SMOKE PURIFYING SYSTEM OF DIESEL VEHICLE AND METHOD FOR PREVENTING ABNORMAL COMBUSTION BY USING THE SAME

摘要

PURPOSE: A smoke purifying system and a method for preventing abnormal combustion by using the same are provided to prevent sudden abnormal combustion by controlling flow rate of exhaust gas through spraying compressed air. CONSTITUTION: A smoke purifying system includes a control section(1), which determines an abnormal combustion condition and controls an amount of secondary air, an air compressor(3) for compressing air, an auxiliary tank(5) for storing compressed air, a smoke filtering section(7) including a collecting filter(7a), and a sensor section(9) for measuring temperature and pressure around the collecting filter(7a). The air compressor(3) is connected to an engine. The auxiliary tank(5) stores air supplied from the air compressor(3). An adjust valve(5a) is installed between the auxiliary tank(5) and the smoke filtering section(7).