Turbulators in enhanced tubes
US10480872B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Sep 14, 2015 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Jan 20, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2001/428
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchange tube combines an external surface feature, for example having crushed fins and cavities, which can have very high boiling enhancement characteristics, with an internal surface feature, for example having high performing intersecting helices, e.g. “cross hatched” with an intersecting helix angle. The new tube can provide a high performing tube in a shell and tube evaporator that can be relatively smaller, more efficient, and that can use relatively lower refrigerant charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.