Tube and heat exchanger provided with tube
US9726439B2 · kind B2 · utility
1Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2013 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Feb 20, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D2021/0084
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A tube used in a heat exchanger, wherein a tube body includes a curved end portion, a pair of parallel portions, a pair of inclination portions, and a fixed portion in which a long end part extending from one of the pair of inclination portions is bent to hold therebetween a short end part extending from the other of the pair of inclination portions, and the tube is a pipe member having a flattened shape in cross-section. Poor brazing is reduced by making the inclination angle of at least part of the other inclination portion with respect to the flat plate portion larger than that of the one inclination portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.