| 摘要 |
PROBLEM TO BE SOLVED: To provide an EGR cooler that suppresses the vibration of a heat transfer pipe for especially relieving the stress concentration of the heat transfer pipe support part at both ends, and at the same time can prevent air from being stored in a water channel when being installed horizontally. SOLUTION: Inside a cooler case 1, a partition board 9 that divides the inside into two parts and allows each heat transfer pipe 4 to pass is provided, and the partition board 9 is formed in a net shape for circulating cooling water W. Alternatively, the partition board that divides the inside into two parts and allows each heat transfer pipe 4 to pass is provided. In each of the divided cooler case 1, a cooling water inlet is provided on the lower surface of one end of a longitudinal direction, a cooling water outlet is provided on the upper surface of the other, and an air vent port is provided on an upper surface that is at the opposite position of the cooling water inlet of one end. |
