Invention Grant
- Patent Title: Heat exchange tube
- Patent Title (中): 热交换管
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Application No.: US12698553Application Date: 2010-02-02
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Publication No.: US08418753B2Publication Date: 2013-04-16
- Inventor: Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
- Applicant: Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
- Applicant Address: JP Hamamatsu-shi JP Tokyo
- Assignee: Yutaka Giken Co., Ltd.,Honda Motor Co., Ltd.
- Current Assignee: Yutaka Giken Co., Ltd.,Honda Motor Co., Ltd.
- Current Assignee Address: JP Hamamatsu-shi JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2009-51602 20090305
- Main IPC: F28D7/02
- IPC: F28D7/02 ; F28F1/10 ; F28F1/00 ; F28F1/42

Abstract:
A heat exchange tube is constructed by forming, on a cylindrical tube peripheral wall, a plurality of projecting portions which project to an inside of the tube peripheral wall, and which are formed by pushing. The plurality of projecting portions are formed, respectively, into conical shapes across a tube axis, and are arranged along virtual spirals on the tube peripheral wall. Accordingly, it is possible to provide a heat exchange tube which facilitates formation of a plurality of projecting portions with the thickness hardly changed and without formation of protruded portions, and which is capable of contributing to enhancement of heat exchanging efficiency.
Public/Granted literature
- US20100224349A1 HEAT EXCHANGE TUBE Public/Granted day:2010-09-09
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