Device for joining tubes to a wall, particularly motor vehicle air-conditioning circuit tubes

摘要

The fluid inlet and outlet tubes (1, 2) for a heat exchanger, especially for motor vehicles, are connected to corresponding openings (3, 4) carried by a wall (5), and the tubes are held on this wall through use of a flange (41) exhibiting openings (27, 29) in correspondence with the said tubes. According to the invention, the face (43) of the flange (41) facing the wall (5) has convex curved bearing surfaces (48, 49).