Heat pump type conditioner and exterior unit
US6343482B1 · kind B1 · utility
55Cited by
12References
8Claims
0Family size
Inventors
Key dates
| Filing date | Oct 31, 2000 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Oct 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat pump type air conditioner comprising: an exterior unit including an exterior heat exchanger, a plurality of compressors, a four-way valve, an exterior expansion device, and an injection circuit for injecting the liquid refrigerant into each of the plurality of compressors; and a plurality of interior units, each of which includes an interior heat exchanger, connected to the exterior unit. The exterior unit further comprises device for controlling flow rate of the liquid refrigerant to be injected in accordance with number of the plurality of interior units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.