DEVICE FOR REMOVING PARTICULATE MATERIALS FROM EXHAUST GAS OF DIESEL VEHICLES

摘要

A device for removing particulate materials from the exhaust of diesel vehicles is disclosed. The device prevents the exhaust gas from flowing to filters (4, 4') during a filter regeneration, thus preventing the incomplete removal of filtered harmful particulate materials and easily reheating the filters (4, 4') and preventing the overheating of the filters (4, 4'). The device has a direct heating mechanism (5, 5') in place of a conventional indirect heating mechanism, thus being free from the need for an additional battery or an increase of the alternator's capacity. The device also prevents the harmful particulate materials from accumulating on the central portion of each filter (4, 4') thus allowing all portions of each filter (4, 4') to be uniformly regenerated at a low temperature.