Patent attributes
The invention concerns a device comprising at least an electrostatic filter (20) with corona effect comprising an emitting structure (29, 32, 33) and a collector structure (24). The invention is characterized in that the collector structure (24) comprises a plurality of cavities trapping the particles contained in the gas medium, such as gases of an internal combustion engine. The emitting structure (29, 32, 33) comprises a plurality of serrated plates such as ratchets (32) designed to be connected to a high voltage circuit. Preferably, the collector structure (24) comprises a separator formed of a wire mesh. Advantageously, said device is associated with an oxidation catalytic converter and/or a continuously regenerating mechanical filter and/or suction means.
