发明名称 |
METHOD OF EXPANDING CORRUGATED TUBE AND MANUFACTURING A HEAT EXCHANGER WITH EXPANSION TUBE |
摘要 |
A method of manufacturing a heat exchanger coil, the method comprising the steps of reconfiguring the cross-sectional shape of an elongate tube from a substantially round cross-sectional shape having a first outer circumference to a reduced or corrugated cross-sectional shape having a second outer circumference which is less than the first outer circumference, forming a plurality of u-shaped hairpin tubes from the elongate tube, the u-shaped hairpin tubes each having a pair of parallel legs, inserting each of the parallel legs of the hairpin tube through a predetermined opening in at least one fin plate, attaching a plurality of return bends to the u-shaped hairpin tubes to form a predetermined circuitry and then incrementally applying fluid pressure from a fluid pressure source to an internal channel of the circuitry to incrementally expand the circuitry to form a tight heat transfer bond between the circuitry and at least one wall of the predetermined opening. |
申请公布号 |
WO2012021670(A3) |
申请公布日期 |
2012.04.26 |
申请号 |
WO2011US47348 |
申请日期 |
2011.08.11 |
申请人 |
CORRUGATED TUBE CORPORATION, LLC;STROUP, STEVEN, L.;KLOPFENSTEIN II, JAMES, W. |
发明人 |
STROUP, STEVEN, L.;KLOPFENSTEIN II, JAMES, W. |
分类号 |
F28D1/047;B21D53/02;F28F1/06 |
主分类号 |
F28D1/047 |
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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