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公开(公告)号：US20150224561A1
公开(公告)日：2015-08-13
申请号：US14696491
申请日：2015-04-27
发明人： Sang Chul Byon , Yong Ho Kim , Dae Keun Park , Nam Joon Lee
IPC分类号： B21D53/06
CPC分类号： B21D53/06 , F28D7/106 , F28D7/14 , F28F1/426 , F28F2001/428 , F28F2210/06 , F28F2265/28 , Y10T29/49361 , Y10T29/49377 , Y10T29/49391
摘要： A double pipe type heat exchanger includes an inner pipe having a first flow path defined therein and an outer pipe arranged around the inner pipe to define a second flow path between the inner pipe and the outer pipe. The inner pipe includes a spiral groove formed on an outer circumferential surface of the inner pipe to extend along a longitudinal direction of the inner pipe. The outer pipe includes a reduced diameter portion protruding inwardly so that the inner surface of the outer pipe is intermittently contacted with the outer circumferential surface of the inner pipe.
摘要翻译： 双管式热交换器包括具有限定在其中的第一流路的内管和围绕内管布置的外管，以在内管和外管之间限定第二流动路径。 内管包括形成在内管的外周面上的螺旋槽，沿着内管的长度方向延伸。 外管包括向内突出的减小直径部分，使得外管的内表面与内管的外周表面间歇地接触。
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公开(公告)号：US09821364B2
公开(公告)日：2017-11-21
申请号：US14696491
申请日：2015-04-27
发明人： Sang Chul Byon , Yong Ho Kim , Dae Keun Park , Nam Joon Lee
CPC分类号： B21D53/06 , F28D7/106 , F28D7/14 , F28F1/426 , F28F2001/428 , F28F2210/06 , F28F2265/28 , Y10T29/49361 , Y10T29/49377 , Y10T29/49391
摘要： A double pipe type heat exchanger includes an inner pipe having a first flow path defined therein and an outer pipe arranged around the inner pipe to define a second flow path between the inner pipe and the outer pipe. The inner pipe includes a spiral groove formed on an outer circumferential surface of the inner pipe to extend along a longitudinal direction of the inner pipe. The outer pipe includes a reduced diameter portion protruding inwardly so that the inner surface of the outer pipe is intermittently contacted with the outer circumferential surface of the inner pipe.
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