Swirl-generating, helical agitator for heat exchanger tubes
US4700749A · kind A · utility
2Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1986 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Sep 23, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F13/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A swirl-generating helical agitator for tubular heat-exchangers comprises a strip of material twisted into a helix and has a cross-section including opposed double inflections. The double inflections have lateral portions inclined at an angle of inclination with respect to and on either side of a central portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.