Air-conditioner and method of returning and cooling compressor oil
US9115917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2009 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Apr 9, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2500/08
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An air-conditioner capable of suppressing increase in the suction temperature of a compressor is provided. The air-conditioner according to the present invention has a refrigerant circuit in which a compressor, an oil separator, a heat source side heat exchanger, a throttle device, and a use side heat exchanger are connected in series, an oil returning circuit that connects the oil separator with the suction side of the compressor, and a decompression mechanism provided in the oil return circuit. The oil return circuit is installed by piping so as to exchange heat with a part of the heat source side heat exchanger at the upstream side of the decompression mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.