| 摘要 |
PROBLEM TO BE SOLVED: To provide a construction machine in which noise is reduced, and air stream for cooling an engine is ensured without decreasing a strength of an upper wall of an engine room.SOLUTION: A construction machine comprising a power source and an engine room (30), in which the engine room (30) includes an intake side wall (32) having an intake port (32a), an inner exhaust side wall (34) having an inner exhaust port (34a), an outer exhaust side wall (36) having an outer exhaust port (36a), an upper wall (38), an air intake duct (50) forming an intake air flow passage, an inner exhaust duct (61) forming an inner exhaust flow passage, an outer exhaust duct (63) forming an outer exhaust flow passage, a sound absorber (70) for the air intake duct (50) provided in said air intake duct, and a sound absorber (80) for each exhaust duct (61, 63) provided in said exhaust duct. At least a part of each exhaust port (34a, 36a) is disposed at a position higher than that of the intake port (32a). |
