COUNTER WEIGHT OF WORKING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a counter weight of a working machine, which can solve such problems that the flow rate of the air discharged outside a cabin after passing a heat exchanger is reduced by an increase in flow resistance of the air, and the discharged air flows back to the heat exchanger again by a whirlwind. SOLUTION: One surface of the counter weight mounted on the working machine is positioned in the engine room for receiving an engine. The counter weight has a plurality of ventilation apertures for discharging the air flow outside the engine room, which air flow has been generated by means of a fan driven by the engine and has passed through the heat exchanger. Tilted surfaces which are enlargements of the ventilation apertures toward the engine room are provided on the engine room side of the ventilation apertures. COPYRIGHT: (C)2005,JPO&NCIPI