Diesel vehicles and black smoke particulate removal device comprises a metal filter and the metal filter

摘要

Disclosed is a simple and inexpensive structure to be able to increase the capture efficiency of removing black smoke particulates. A metal filter is disclosed, a number of through holes 2 are bored with Yumen protrusions 1 in edge and corrugated roll winding a metal plate repeating undulating sine wave multilayer spiral consists shaped for the metal porous body 3, the interlayer gap 4 of the metal porous body 3 through the diesel exhaust gas, it is a filter for trapping and removing black smoke particulates contained in the diesel exhaust gas. Through-holes 2 are provided in the ridges M and valleys V constituting the rows of undulating. However, substantially all or a majority of the organic surface projections 1, down the mountain portion M, are arranged in a row side recess 5 corresponding to the upper valley V. [Selection Figure] Figure 1