| 摘要 |
PROBLEM TO BE SOLVED: To obtain a hermetic screw compressor capable of entirely preventing flowing out of high temperature oil supplied to a low pressure side bearing to low pressure side (motor side), and is easy in maintenance. SOLUTION: The hermetic screw compressor is equipped with a male rotor 16, a female rotor 17 engaging with the male rotor, a motor 4 connected with a low pressure side shaft part 27 of the male rotor, low pressure side bearings 9, 10, supporting the low pressure side shaft part of each of the rotors, respectively, high pressure side bearings supporting high pressure side shaft part of each of the rotors, respectively, and casings 1, 2, 3 to accommodate them. A contact type sealing arrangement 24 sealing the shaft part between the low pressure side bearing of the low pressure side bearing part of the male rotor and the motor is arranged, the contact type sealing arrangement is built in within a cover 25 detachable in the axial direction with respect to the casing, and is attached to the casing through the cover. COPYRIGHT: (C)2008,JPO&INPIT
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