A rotary compressor is a type of compressor whose working cycle can be divided into three processes: suction, compression, and exhaust. As the rotor rotates, each pair of meshing teeth completes the same working cycle one after another. In a rotary compressor, the upper part is an electric motor and the lower part is a compressor. The entire cylinder is almost completely immersed in refrigeration oil. The rotor in the cylinder is driven by an eccentric shaft and rolls along the cylinder wall in the cylinder. There is a through groove in the cylinder wall, and there is a slider inside the groove.
The compression process of a rotary compressor is achieved through the forced movement of the rotating components. When the rotor of a rotary compressor rotates, the spiral rotor groove will be filled with gas when passing through the suction port, and then as the rotor rotates, the gas is compressed and discharged. Throughout the process, the refrigeration oil plays a role in cooling and lubrication, ensuring the efficient operation of the compressor.