| 摘要 |
The present invention provides a 2-stage rotary compressor which includes a hermetic container, a rotating shaft provided in the hermetic container and transferring a rotation force, a low pressure compression assembly including a low pressure roller eccentrically rotated around the center of the rotating shaft, a low pressure cylinder accommodating the low pressure roller, and a low pressure vane partitioning the inner space of the low pressure cylinder, a high pressure compression assembly including a high pressure roller eccentrically rotated around the center of the rotating shaft, a high pressure cylinder accommodating the high pressure roller, and a high pressure vane partitioning the inner space of the high pressure cylinder, a connection pipe providing a passage so that the refrigerant compressed in the low pressure compression assembly can be introduced into the high pressure compression assembly, and an injection pipe connected to the connection pipe. The inner diameter of a middle portion of the connection pipe is greater than the inner diameters of both end portions of the connection pipe. |
