Refrigerant charge management
US11215388B2 · kind B2 · utility
0Cited by
15References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2019 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | May 18, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B13/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A system includes an indoor HVAC unit and an outdoor HVAC unit in communication with the indoor HVAC unit. The outdoor HVAC unit comprises a compressor, a vapor header in communication with the indoor HVAC unit and compressor, and at least one check valve to allow vapor refrigerant flow into the indoor HVAC unit during a cooling mode and to prevent liquid refrigerant from exiting the vapor header when in a heating mode. A method of operating said system is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.