Exhaust gas cleaning device for internal combustion engine

Details Exhaust gas cleaning device for internal combustion engine Exhaust gas cleaning device for internal combustion engine

1984-06-13

1985-08-20

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

55282, 55283, 55466, 55DIG10, 55DIG30, 60311, 219375, 219553, F01N 302

Patent

active

045355894

ABSTRACT:
An exhaust gas cleaning device provided with a filter member for collecting particulates in the exhaust gases, and an electric heater for burning and eliminating the particulates collected by the filter member, is disclosed. The filter member is formed of electrically insulating ceramic and is installed in the exhaust gas passage. The heater is formed of ceramic provided with a large number of open passages and having electric conductivity or electrically insulating property. The heater is closely adhered to the exhaust gas inlet end surface of the filter member. In the case that the electrically conductive ceramic is used, the ceramic itself acts as a heating element which heats and ignites the collected particulates. In the case that the electrically insulating ceramic is used, a metallic film acting as a heating element is formed on the walls of the ceramic defining the open passages by printing, vacuum evaporating or other method.

REFERENCES:
patent: 1789812 (1931-01-01), Frazer
patent: 2731713 (1956-01-01), Schaeffer
patent: 3163841 (1964-12-01), Willett
patent: 3691346 (1972-09-01), Dyre
patent: 4211075 (1980-07-01), Ludecke

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