Air-conditioning apparatus with relay unit
US9435549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2009 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Apr 24, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2313/02743
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
To provide an air-conditioning apparatus which achieves improvement of safety and further achieves saving of energy without circulating a refrigerant in or near an indoor unit. The air-conditioning apparatus includes one expansion device disposed on an outlet side of a heat exchanger related to the heat medium on the heating side. Another expansion device is disposed on an inlet side of a heat exchanger related to the heat medium on the cooling side such that the expansion devices are directly connected through a connecting pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.