Heat pipe and method of producing the same
US7472479B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2006 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jan 7, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53113
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat pipe (50) and a method (100) of producing the heat pipe are disclosed. The method includes the following steps: (1) inserting a mandrel (10) into a hollow metal casing (20) with a porous structure (30) combined to an outer surface of the mandrel; (2) filling powders (40) into a space formed between the hollow metal casing and the porous structure; (3) sintering the filled powders; (4) drawing the mandrel out of the hollow metal casing; and (5) sealing the hollow metal casing with a working fluid filled therein. The heat pipe produced by this method includes a composite wick structure (60) arranged in the hollow metal casing. By using this method, the mandrel can be easily drawn out of the hollow metal casing after the filled powders are sintered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.