System and method for controlled expansion valve adjustment
US8196421B2 · kind B2 · utility
11Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2006 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Aug 21, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/21175
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for controlling temperature pulldown of an enclosure with a refrigeration system having a compressor, a heat rejecting heat exchanger, an expansion valve, and an evaporator comprises circulating a refrigerant through the refrigeration system, sensing a parameter of the enclosure, determining a desired evaporator pressure based upon the parameter sensed, and adjusting the expansion valve as a function of the desired evaporator pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.