HEATER EXCHANGER AND METHOD FOR PRODUCING A HEAT EXCHANGER

The invention relates to a heat exchanger (10) having an internal conduct (32) for conducting a fluid, and having a heat dissipating body (12, 12′) for dissipating heat of the fluid, wherein the heat dissipating body (12, 12′) having a cavity (14, 14′) extending in a longitudinal direction (36), at least one end piece (34) of the internal conduct (32) extending inside of the cavity (14, 14′) the end piece (34) having an orifice (42) facing a bottom surface (44) of the cavity (14, 14′) for feeding the fluid into a bottom area of the cavity, wherein between an outer shell (48) of the internal conduct (32) and an inner shell (20, 20′) of the heat dissipating body (12, 12′) a streaming space for conducting the fluid away from the bottom (46) is provided, the streaming space extending in the longitudinal direction (36). The inner shell (20, 20′) of the heat dissipating body (12, 12′) comprises a first portion (20) having at least two ribs (22) transversally displaced in relation to each other; and adjacent to the first portion (20) a second portion (20′) having at least two ribs (22′) transversally displaced in relation to each other. At least one rib (22′) of the second portion (20′) is transversally displaced in relation to each rib (22) of the first portion (20) or at least one rib (22) of the first portion (20) is transversally displaced in relation to each rib (22′) of the second portion (20′). The invention further relates to a method of manufacturing of such a heat exchanger.