Patent ID: 8505499

Claim:
A construction machine comprising: an automotive vehicle body; a cab provided on said vehicle body and equipped with an indoor machine in an air conditioner supplying conditioned air; an engine provided on said vehicle body and equipped with a supercharger; a hydraulic pump which is driven by said engine to pressurize operating oil for supply; a cooling fan which is rotated by receiving power from a power source to suck in outside air as a cooling air; and a heat exchanger unit for cooling a liquid by passage of said cooling air sucked in by said cooling fan through said heat exchanger unit, said heat exchanger unit including a radiator for cooling engine cooling water; an oil cooler for cooling operating oil; an intercooler for cooling intake air supplied from said supercharger in said engine; a condenser serving as an outdoor machine of said air conditioner for cooling a coolant; and a fuel cooler for cooling fuel to be supplied to said engine, said construction machine characterized in that; said heat exchanger unit is arranged to oppose a front surface side of said cooling fan and is positioned at an upstream side, in a flow direction (A) of said cooling air being sucked in by said cooling fan, and generally parallel to said front surface side of said cooling fan; said radiator and said oil cooler are positioned at said front surface side of said cooling fan, which position is an upstream side, in the flow direction (A) of said cooling air being sucked in by said cooling fan and are arranged in parallel with each other in the flow direction (A) of said cooling air; said intercooler and said condenser are arranged in parallel with each other and each are arranged at a front surface side of said radiator and said oil cooler, which arrangement is upstream, in the flow direction (A) of said cooling air, from said radiator and said oil cooler; said fuel cooler is arranged at a front surface side of said condenser, which arrangement is upstream, in the flow direction (A) of said cooling air, from said condenser; and said fuel cooler and said condenser are arranged at the downstream side in the flow direction (A) of said cooling air from a front surface of said intercooler with reference to the front surface of said intercooler.