Process for setting the static superheating in expansion valves for coolant circuits
US5916250A · kind A · utility
2Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | May 15, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/21
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
To effect the adjustment, the expansion valve is first set for a basic coolant (R.sub.o) to a substantially constant static overheating temperature (.DELTA.t.sub.oh) in a predetermined working range of the evaporator temperature and, when the coolant circuit is filled with a replacement coolant (R.sub.1, R.sub.2) differing from the basic coolant (R.sub.o), the pretension of its adjusting spring (46) is adjusted in accordance with a specification suited to the difference between the vapor pressure curves of the replacement coolant and those of the basic coolant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.