| 摘要 |
To provide a construction machine in which the temperature of a battery and aqueous urea within an aqueous urea tank can be prevented from rising and high stability can be secured in the vehicle body. A small turning type hydraulic excavator (1) including: a counterweight (6) disposed at the rear of a turning upperstructure (3) provided with a front work machine (4) in the front thereof; an engine (5a) disposed within an engine room (5) in front of the counterweight (6); a heat exchanger (15) exchanging heat with the engine (5a); a fan (16) introducing outside air from an intake port (5b) formed in the exterior of the engine room (5) into the engine room (5) to cool the heat exchanger (15); a tail pipe (20) disposed on the exterior of the engine room (5); an aqueous urea tank (12) storing aqueous urea that purifies the exhaust gas discharged from the engine (5a) ; and batteries (13a, 13b) supplying electric power to the engine (5a), wherein: both the aqueous urea tank (12) and the batteries (13a, 13b) are disposed on an upstream side of the heat exchanger (15) in a flow direction of the outside air. |
