Exhaust particle removing system for an engine

Details Exhaust particle removing system for an engine Exhaust particle removing system for an engine

1988-09-02

1989-12-19

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60302, 60311, F01N 302

Patent

active

048874272

ABSTRACT:
A first filter is disposed in an engine exhaust passage. A second filter is disposed in the engine exhaust passage at a location downstream of the first filter. Thus, the first and second filters are connected in series with one another. The first and second filters are designed so that an amount of exhaust particles trapped by the first filter is greater than an amount of exhaust particles trapped by the second filter. A pressure across the series combination of the filters may be detected. The filters may be rejuvenated when the detected pressure across the series combination of the filters reaches a reference pressure.

REFERENCES:
patent: 3999967 (1976-12-01), Aoi
patent: 4450682 (1984-05-01), Sato
patent: 4451441 (1984-05-01), Ernest
patent: 4462208 (1984-07-01), Hicks
patent: 4485621 (1984-12-01), Wong
patent: 4535588 (1985-08-01), Sato
patent: 4663934 (1987-05-01), Sickels

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