| 摘要 |
PROBLEM TO BE SOLVED: To efficiently arrange two exhaust gas post-treatment devices in a limited space around an engine.SOLUTION: A construction machine includes an attachment base 16 positioned above a hydraulic pump 9 and attached to a pump attachment part 8B of an engine 8. On the attachment base 16, a first exhaust gas post-treatment device 21 and a second exhaust gas post-treatment device 26 are arranged to be overlapped with each other in the vertical direction in the state of being connected with each other through a connection pipe 24. The attachment base 16, the first and the second exhaust gas post-treatment devices 21 and 26, and the connection pipe 24 are attached to the pump attachment part 8B of the engine 8 as one post-treatment unit 15. Accordingly, the two exhaust gas post-treatment devices 21 and 26 can be arranged in a small installation space by arranging the first and the second exhaust gas post-treatment devices 21 and 26 to be overlapped with each other in the vertical direction. |
