Method for regenerating a particulate collection filter

摘要

The regeneration of an internal combustion (IC) engine exhaust particulate filter comprises the use of a particle regeneration system which is operated on a cyclic basis once the particle load level in the filter (42) exceeds a predetermined threshold value. This is measured by periodically establishing the pressure difference between the intake and outlet of the particle filter (42) and the flow of exhaust gases through the filter, using sensors (44, 46) on the intake and outlet sides. The sensors are linked to an electronic data processing unit (20) controlling the operation of the engine e.g. by the amount of fuel injected, and the filter is regenerated from time to time by high temperature particle combustion to reduce its impact on the engine's performance.