| 发明名称 |
ROHRKONSTRUKTION, INSBESONDERE FUER WAERMEAUSTAUSCHER |
| 摘要 |
<p>A tubular structure particularly for heat exchangers comprises a first circular cross-section tube 1 and a second multi-lobe cross-section tube 2 forcibly fitted therewithin. The tube 2 is obtained by rolling along the generatrix lines (7, 8, 9) a tube having originally the same cylindrical cross- sectional shape as the tube 1. <IMAGE></p> |
| 申请公布号 |
DE2949690(A1) |
申请公布日期 |
1980.07.03 |
| 申请号 |
DE19792949690 |
申请日期 |
1979.12.11 |
| 申请人 |
HIROSS INTERNATIONAL CO. S.A. |
发明人 |
SINCLAIR MILLER,ALAN |
| 分类号 |
F16L9/18;F28D7/10;F28F1/40;(IPC1-7):28F1/02 |
主分类号 |
F16L9/18 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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