| 摘要 |
Provided is a compressor for making it possible to suppress a considerable decline in volumetric efficiency in a process for returning, to the interior of the compressor, high-temperature lubricating oil separated out by an oil separator. Lubricating oil is separated out by an oil separator (2) from refrigerant compressed by a compression mechanism (15), and the separated-out lubricating oil is returned to a high-pressure space (S1) on the interior of a casing (10) via an oil return passage (96). The high-pressure space (S1) is a space where refrigerant compressed by the compression mechanism (15) is discharged. As such, the lubricating oil separated out by the oil separator (2) will not be returned to a space filled with as-yet uncompressed refrigerant, and therefore the as-yet uncompressed refrigerant will not be heated and expanded by the high-temperature lubricating oil. This makes it possible to suppress any decline in volumetric efficiency in a compressor (1). |
