Exhaust emission control device for a diesel engine

Details Exhaust emission control device for a diesel engine Exhaust emission control device for a diesel engine

1988-12-07

1990-06-19

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

55 75, 55316, 55389, 55DIG30, 60311, 422169, 422174, 4232137, 4232155, 4232451, F01N 302

Patent

active

049341421

ABSTRACT:
An exhaust emission gas control device having a first filter trapping particulates contained in an exhaust gas, and a second filter removing offensive odor components in the exhaust gas. The first filter is a honeycomb type having a cordierite substrate on which .tau.-alumina is coated. The second filter is provided downstream of the first filter, and is formed by an ion-exchange of copper on a synthetic zeolite rich in silica to form copper ions thereon.

REFERENCES:
patent: 3346328 (1967-10-01), Sergeys
patent: 4054518 (1977-10-01), Miller
patent: 4297328 (1981-10-01), Ritscher
patent: 4345431 (1982-08-01), Suzuki
patent: 4455393 (1984-06-01), Domesle et al.
patent: 4661329 (1987-04-01), Suzuki
patent: 4795482 (1989-01-01), Gioffre

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