Patent ID: 7066243

Claim:
An evaporator, comprising: a core including an upstream-side heat exchanging tube group and a downstream-side heat exchanging tube group arranged front and rear, each of said heat exchanging tube groups including a plurality of heat exchanging tubes disposed parallel with each other at certain intervals; an inlet-side tank disposed along one end side of said upstream-side heat exchanging tube group; an outlet-side tank disposed along one end side of said downstream-side heat exchanging tube group; and a refrigerant turning member disposed along the other end side of both said heat exchanging tube groups, wherein each one end of said heat exchanging tubes constituting said upstream-side heat exchanging tube group is connected to said inlet-side tank, while the other end thereof is connected to said refrigerant turning member, wherein each one end of said heat exchanging tubes constituting said downstream-side heat exchanging tube group is connected to said outlet-side tank, while the other end thereof is connected to said refrigerant turning member, whereby refrigerant flowed into said inlet-side tank is introduced into said outlet-side tank via said upstream-side heat exchanging tube group, said refrigerant turning member and said downstream-side heat exchanging tube group, while said refrigerant passing through both said heat exchanging tube groups evaporates by exchanging heat with ambient air, and wherein said inlet-side tank is provided with refrigerant distributing resistance means configured to distribute said refrigerant evenly into said heat exchanging tubes constituting said downstream-side heat exchanging tube group.