Heat exchanger having tubes are brazed, and a process for its assembly.

摘要

The invention relates to a heat exchanger tubes are brazed, as well as a process for its assembly. & br / the heat exchanger comprises a bundle of parallel tubes (26) and a header plate (10) provided with holes (22) in each of which are introduced and brazed the respective ends (24) of several tubes belonging to a same group, each hole (22) having an elongated cross section adapted to receive, contiguously, the ends (24) of the tubes, the elongate cross section of the hole which has a major axis of which the length (l) is lower than the sum of the initial length of the respective major axes of the sections of the ends (24), before introduction into the hole (22). br / application to the heat exchangers for motor vehicles.