| 摘要 |
PROBLEM TO BE SOLVED: To provide a construction machine capable of preventing engine stall and reducing uneconomical consumption of fuel with an appropriate fuel injection amount.SOLUTION: A backhoe 1 is a construction machine in which a hydraulic pump 24 is driven by driving force from an engine 9. An output torque characteristic Tp1 of the engine 9 is set on the basis of an atmospheric pressure P1 detected by an atmospheric pressure sensor 30 being atmospheric pressure detection means. A rotation speed Vlb is set so that, in a low idle rotation speed, a maximum torque of the engine 9 becomes larger than a maximum absorption torque Th of the hydraulic pump 24. |
