Heat pump system defrosting operations
US11209204B2 · kind B2 · utility
1Cited by
2References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2019 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jan 7, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/2501
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat pump system including a charge compensator having a liquid line port for an inflow of a refrigerant into the charge compensator and for an outflow of the refrigerant from the charge compensator. The heat pump system further includes an isolation valve configured to control flows of the refrigerant to and from the charge compensator through a liquid line piping of the heat pump system based on whether the heat pump system is operating in a cooling mode, a defrost mode, or a heating mode, where the liquid line port is fluidly coupled to the liquid line piping of the heat pump system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.