| 摘要 |
PURPOSE:To increase specific surface area with less resistance to flow and also the capacity of heat accumulation by piling up metal plates on which slits are regularly engraved in such a fashion that the metal plates can not make rotation among them and putting them in a casing. CONSTITUTION:Metal plates 10 and 12 have many slits 11 and 13 which are engraved on the plates and arranged regularly in the same direction. The slits 11 are provided perpendicularly to the slits 13 to secure a flow channel that is defined by both slits. Each of metal plates 10 an 12 has a pair of holes 14 and 14 formed in each, and shafts 15 and 15 go through those holes 14 and 14 to limit relative displacements of both metal plates. Metal plate thus piled up with relative movements prohibited are put into a casing 16 to form a heat accumulator. Since the ratio of void in the metal plates is smaller than metal nets and dead space can be also made smaller, sufficient heat accumulation can be made without making the working gas channel narrow.
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