Process for the production of a refrigerating circuit comprising non-evaporable getter material
US6588220B1 · kind B1 · utility
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8Claims
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Key dates
| Filing date | Nov 20, 2000 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Nov 20, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B43/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A process is provided for production of a refrigerating circuit comprising non-evaporable getter material, wherein said getter material, previously introduced into the same circuit, is heated to a temperature of at least 200° C. during or immediately after the circuit evacuating step, at a residual atmospheric gas pressure of not less than 10 mbar, before introduction of the mixture of cooling fluids and before the circuit sealing. Preferred is the use of zirconium-based getter alloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.