Exhaust line for e.g. diesel engine, has particle filter unit comprising particle filters in which one filter is connected in parallel to another filter via valve that controls circulation or interruption of gas in filter

摘要

The line has a particle filter unit (3) which comprises particle filters (4, 5). The filter (5) is connected in parallel to the filter (4), through a valve (6). The valve controls the circulation or interruption of the gas in the filter (5) as function of engine load. The valve is closed, when an engine operated with low load, so that the gas circulates only in the filter (4).