Stackable heat exchanger segments and heat exchangers with several stacked heat exchanger segments

Abstract

A stackable heat exchanger segment (10), comprising at least an inlet flow channel system with several closed flow channels (12) branching off from at least one inlet channel (11) with at least one inlet opening (13), and joined at at least one return manifold (14) with at least one return opening (15), wherein the closed flow channels (12) form a flow structure that can be flowed over and / or through by a fluid in the opposite direction of flow, characterized in that: - an additively manufactured TPMS flow structure is provided; - the heat exchanger segment (10) has a rectangular or polygonal contour when viewed perpendicular to a flow plane; and - the inlet channel (11) and the return manifold (14.1) are formed on opposite side edges (10.1, 10.2); and - an angled return line (14) is provided, which Return collection channel (14.1) comprises which combines the inlet flow channels (12) and is formed on a side edge (10.2) opposite the inlet channel (11), and at least one return channel (14.2) which connects to it and extends to the inlet channel (11).