Abstract
In order to adapt to the future stringent diesel vehicle emission regulation, it is common to use diesel particulate filter (DPF). The DPF is caned in the case with not only the support mat on the side, but also wire mesh ring on each end sides. Although it became possible to hold DPF according to this structure, part mark has increased and a manufacturing process has complicated. These issues becomes a cause of rising parts cost. We have been trying to develop active new shaped converter from the viewpoint of decreasing the part mark, and it has turned out to be effective canning method which is engaged the shapes of the DPF and cases without using wire mesh rings. In this paper, we report the basis of the shape of BULGE converter and the analysis of degradation behavior of the mat.
