Abstract: The invention relates to a heat exchanger which is intended, for example, for a motor vehicle and which comprises a tube bundle (2) and spacers which are positioned between the tubes of the bundle in order to promote the exchange of heat. The bundle is defined by two end spacers (70, 71). The inventive exchanger also comprises two collector plates through which the ends of the bundle are intended to pass and at least one flange (50, 51) which is disposed on one or the end spacers. Advantageously, the flange comprises at least one expansion zone (80) in order to compensate for the longitudinal expansions thereof, while the transverse section of the flange in the expansion zone is essentially U shaped.

Abstract: The invention relates to a heat exchange fin, particularly for cooling, consisting of a strip (30) comprising a first heat-exchange zone (18), intended to collaborate with tubes of a first heat exchanger, and a second heat-exchange zone (20), intended to collaborate with tubes of a second heat exchanger. According to the invention, said strip comprises a zone of weakness (22) able to allow it to be parted into a first element (64) comprising said first heat-exchange zone (18) and a second element (66) comprising said second heat-exchange zone (20). The invention also relates to a heat-exchange module comprising such a fin and to a method of producing such a module.