Abstract: The invention relates to a header tank (5) for a mechanically assembled heat exchanger, notably for a motor vehicle, said exchanger (1) comprising a mechanically assembled heat-exchange core bundle (3) and comprising at least one row of tubes (31) with two end tubes (31) one at each end of said at least one row, the tubes (31) respectively comprising an end (311) intended to open into an interior volume of the header tank (5). According to the invention, the header tank (5) comprises at least one end stop (55) configured to be positioned facing an internal surface of the end (311) of an associated end tube (31) and to collaborate with said internal surface in such a way as to prevent said tube (31) from moving in the direction of the interior volume of the header tank (5).

Abstract: The invention relates to a header tank (5) for a mechanically assembled heat exchanger, notably for a motor vehicle, said exchanger (1) comprising a mechanically assembled heat-exchange core bundle (3) and comprising at least one row of tubes (31) with two end tubes (31) one at each end of said at least one row, the tubes (31) respectively comprising an end (311) intended to open into an interior volume of the header tank (5). According to the invention, the header tank (5) comprises at least one end stop (55) configured to be positioned facing an internal surface of the end (311) of an associated end tube (31) and to collaborate with said internal surface in such a way as to prevent said tube (31) from moving in the direction of the interior volume of the header tank (5).

Abstract: A heat exchanger is disclosed. The heat exchanger has a heat exchange assembly which defines first circulation channels for the circulation of a gas to be cooled and second circulation channels for the circulation of a cooling liquid, and two gas intake and gas outlet collectors, respectively, which are assembled on two open faces of the heat exchange assembly, respectively, in which the first circulation channels open. A first collector is crimped to the heat exchange assembly and a second collector is soldered or welded to the heat exchange assembly.

Abstract: A system for the recirculation of exhaust gases is disclosed. The system includes an air intake device for an internal combustion engine with intake ducts feeding air to the combustion cylinders, each combustion cylinder including an intake duct of its own, and the intake ducts include an exhaust gas inlet orifice for exhaust gases. The system also includes a recirculation circuit for the exhaust gases, an injection rail including outlet orifices for the exhaust gases connected to the inlet orifices of the intake ducts, the connection between the inlet orifices and the outlet orifices being produced by a tapered coupling element. The tapered coupling element includes a connection tube connected to the outlet orifice of the injection rail and descending within the inlet orifice to guide the exhaust gases emerging from the injection rail within the intake duct.

Abstract: The invention relates to a method for assembling a regulation valve (10) intended for controlling the flow of gas in a circuit of a motor vehicle equipped with a heat engine, said valve (10) comprising a magnetic structure (15), a rotation axis (21) and a toothed section (16). The main feature of an assembly method according to the invention is that it comprises the following steps:—mouthing of the toothed section (16) on the rotation axis (21),—rigid connection by welding the magnetic structure (15) to the toothed section (16) fixed to the rotation axis (21).