| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust emission purifier, which can perform the silencing of and emission control of exhaust gas from an engine of a diesel car at high efficiency and is small, high in performance and long in life. SOLUTION: In this exhaust emission purifier an annular high temperature catalytic chamber 22 and first/second annular trap chambers 24, 26 are arranged between expansion chambers 18, 20 in a muffler housing 16, a heat transfer pipe 36 is arranged in the central part of these annular chambers, inside the annular catalytic chamber 22 is charged with a heat accumulator unit 46 consisting of NOx catalyst, inside the annular trap chambers 24, 26 is charged with filter members 52, 54, a resonance chamber 38 is formed in the heat transfer pipe 36. |
