Patent ID: 8747761
Filing Date: 2014-06-10
Classification: B01D,B01F,F01N

Abstract:
1. An exhaust gas purification device includes a post-processing device for reducing and purifying nitrogenous compounds contained in exhaust gas discharged from an internal combustion engine, using a reduction agent, comprising: a first exhaust pipe section for leading the exhaust gas discharged from the internal combustion engine; a second exhaust pipe section having in a side section on the upstream side thereof an opening section for introducing the exhaust gas from the first exhaust pipe section, and being connected a side section thereof being to the first exhaust pipe section so that the flow of the exhaust gas therein becomes a swirl flow, and having provided on the downstream side thereof the post-processing device; and a reduction agent supply means provided at the upstream end of the second exhaust pipe section, wherein the opening section is formed so as to include at least a first tilted side extending in the direction tilted relative to the axis of the second exhaust pipe section.