CONSTRUCTION MACHINE

摘要

PROBLEM TO BE SOLVED: To reduce a temperature inside a pump compartment even when an engine compartment and the pump compartment are separated with a partition wall.

SOLUTION: The inside of a building cover 25 is partitioned into the engine compartment 29 in which an engine 15 and a heat exchanger 18 are housed and the pump compartment 32 in which a hydraulic pump 16 is housed by constructing the partition wall 27 in the building cover 25. A cooling fan 17 is installed in the engine compartment 29. A cross-flow fan 35 is installed in the pump compartment 32 separately from the cooling fan 17. Even when the outside air cannot be taken into the pump compartment 32 by the cooling fan 17, it can be taken into the pump compartment 32 by the cross-flow fan 35. The temperature in the pump compartment 32 is reduced by cooling the hydraulic pump 16 by the outside air.

COPYRIGHT: (C)2007,JPO&INPIT