| 摘要 |
<p>PCT No. PCT/EP87/00189 Sec. 371 Date Oct. 5, 1988 Sec. 102(e) Date Oct. 5, 1988 PCT Filed Apr. 7, 1987 PCT Pub. No. WO87/06328 PCT Pub. Date Oct. 22, 1987.In a vacuum solar collector comprising a seamless deep-drawn trough (1) which contains an absorber (9) and conduits (12, 13) for a heat transport medium and comprises an edge (4) on which a radiation-permeable pane (7) rests which covers the trough and which is supported over its area by spaced support elements (17) bearing in turn on the trough bottom (3), it is provided that the trough bottom (3) is made corrugated.</p> |
