Portions of tubes for heat exchangers

Abstract

1. Name of the designed product: part of a tube for a heat exchanger. 2. Use of the designed product: the whole product is a tube for a heat exchanger for exchanging heat between a heat medium flowing inside the tube and a heat medium in contact with the outside of the tube, and the part of the product is the part of the tube. 3. Design points of the designed product: in the shape of the solid line part. 4. Picture or photograph best showing the design points: enlarged view of part A. 5. Other circumstances needing explanation: the content of the dotted line part in the drawing is not claimed; the C-C sectional view shows the sectional structure of the tube wall part in the enlarged view of part B, and the lower part of the tube wall structure is omitted; the double-dot chain line in the drawing is an omitted length drawing.

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