| 摘要 |
PROBLEM TO BE SOLVED: To provide technology for keeping overall dynamic balance to enable reduction of vibration and noise during high speed operation.SOLUTION: A rotary compressor comprises a drive motor 20 having a rotor 22 and a stator 21, and a compression part 10 that has a first cylinder 110 and a second cylinder 120, in the insides of which a first working chamber 11 and a second working chamber 12 are formed, sucks a medium into the first working chamber 11 and the second working chamber 12 through rotation driving of the drive motor 20 and compresses the sucked medium. A displacement volume of the working chamber of one of the first cylinder 110 and the second cylinder 120 of the compression part 10 is different from a displacement volume of the working chamber of the other cylinder. The drive motor 20 has a compression part side balancer 221 at the end on the compression part 10 side in the axial direction of the rotor 22 and has no balancer at the end on the opposite side from the compression part 10.SELECTED DRAWING: Figure 1 |
