| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dispersion plate with a simple shape, high productivity, durability, and a low pressure loss, wherein the dispersion plate mixes a reductant and an exhaust gas well and supplies a substantially uniform mixed flow to a catalyst, when a reductant supply device is arranged at a straight run of pipe on an exhaust passage and the reductant is injected from an oblique direction. <P>SOLUTION: The dispersion plate 6a is provided on the downstream of the reductant supply device 5 and on the upstream side of the catalyst 3. An inlet 61 of the dispersion plate where the reductant and exhaust flow in is formed in a substantially line on a cross section in an axial direction of the exhaust passage, and an angle B of the line relative to an injection axial direction of the reductant supply device is substantially right angle. <P>COPYRIGHT: (C)2012,JPO&INPIT |
