| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an SCR muffler capable of improving durability of a reducing agent supply nozzle, while improving purification efficiency of nitrogen oxides (NOx) by an SCR catalyst, by restraining or relieving vehicle vibration received by the reducing agent supply nozzle and vibration by influence of exhaust gas. <P>SOLUTION: This SCR muffler has the SCR catalyst 1 for selectively reducing and purifying the nitrogen oxides (NOx) included in the exhaust gas, an exhaust pipe 2 for making the exhaust gas flow in the SCR catalyst 1, and the reducing agent supply nozzle 3 for supplying a reducing agent or a reducing agent precursor to the exhaust gas. A plate 4 having an air vent 5 is inserted into the reducing agent supply nozzle 3, and the plate 4 is held by the exhaust pipe 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
