Method for cyclic rejuvenation of an exhaust gas filter and appa

Details Method for cyclic rejuvenation of an exhaust gas filter and appa Method for cyclic rejuvenation of an exhaust gas filter and appa

1980-03-03

1983-02-08

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

55DIG30, 60297, 60303, 60311, 422169, 422178, 422182, 422183, F01N 318, F01N 336

Patent

active

043721117

ABSTRACT:
A system for filtering combustible particulate matter from an exhaust gas stream, and for periodically rejuvenating the filter by thermally incinerating retained particles prior to their reaching the main filter. At least a part of the exhaust gas stream which enters the filter bed is periodically heated in a pretreating chamber. The latter comprises a catalyst coated oxidizing bed into which fuel, and heated air are metered to initiate combustion. The products of said combustion are thereafter combined with the exhaust gas to bring it to a sufficient temperature to incinerate the carried particles.

REFERENCES:
patent: 2898202 (1959-08-01), Houdry
patent: 2946651 (1960-07-01), Houdry
patent: 3273971 (1966-09-01), Baddorf
patent: 3306035 (1967-02-01), Morrell
patent: 3503716 (1970-03-01), Berger
patent: 3657892 (1972-04-01), Perga
patent: 4054418 (1977-10-01), Miller
patent: 4270936 (1981-06-01), Mann

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