Heat exchange tube with embossed enhancement
US6067712A · kind A · utility
24Cited by
33References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1997 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Mar 10, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49391
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
There is provided heat exchange tube formed from a ductile metal strip which is formed into a generally circular configuration with the opposing longitudinal edges of the strip welded together. Both surfaces of the strip are enhanced. One surface of the tube is enhanced with protrusions in the shape of truncated cones. The ratio of the pitch between longitudinally aligned protrusions and transversely aligned protrusions maximizes the formation and maintenance of vortexes in a flowing fluid along the tube surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.