SCREW COMPRESSOR

PURPOSE:To suppress the rise of temperature of the discharge fluid by preventing the circulation of the high temperature oil between a screw rotor and an oil separator through the formation of short-circuit, accelerating the heat radiation of the separated oil by allowing the oil to flow on the whole of the bottom part of the oil separator, and lowering the oil temperature poured into the screw rotor. CONSTITUTION:Above the oil reservoir part 7 of an oil separator 6, a plate shaped receiving stop body 11 which is positioned direct under a taking-in part 3 for the discharged fluid and is inclined downward toward the rear part from the front part is arranged, and the separating oil supplied from the discharged fluid is transported to the rear part of the oil separator 6 along the inclined surface of the receiving stop body 11, and after the oil flows on the whole of the bottom surface of the oil separator 6, the oil is allowed to flow into an oil chamber 9 formed on a body casing 2 side from a lower part communication port 8 on the front side, and is poured into a screw rotor 1 through a filter 90 and an injection passage 10.