Patent ID: 7650748

Claim:
A method for regenerating a particle filter arranged in the exhaust line of an internal-combustion engine, notably of diesel type, a method wherein the clogging state of the filter is evaluated, this state is compared with a threshold value, then, if this threshold value is exceeded, a fluid and a fuel are mixed together, this mixture is fed through a line in a portion of which a catalytic element is arranged and subjected to catalytic combustion to generate the hot gases required for regeneration of the filter and regeneration of the filter is carried out by means of hot gases flowing through said filter and whose temperature is sufficiently high to provide combustion of the particles retained in the filter, wherein exhaust gases are circulated around an outside of the portion of the line in which the catalytic element is arranged to raise a temperature of the catalytic element and, prior to mixing the fluid and the fuel, the temperature of the fluid is raised up to the catalytic combustion light-off temperature.