| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite heat exchanger tube that excels in heat transfer performance, bendability, pressure resistance and producibility and enables a reduced size and weight of an apparatus that uses it. SOLUTION: The composite heat exchanger tube comprises a large diameter tube 2 having a groove 4 formed at a constant inclination angleβto the tube axis at least in a part of an outer surface except at both ends, and a small diameter tube 3 having an outside diameter smaller than that of the large diameter tube 2 and arranged along the groove 4. COPYRIGHT: (C)2005,JPO&NCIPI
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