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公开(公告)号：US20200240715A1
公开(公告)日：2020-07-30
申请号：US16636981
申请日：2018-08-07
Applicant: Modine Manufacturing Company
Inventor： David Mast
Abstract: A flat tube for a heat exchanger is fabricated from a single sheet of metal material. The sheet of metal material has a first edge and a second edge, which are arranged adjacent to one another between a pair of broad walls of the tube. Flat sections extend from the edges and are disposed against one another. A pair of rounded walls arranged at an end of the tube connect the flat sections to the broad walls, and are joined by a weld bead within a space bounded by the outer surfaces of the rounded walls.
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