COOLER FOR CONSTRUCTION MACHINERY, AND CONSTRUCTION MACHINERY

摘要

A cooler for construction machinery, having at least one heat exchanger including a radiator (9) for cooling the cooling water for an engine (8) of a hydraulic shovel, and a cooling fan (11) for generating a cooling air flow (P) for cooling the heat exchanger when a rotary shaft (10) is driven, wherein a substantially disk-shaped fluid guide means (12) whose outer diameter Do is smaller than the outside diameter D of the cooling fan (11) is provided on the outlet side of the cooling fan (11). Thus the noise can be reduced more than conventional while ensuring a sufficient amount of cooling air in coping with the trend toward stricter noise regulation of construction machinery.