Patent ID: 7497889

Claim:
An exhaust emission control device comprising: a plurality of capturing cells each including a cylindrical inner electrode constituted by an electrically conductive filter capable of capturing particulates, a cylindrical dielectric surrounding said inner electrode and a cylindrical outer electrode constituted by an electrically conductive filter capable of capturing particulates and surrounding said dielectric, a cylindrical housing within which said capturing cells are arranged in parallel with each other, exhaust divergence means on one end of the housing and in communication with a gap between an inner surface of the dielectric and an outer surface of the inner electrode in each of the capturing cells and a gap between an inner surface of the outer electrode and an outer surface of the dielectric in each of the capturing cells and exhaust convergence means on the other end of the housing and in communication with an interior of the inner electrode in each of the capturing cells, voltage necessary for generation of electric discharge being applicable across the inner and outer electrodes.