Refrigerant charge control system for heat pump systems
US11879673B2 · kind B2 · utility
0Cited by
25References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2019 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Sep 20, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/2507
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Air sourced or water sourced packaged self-contained heat pump units having indoor and outdoor sections are provided. The heat pump unit distributes its total charge of refrigerant between a main refrigerant system and a refrigerant charge control system while keeping the total charge of refrigerant in the heat pump unit constant. The refrigerant charge control system has a refrigerant reservoir, an inlet conduit, and an outlet conduit that extends into the reservoir such that its lowest point is close to the bottom of the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.