Heat pipe with hydrogen getter
US6209625A · kind A · utility
Inventor
Key dates
| Filing date | Jun 14, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Jun 14, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D15/0258
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Disclosed is an improved heat pipe construction. The heat pipe includes a tubular enclosure with upper and lower ends enclosed by end caps. One such end cap employs a communication port such that a working fluid can be introduced into the interior of the pipe. Water is disclosed as the working fluid in the preferred embodiment. The water is adapted absorb heat from the surrounding atmosphere evaporate and condense it the upper portion of the pipe. Typically, a portion of the water reacts with the container to evolve non-condensable hydrogen gas. Such gas diminishes the effectiveness of the heat pipe. To reduce the hydrogen gas a active agent is employed. The opposite end cap of the pipe includes a container into which a volume of the active agent is positioned. A preferred active agent composition includes 96 percent by weight PbO.sub.x and 4 percent by weight PbSo.sub.4. The PbO.sub.x is preferably electrochemically formed, with x varying between 1.85 and 2.05. Disclosed are various active agent formulations and active agent containers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.