Compressor

A compressor for compressing refrigerant, comprising a power unit arranged in a power unit space which is delimited at least partially by a power unit housing, having a suction gas volume and having a high-pressure volume, wherein the high-pressure volume is in fluid communication with the power unit space via a second fluid connection, wherein the compressor furthermore has a first fluid connection which can be placed in or is in fluid communication with an oil-conducting volume of a refrigeration plant or of the compressor, wherein an oil separator is arranged in the first fluid connection,

• wherein the oil separator has a centrifugal oil separator,
• wherein the oil separator has an oil outlet which is in fluid communication, via a third fluid connection, with the second fluid connection between the high-pressure volume and the power unit space, and
• wherein the oil outlet is in fluid communication with an injector, which is arranged in the second fluid connection between the high-pressure volume and power unit space and which is in fluid communication with the second fluid connection, or with a jet pump which is arranged there and which is in fluid communication with the second fluid connection.