| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a structure dropping temperature of intake air which is highly supercharged by a turbocharger and of which temperature gets high to temperature not impeding combustion without causing enlargement of an intercooler and without increase of air capacity of a cooling fan, and supplying an engine with the intake air of dropped temperature. Ž<P>SOLUTION: This structure is provided on a hydraulic excavator 101, and includes a cooling fan 3, the turbocharger 9, an intercooler 7, intercooler upstream piping 11, intercooler downstream piping 14, and a fan shroud 12 disposed so as to surround the cooling fan 3. A part of the intercooler upstream piping 11 is disposed at a position near an outer circumference of the cooling fan 3 at a downstream of the cooling fan 3 so as to extend along a rotation direction of the cooling fan 3. For example, the part of the intercooler upstream piping 11 comprises an arc shape first piping part 11d disposed along an upper section of the fan shroud 12. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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