Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1995-07-26
1997-12-30
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Methods
60286, 60296, 60297, 60303, 55466, 55DIG30, 422169, F01N 302, F01N 328
Patent
active
057017352
ABSTRACT:
A method for regenerating a particulate collection filter by the use of a regenerative gas according to the present invention comprises a step for causing particulate combustion in only the downstream part of said filter in the flow of the regenerative gas by the use of the regenerative gas, and a step for causing the particulate combustion in the downstream part of the filter to propagate toward the upstream part of the filter in the flow of the regenerative gas. Therefore, the direction of propagation of the combustion is opposite to the direction of the flow of the regenerative gas so that only part of the particulate combustion heat in each part of the filter is transferred upstream. Accordingly, each part of the filter will not become too hot.
REFERENCES:
patent: 2898202 (1959-08-01), Houdry
patent: 4386497 (1983-06-01), Takagi et al.
Patent Abstracts Of Japan, vol. 8 No. 186 (M-320), Aug. 25 1984, JP-A-59 077022, "Exhaust Gas Purifier For Diesel Engine", Tsuji Katsuyuki et al.
Patent Abstracts Of Japan, vol. 8 No. 18 (M-353), Jan. 25, 1985, JP-A-59 165815, "Regenerator For Diesel Particulate Filter", Mitsuhiro Kawagoe.
Patent Abstracts Of Japan, vol. 16 No. 226 (M-1254), May 26, 1992, JP-A-04-043809, "Regenerating Method For Diesel Particulate Filter", Igarashi Tatsuoki.
Hart Douglas
Toyota Jidosha & Kabushiki Kaisha
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