Abstract: The invention relates to tubes for heat exchangers through which a fluid flows, intended to promote heat exchange between an external medium and said fluid, formed by at least two plates connected to each other in order to define a circulation duct. The tube comprises a means for partially blocking the circulation duct intended to keep the passage cross section of said duct substantially constant between an inlet orifice and an outlet orifice. The heat exchangers have plate based tubes and are used especially as an evaporator in an air conditioning system or radiator in the cooling circuit of a vehicle.

Abstract: A plate evaporator comprising a stack of pockets (1) each formed from two dished plates (2, 3) delimiting between them a mutually juxtaposed inlet chamber and outlet chamber (6, 7). One at least of the inlet and outlet pipes (17, 18), disposed at a same end (21) of the stack, communicates with the chambers via an end box (10) interposed between the stack and the pipes. Advantageously, the dimensions of the end box allow a mutual vertical stagger of the pipes (17, 18), facilitating their installation and connection.

Abstract: The invention relates to a tube for a heat exchanger through which a fluid flows, intended to promote heat exchange between an external medium and said fluid, formed by at least two plates 4, 5 connected to each other in order to define a circulation duct, the cross section of which is a cross section for passage of said fluid, said circulation duct having a fluid inlet orifice 13 and a fluid outlet orifice 14, wherein said tube comprises a means 12 for partially blocking the circulation duct intended to keep the passage cross section of said duct substantially constant between the inlet orifice 13 and the outlet orifice 14.

Abstract: Arrangement of inlet and outlet pipes for an evaporator A plate evaporator comprising a stack of pockets (1) each formed from two dished plates (2, 3) delimiting between them a mutually juxtaposed inlet chamber and outlet chamber (6, 7). One at least of the inlet and outlet pipes (17, 18), disposed at a same end (21) of the stack, communicates with the chambers via an end box (10) interposed between the stack and the pipes. Advantageously, the dimensions of the end box allow a mutual vertical stagger of the pipes (17, 18), facilitating their installation and connection.