HEAT EXCHANGER

摘要

The invention relates to a heat exchanger comprising, in a housing, a heat exchanger device having several heat exchange units that are introduced between a gas inlet area and a gas outlet area. Said heat exchange units comprise cooling tubes (14) with cooling ribs (15). Hollow-shaped tubulators (30) are formed by stamping the surface of the cooling ribs (15) on the periphery of the cooling tubes (14).