Patent ID: 9021830
Filing Date: 2015-05-05
Classification: F04B,F25B

Abstract:
1. 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 a refrigerant outflow portion, and 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, wherein the compressor comprises an oil reservoir which is the bottom part of the power unit space, and wherein a valve is provided between the refrigerant outflow portion of the oil separator and a suction gas volume to regulate pressure inside the power unit space.