Patent ID: 7040880

Claim:
A horizontal rotary compressor comprising: a horizontally long hermetic receptacle in which a lubricating oil is accumulatively preserved in an inner bottom portion; an electrically powered compressor body comprising a rotation axis which is accommodated in the hermetic receptacle and which is supported through bearings to be horizontally rotatable, a rotary compressor mechanism portion provided in one end portion of the rotation axis, and an electric motor portion provided in the other end portion of the rotation axis; a partition member which partitions an interior of the hermetic receptacle into left and right sides, and one side is used as an oil storage portion space in which the compressor mechanism portion is positioned and the other side is used as an electric motor side space in which the electric motor portion is positioned; an oil communication opening which is provided below the partition member and which communicates between the oil storage portion space and the electric motor side space, thereby to guide the lubrication oil in the side of the electric motor space to the oil storage portion space; a gas communication opening which is provided in an upper portion of the partition member and which guides to the oil storage portion space high-pressure gases compressed in the compressor mechanism portion and discharged to the electric motor side space; and a valve cover which temporarily accepts high-pressure gases compressed in the compressor mechanism portion and discharged, damps noise, and discharges the gases into the hermetic receptacle through a gas opening, wherein an area (Ao) of the gas opening of the valve cover is larger than an area (A 1 ) of the gas communication opening of the partition member (Ao>A 1 ).