Method for controlling operation of air conditioning system
US7213404B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2004 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Sep 18, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for controlling the operation of an air conditioning system, including the steps of operating the air conditioning system until a frequency of a compressor reaches to a preset target frequency, stabilizing the operation of the system after the frequency of the compressor reaches to the preset target frequency, and operating the system at a fixed level. The system stabilizing step includes a first step for regulating opening of the expansion device, to increase the degree of superheat of refrigerant at an outlet of the compressor, comparing a temperature change rate of the condenser with respect to time to a preset temperature change rate, and a second step for, if the temperature change rate of the condenser with respect to time is lower than the preset temperature changer rate, comparing the degree of superheat of refrigerant at an outlet of the compressor to a preset degree of superheat of refrigerant at an outlet of the compressor, and opening the opening of the expansion device to a preset state, if the degree of superheat of refrigerant at an outlet of the compressor is higher than the preset degree of superheat of refrigerant at an outlet of the compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.