| 摘要 |
An EGR cooler is disclosed. The EGR cooler of the present invention comprises: a tube-laminated core formed by arranging multiple gas tubes, of which both ends are opened, to be adjacent to each other at the side surfaces thereof such that the gas tubes are laminated in parallel; a body shell having a body unit, in which the tube-laminated core is accommodated, and a pair of end tank units integrally formed at both ends of the body unit; cooling water pipes combined with the body shell so as to supply cooling water to the periphery of the tube-laminated core, and discharging the cooling water to the outside; and a pair of flanges fittedly-coupled into each of the pair of end tank units. The body shell is formed by the assembling of a top shell piece and a bottom shell piece. The top shell piece comprises: a body top unit for forming the top part of the body unit; and a pair of end tank top units forming the top part of each of the pair of end tank units. The bottom shell piece comprises: a body bottom unit for forming the bottom part of the body unit; and a pair of end tank bottom units for forming the bottom part of each of the pair of end tank units. |
