Patent ID: 9568004
Date: 2017-02-14
CPC Classifications: F04C

Claim:
1. A rotary compressor comprising: a closed casing comprising an oil reservoir; a cylinder disposed inside the closed casing; a piston disposed inside the cylinder; a bearing member attached to the cylinder so as to form a cylinder chamber between the cylinder and the piston; a vane that partitions the cylinder chamber into a suction chamber and a discharge chamber; a suction port though which a refrigerant to be compressed is introduced into the suction chamber; a discharge port through which the compressed refrigerant is discharged from the discharge chamber, the discharge port being formed in the bearing member; and a partition member attached to the bearing member so as to form, together with the bearing member, a refrigerant discharge space configured to retain the refrigerant discharged from the discharge chamber through the discharge port, wherein the bearing member is provided with a first recess on the same side as the suction port with respect to a reference plane, the reference plane being a plane including a central axis of the cylinder and a center of the vane when the vane protrudes maximally toward the central axis of the cylinder, and a portion of oil stored in the oil reservoir flows into the first recess, and thereby an oil retaining portion is formed.