A METHOD FOR CONTROLLING A SUPPLY OF REFRIGERANT TO AN EVAPORATOR BASED ON TEMPERATURE MEASUREMENTS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Nov 10, 2016
app pub date -
Dec 16, 2014
filing date -
Jan 14, 2014
priority date (Note) -
Published
status (Latency Note)
Importance
|
US Family Size
|
Non-US Coverage
|
Abstract
A method for controlling a supply of refrigerant to an evaporator (2) of a vapour compression system (1), such as a refrigeration system, an air condition system or a heat pump. The opening degree of the expansion valve (3) is controlled on the basis of an air temperature, Tair, of air flowing across the evaporator (2), and in order to reach a reference air temperature, Tair, ref. The opening degree is set to the calculated opening degree, overlaid with a perturbation signal. A temperature signal, S2, representing a temperature of refrigerant leaving the evaporator (2) is monitored and analysed. In the case that the analysis reveals that a dry zone of the evaporator (2) is approaching a minimum length, the opening degree of the expansion valve (3) is decreased. This provides a safety mechanism which ensures that liquid refrigerant is prevented from passing through the evaporator (2).
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| EP | A1 | EP2894421 | Jan 14, 2014 |
| CN | B | CN105874289 | Dec 16, 2014 |
| RU | C1 | RU2640142 | Dec 16, 2014 |
| WO | A1 | WO2015106906 | Dec 16, 2014 |
International Classification(s)
- 2014 Application Filing Year
- F25B Class
- 1044 Applications Filed
- 850 Patents Issued To-Date
- 81.42 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- F25B Class
- 19.17 % this patent is cited more than
- 9 Age