| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchange tube comprised by composing an inner fin more rationally. SOLUTION: In the heat exchange tube which is a tube comprised by providing the inner fin 200 in a passage 110 passing a medium, and carrying out heat exchange of the medium by heat transferred to the tube, the inner tube is provided with a plurality of corrugated parts 210 and 220 wherein waveforms are mutually mismatched, and axes L<SB>1</SB>in amplitude directions and axes L<SB>2</SB>in wavelength directions are in parallel with each other, the corrugated part has protruding parts 201 alternately protruding with respect to the amplitude direction, and intermediate parts connecting the protruding parts, and in the plurality of corrugated parts, the intermediate parts are connected to each other, and bases 203 of the protruding parts and intermediate parts are bent in a direction reducing crossing anglesθof the intermediate parts. COPYRIGHT: (C)2005,JPO&NCIPI
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