PARTICLE FILTER SYSTEM FOR ENGINES AND METHOD FOR REDUCING PRESSURE LOSS IN SAID FILTER

摘要

The invention relates to a particle filter system for engines and a method for reducing pressure loss in said filter. The system comprises a filter in an exhaust line of the engine, a water injector at the inlet of the filter, a conduit between a water supply source and the injector, an injection pump, pressure sensors at the inlet and the outlet of the filter for determining a pressure loss in the filter, and a control unit for controlling the actuation of the pump. The method comprises detecting a pressure loss between the inlet and the outlet of the filter, injecting pressurized water into the inlet of the filter when the pressure loss reaches a permitted maximum value and controlling the operating conditions required for filter regeneration in order to re-start the soot accumulation process in the filter.