Valve, in particular expansion valve for refrigeration systems, and a method for the manufacture thereof
US5810332A · kind A · utility
1Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Feb 7, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B41/335
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a valve, in particular an expansion valve for refrigeration systems, at least the housing (2) and all nozzles (3, 4, 5) are deep-drawn parts of stainless steel having a carbon content of less than 0.05%. These parts are joined to one another by soldering. The steel has such a low content of carbon that despite being subjected to the effects of heat during soldering, it is practically insensitive to intercrystalline corrosion. This produces a visually attractive valve that is not harmful to the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.