Gas separation – With nonliquid cleaning means for separating media – With heating or cooling means
Patent
1997-11-12
2000-07-18
Simmons, David A.
Gas separation
With nonliquid cleaning means for separating media
With heating or cooling means
55283, 55287, 55DIG10, 55DIG30, 96397, 96400, 96401, 60303, 60311, B01D 2966, B01D 2952
Patent
active
060901721
ABSTRACT:
The present invention is a filtering unit providing after-treatment of the gases emited in the exhaust of Diesel engines, comprising a filtering set which includes at least one filtering element (11, 12, 13); at least one resistive element (3) which heats a zone (121, 122, 123) of one of the at least one filtering element; at least one detection device which determines fouling of the filtering set (1); a control (5), responsive to the at least one detection device, which controls independently each of the resistive elements, according to the fouling of the filtering set and electrical power available to the at least one resistive element. The resistive elements (3) can be each wound around a zone of a filtering element. The invention further relates to the associated process.
REFERENCES:
patent: 5024054 (1991-06-01), Barris et al.
patent: 5171337 (1992-12-01), Pollock
patent: 5454845 (1995-10-01), Anahara et al.
patent: 5457945 (1995-10-01), Adiletta
patent: 5551971 (1996-09-01), Chadderton et al.
Dementhon Jean-Baptiste
Martin Brigitte
Pajot Olivier
Hopkins Robert A.
Institut Francias Du Petrole
Simmons David A.
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