| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust gas secondary combustion device having more excellent fuel economy.SOLUTION: An exhaust gas secondary combustion device includes a combustion tube 10 which has an exhaust gas supply port 10a and an exhaust gas discharge port 10b. The combustion tube 10 includes a heat medium 20 and heating means 30 for heating the heat medium 20 therein. The heat medium 20 uses heat quantity obtained by being heated by the heating means 30 so as to decompose and eliminate a toxic substance in exhaust gas. By using the heat medium 20, steady decomposition of the toxic substance can be continued even if the heating means 30 is not normally operated when only the heat medium 20 is kept at a prescribed temperature or more in an operation of the exhaust gas secondary combustion device 100.SELECTED DRAWING: Figure 1 |
