| 摘要 |
1537185 Solar energy collectors; heat pipes THOMSON-BRANDT & COMPAGNIE DES LAMPES 27 April 1977 [30 April 1976] 17671/77 Heading F4U A solar collector comprises a heat pipe formed from a first closed member 2 having an evaporator part 21 and a condenser part 22 and at least the evaporator section is surrounded by a second, evacuated and closed member 1 constituted by transparent material. A portion 14 of the envelope 1 is partially covered, e.g. by a layer 14 of indium oxide, to limit heat loss by radiation and a lower surface has a metallic reflecting layer 13, whilst a further reflector outside the device may be utilized. Seals between the members 1 and 2 are described and the members 2 may be of metal or glass, or the parts 21, 22 may differ in materials, or the evaporator portion may be constituted by a double-walled tube, Fig. 6.
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