Heat exchanger unit for a combustion engine

摘要

The unit for the cooling of exhaust gases has a surface is arranged between a cooling fluid and a flow channel (2) having bounding walls (6, 10) in a first section (9) which is greater than in a second section (12). Ribs (14) provided over the length of the channel (2) are distributed so that a cross-section of the flow channel are less than or equal to the flow channel cross section in the second section (12).