Gas separation – With nonliquid cleaning means for separating media – With sequential cleaning of plural units
Patent
1983-08-03
1985-05-28
Lacey, David L.
Gas separation
With nonliquid cleaning means for separating media
With sequential cleaning of plural units
55466, 55523, 55DIG10, 55DIG30, 60303, 60311, 422178, 422180, B01D 3920, F01N 302, F01N 316
Patent
active
045198209
ABSTRACT:
Filter apparatus having a honeycomb structure and a heater for purifying exhaust gases consists of cells or passages defined by porous partition walls. Alternate passages are provided respectively with upstream plugs and downstream plugs. Particulates in exhaust gases are trapped in the honeycomb structure and ignited by the heater. The upstream plugs define spaces upstream thereof in which particulates are trapped in addition to those trapped in the passages having downstream plugs. The heat of burning of the particulates trapped in the spaces facilitates the burning of the particulates trapped in the passages having downstream plugs. Therefore, the exhaust gas particulates trapped and collected in the downstream portion of the structure can also be easily burned to regenerate the structure over its entire length.
REFERENCES:
patent: 4276071 (1981-06-01), Outland
patent: 4373330 (1983-02-01), Stark
patent: 4416676 (1983-11-01), Montierth
patent: 4420316 (1983-12-01), Frost et al.
patent: 4427418 (1984-01-01), Kogiso et al.
Fukutani Masanori
Ito Kazuyuki
Ito Keiji
Matsui Kazuma
Miwa Naoto
Lacey David L.
Nippondenso Co. Ltd.
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