| 摘要 |
A gasoline engine exhaust system for catalytically converting carbon monoxide, nitrous oxide, and hydrocarbon pollutants into non-pollutant species and for trapping particulate matter, including a gasoline engine exhaust, and a housing and an inlet port formed in the housing and fluidically connected to the gasoline engine exhaust. The system also includes an outlet port formed in the housing and fluidically connected to the atmosphere, a plurality of inlet channels in the housing, a plurality of outlet channels arranged adjacent to the inlet channels, a plurality of substantially fibrous non-woven porous walls separating the inlet channels from the outlet channels, a first catalyst material disposed on the porous walls, and a second catalyst material disposed on the porous walls.
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