| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin rotor compressor ensuring the fixing between a rotor shaft and a screw rotor part. SOLUTION: In the liquid cooling type screw compressor provided with the screw rotor in which the rotor 9 made of a synthetic resin is formed around a rotor shaft 8 made of a metal, a helical groove 11 is provided on a joint part of the rotor shaft 8 and the rotor 9 of the screw rotor 3 and a height dimension of the helical groove is set to a value calculated by a numerical equation taking consideration to a thermal expansion ratio of the rotor shaft made of the metal and a thermal expansion ratio of the rotor 9 made of the resin. COPYRIGHT: (C)2004,JPO
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