| 摘要 |
Disclosed herein is an exhaust gas control device for internal combustion engines. The exhaust gas control device has a main exhaust pipe ( 3 ) communicating with an exhaust manifold ( 2 ) used for guiding exhaust gas discharged from a combustion chamber ( 1 ) of an engine, a catalytic converter ( 6 ) arranged on a predetermined position of the main exhaust pipe ( 3 ) for purifying unburnt fuel discharged with the exhaust has and having a plurality of sequentially arranged catalyst units ( 6 a, 6 b, 6 c), and an unburnt fuel collection tank ( 8 ) provided with a plurality of cooling fins ( 9 ) and connected to the catalytic converter ( 6 ) through a branch pipe ( 7 ). The collection tank ( 8 ) collects purified unburnt fuel after the unburnt fuel is treated by the catalytic converter ( 6 ) so as to remove noxious materials therefrom. |
