Gas pollution destruction apparatus and method using self-resonant corona discharge

摘要

The contaminant destruction system connects the capacitive corona discharge chamber 2 to the inductive element 16 in a self-resonant circuit. An intermittent activation pulse is supplied from the power supply 18 to induce a corona discharge 54 in the chamber and the resonant circuit is capable of providing additional corona discharges 36,38, 36 ', 38 ' In response to the activation pulse. One or more discharge chambers may be provided in the resonant circuit, each discharge chamber comprising a dielectric enclosure 4 having a distribution electrode 6 outside the enclosure and an extension electrode 8 inside the enclosure. The inner electrode may extend along the chamber side, or along the inner chamber wall for good support and heat dissipation. The activation pulse frequency can be controlled in a number of ways, such as at the end of a corona discharge, an increase in the concentration of contaminants, or in response to acceleration of the engine where the exhaust gas is treated, or the pulse is applied at a fixed rate.