Refrigerant charge level detection
US8810419B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2014 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Feb 6, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B49/005
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An exemplary embodiment of a refrigerant charge monitoring system includes first and second sensors. The first sensor is operable for sensing temperature of a liquid refrigerant line that is connected to, within, or extending from an outlet of a condenser. The second sensor is operable for sensing pressure of the liquid refrigerant line. A controller is configured to determine at least one target pressure value from the sensed temperature of the liquid refrigerant line. The controller is configured to determine if the level of refrigerant charge is at, above or below an acceptable level based on a comparison of the sensed pressure of the liquid refrigerant line to the at least one target pressure value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.