Patent ID: 7131821

Claim:
An internal intermediate pressure multistage compression type rotary compressor comprising an electric element in a hermetic shell case, and first and second rotary compression elements being positioned under the electric element and driven by a rotary shaft of the electric element, wherein refrigerant compressed by said first rotary compression element is discharged into the hermetic shell case, and the discharged intermediate pressure refrigerant is compressed by said second rotary compression element, and said multistage compression type rotary compressor further comprising a refrigerant introduction pipe for introducing the refrigerant in the hermetic shell case over the electric element into the second rotary compression element through an outside of the hermetic shell case, and a notch communicating with an interior of the hermetic shell case being formed on the side surface of a stator of the electric element, and an inlet of the refrigerant introduction pipe is allowed to correspond to a notch of the stator, wherein the notch of the stator is opened to the interior of the hermetic shell case over the electric element at the upper end thereof, and closed at the lower end thereof.