Method of manufacturing a manifold for a fuel cell system, manifold and system obtained through said process

摘要

The method involves extruding a parison of a thermoplastic material with two opposite walls, and placing the parison in a mold with a complementary upper half (10b). The mold is closed in a manner to create an intermediate zone in a plane intermediate zone (16b) between a main linear cavity (11b) and a small transversal cavity (14b), and the walls are placed side by side in a sealed manner with gas in the intermediate zone. The gas is insufflated inside the parison in each cavity for plating the walls of the parison on the mold to form a conduit in each cavity, and the mold is opened.