| 摘要 |
PROBLEM TO BE SOLVED: To provide an EGR gas cooling device capable of effectively dissolving a problem of coolant leakage due to the corrosion of a plate or the like constituting a coolant channel part caused by condensate.SOLUTION: An EGR gas cooling device 10 is constituted by stacking at least two stacking units 14 each of which is constituted by stacking an exhaust gas channel part 13 formed of an exhaust gas channel 15 with a plurality of fins arranged in parallel and a coolant channel part 12 which is located below the exhaust gas channel part 13 and is made by demarcating a coolant channel 16 for circulating coolant with a cooling pate 12'. Therein, the exhaust gas channel 15 is used in such an attitude as to face in a vertical direction or a substantially vertical direction, and a lower end region 13a of the exhaust gas channel part 13 protrudes downward below the lower edge surface 12a of the coolant channel part 12. |
