Enhanced heat exchange tube
US6164370A · kind A · utility
25Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1998 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Sep 24, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F1/40
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A heat exchange tube for air conditioning and refrigeration applications is internally enhanced with helically arranged fins. The fins are separated from adjacent fins by a trough. The heat transfer coefficient is increased by forming the fins with a height-to-trough width ratio, h:T, of from 1.3:1 to 2.5:1. A further gain in heat transfer coefficient is achieved by fins having a normalized height (fin height/tube inside diameter) of at least 0.02.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.