发明名称 |
Flachrohr mit mehreren Durchgängen für Wärmetauscher und Wärmetauscher mit solchen Röhren |
摘要 |
<p>A multi-bored flat tube (1) has outermost unit passages (11A) located at both ends of the tube (1) and intermediate unit passages (11) between the outermost unit passages. The outermost unit passage (11A) has a circular-based inner surface (12) in cross-section, such as a circumferentially smooth curved shape in cross-section like a perfect circular shape or elliptical shape, or has a circular-based inner surface (12) in cross-section having a plurality of inner fins (15) extending in a longitudinal direction of the tube. The intermediate unit passage (11) has a non-circular based cross-sectional shape, such as rectangular, triangular, trapezoidal, or circular based shape including a plurality of inner fins (15). The tube (1) is strong against being hit by a stone and has a high heat exchanging performance. <IMAGE></p> |
申请公布号 |
DE69822361(T2) |
申请公布日期 |
2005.02.17 |
申请号 |
DE1998622361T |
申请日期 |
1998.05.29 |
申请人 |
SHOWA DENKO K.K., TOKIO/TOKYO |
发明人 |
TOKIZAKI, KAZUMI;HIGO, YUTAKA;GO, NOBUAKI;ICHIYANAGI, SHIGEHARU |
分类号 |
F28D1/053;F28F1/02;F28F1/40;F28F19/00;(IPC1-7):F28D1/053 |
主分类号 |
F28D1/053 |
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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