摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cooling device of an engine capable of improving the cooling efficiency of an oil cooler.SOLUTION: In an engine air-cooling device, a ventilation guide plate 6 is disposed on a side of a cylinder 4 and a cylinder head 5. A ventilation path 7 is formed between the cylinder 4, a cylinder head 5 and the ventilation guide plate 6. The ventilation path 7 is communicated to a fan case 2, and cooling air 8 generated in the fan case 2 is supplied to the ventilation path 7. An oil cooler 9 is disposed along the ventilation guide plate 6 in the ventilation path 7. To an inside ventilation clearance 10 between the cylinder 4, the cylinder head 5, and the oil cooler 9, an inward surface 9b of a heat radiating portion 9a of the oil cooler 9 is turned, and to an outside ventilation clearance 11 between the oil cooler 9 and the ventilation guide plate 6, an outward surface 9c of the heat radiating portion 9a of the oil cooler 9 is turned.</p> |