| 摘要 |
<p>PURPOSE:To prevent the heat damage of a filter by evading the generation of an excessive temperature increase on one part of the filter, in the case of a regeneration combustion of the filter for collecting particulates in the exhaust gas of a diesel engine. CONSTITUTION:In order to uniform the temperature distribution when exhaust minute particle (particulates) piled up on a filter 3 is burned and removed, the plug (blockade) pattern of cell on a central part 7 is changed and 9 each or more of open cell group 16 opening toward an upper stream side are collected. In this case, the minute particle is piled up by the inertia of an exhaust gas and the like, even if the central open cell does not abut on a peripheral blockade cell and an abnormal high temperature is produced in a regeneration combustion. Therefore, the blockade cell 17 is made by blockading the upper stream end of the central opening cell.</p> |
