FINLESS HEAT EXCHANGER

摘要

PURPOSE: A finless heat exchanger is provided to reduce the manufacturing costs and the weight of a heat exchanger by omitting a heat-radiating fin and to reduce the probability of the leakage of heat exchange media by using an integrally manufactured tube. CONSTITUTION: A finless heat exchanger comprises: a tube(20) wherein heat exchange media flows in the inside and a plurality of tube-tank unit bodies(50) is arranged to the longitudinal direction in parallel in both end part; and a unit tank(12) which is composed of a pair of unit tank plates(11) which is interconnected each other and wherein a cup(14) which includes a tube insertion groove(15) is formed in one side. The unit tank is inserted into the tube-tank unit body and is combined. A through-hole(13) in which the heat exchange media passes through is formed in the cup.