Engine exhaust particulate ignitor construction

Details Engine exhaust particulate ignitor construction Engine exhaust particulate ignitor construction

1985-03-20

1987-09-22

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Including means facilitating part replacement or repair...

422174, 422178, 422169, 55DIG10, 55DIG30, 60303, B01D 5000, F01N 310, F01N 338, F01N 718

Patent

active

046954295

ABSTRACT:
An exhaust gas purification device for installation in the exhaust line of an internal combustion engine of a vehicle, for igniting and vaporizing particulate matter in the exhaust stream. The device includes a canister having a tubular casing with an open end, and an end fitting having a wide mouth which fits against the open end, and thereby closing off the same. The fitting has an inlet port for connection to the exhaust pipe of the engine. Disposed within the casing is a porous filter element which traps small amounts of solid matter such as soot, and keeps it from entering the atmosphere through the vehicle's tailpipe. Igniting devices in the canister adjacent the inlet side of the filter, are located along the exhaust stream flowpath. Upon contact with the igniting devices, at least some of the particulate matter in the stream is vaporized, and passed, as a gas, through the filter. The arrangement prevents clogging of the minute openings of the filter with relatively large particles, which would otherwise block the exhaust flow and cause malfunction of the engine. The device is especially well suited for use in diesel engines, to vaporize carbon (soot) in the exhaust stream.

REFERENCES:
patent: 3958099 (1976-05-01), Mattis
patent: 3989029 (1976-11-01), Friedl et al.
patent: 4007353 (1977-02-01), Horwitt
patent: 4322387 (1982-03-01), Virk et al.
patent: 4534327 (1985-08-01), Latsch et al.
patent: 4544388 (1985-10-01), Rao et al.

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