Engine exhaust emission control system

Details Engine exhaust emission control system Engine exhaust emission control system

1994-11-18

1996-03-19

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60297, 60302, F01N 328

Patent

active

054995019

ABSTRACT:
In an engine exhaust emission control system, a ternary catalyst and a hydrocarbon adsorber are provided in an exhaust passageway from an engine. The ternary catalyst includes first passages through which an exhaust gas discharged from the engine flows, and second passages through which the exhaust gas which has flowed through the first passages and the hydrocarbon adsorber flows. The first and second passages are laminated to each other to enable heat exchange therebetween. The hydrocarbon adsorber is capable of being cooled by a cooling medium. Thus, it is possible to reliably prevent hydrocarbons in the exhaust gas from being released to the atmosphere during the cold start of the engine.

REFERENCES:
patent: 3295919 (1967-01-01), Henderson
patent: 3929420 (1975-12-01), Wood
patent: 5125231 (1992-06-01), Patil et al.
patent: 5158753 (1992-10-01), Take et al.
patent: 5379586 (1995-01-01), Honji et al.

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