Heat exchanger assembly with partitioned manifolds

摘要

A heat exchanger assembly (20) includes a first single-piece manifold (22) and a second single-piece manifold (24) spaced from and parallel to the first single-piece manifold (22). Each of the first and second single-piece manifolds (22, 24) has a tubular wall (26) defining a flow path (FP). A plurality of flow tubes (44) extend in parallel between the first and second single-piece manifolds (22, 24) and are in fluid communication with the flow paths ( FP ) . An insert ( 50 ) having a distribution surface (52) is slidably disposed in the flow path (FP) of the first single-piece manifold (22) to establish a distribution chamber (56) within the first single-piece manifold (22). A series of orifices (66) defined in the distribution surface (52) of the insert (50) are in fluid communication with the flow path (FP) and the distribution chamber (56) for uniformly distributing a heat -exchange fluid between the flow path ( FP ) and the flow tubes ( 44 ).