SCREW-TYPE COMPRESSOR

摘要

In order to improve a screw-type compressor, comprising a housing, at least one screw rotor which is arranged in a compressor housing of the housing, a lubricant sump which is arranged on the high-pressure side and in which lubricant is collected, and a lubricant feed device which feeds lubricant out of the lubricant sump to the at least one screw rotor, to such an extent that, with sufficient lubrication, the quantity of circulating lubricant can be kept as low as possible, it is proposed that the lubricant feed device comprises a first lubricant feed system and a second lubricant feed system, that the first lubricant feed system feeds lubricant to the at least one screw rotor during operation of the screw-type compressor, and that the second lubricant feed system additionally feeds lubricant to the at least one screw rotor, and in the process can be activated and can be deactivated.