| 摘要 |
PROBLEM TO BE SOLVED: To organically improve the functions of a construction machine on the whole, regarding a reduction in temperature rise in an engine room by providing the engine room for accommodating an engine with a partition member in the engine room, beside which a cooling device mounted on the construction machine is arranged with a gap inbetween. SOLUTION: A negative pressure is generated in a ventilation opening CE2 of a cooling air ventilation circulation passage CDE2 formed at a gap between an engine cover C and an outer periphery of the partition member 60 against a cooling air introduction flow passage CD1 by the cooling air flowing in the cooling air introduction flow passage CD1 between an engine front cover C1 and the partition member 60. An atmosphere fluid in the engine room 12 is ventilated to cool the engine room 12 and the engine 22. COPYRIGHT: (C)2004,JPO
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