Apparatus and method for treating an exhaust gas from a diesel e

Details Apparatus and method for treating an exhaust gas from a diesel e Apparatus and method for treating an exhaust gas from a diesel e

1988-09-23

1989-10-24

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

55272, 55466, 55DIG30, 60295, 60311, F01N 302

Patent

active

048753351

ABSTRACT:
In an apparatus for treating an exhaust gas from a diesel engine, including a filter unit in an exhaust gas passage for the diesel engine, the filter unit having a honeycomb structure wherein a plurality of cells are divided by cell walls having a filtration function and extend in the same direction as one another, predetermined cells being closed at one end, and the remaining cells being closed at the other end; the improvement comprises: back washing gas flow generating means for generating a gas flow at appropriate intervals so as to pass through the cell walls in the direction opposite to the flow of the exhaust gas flow, and a recollecting unit for particulates, which is provided in the exhaust gas passage at a position upstream to the filter unit.

REFERENCES:
patent: 4406119 (1983-09-01), Kamiya
patent: 4433986 (1984-02-01), Borst
patent: 4462812 (1984-07-01), Bly

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