Liquid nitrogen capillary heat exchanger
US5582015A · kind A · utility
4Cited by
11References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1994 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Dec 27, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D3/105
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A liquid nitrogen capillary tube heat exchanger comprises a vertical array of alternating vaporization chambers and pressure control chambers connected together in series. The vaporization chambers each have a plurality of capillary tubes mounted in exterior loops along the exterior of the chamber in communication with liquid nitrogen in the chamber. The capillary tubes provide a contolled rate of vaporization of the liquid nitrogen and increased exterior surface area to facilitate refrigeration. The pressure control chambers are filled with copper filings and a dessicant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.