ROTARY COMPRESSOR

PROBLEM TO BE SOLVED: To provide a rotary compressor to feed given lubricating oil during operation, reduce an amount of lubricating oil flowing out of a suction pipe during a stoppage, and prevent the occurrence of a trouble due to oil compression during starting. SOLUTION: A crank shaft 4 is stopped by a press mechanism in a position wherein a feed oil passage 10 on the shaft side and the communication groove 15 of a bearing 6 are positioned facing each other during de-energization of an electrically-operated element. This constitution forms a communication passage 16 to interconnect the inner peripheral part of a rolling piston 7 and a gas refrigerant space in a closed container 1. During a stop, a gas refrigerant in the closed container 1 flows in the lower pressure side of a cylinder 5 through the side of the rolling piston 7. The low pressure side in the cylinder 5 is balanced with a pressure in the closed container 1 and inflow of lubrication oil 8 to the outside of a rotary compressor is prevented from occurring. This constitution sucks the lubrication oil 8, flowing out to the outside of the rotary compressor, during starting, and prevents the occurrence of a trouble, such as the occurrence of oil compression causing seizure of the crank shaft 4.