| 摘要 |
PROBLEM TO BE SOLVED: To inhibit the reduction of the amount of the refrigeration oil flowing into a compressor during the operation of a refrigeration cycle in a structure where refrigerants flowing in heat exchange core parts of first and second evaporation parts are interchanged in a width direction of the heat exchange core parts.SOLUTION: A refrigerant evaporator 1 is composed of a laminated body of a first tube unit 41, which is formed by joining a pair of core plates, and a laminated body of a second tube unit 51, which is formed by joining a pair of core plates. The first tube unit 41 includes: a first linear tube 42 and a third linear tube 43; a first tank formation part 46 which communicates with the first tube 42 and forms a first tank part; and a second tank formation part 47 which communicates with the third tube 43 and forms a second tank part. The second tube unit 51 includes: a second linear tube 52 and a fourth linear tube 53; a fourth tank formation part 57 which communicates with the second tube 52 and forms the second tank part; and a third tank formation part 56 which communicates with the fourth tube 53 and forms the first tank part. |
