| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an exhaust emission control device for internal combustion engine excellent in exhaust emission control performance and capable of being suitably arranged in a limited arrangement space. <P>SOLUTION: The exhaust emission control device 1 is provided with both of DPF13 and urea NOx removal catalyst 23 to materialize collection of particulate matter in exhaust gas and reduction of NOx simultaneously. The DPF 13 and the urea NOx removal catalyst 23 are arranged in parallel (flow of exhaust gas is in series) and are communicated to a communication chamber 30 to form a whole exhaust emission control device 1 in a U-shape. Consequently, longitudinal length can be shortened and the device 1 is made compact as compared with conventional device having those on straight line. Consequently, an arrangement space can be small, the exhaust emission control device 1 can be efficiently arranged in the limited arrangement space and can be suitably used for a construction machine or the like of which vehicle length is not long. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
