Heat exchanger tube and method of forming the same
US8353335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2009 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Jun 9, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F1/40
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Flat heat exchanger tubes having two narrow and two broad sides are shown and described, wherein the flat tubes can be manufactured from two continuous strips having a relatively large curve on one longitudinal edge of the strips and having a relatively small curve on the other longitudinal edge of the strips. The two strips can be arranged laterally transposed with respect to one another to form the wall of the flat tubes, so that the relatively large curve of the longitudinal edge of one strip holds in itself the relatively small curve of the longitudinal edge of the other strip to form the narrow sides of the flat tubes. The strips can be formed with at least one further contoured portion which extends in the longitudinal direction of the flat tubes and which improves cohesion of the flat tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.