Vapor injection heat pump and control method
US10737552B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2019 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Oct 9, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/2513
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A vapor injection heat pump includes a compressor, a first valve directing a refrigerant of the compressor to a first or second heat exchanger dependent upon a mode of operation, an expansion device receiving the refrigerant from at least one of the heat exchangers, a vapor generator receiving an expanded liquid/vapor refrigerant mix from the first expansion device and directing a vapor component to a first input port of the compressor and a liquid component to at least one of the second heat exchanger and a third heat exchanger, via controlling a second valve, a second expansion device, a third expansion device, and a third valve. A second input of the compressor receives an output refrigerant from at least one of the second heat exchanger and the third heat exchanger dependent upon the mode of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.