Method for manufacturing a heat pipe having an enlarged portion
US7275409B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2006 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Apr 17, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49353
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a heat pipe having an enlarged portion includes the steps of: preparing a hollow tubular material having a uniform outer diameter; forming the tubular material with an enlarged portion having a different or larger outer diameter by narrowing or enlarging the tubular material; arranging a capillary structure into the tubular material; filling a working fluid into the tubular material after sealing one end of the tubular material; sealing the end to form a heat pipe after performing a degassing operation; and pressing the enlarged portion obtained in the previous step to form a flattened enlarged portion on the heat pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.