The present invention, the main housing having a suction port to which the refrigerant is sucked from the outside; It is provided in the main housing driving unit generating the rotational force; A turning motion by the transmitted rotation force through the drive unit includes a fixed scroll to orbiting scroll having an orbiting wrap on the spiral, and having a fixed wrap on the meshes in conjunction with the main housing is positioned is fixed and corresponds to the orbiting wrap fit spiral scroll compression unit; And combines with the main housing comprises a discharge housing having a discharge port which is the inlet to scroll refrigerant compressed high-pressure in the compression unit flows, the refrigerant flowing from the inlet discharge, the discharge housing, draw a spiral from the inlet that is formed so that the discharge flow path that is communicated with the discharge ports formed on the outer periphery, corresponding to the flow direction of the discharge flow path formed in a circumferential direction, and the communication passage communicating with the discharge flow path, communicating with the discharge passage by the communication passage and comprises a resonant chamber having a resonant chamber having an expanded volume than the communication path so as to reduce the noise or pulsation of the refrigerant discharged from the scroll compression unit.
Therefore, and because it reduces the noise and pulsation of the fluid discharged by having the resonance chamber can avoid discomfort or performance degradation due to noise, by separating the oil contained in the fluid to avoid reliability degradation due to the oil shortage by re-flowing can.