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公开(公告)号:US20170074592A1
公开(公告)日:2017-03-16
申请号:US15123495
申请日:2014-03-05
发明人: Yasutaka WADA , Haruhito KUBOTA , Yukimasa YAMAMURA , Ichiro UCHIYAMA , Keiji OYAMA , Toshiki YAMASAKI , Yukihiko MATSUMURA , Yoshifumi KAWAI , Takashi NOGUCHI
CPC分类号: F28D7/02 , B23P15/26 , F28D7/022 , F28D7/106 , F28F1/42 , F28F13/06 , F28F13/12 , F28F2001/428 , F28F2210/06 , F28F2215/00
摘要: A double tube and the like includes: a cylindrical outer tube; a cylindrical inner tube including a helical protrusion in an outer circumferential surface, the inner tube being provided inside the outer tube; and a helical flow passage forming member that forms a helical flow passage inside the inner tube, the helical flow passage forming member being provided inside the inner tube.
摘要翻译: 双管等包括:圆筒形外管; 圆筒形内管,其在外周面具有螺旋状的突出部,所述内管设置在所述外管的内部; 以及在内管内形成螺旋流路的螺旋流路形成部件,在内管的内部设置有螺旋流路形成部件。