Heat pump system
US11179999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Jan 6, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/2507
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat pump system includes a compressor that compresses and discharges a refrigerant, a decompressor that decompresses the refrigerant, an outdoor unit that exchanges heat between the refrigerant and an outside air, an evaporator that evaporates the refrigerant, a condenser that condenses the refrigerant, an internal heat exchanger, an accumulator that separates the refrigerant into a gas refrigerant and a liquid refrigerant, and a flow pathway changing portion. The internal heat exchanger includes a high-pressure passage through which a high-pressure refrigerant flows, and a low-pressure passage through which a low-pressure refrigerant flows, the internal heat exchanger exchanging heat between the refrigerant flowing through the high-pressure passage and the refrigerant flowing through the low-pressure passage. The flow pathway changing portion that switches between a cooling pathway and a heating pathway. According to this heat pump system, a cooling capacity and a heating capacity can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.