Flow channel for a heat exchanger and heat exchanger comprising flow channels said flow channels

Flow channel (1) which can be traversed by a medium flow direction P to a heat exchanger with two surfaces of the heat exchanger (F1, F2) substantially opposite each other, arranged in parallel individual and / or distance one channel height H, which each have a structure formed by a large number of structural elements arranged beside each other in rows transversely to the flow direction P, projecting into the flow channel, wherein the elements structural respectively a width B, a length L, a height h, an angle of α outlet and a longitudinal axis, at least two rows (17, 18, 19, 20) with structural elements (13, 13 ' ) arranged on surfaces of the heat exchanger (F1, F2) substantially opposite each other, with an overlap (U) with respect to each other, presenting, respectively, a row (17, 18, 19, 20) structural elements (13, 13 ') identical and arranged in pairs (32, 33, 34, 35) individual structural elements 13, 14, 15, 16) specularly being between other, separated by a distance, and next to each other, characterized by overlapping, respectively, a structural element of a surface heat exchanger with a structural element of the exchanger surface opposite heat and that all elements structural (13, 13) of the rows (17, 18, 19, 20, 21, 22) opposite each other are oppositely oriented in particular have an angle α opposite output.