System and method for managing fluid level in a HVAC system
US9523523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2013 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Feb 5, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/5762
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A system for managing fluid level in an HVAC system includes a spill over tank for an evaporator of the HVAC system. The spill over tank may be configured to receive a refrigerant directed out of the evaporator. The spill over tank may be configured to include an outlet directing refrigerant into the spill over tank, out of the spill over tank and flowing back to a compressor of the HVAC system. The spill over tank may be equipped with a refrigerant level sensor measuring a refrigerant level in the spill over tank. The measured refrigerant level in the spill over tank may be used to control and/or maintain a refrigerant level in the evaporator, and/or to control a return refrigerant flow into the compressor of the HVAC system so as to manage an oil return to the compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.