| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat storage unit capable of securing large heat storage capacity and high performance, and reducing parts count and cost by absorbing volume change of heat storage material without being accompanied with falloff of heat storage capacity, falloff of heat transfer rate and oxidation degrading of thermal material by oxygen in air. SOLUTION: A main member 12 includes a fluid flow passage forming part 25 having a fluid flow passage 24 in which fluid introduced from a inlet part 82 flows formed inside of an outer wall part 21 thereof and a heat storage material filling space forming part 28 having a heat storage material filling space 27 to be filled with thermal storage material changing volume thereof according to heat storage condition formed adjacently to the fluid flow passage, and is provided with a fluid passage switching part 13 selectively switching a place into which fluid introduced from the inlet part 82 flows to the fluid flow passage 24 and a bypass flow passage bypassing the fluid flow passage according to a position of a transfer member 42 transferring due to volume change of heat storage material, on an outside thereof. COPYRIGHT: (C)2004,JPO
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