Heat exchangers the core of which is produced from a three-dimensional hollow laminated panel

A heat exchanger, comprising:

• a network of channels (18) extending between two parallel faces (10, 12), in order to allow the circulation of a heat transfer fluid in the channels and the heat exchange between this heat transfer fluid and the outside through at least one of said faces;
• the network of channels being formed by a three-dimensional hollow laminated panel (30) based on fibres hardened by the impregnation of a resin, comprising two two-dimensional woven layers which are impervious and stiff forming said parallel faces (10, 12), and a stiff weaving of orthogonal fibres (14), connecting the two layers together by providing a hollow intercalated space (16) while forming rows of parallel walls (20), between them defining the channels (18);
• means for the distribution of fluid, arranged between a fluid inlet (42) and one of the ends of each of the channels of the network;
• and
• means for the collection of fluid, arranged between a fluid outlet (44) and the opposite end of each of the channels of the network;
• this exchanger being characterized in that it does not have attached elements forming manifolds for the distribution of fluid,
• and in that the means for the distribution, respectively the collection, of fluid are means incorporated into the hollow laminated panel, comprising a longitudinal recess (38) produced in the laminated panel along a longitudinal edge of the latter forming an angle with the direction of the channels, this recess (i) opening onto the inner side of the longitudinal edge on said channels, (ii) being closed on the outer side of this same edge, and (iii) being in fluidic communication with said inlet, respectively said outlet, of fluid.