Device for collecting particulates in exhaust gases
AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho
InventorsTakeshi Kogiso, Hiroshi Ohkawa
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Abstract
A device for collecting and burning particulates in exhaust gases from an internal combustion engine comprises: a casing having an inlet port and a discharge port for exhaust gases; at least one trapper of porous and heat resistant material disposed within the casing; and a plurality of electric heaters separately disposed a predetermined distance apart from each other on or adjacent to a surface of the trapper which confronts the inlet port and connected to a power source, each of said electric heaters having a predetermined heating area. This device effectively collects and burns particulates in exhaust gases with reduced amount of electric power.
Claims19
A device for collecting particulates in exhaust gases from an internal combustion engine comprising:
- a casing having an inlet port and a discharge port for introducing and discharging said exhaust gases;
- at least one trapper of porous and heat resistant material disposed within said casing between said inlet and discharge ports, for collecting particulates in said exhaust gases;
- and
- a plurality of electric resistance heaters to facilitate ignition and burning of particulates collected in said at least one trapper, the heaters being separately disposed a predetermined distance apart from each other substantially in contact with a surface of said at least one trapper which confronts said inlet port and connected to a power source such that they are successively energized one by one, each of said plurality of electric resistance heaters having a predetermined heating area on said surface of said at least one trapper.
Dependencies are inferred from the claim text.