REFRIGERANT EVAPORATOR

摘要

A refrigerant evaporator having increased heat exchange performance achieved by uniformly distributing liquid refrigerant to refrigerant tubes connected to a first tank and a second tank of a U-turn block section. The U-turn block section (15) of the refrigerant evaporator (1) has blocks defining refrigerant flow paths, and one of the blocks is constructed such that the refrigerant flows into either a first tank (6) or a second tank (7) of an upper tank (4) from a direction along a partition wall (4C), is caused to flow from there to the other tank, and is then distributed and caused to flow to the refrigerant tubes (2) from each of the first tank (6) and the second tank (7). The partition wall (4C) partitioning between the first tank (6) and the second tank (7) of the upper tank (4) in the U-turn block section (15) has refrigerant distribution holes (4M) arranged in the longitudinal direction of the partition wall (4C), and the refrigerant distribution holes (4M) interconnect the first tank (6) and the second tank (7).