Engine hood of construction machinery, engine cooling system for the construction machinery and engine room structure of construction machinery

摘要

PROBLEM TO BE SOLVED: To reduce manufacturing costs while holding exhaust efficiency of cooling air and noise level at predetermined levels in an engine hood, an engine room structure, and an engine cooling device of construction machinery.;SOLUTION: This engine hood 40 is provided with a hood body 41 attached to a ceiling face 22 so as to open and close an opening for maintenance, having such shape that swells upward for the ceiling face 22, and having an exhaust port 41ba for cooling air in a section on the downstream side in the direction of fan axial flow and a plate 42 attached to an inner sid of the hood body 41 at a predetermined interval in the vertical direction for the hood body 41 and on an engine room side more than the exhaust port 41ba. The plate 42 connects the downstream side in the direction of fan axial flow with the hood body 41 at a predetermined interval on the upstream side in the direction of fan axial flow for the hood body 41.;COPYRIGHT: (C)2005,JPO&NCIPI