发明名称 |
FLAT HEAT TRANSMISSION TUBE, METHOD FOR MANUFACTURING CROSS-FIN-TUBE-TYPE HEAT EXCHANGER PROVIDED WITH SAME, CROSS-FIN-TUBE-TYPE HEAT EXCHANGER MANUFACTURED USING SAID METHOD |
摘要 |
A flat heat transfer tube 1 according to the invention is a flat heat transfer tube 1 used for a cross fin tube type heat exchanger including the flat heat transfer tube 1 having a bending portion and a plurality of holes 2 extending through in a direction parallel with an axis direction of the flat heat transfer tube 1, and a plurality of plate fins bonded by welding to the flat heat transfer tube 1, wherein an interval t 1 1 between an outer surface of the flat heat transfer tube 1 and an inner surface of the hole 2 of a portion which is curved with a small radius of curvature during bending is larger than an interval t 1 2 between an outer surface of the flat heat transfer tube 1 and an inner surface of the hole 2 of a portion which is curved with a large radius of curvature during bending in a cross section of a portion of the flat heat transfer tube 1 which corresponds to the bending portion before bending. |
申请公布号 |
EP2921808(A1) |
申请公布日期 |
2015.09.23 |
申请号 |
EP20120888415 |
申请日期 |
2012.11.13 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
HOKAZONO, KEISUKE |
分类号 |
F28F1/02;B21D7/08;B21D53/08;B23P15/26;F25B39/00;F28D1/02;F28D21/00;F28F1/32 |
主分类号 |
F28F1/02 |
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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