Freeze accommodating heat pipe
US4194559A · kind A · utility
28Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1978 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | Nov 1, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2200/005
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat pipe wick which can survive freezing of the heat transfer fluid within the heat pipe and return to full operation automatically. A flexible high lift wick is used with a limited liquid inventory to prevent damage from freezing. The limited amount of liquid is completely retained in the wick at all times by capillary forces preventing puddling at the lowest point in the heat pipe, thus avoiding damage to the casing by expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.