Development of Dual Flow System of Diesel Particulate Filter Made of Porous Metal

In order to reduce the amount of particulate matter (PM) in the exhaust gas of diesel engines, a dual flow type diesel particulate filter (DPF) system made of porous metal filters has been developed. In this paper, the development and the evaluation results will be discussed. The test results on the engine bench and the vehicle have revealed good performance of the DPF system and have practical application for urban buses.