| 摘要 |
PURPOSE: An exhaust gas filtering apparatus is provided to bypass and discharge exhaust gas even if pressure inside the same is excessively increased by the increase of collected particulate materials, thereby preventing damage to the same. CONSTITUTION: An exhaust gas filtering apparatus includes an outer case (120), a filtering unit, and a pressure retaining filter (130). The outer case is connected to an exhaust pipe. The filtering unit is installed inside the outer case through a first flange (150) and a second flange (155). The flanges are coupled to the outer case. Exhaust gas flows in a first exhaust gas path (147) inside the filtering unit. The filtering unit is separated from the outer case so that a second exhaust gas path (148) is formed between the same and the outer case. The pressure retaining filter is placed in parallel with the filtering unit, and smoothly discharges the exhaust gas outside in order to prevent damage due to the pressure of the exhaust gas when particulate materials are deposited in the filtering unit. |
