SCREW COMPRESSOR

PROBLEM TO BE SOLVED: To provide a screw compressor enabling to cool bearing lubricating oil in the screw compressor. SOLUTION: Cooling water is supplied to a rotor chamber 3 through a cooling pipe 26 provided passing through an oil reservoir 24 which reserves lubricating oil in a bearing chamber 10 and in which a connecting gear 19 for rotating force to be transmitted from a driving source thereto is dipped at least in part, and through a cooling pipe 27 provided passing through an oil reservoir 25 which reserves the lubricating oil in the bearing chamber 11 and in which a synchronizing gear 22 for synchronously rotating rotor shafts 8, 9 is dipped at least in part. The diameter of the cooling pipe 26 passing through the oil reservoir 24 in which the connecting gear 19 is dipped is larger than the diameter of the cooling pipe 27 passing through the oil reservoir 25 in which the synchronizing gear 22 is dipped. COPYRIGHT: (C)2011,JPO&INPIT