发明名称 |
Spiral flighted double walled heat exchanger |
摘要 |
A heat transfer coil (10) and method of manufacture where a second piece of tubing (12) is wound around a first piece of tubing (10) while the first piece is straight, where the first piece of tubing (10) is then formed to define the overall coil shape, and then the first and second pieces of tubing (10,12) internally sized by internal pressurization to also force the two pieces of tubing (10,12) into intimate contact with each other. <IMAGE> |
申请公布号 |
AU4477393(A) |
申请公布日期 |
1995.03.16 |
申请号 |
AU19930044773 |
申请日期 |
1993.08.20 |
申请人 |
ELECTRIC POWER RESEARCH INSTITUTE |
发明人 |
ANDREW L. BLACKSHAW;DOUGLASS M. BODREY;CARL C. HILLER;GLEN P. ROBINSON JR |
分类号 |
B21D53/02;F28D7/02;F28D7/04;F28D7/08 |
主分类号 |
B21D53/02 |
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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