CONSTRUCTION MACHINE ENGINE HOOD, CONSTRUCTION MACHINE ENGINE ROOM CONSTRUCTION, AND CONSTRUCTION MACHINE COOLING DEVICE

摘要

The invention relates to a construction machine engine hood, a construction machine engine room construction, and a construction machine cooling device, wherein an engine hood (40) is composed of a hood main body (41) openably/closably attached to the ceiling surface (22) outside an engine room (2B) to cover a maintenance opening (22a), shaped to bulge upward with respect to the ceiling surface (22) in the closed attitude in which the opening is closed, and having discharge ports (41ba) for cooling air disposed in a downstream region in the axial flow direction (Y) of the cooling fan (25), and a plate (42) disposed inside the bulging shape of the hood main body (41), with a clearance defined vertically with respect to the ceiling of the hood main body (41), and attached closer to the engine room (2B) rather than to the discharge ports (41ba). The plate (42) is connected to the hood main body (41) on the downstream side in the axial flow direction (Y) of the cooling fan (25) with a predetermined clearance (44) defined in the upstream side in the axial flow direction of the cooling fan (25) with respect to the hood main body (41). Therefore, an air passage (43) for cooling air is defined between the hood main body (41) and the plate (42), improving the effect of discharge of cooling air.