| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat pipe securely operating without using an external power, less affecting heat transportation capacity by the attitude thereof, and capable of stably transporting heat even in high flux, and a compact cooling device using the heat pipe. SOLUTION: In this heat pipe 100, a plurality of flow passage change parts 11 in which at least one of the peripheral length of the flow passage in cross section and the flatness of the flow passage is increased along the flow passage are provided in the flow passage 10 in which working fluid 4 is sealingly stored in the state of being arranged in the increasing direction. The plurality of flow passage changing parts are used as heat receiving parts 2. COPYRIGHT: (C)2005,JPO&NCIPI
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