FIELD: emission processing.
SUBSTANCE: catalytic filters for capturing solid particles contain three-way neutralizer (hereinafter – TWC) catalytic material that penetrates walls of the filter for capturing solid particles, so that the catalytic filter for capturing solid particles has coated porosity that is less than uncoated porosity of the filter for capturing solid particles. Coated porosity is linearly proportional to the loading of a “washcoat” type layer of TWC catalytic material. The covered back pressure does not damage the performance of the engine.
EFFECT: such catalytic filters for capturing solid particles can be used in a system for processing emissions downstream from a gasoline engine of the direct fuel injection for processing exhaust stream containing hydrocarbons, carbon monoxide, nitrogen oxides and solid particles.
28 cl, 4 tbl, 16 dwg
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