step of supplying the diesel fuel when the temperature of the oxidation catalyst is lower than a predetermined temperature and the filter must be regenerated.

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