Patent ID: 8337185

Claim:
A rotary compressor comprising: a hermetically-sealed upright cylindrical compressor casing having a refrigerant gas ejection portion disposed in an upper portion and a refrigerant gas suction portion disposed in a lower portion; a compression unit provided in a lower portion of the compressor casing for sucking refrigerant gas from a low pressure side of a refrigerating cycle through the suction portion and ejecting the refrigerant gas from the ejection portion to a high pressure side of the refrigerating cycle through the inside of the compressor casing; a motor provided in an upper portion of the compressor casing for driving the compression unit through a rotating shaft; a gas hole formed in a rotor of the motor for causing refrigerant gas below the motor to pass upward; and an oil separation plate comprising: a central cylindrical portion of which an inside diameter is formed larger than an outside diameter of the rotating shaft, so that the central cylindrical portion is not in contact with the rotating shaft; and a curved portion continuous to the central cylindrical portion and curved in a radial direction, and an outer peripheral disk portion continuous to the curved portion, wherein the oil separation plate is fixed on the rotor by a rivet so that a lower end portion of the central cylindrical portion comes into close contact with an upper end of the rotor or an upper end plate of the rotor at its entire periphery.