Exhaust gas cooling device for an internal combustion engine has a heat-transmission unit in an outer shell with tubular interconnected ribs

摘要

Pushed into an outer shell (1), a heat-transmission unit (2) consists of upper and lower (10) parts, out of which tubular, interconnected ribs (14) extend through a channel (15) in the heat-transmission unit. This structure increases efficiency in a cooling device in comparison with known structures so that little space is needed and advantages in cost and weight are achieved.