| 摘要 |
<p>There is provided a screw compressor which needs neither a bed nor a coupling, therefore not involving alignment, and yet in which gas is not heated by the motor. The screw compressor has a compression section 21 and a motor section 22 inside a casing 20. Both a rotor 27 of a motor 23 and a screw 26 of the compression section 21 are fixed to one main shaft 25. The main shaft 25 is supported at three points by a total of three bearings of both-end rolling bearings 31, 32 and a central rolling bearing 33. A refrigerant passage 45 passes only through the compression section 21 and not through the motor section 22. <IMAGE></p> |
