METHOD AND SYSTEM FOR REGENERATING DUST COLLECTING FILTER

A particulate filter regeneration system according to the present invention, which regenerates a particulate filter (4) provided in an exhaust line (3) of an engine (2) equipped with a turbocharger (1) by burning matter trapped on the particulate filter (4) by raising the temperature of exhaust gas at times that the particulate filter (4) requires regeneration, comprises an electric motor (5) functioning as an intake quantity regeneration means capable of increasing the flow rate of compressed air without depending on the flow rate of exhaust gas flowing across a turbine (1t) of the turbocharger (1), a bypass line (7) connecting an engine intake line (6e) upstream of the engine (2) to a section of the exhaust line (3) upstream of the particulate filter (4), a flow rate regulation valve (8) regulating the flow rate in the bypass line (7), and a control means (9) controlling the electric motor (5) and the flow rate regulation means (8).