HEAT EXCHANGER

PROBLEM TO BE SOLVED: To provide a heat exchanger having improved performance and reliability while storing it in a limited casing space, the heat exchanger having had a problem that the performance of the heat exchanger is greatly lowered because when a header of the parallel-flow heat exchanger is bent into an L-shape, a flat tube vertically arranged on a bent portion of the header, a fin in close contact with the flat tube and the header are deformed. SOLUTION: The heat exchanger comprises the plurality of flat tubes 3 arranged vertically between the header 5 of a longitudinal portion installed in horizontal and each of a lower side headers 2 and two upper side headers 5 and the honeycomb fin 4 arranged to meander between the flat tubes 3. Connection tubes 7, 8 connected to the longitudinal portion and a short portion of the heat exchanger, are inserted into an L-shaped connection tube 9 to form the L-shaped heat exchanger which has improved storage efficiency. Thus, the heat exchanger has improved performance and reliability. COPYRIGHT: (C)2005,JPO&NCIPI