EXHAUST FILTER ELEMENT AND EXHAUST GAS-TREATING APPARATUS

摘要

17 An exhaust gas filter element has a corrugated honeycomb structure and is made of porous fibrous ceramics. The cells are alternately plugged at the ends. The material at an inflow and/or outer circumference region has a higher dielectric constant than at the inside region. The filter element can be regenerated by irradiating it with microwaves after it has been partially blocked by particulates filtered out of exhaust gas.